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Squashed 'packages/mcp-typescript/' changes from dcc30be..e665be0

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e665be0 Merge pull request #14 from modelcontextprotocol/justin/fix-race-condition
be9c1fe Merge branch 'main' into justin/fix-race-condition
36ba802 Merge pull request #17 from modelcontextprotocol/ashwin/capabilities
a1b8886 yarn build
7b718de Report errors when start() is called multiple times
83a43fd Protocol.connect() can automatically call Transport.start()
8d80cc5 Merge branch 'main' into justin/fix-race-condition
bcb4b21 add server capabilities derivation
e9c64fb Update tests and CLI
2b0599e Update server SSE transport
c39f808 Update client transports
87ae7ff Add start() to Transport interface

git-subtree-dir: packages/mcp-typescript
git-subtree-split: e665be068b9d2baa65f37fd7c2f69f68f77e57b9
This commit is contained in:
Ashwin Bhat
2024-10-16 16:12:48 -07:00
parent 50b812b120
commit 23ca80ed66
44 changed files with 228 additions and 97 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
packages/mcp-typescript/dist/cli.js generated vendored
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@@ -26,16 +26,13 @@ async function runClient(url_or_command, args) {
// Ignore // Ignore
} }
if ((url === null || url === void 0 ? void 0 : url.protocol) === "http:" || (url === null || url === void 0 ? void 0 : url.protocol) === "https:") { if ((url === null || url === void 0 ? void 0 : url.protocol) === "http:" || (url === null || url === void 0 ? void 0 : url.protocol) === "https:") {
clientTransport = new SSEClientTransport(); clientTransport = new SSEClientTransport(new URL(url_or_command));
await clientTransport.connect(new URL(url_or_command));
} }
else if ((url === null || url === void 0 ? void 0 : url.protocol) === "ws:" || (url === null || url === void 0 ? void 0 : url.protocol) === "wss:") { else if ((url === null || url === void 0 ? void 0 : url.protocol) === "ws:" || (url === null || url === void 0 ? void 0 : url.protocol) === "wss:") {
clientTransport = new WebSocketClientTransport(); clientTransport = new WebSocketClientTransport(new URL(url_or_command));
await clientTransport.connect(new URL(url_or_command));
} }
else { else {
clientTransport = new StdioClientTransport(); clientTransport = new StdioClientTransport({
await clientTransport.spawn({
command: url_or_command, command: url_or_command,
args, args,
}); });
@@ -52,7 +49,7 @@ async function runServer(port) {
let servers = []; let servers = [];
app.get("/sse", async (req, res) => { app.get("/sse", async (req, res) => {
console.log("Got new SSE connection"); console.log("Got new SSE connection");
const transport = new SSEServerTransport("/message"); const transport = new SSEServerTransport("/message", res);
const server = new Server({ const server = new Server({
name: "mcp-typescript test server", name: "mcp-typescript test server",
version: "0.1.0", version: "0.1.0",
@@ -62,7 +59,6 @@ async function runServer(port) {
console.log("SSE connection closed"); console.log("SSE connection closed");
servers = servers.filter((s) => s !== server); servers = servers.filter((s) => s !== server);
}; };
await transport.connectSSE(req, res);
await server.connect(transport); await server.connect(transport);
}); });
app.post("/message", async (req, res) => { app.post("/message", async (req, res) => {
@@ -87,7 +83,6 @@ async function runServer(port) {
version: "0.1.0", version: "0.1.0",
}); });
const transport = new StdioServerTransport(); const transport = new StdioServerTransport();
await transport.start();
await server.connect(transport); await server.connect(transport);
console.log("Server running on stdio"); console.log("Server running on stdio");
} }

2
packages/mcp-typescript/dist/cli.js.map generated vendored
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@@ -1 +1 @@
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4
packages/mcp-typescript/dist/client/sse.d.ts generated vendored
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@@ -10,10 +10,12 @@ export declare class SSEClientTransport implements Transport {
private _eventSource?; private _eventSource?;
private _endpoint?; private _endpoint?;
private _abortController?; private _abortController?;
private _url;
onclose?: () => void; onclose?: () => void;
onerror?: (error: Error) => void; onerror?: (error: Error) => void;
onmessage?: (message: JSONRPCMessage) => void; onmessage?: (message: JSONRPCMessage) => void;
connect(url: URL): Promise<void>; constructor(url: URL);
start(): Promise<void>;
close(): Promise<void>; close(): Promise<void>;
send(message: JSONRPCMessage): Promise<void>; send(message: JSONRPCMessage): Promise<void>;
} }

2
packages/mcp-typescript/dist/client/sse.d.ts.map generated vendored
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@@ -1 +1 @@
{"version":3,"file":"sse.d.ts","sourceRoot":"","sources":["../../src/client/sse.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,SAAS,EAAE,MAAM,wBAAwB,CAAC;AACnD,OAAO,EAAE,cAAc,EAAwB,MAAM,aAAa,CAAC;AAEnE;;;;;GAKG;AACH,qBAAa,kBAAmB,YAAW,SAAS;IAClD,OAAO,CAAC,YAAY,CAAC,CAAc;IACnC,OAAO,CAAC,SAAS,CAAC,CAAM;IACxB,OAAO,CAAC,gBAAgB,CAAC,CAAkB;IAE3C,OAAO,CAAC,EAAE,MAAM,IAAI,CAAC;IACrB,OAAO,CAAC,EAAE,CAAC,KAAK,EAAE,KAAK,KAAK,IAAI,CAAC;IACjC,SAAS,CAAC,EAAE,CAAC,OAAO,EAAE,cAAc,KAAK,IAAI,CAAC;IAE9C,OAAO,CAAC,GAAG,EAAE,GAAG,GAAG,OAAO,CAAC,IAAI,CAAC;IAmD1B,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;IAMtB,IAAI,CAAC,OAAO,EAAE,cAAc,GAAG,OAAO,CAAC,IAAI,CAAC;CA0BnD"} {"version":3,"file":"sse.d.ts","sourceRoot":"","sources":["../../src/client/sse.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,SAAS,EAAE,MAAM,wBAAwB,CAAC;AACnD,OAAO,EAAE,cAAc,EAAwB,MAAM,aAAa,CAAC;AAEnE;;;;;GAKG;AACH,qBAAa,kBAAmB,YAAW,SAAS;IAClD,OAAO,CAAC,YAAY,CAAC,CAAc;IACnC,OAAO,CAAC,SAAS,CAAC,CAAM;IACxB,OAAO,CAAC,gBAAgB,CAAC,CAAkB;IAC3C,OAAO,CAAC,IAAI,CAAM;IAElB,OAAO,CAAC,EAAE,MAAM,IAAI,CAAC;IACrB,OAAO,CAAC,EAAE,CAAC,KAAK,EAAE,KAAK,KAAK,IAAI,CAAC;IACjC,SAAS,CAAC,EAAE,CAAC,OAAO,EAAE,cAAc,KAAK,IAAI,CAAC;gBAElC,GAAG,EAAE,GAAG;IAIpB,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;IAyDhB,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;IAMtB,IAAI,CAAC,OAAO,EAAE,cAAc,GAAG,OAAO,CAAC,IAAI,CAAC;CA0BnD"}

14
packages/mcp-typescript/dist/client/sse.js generated vendored
View File

@@ -6,9 +6,15 @@ import { JSONRPCMessageSchema } from "../types.js";
* This uses the EventSource API in browsers. You can install the `eventsource` package for Node.js. * This uses the EventSource API in browsers. You can install the `eventsource` package for Node.js.
*/ */
export class SSEClientTransport { export class SSEClientTransport {
connect(url) { constructor(url) {
this._url = url;
}
start() {
if (this._eventSource) {
throw new Error("SSEClientTransport already started! If using Client class, note that connect() calls start() automatically.");
}
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
this._eventSource = new EventSource(url.href); this._eventSource = new EventSource(this._url.href);
this._abortController = new AbortController(); this._abortController = new AbortController();
this._eventSource.onerror = (event) => { this._eventSource.onerror = (event) => {
var _a; var _a;
@@ -23,8 +29,8 @@ export class SSEClientTransport {
var _a; var _a;
const messageEvent = event; const messageEvent = event;
try { try {
this._endpoint = new URL(messageEvent.data, url); this._endpoint = new URL(messageEvent.data, this._url);
if (this._endpoint.origin !== url.origin) { if (this._endpoint.origin !== this._url.origin) {
throw new Error(`Endpoint origin does not match connection origin: ${this._endpoint.origin}`); throw new Error(`Endpoint origin does not match connection origin: ${this._endpoint.origin}`);
} }
} }

2
packages/mcp-typescript/dist/client/sse.js.map generated vendored
View File

@@ -1 +1 @@
{"version":3,"file":"sse.js","sourceRoot":"","sources":["../../src/client/sse.ts"],"names":[],"mappings":"AACA,OAAO,EAAkB,oBAAoB,EAAE,MAAM,aAAa,CAAC;AAEnE;;;;;GAKG;AACH,MAAM,OAAO,kBAAkB;IAS7B,OAAO,CAAC,GAAQ;QACd,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;YACrC,IAAI,CAAC,YAAY,GAAG,IAAI,WAAW,CAAC,GAAG,CAAC,IAAI,CAAC,CAAC;YAC9C,IAAI,CAAC,gBAAgB,GAAG,IAAI,eAAe,EAAE,CAAC;YAE9C,IAAI,CAAC,YAAY,CAAC,OAAO,GAAG,CAAC,KAAK,EAAE,EAAE;;gBACpC,MAAM,KAAK,GAAG,IAAI,KAAK,CAAC,cAAc,IAAI,CAAC,SAAS,CAAC,KAAK,CAAC,EAAE,CAAC,CAAC;gBAC/D,MAAM,CAAC,KAAK,CAAC,CAAC;gBACd,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAK,CAAC,CAAC;YACxB,CAAC,CAAC;YAEF,IAAI,CAAC,YAAY,CAAC,MAAM,GAAG,GAAG,EAAE;gBAC9B,+EAA+E;YACjF,CAAC,CAAC;YAEF,IAAI,CAAC,YAAY,CAAC,gBAAgB,CAAC,UAAU,EAAE,CAAC,KAAY,EAAE,EAAE;;gBAC9D,MAAM,YAAY,GAAG,KAAqB,CAAC;gBAE3C,IAAI,CAAC;oBACH,IAAI,CAAC,SAAS,GAAG,IAAI,GAAG,CAAC,YAAY,CAAC,IAAI,EAAE,GAAG,CAAC,CAAC;oBACjD,IAAI,IAAI,CAAC,SAAS,CAAC,MAAM,KAAK,GAAG,CAAC,MAAM,EAAE,CAAC;wBACzC,MAAM,IAAI,KAAK,CACb,qDAAqD,IAAI,CAAC,SAAS,CAAC,MAAM,EAAE,CAC7E,CAAC;oBACJ,CAAC;gBACH,CAAC;gBAAC,OAAO,KAAK,EAAE,CAAC;oBACf,MAAM,CAAC,KAAK,CAAC,CAAC;oBACd,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAc,CAAC,CAAC;oBAE/B,KAAK,IAAI,CAAC,KAAK,EAAE,CAAC;oBAClB,OAAO;gBACT,CAAC;gBAED,OAAO,EAAE,CAAC;YACZ,CAAC,CAAC,CAAC;YAEH,IAAI,CAAC,YAAY,CAAC,SAAS,GAAG,CAAC,KAAY,EAAE,EAAE;;gBAC7C,MAAM,YAAY,GAAG,KAAqB,CAAC;gBAC3C,IAAI,OAAuB,CAAC;gBAC5B,IAAI,CAAC;oBACH,OAAO,GAAG,oBAAoB,CAAC,KAAK,CAAC,IAAI,CAAC,KAAK,CAAC,YAAY,CAAC,IAAI,CAAC,CAAC,CAAC;gBACtE,CAAC;gBAAC,OAAO,KAAK,EAAE,CAAC;oBACf,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAc,CAAC,CAAC;oBAC/B,OAAO;gBACT,CAAC;gBAED,MAAA,IAAI,CAAC,SAAS,qDAAG,OAAO,CAAC,CAAC;YAC5B,CAAC,CAAC;QACJ,CAAC,CAAC,CAAC;IACL,CAAC;IAED,KAAK,CAAC,KAAK;;QACT,MAAA,IAAI,CAAC,gBAAgB,0CAAE,KAAK,EAAE,CAAC;QAC/B,MAAA,IAAI,CAAC,YAAY,0CAAE,KAAK,EAAE,CAAC;QAC3B,MAAA,IAAI,CAAC,OAAO,oDAAI,CAAC;IACnB,CAAC;IAED,KAAK,CAAC,IAAI,CAAC,OAAuB;;QAChC,IAAI,CAAC,IAAI,CAAC,SAAS,EAAE,CAAC;YACpB,MAAM,IAAI,KAAK,CAAC,eAAe,CAAC,CAAC;QACnC,CAAC;QAED,IAAI,CAAC;YACH,MAAM,QAAQ,GAAG,MAAM,KAAK,CAAC,IAAI,CAAC,SAAS,EAAE;gBAC3C,MAAM,EAAE,MAAM;gBACd,OAAO,EAAE;oBACP,cAAc,EAAE,kBAAkB;iBACnC;gBACD,IAAI,EAAE,IAAI,CAAC,SAAS,CAAC,OAAO,CAAC;gBAC7B,MAAM,EAAE,MAAA,IAAI,CAAC,gBAAgB,0CAAE,MAAM;aACtC,CAAC,CAAC;YAEH,IAAI,CAAC,QAAQ,CAAC,EAAE,EAAE,CAAC;gBACjB,MAAM,IAAI,GAAG,MAAM,QAAQ,CAAC,IAAI,EAAE,CAAC,KAAK,CAAC,GAAG,EAAE,CAAC,IAAI,CAAC,CAAC;gBACrD,MAAM,IAAI,KAAK,CACb,mCAAmC,QAAQ,CAAC,MAAM,MAAM,IAAI,EAAE,CAC/D,CAAC;YACJ,CAAC;QACH,CAAC;QAAC,OAAO,KAAK,EAAE,CAAC;YACf,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAc,CAAC,CAAC;YAC/B,MAAM,KAAK,CAAC;QACd,CAAC;IACH,CAAC;CACF"} {"version":3,"file":"sse.js","sourceRoot":"","sources":["../../src/client/sse.ts"],"names":[],"mappings":"AACA,OAAO,EAAkB,oBAAoB,EAAE,MAAM,aAAa,CAAC;AAEnE;;;;;GAKG;AACH,MAAM,OAAO,kBAAkB;IAU7B,YAAY,GAAQ;QAClB,IAAI,CAAC,IAAI,GAAG,GAAG,CAAC;IAClB,CAAC;IAED,KAAK;QACH,IAAI,IAAI,CAAC,YAAY,EAAE,CAAC;YACtB,MAAM,IAAI,KAAK,CACb,6GAA6G,CAC9G,CAAC;QACJ,CAAC;QAED,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;YACrC,IAAI,CAAC,YAAY,GAAG,IAAI,WAAW,CAAC,IAAI,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC;YACpD,IAAI,CAAC,gBAAgB,GAAG,IAAI,eAAe,EAAE,CAAC;YAE9C,IAAI,CAAC,YAAY,CAAC,OAAO,GAAG,CAAC,KAAK,EAAE,EAAE;;gBACpC,MAAM,KAAK,GAAG,IAAI,KAAK,CAAC,cAAc,IAAI,CAAC,SAAS,CAAC,KAAK,CAAC,EAAE,CAAC,CAAC;gBAC/D,MAAM,CAAC,KAAK,CAAC,CAAC;gBACd,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAK,CAAC,CAAC;YACxB,CAAC,CAAC;YAEF,IAAI,CAAC,YAAY,CAAC,MAAM,GAAG,GAAG,EAAE;gBAC9B,+EAA+E;YACjF,CAAC,CAAC;YAEF,IAAI,CAAC,YAAY,CAAC,gBAAgB,CAAC,UAAU,EAAE,CAAC,KAAY,EAAE,EAAE;;gBAC9D,MAAM,YAAY,GAAG,KAAqB,CAAC;gBAE3C,IAAI,CAAC;oBACH,IAAI,CAAC,SAAS,GAAG,IAAI,GAAG,CAAC,YAAY,CAAC,IAAI,EAAE,IAAI,CAAC,IAAI,CAAC,CAAC;oBACvD,IAAI,IAAI,CAAC,SAAS,CAAC,MAAM,KAAK,IAAI,CAAC,IAAI,CAAC,MAAM,EAAE,CAAC;wBAC/C,MAAM,IAAI,KAAK,CACb,qDAAqD,IAAI,CAAC,SAAS,CAAC,MAAM,EAAE,CAC7E,CAAC;oBACJ,CAAC;gBACH,CAAC;gBAAC,OAAO,KAAK,EAAE,CAAC;oBACf,MAAM,CAAC,KAAK,CAAC,CAAC;oBACd,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAc,CAAC,CAAC;oBAE/B,KAAK,IAAI,CAAC,KAAK,EAAE,CAAC;oBAClB,OAAO;gBACT,CAAC;gBAED,OAAO,EAAE,CAAC;YACZ,CAAC,CAAC,CAAC;YAEH,IAAI,CAAC,YAAY,CAAC,SAAS,GAAG,CAAC,KAAY,EAAE,EAAE;;gBAC7C,MAAM,YAAY,GAAG,KAAqB,CAAC;gBAC3C,IAAI,OAAuB,CAAC;gBAC5B,IAAI,CAAC;oBACH,OAAO,GAAG,oBAAoB,CAAC,KAAK,CAAC,IAAI,CAAC,KAAK,CAAC,YAAY,CAAC,IAAI,CAAC,CAAC,CAAC;gBACtE,CAAC;gBAAC,OAAO,KAAK,EAAE,CAAC;oBACf,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAc,CAAC,CAAC;oBAC/B,OAAO;gBACT,CAAC;gBAED,MAAA,IAAI,CAAC,SAAS,qDAAG,OAAO,CAAC,CAAC;YAC5B,CAAC,CAAC;QACJ,CAAC,CAAC,CAAC;IACL,CAAC;IAED,KAAK,CAAC,KAAK;;QACT,MAAA,IAAI,CAAC,gBAAgB,0CAAE,KAAK,EAAE,CAAC;QAC/B,MAAA,IAAI,CAAC,YAAY,0CAAE,KAAK,EAAE,CAAC;QAC3B,MAAA,IAAI,CAAC,OAAO,oDAAI,CAAC;IACnB,CAAC;IAED,KAAK,CAAC,IAAI,CAAC,OAAuB;;QAChC,IAAI,CAAC,IAAI,CAAC,SAAS,EAAE,CAAC;YACpB,MAAM,IAAI,KAAK,CAAC,eAAe,CAAC,CAAC;QACnC,CAAC;QAED,IAAI,CAAC;YACH,MAAM,QAAQ,GAAG,MAAM,KAAK,CAAC,IAAI,CAAC,SAAS,EAAE;gBAC3C,MAAM,EAAE,MAAM;gBACd,OAAO,EAAE;oBACP,cAAc,EAAE,kBAAkB;iBACnC;gBACD,IAAI,EAAE,IAAI,CAAC,SAAS,CAAC,OAAO,CAAC;gBAC7B,MAAM,EAAE,MAAA,IAAI,CAAC,gBAAgB,0CAAE,MAAM;aACtC,CAAC,CAAC;YAEH,IAAI,CAAC,QAAQ,CAAC,EAAE,EAAE,CAAC;gBACjB,MAAM,IAAI,GAAG,MAAM,QAAQ,CAAC,IAAI,EAAE,CAAC,KAAK,CAAC,GAAG,EAAE,CAAC,IAAI,CAAC,CAAC;gBACrD,MAAM,IAAI,KAAK,CACb,mCAAmC,QAAQ,CAAC,MAAM,MAAM,IAAI,EAAE,CAC/D,CAAC;YACJ,CAAC;QACH,CAAC;QAAC,OAAO,KAAK,EAAE,CAAC;YACf,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAc,CAAC,CAAC;YAC/B,MAAM,KAAK,CAAC;QACd,CAAC;IACH,CAAC;CACF"}

6
packages/mcp-typescript/dist/client/stdio.d.ts generated vendored
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@@ -25,13 +25,15 @@ export declare class StdioClientTransport implements Transport {
private _process?; private _process?;
private _abortController; private _abortController;
private _readBuffer; private _readBuffer;
private _serverParams;
onclose?: () => void; onclose?: () => void;
onerror?: (error: Error) => void; onerror?: (error: Error) => void;
onmessage?: (message: JSONRPCMessage) => void; onmessage?: (message: JSONRPCMessage) => void;
constructor(server: StdioServerParameters);
/** /**
* Spawns the server process and prepare to communicate with it. * Starts the server process and prepares to communicate with it.
*/ */
spawn(server: StdioServerParameters): Promise<void>; start(): Promise<void>;
private processReadBuffer; private processReadBuffer;
close(): Promise<void>; close(): Promise<void>;
send(message: JSONRPCMessage): Promise<void>; send(message: JSONRPCMessage): Promise<void>;

2
packages/mcp-typescript/dist/client/stdio.d.ts.map generated vendored
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@@ -1 +1 @@
{"version":3,"file":"stdio.d.ts","sourceRoot":"","sources":["../../src/client/stdio.ts"],"names":[],"mappings":"AAEA,OAAO,EAAE,cAAc,EAAE,MAAM,aAAa,CAAC;AAC7C,OAAO,EAAE,SAAS,EAAE,MAAM,wBAAwB,CAAC;AAEnD,MAAM,MAAM,qBAAqB,GAAG;IAClC;;OAEG;IACH,OAAO,EAAE,MAAM,CAAC;IAEhB;;OAEG;IACH,IAAI,CAAC,EAAE,MAAM,EAAE,CAAC;IAEhB;;;;OAIG;IACH,GAAG,CAAC,EAAE,MAAM,CAAC;CACd,CAAC;AAEF;;;;GAIG;AACH,qBAAa,oBAAqB,YAAW,SAAS;IACpD,OAAO,CAAC,QAAQ,CAAC,CAAe;IAChC,OAAO,CAAC,gBAAgB,CAA0C;IAClE,OAAO,CAAC,WAAW,CAAgC;IAEnD,OAAO,CAAC,EAAE,MAAM,IAAI,CAAC;IACrB,OAAO,CAAC,EAAE,CAAC,KAAK,EAAE,KAAK,KAAK,IAAI,CAAC;IACjC,SAAS,CAAC,EAAE,CAAC,OAAO,EAAE,cAAc,KAAK,IAAI,CAAC;IAE9C;;OAEG;IACH,KAAK,CAAC,MAAM,EAAE,qBAAqB,GAAG,OAAO,CAAC,IAAI,CAAC;IA4CnD,OAAO,CAAC,iBAAiB;IAenB,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;IAM5B,IAAI,CAAC,OAAO,EAAE,cAAc,GAAG,OAAO,CAAC,IAAI,CAAC;CAc7C"} {"version":3,"file":"stdio.d.ts","sourceRoot":"","sources":["../../src/client/stdio.ts"],"names":[],"mappings":"AAEA,OAAO,EAAE,cAAc,EAAE,MAAM,aAAa,CAAC;AAC7C,OAAO,EAAE,SAAS,EAAE,MAAM,wBAAwB,CAAC;AAEnD,MAAM,MAAM,qBAAqB,GAAG;IAClC;;OAEG;IACH,OAAO,EAAE,MAAM,CAAC;IAEhB;;OAEG;IACH,IAAI,CAAC,EAAE,MAAM,EAAE,CAAC;IAEhB;;;;OAIG;IACH,GAAG,CAAC,EAAE,MAAM,CAAC;CACd,CAAC;AAEF;;;;GAIG;AACH,qBAAa,oBAAqB,YAAW,SAAS;IACpD,OAAO,CAAC,QAAQ,CAAC,CAAe;IAChC,OAAO,CAAC,gBAAgB,CAA0C;IAClE,OAAO,CAAC,WAAW,CAAgC;IACnD,OAAO,CAAC,aAAa,CAAwB;IAE7C,OAAO,CAAC,EAAE,MAAM,IAAI,CAAC;IACrB,OAAO,CAAC,EAAE,CAAC,KAAK,EAAE,KAAK,KAAK,IAAI,CAAC;IACjC,SAAS,CAAC,EAAE,CAAC,OAAO,EAAE,cAAc,KAAK,IAAI,CAAC;gBAElC,MAAM,EAAE,qBAAqB;IAIzC;;OAEG;IACG,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;IAyD5B,OAAO,CAAC,iBAAiB;IAenB,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;IAM5B,IAAI,CAAC,OAAO,EAAE,cAAc,GAAG,OAAO,CAAC,IAAI,CAAC;CAc7C"}

16
packages/mcp-typescript/dist/client/stdio.js generated vendored
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@@ -6,19 +6,25 @@ import { ReadBuffer, serializeMessage } from "../shared/stdio.js";
* This transport is only available in Node.js environments. * This transport is only available in Node.js environments.
*/ */
export class StdioClientTransport { export class StdioClientTransport {
constructor() { constructor(server) {
this._abortController = new AbortController(); this._abortController = new AbortController();
this._readBuffer = new ReadBuffer(); this._readBuffer = new ReadBuffer();
this._serverParams = server;
} }
/** /**
* Spawns the server process and prepare to communicate with it. * Starts the server process and prepares to communicate with it.
*/ */
spawn(server) { async start() {
if (this._process) {
throw new Error("StdioClientTransport already started! If using Client class, note that connect() calls start() automatically.");
}
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
var _a, _b, _c, _d; var _a, _b, _c, _d;
this._process = spawn(server.command, (_a = server.args) !== null && _a !== void 0 ? _a : [], { this._process = spawn(this._serverParams.command, (_a = this._serverParams.args) !== null && _a !== void 0 ? _a : [], {
// The parent process may have sensitive secrets in its env, so don't inherit it automatically. // The parent process may have sensitive secrets in its env, so don't inherit it automatically.
env: server.env === undefined ? {} : { ...server.env }, env: this._serverParams.env === undefined
? {}
: { ...this._serverParams.env },
stdio: ["pipe", "pipe", "inherit"], stdio: ["pipe", "pipe", "inherit"],
signal: this._abortController.signal, signal: this._abortController.signal,
}); });

2
packages/mcp-typescript/dist/client/stdio.js.map generated vendored
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@@ -1 +1 @@
{"version":3,"file":"stdio.js","sourceRoot":"","sources":["../../src/client/stdio.ts"],"names":[],"mappings":"AAAA,OAAO,EAAgB,KAAK,EAAE,MAAM,oBAAoB,CAAC;AACzD,OAAO,EAAE,UAAU,EAAE,gBAAgB,EAAE,MAAM,oBAAoB,CAAC;AAuBlE;;;;GAIG;AACH,MAAM,OAAO,oBAAoB;IAAjC;QAEU,qBAAgB,GAAoB,IAAI,eAAe,EAAE,CAAC;QAC1D,gBAAW,GAAe,IAAI,UAAU,EAAE,CAAC;IAwFrD,CAAC;IAlFC;;OAEG;IACH,KAAK,CAAC,MAA6B;QACjC,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;;YACrC,IAAI,CAAC,QAAQ,GAAG,KAAK,CAAC,MAAM,CAAC,OAAO,EAAE,MAAA,MAAM,CAAC,IAAI,mCAAI,EAAE,EAAE;gBACvD,+FAA+F;gBAC/F,GAAG,EAAE,MAAM,CAAC,GAAG,KAAK,SAAS,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC,EAAE,GAAG,MAAM,CAAC,GAAG,EAAE;gBACtD,KAAK,EAAE,CAAC,MAAM,EAAE,MAAM,EAAE,SAAS,CAAC;gBAClC,MAAM,EAAE,IAAI,CAAC,gBAAgB,CAAC,MAAM;aACrC,CAAC,CAAC;YAEH,IAAI,CAAC,QAAQ,CAAC,EAAE,CAAC,OAAO,EAAE,CAAC,KAAK,EAAE,EAAE;;gBAClC,IAAI,KAAK,CAAC,IAAI,KAAK,YAAY,EAAE,CAAC;oBAChC,mCAAmC;oBACnC,MAAA,IAAI,CAAC,OAAO,oDAAI,CAAC;oBACjB,OAAO;gBACT,CAAC;gBAED,MAAM,CAAC,KAAK,CAAC,CAAC;gBACd,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAK,CAAC,CAAC;YACxB,CAAC,CAAC,CAAC;YAEH,IAAI,CAAC,QAAQ,CAAC,EAAE,CAAC,OAAO,EAAE,GAAG,EAAE;gBAC7B,OAAO,EAAE,CAAC;YACZ,CAAC,CAAC,CAAC;YAEH,IAAI,CAAC,QAAQ,CAAC,EAAE,CAAC,OAAO,EAAE,CAAC,KAAK,EAAE,EAAE;;gBAClC,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;gBAC1B,MAAA,IAAI,CAAC,OAAO,oDAAI,CAAC;YACnB,CAAC,CAAC,CAAC;YAEH,MAAA,IAAI,CAAC,QAAQ,CAAC,KAAK,0CAAE,EAAE,CAAC,OAAO,EAAE,CAAC,KAAK,EAAE,EAAE;;gBACzC,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAK,CAAC,CAAC;YACxB,CAAC,CAAC,CAAC;YAEH,MAAA,IAAI,CAAC,QAAQ,CAAC,MAAM,0CAAE,EAAE,CAAC,MAAM,EAAE,CAAC,KAAK,EAAE,EAAE;gBACzC,IAAI,CAAC,WAAW,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC;gBAC/B,IAAI,CAAC,iBAAiB,EAAE,CAAC;YAC3B,CAAC,CAAC,CAAC;YAEH,MAAA,IAAI,CAAC,QAAQ,CAAC,MAAM,0CAAE,EAAE,CAAC,OAAO,EAAE,CAAC,KAAK,EAAE,EAAE;;gBAC1C,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAK,CAAC,CAAC;YACxB,CAAC,CAAC,CAAC;QACL,CAAC,CAAC,CAAC;IACL,CAAC;IAEO,iBAAiB;;QACvB,OAAO,IAAI,EAAE,CAAC;YACZ,IAAI,CAAC;gBACH,MAAM,OAAO,GAAG,IAAI,CAAC,WAAW,CAAC,WAAW,EAAE,CAAC;gBAC/C,IAAI,OAAO,KAAK,IAAI,EAAE,CAAC;oBACrB,MAAM;gBACR,CAAC;gBAED,MAAA,IAAI,CAAC,SAAS,qDAAG,OAAO,CAAC,CAAC;YAC5B,CAAC;YAAC,OAAO,KAAK,EAAE,CAAC;gBACf,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAc,CAAC,CAAC;YACjC,CAAC;QACH,CAAC;IACH,CAAC;IAED,KAAK,CAAC,KAAK;QACT,IAAI,CAAC,gBAAgB,CAAC,KAAK,EAAE,CAAC;QAC9B,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;QAC1B,IAAI,CAAC,WAAW,CAAC,KAAK,EAAE,CAAC;IAC3B,CAAC;IAED,IAAI,CAAC,OAAuB;QAC1B,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,EAAE;;YAC7B,IAAI,CAAC,CAAA,MAAA,IAAI,CAAC,QAAQ,0CAAE,KAAK,CAAA,EAAE,CAAC;gBAC1B,MAAM,IAAI,KAAK,CAAC,eAAe,CAAC,CAAC;YACnC,CAAC;YAED,MAAM,IAAI,GAAG,gBAAgB,CAAC,OAAO,CAAC,CAAC;YACvC,IAAI,IAAI,CAAC,QAAQ,CAAC,KAAK,CAAC,KAAK,CAAC,IAAI,CAAC,EAAE,CAAC;gBACpC,OAAO,EAAE,CAAC;YACZ,CAAC;iBAAM,CAAC;gBACN,IAAI,CAAC,QAAQ,CAAC,KAAK,CAAC,IAAI,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;YAC7C,CAAC;QACH,CAAC,CAAC,CAAC;IACL,CAAC;CACF"} {"version":3,"file":"stdio.js","sourceRoot":"","sources":["../../src/client/stdio.ts"],"names":[],"mappings":"AAAA,OAAO,EAAgB,KAAK,EAAE,MAAM,oBAAoB,CAAC;AACzD,OAAO,EAAE,UAAU,EAAE,gBAAgB,EAAE,MAAM,oBAAoB,CAAC;AAuBlE;;;;GAIG;AACH,MAAM,OAAO,oBAAoB;IAU/B,YAAY,MAA6B;QARjC,qBAAgB,GAAoB,IAAI,eAAe,EAAE,CAAC;QAC1D,gBAAW,GAAe,IAAI,UAAU,EAAE,CAAC;QAQjD,IAAI,CAAC,aAAa,GAAG,MAAM,CAAC;IAC9B,CAAC;IAED;;OAEG;IACH,KAAK,CAAC,KAAK;QACT,IAAI,IAAI,CAAC,QAAQ,EAAE,CAAC;YAClB,MAAM,IAAI,KAAK,CACb,+GAA+G,CAChH,CAAC;QACJ,CAAC;QAED,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;;YACrC,IAAI,CAAC,QAAQ,GAAG,KAAK,CACnB,IAAI,CAAC,aAAa,CAAC,OAAO,EAC1B,MAAA,IAAI,CAAC,aAAa,CAAC,IAAI,mCAAI,EAAE,EAC7B;gBACE,+FAA+F;gBAC/F,GAAG,EACD,IAAI,CAAC,aAAa,CAAC,GAAG,KAAK,SAAS;oBAClC,CAAC,CAAC,EAAE;oBACJ,CAAC,CAAC,EAAE,GAAG,IAAI,CAAC,aAAa,CAAC,GAAG,EAAE;gBACnC,KAAK,EAAE,CAAC,MAAM,EAAE,MAAM,EAAE,SAAS,CAAC;gBAClC,MAAM,EAAE,IAAI,CAAC,gBAAgB,CAAC,MAAM;aACrC,CACF,CAAC;YAEF,IAAI,CAAC,QAAQ,CAAC,EAAE,CAAC,OAAO,EAAE,CAAC,KAAK,EAAE,EAAE;;gBAClC,IAAI,KAAK,CAAC,IAAI,KAAK,YAAY,EAAE,CAAC;oBAChC,mCAAmC;oBACnC,MAAA,IAAI,CAAC,OAAO,oDAAI,CAAC;oBACjB,OAAO;gBACT,CAAC;gBAED,MAAM,CAAC,KAAK,CAAC,CAAC;gBACd,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAK,CAAC,CAAC;YACxB,CAAC,CAAC,CAAC;YAEH,IAAI,CAAC,QAAQ,CAAC,EAAE,CAAC,OAAO,EAAE,GAAG,EAAE;gBAC7B,OAAO,EAAE,CAAC;YACZ,CAAC,CAAC,CAAC;YAEH,IAAI,CAAC,QAAQ,CAAC,EAAE,CAAC,OAAO,EAAE,CAAC,KAAK,EAAE,EAAE;;gBAClC,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;gBAC1B,MAAA,IAAI,CAAC,OAAO,oDAAI,CAAC;YACnB,CAAC,CAAC,CAAC;YAEH,MAAA,IAAI,CAAC,QAAQ,CAAC,KAAK,0CAAE,EAAE,CAAC,OAAO,EAAE,CAAC,KAAK,EAAE,EAAE;;gBACzC,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAK,CAAC,CAAC;YACxB,CAAC,CAAC,CAAC;YAEH,MAAA,IAAI,CAAC,QAAQ,CAAC,MAAM,0CAAE,EAAE,CAAC,MAAM,EAAE,CAAC,KAAK,EAAE,EAAE;gBACzC,IAAI,CAAC,WAAW,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC;gBAC/B,IAAI,CAAC,iBAAiB,EAAE,CAAC;YAC3B,CAAC,CAAC,CAAC;YAEH,MAAA,IAAI,CAAC,QAAQ,CAAC,MAAM,0CAAE,EAAE,CAAC,OAAO,EAAE,CAAC,KAAK,EAAE,EAAE;;gBAC1C,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAK,CAAC,CAAC;YACxB,CAAC,CAAC,CAAC;QACL,CAAC,CAAC,CAAC;IACL,CAAC;IAEO,iBAAiB;;QACvB,OAAO,IAAI,EAAE,CAAC;YACZ,IAAI,CAAC;gBACH,MAAM,OAAO,GAAG,IAAI,CAAC,WAAW,CAAC,WAAW,EAAE,CAAC;gBAC/C,IAAI,OAAO,KAAK,IAAI,EAAE,CAAC;oBACrB,MAAM;gBACR,CAAC;gBAED,MAAA,IAAI,CAAC,SAAS,qDAAG,OAAO,CAAC,CAAC;YAC5B,CAAC;YAAC,OAAO,KAAK,EAAE,CAAC;gBACf,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAc,CAAC,CAAC;YACjC,CAAC;QACH,CAAC;IACH,CAAC;IAED,KAAK,CAAC,KAAK;QACT,IAAI,CAAC,gBAAgB,CAAC,KAAK,EAAE,CAAC;QAC9B,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;QAC1B,IAAI,CAAC,WAAW,CAAC,KAAK,EAAE,CAAC;IAC3B,CAAC;IAED,IAAI,CAAC,OAAuB;QAC1B,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,EAAE;;YAC7B,IAAI,CAAC,CAAA,MAAA,IAAI,CAAC,QAAQ,0CAAE,KAAK,CAAA,EAAE,CAAC;gBAC1B,MAAM,IAAI,KAAK,CAAC,eAAe,CAAC,CAAC;YACnC,CAAC;YAED,MAAM,IAAI,GAAG,gBAAgB,CAAC,OAAO,CAAC,CAAC;YACvC,IAAI,IAAI,CAAC,QAAQ,CAAC,KAAK,CAAC,KAAK,CAAC,IAAI,CAAC,EAAE,CAAC;gBACpC,OAAO,EAAE,CAAC;YACZ,CAAC;iBAAM,CAAC;gBACN,IAAI,CAAC,QAAQ,CAAC,KAAK,CAAC,IAAI,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;YAC7C,CAAC;QACH,CAAC,CAAC,CAAC;IACL,CAAC;CACF"}

8
packages/mcp-typescript/dist/client/stdio.test.js generated vendored
View File

@@ -3,7 +3,7 @@ const serverParameters = {
command: "/usr/bin/tee", command: "/usr/bin/tee",
}; };
test("should start then close cleanly", async () => { test("should start then close cleanly", async () => {
const client = new StdioClientTransport(); const client = new StdioClientTransport(serverParameters);
client.onerror = (error) => { client.onerror = (error) => {
throw error; throw error;
}; };
@@ -11,13 +11,13 @@ test("should start then close cleanly", async () => {
client.onclose = () => { client.onclose = () => {
didClose = true; didClose = true;
}; };
await client.spawn(serverParameters); await client.start();
expect(didClose).toBeFalsy(); expect(didClose).toBeFalsy();
await client.close(); await client.close();
expect(didClose).toBeTruthy(); expect(didClose).toBeTruthy();
}); });
test("should read messages", async () => { test("should read messages", async () => {
const client = new StdioClientTransport(); const client = new StdioClientTransport(serverParameters);
client.onerror = (error) => { client.onerror = (error) => {
throw error; throw error;
}; };
@@ -41,7 +41,7 @@ test("should read messages", async () => {
} }
}; };
}); });
await client.spawn(serverParameters); await client.start();
await client.send(messages[0]); await client.send(messages[0]);
await client.send(messages[1]); await client.send(messages[1]);
await finished; await finished;

2
packages/mcp-typescript/dist/client/stdio.test.js.map generated vendored
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@@ -1 +1 @@
{"version":3,"file":"stdio.test.js","sourceRoot":"","sources":["../../src/client/stdio.test.ts"],"names":[],"mappings":"AACA,OAAO,EAAE,oBAAoB,EAAyB,MAAM,YAAY,CAAC;AAEzE,MAAM,gBAAgB,GAA0B;IAC9C,OAAO,EAAE,cAAc;CACxB,CAAC;AAEF,IAAI,CAAC,iCAAiC,EAAE,KAAK,IAAI,EAAE;IACjD,MAAM,MAAM,GAAG,IAAI,oBAAoB,EAAE,CAAC;IAC1C,MAAM,CAAC,OAAO,GAAG,CAAC,KAAK,EAAE,EAAE;QACzB,MAAM,KAAK,CAAC;IACd,CAAC,CAAC;IAEF,IAAI,QAAQ,GAAG,KAAK,CAAC;IACrB,MAAM,CAAC,OAAO,GAAG,GAAG,EAAE;QACpB,QAAQ,GAAG,IAAI,CAAC;IAClB,CAAC,CAAC;IAEF,MAAM,MAAM,CAAC,KAAK,CAAC,gBAAgB,CAAC,CAAC;IACrC,MAAM,CAAC,QAAQ,CAAC,CAAC,SAAS,EAAE,CAAC;IAC7B,MAAM,MAAM,CAAC,KAAK,EAAE,CAAC;IACrB,MAAM,CAAC,QAAQ,CAAC,CAAC,UAAU,EAAE,CAAC;AAChC,CAAC,CAAC,CAAC;AAEH,IAAI,CAAC,sBAAsB,EAAE,KAAK,IAAI,EAAE;IACtC,MAAM,MAAM,GAAG,IAAI,oBAAoB,EAAE,CAAC;IAC1C,MAAM,CAAC,OAAO,GAAG,CAAC,KAAK,EAAE,EAAE;QACzB,MAAM,KAAK,CAAC;IACd,CAAC,CAAC;IAEF,MAAM,QAAQ,GAAqB;QACjC;YACE,OAAO,EAAE,KAAK;YACd,EAAE,EAAE,CAAC;YACL,MAAM,EAAE,MAAM;SACf;QACD;YACE,OAAO,EAAE,KAAK;YACd,MAAM,EAAE,2BAA2B;SACpC;KACF,CAAC;IAEF,MAAM,YAAY,GAAqB,EAAE,CAAC;IAC1C,MAAM,QAAQ,GAAG,IAAI,OAAO,CAAO,CAAC,OAAO,EAAE,EAAE;QAC7C,MAAM,CAAC,SAAS,GAAG,CAAC,OAAO,EAAE,EAAE;YAC7B,YAAY,CAAC,IAAI,CAAC,OAAO,CAAC,CAAC;YAE3B,IAAI,IAAI,CAAC,SAAS,CAAC,OAAO,CAAC,KAAK,IAAI,CAAC,SAAS,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,EAAE,CAAC;gBAC5D,OAAO,EAAE,CAAC;YACZ,CAAC;QACH,CAAC,CAAC;IACJ,CAAC,CAAC,CAAC;IAEH,MAAM,MAAM,CAAC,KAAK,CAAC,gBAAgB,CAAC,CAAC;IACrC,MAAM,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,CAAC;IAC/B,MAAM,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,CAAC;IAC/B,MAAM,QAAQ,CAAC;IACf,MAAM,CAAC,YAAY,CAAC,CAAC,OAAO,CAAC,QAAQ,CAAC,CAAC;IAEvC,MAAM,MAAM,CAAC,KAAK,EAAE,CAAC;AACvB,CAAC,CAAC,CAAC"} {"version":3,"file":"stdio.test.js","sourceRoot":"","sources":["../../src/client/stdio.test.ts"],"names":[],"mappings":"AACA,OAAO,EAAE,oBAAoB,EAAyB,MAAM,YAAY,CAAC;AAEzE,MAAM,gBAAgB,GAA0B;IAC9C,OAAO,EAAE,cAAc;CACxB,CAAC;AAEF,IAAI,CAAC,iCAAiC,EAAE,KAAK,IAAI,EAAE;IACjD,MAAM,MAAM,GAAG,IAAI,oBAAoB,CAAC,gBAAgB,CAAC,CAAC;IAC1D,MAAM,CAAC,OAAO,GAAG,CAAC,KAAK,EAAE,EAAE;QACzB,MAAM,KAAK,CAAC;IACd,CAAC,CAAC;IAEF,IAAI,QAAQ,GAAG,KAAK,CAAC;IACrB,MAAM,CAAC,OAAO,GAAG,GAAG,EAAE;QACpB,QAAQ,GAAG,IAAI,CAAC;IAClB,CAAC,CAAC;IAEF,MAAM,MAAM,CAAC,KAAK,EAAE,CAAC;IACrB,MAAM,CAAC,QAAQ,CAAC,CAAC,SAAS,EAAE,CAAC;IAC7B,MAAM,MAAM,CAAC,KAAK,EAAE,CAAC;IACrB,MAAM,CAAC,QAAQ,CAAC,CAAC,UAAU,EAAE,CAAC;AAChC,CAAC,CAAC,CAAC;AAEH,IAAI,CAAC,sBAAsB,EAAE,KAAK,IAAI,EAAE;IACtC,MAAM,MAAM,GAAG,IAAI,oBAAoB,CAAC,gBAAgB,CAAC,CAAC;IAC1D,MAAM,CAAC,OAAO,GAAG,CAAC,KAAK,EAAE,EAAE;QACzB,MAAM,KAAK,CAAC;IACd,CAAC,CAAC;IAEF,MAAM,QAAQ,GAAqB;QACjC;YACE,OAAO,EAAE,KAAK;YACd,EAAE,EAAE,CAAC;YACL,MAAM,EAAE,MAAM;SACf;QACD;YACE,OAAO,EAAE,KAAK;YACd,MAAM,EAAE,2BAA2B;SACpC;KACF,CAAC;IAEF,MAAM,YAAY,GAAqB,EAAE,CAAC;IAC1C,MAAM,QAAQ,GAAG,IAAI,OAAO,CAAO,CAAC,OAAO,EAAE,EAAE;QAC7C,MAAM,CAAC,SAAS,GAAG,CAAC,OAAO,EAAE,EAAE;YAC7B,YAAY,CAAC,IAAI,CAAC,OAAO,CAAC,CAAC;YAE3B,IAAI,IAAI,CAAC,SAAS,CAAC,OAAO,CAAC,KAAK,IAAI,CAAC,SAAS,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,EAAE,CAAC;gBAC5D,OAAO,EAAE,CAAC;YACZ,CAAC;QACH,CAAC,CAAC;IACJ,CAAC,CAAC,CAAC;IAEH,MAAM,MAAM,CAAC,KAAK,EAAE,CAAC;IACrB,MAAM,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,CAAC;IAC/B,MAAM,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,CAAC;IAC/B,MAAM,QAAQ,CAAC;IACf,MAAM,CAAC,YAAY,CAAC,CAAC,OAAO,CAAC,QAAQ,CAAC,CAAC;IAEvC,MAAM,MAAM,CAAC,KAAK,EAAE,CAAC;AACvB,CAAC,CAAC,CAAC"}

4
packages/mcp-typescript/dist/client/websocket.d.ts generated vendored
View File

@@ -5,10 +5,12 @@ import { JSONRPCMessage } from "../types.js";
*/ */
export declare class WebSocketClientTransport implements Transport { export declare class WebSocketClientTransport implements Transport {
private _socket?; private _socket?;
private _url;
onclose?: () => void; onclose?: () => void;
onerror?: (error: Error) => void; onerror?: (error: Error) => void;
onmessage?: (message: JSONRPCMessage) => void; onmessage?: (message: JSONRPCMessage) => void;
connect(url: URL): Promise<void>; constructor(url: URL);
start(): Promise<void>;
close(): Promise<void>; close(): Promise<void>;
send(message: JSONRPCMessage): Promise<void>; send(message: JSONRPCMessage): Promise<void>;
} }

2
packages/mcp-typescript/dist/client/websocket.d.ts.map generated vendored
View File

@@ -1 +1 @@
{"version":3,"file":"websocket.d.ts","sourceRoot":"","sources":["../../src/client/websocket.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,SAAS,EAAE,MAAM,wBAAwB,CAAC;AACnD,OAAO,EAAE,cAAc,EAAwB,MAAM,aAAa,CAAC;AAInE;;GAEG;AACH,qBAAa,wBAAyB,YAAW,SAAS;IACxD,OAAO,CAAC,OAAO,CAAC,CAAY;IAE5B,OAAO,CAAC,EAAE,MAAM,IAAI,CAAC;IACrB,OAAO,CAAC,EAAE,CAAC,KAAK,EAAE,KAAK,KAAK,IAAI,CAAC;IACjC,SAAS,CAAC,EAAE,CAAC,OAAO,EAAE,cAAc,KAAK,IAAI,CAAC;IAE9C,OAAO,CAAC,GAAG,EAAE,GAAG,GAAG,OAAO,CAAC,IAAI,CAAC;IAmC1B,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;IAI5B,IAAI,CAAC,OAAO,EAAE,cAAc,GAAG,OAAO,CAAC,IAAI,CAAC;CAW7C"} {"version":3,"file":"websocket.d.ts","sourceRoot":"","sources":["../../src/client/websocket.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,SAAS,EAAE,MAAM,wBAAwB,CAAC;AACnD,OAAO,EAAE,cAAc,EAAwB,MAAM,aAAa,CAAC;AAInE;;GAEG;AACH,qBAAa,wBAAyB,YAAW,SAAS;IACxD,OAAO,CAAC,OAAO,CAAC,CAAY;IAC5B,OAAO,CAAC,IAAI,CAAM;IAElB,OAAO,CAAC,EAAE,MAAM,IAAI,CAAC;IACrB,OAAO,CAAC,EAAE,CAAC,KAAK,EAAE,KAAK,KAAK,IAAI,CAAC;IACjC,SAAS,CAAC,EAAE,CAAC,OAAO,EAAE,cAAc,KAAK,IAAI,CAAC;gBAElC,GAAG,EAAE,GAAG;IAIpB,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;IAyChB,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;IAI5B,IAAI,CAAC,OAAO,EAAE,cAAc,GAAG,OAAO,CAAC,IAAI,CAAC;CAW7C"}

10
packages/mcp-typescript/dist/client/websocket.js generated vendored
View File

@@ -4,9 +4,15 @@ const SUBPROTOCOL = "mcp";
* Client transport for WebSocket: this will connect to a server over the WebSocket protocol. * Client transport for WebSocket: this will connect to a server over the WebSocket protocol.
*/ */
export class WebSocketClientTransport { export class WebSocketClientTransport {
connect(url) { constructor(url) {
this._url = url;
}
start() {
if (this._socket) {
throw new Error("WebSocketClientTransport already started! If using Client class, note that connect() calls start() automatically.");
}
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
this._socket = new WebSocket(url, SUBPROTOCOL); this._socket = new WebSocket(this._url, SUBPROTOCOL);
this._socket.onerror = (event) => { this._socket.onerror = (event) => {
var _a; var _a;
const error = "error" in event const error = "error" in event

2
packages/mcp-typescript/dist/client/websocket.js.map generated vendored
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@@ -1 +1 @@
{"version":3,"file":"websocket.js","sourceRoot":"","sources":["../../src/client/websocket.ts"],"names":[],"mappings":"AACA,OAAO,EAAkB,oBAAoB,EAAE,MAAM,aAAa,CAAC;AAEnE,MAAM,WAAW,GAAG,KAAK,CAAC;AAE1B;;GAEG;AACH,MAAM,OAAO,wBAAwB;IAOnC,OAAO,CAAC,GAAQ;QACd,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;YACrC,IAAI,CAAC,OAAO,GAAG,IAAI,SAAS,CAAC,GAAG,EAAE,WAAW,CAAC,CAAC;YAE/C,IAAI,CAAC,OAAO,CAAC,OAAO,GAAG,CAAC,KAAK,EAAE,EAAE;;gBAC/B,MAAM,KAAK,GACT,OAAO,IAAI,KAAK;oBACd,CAAC,CAAE,KAAK,CAAC,KAAe;oBACxB,CAAC,CAAC,IAAI,KAAK,CAAC,oBAAoB,IAAI,CAAC,SAAS,CAAC,KAAK,CAAC,EAAE,CAAC,CAAC;gBAC7D,MAAM,CAAC,KAAK,CAAC,CAAC;gBACd,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAK,CAAC,CAAC;YACxB,CAAC,CAAC;YAEF,IAAI,CAAC,OAAO,CAAC,MAAM,GAAG,GAAG,EAAE;gBACzB,OAAO,EAAE,CAAC;YACZ,CAAC,CAAC;YAEF,IAAI,CAAC,OAAO,CAAC,OAAO,GAAG,GAAG,EAAE;;gBAC1B,MAAA,IAAI,CAAC,OAAO,oDAAI,CAAC;YACnB,CAAC,CAAC;YAEF,IAAI,CAAC,OAAO,CAAC,SAAS,GAAG,CAAC,KAAmB,EAAE,EAAE;;gBAC/C,IAAI,OAAuB,CAAC;gBAC5B,IAAI,CAAC;oBACH,OAAO,GAAG,oBAAoB,CAAC,KAAK,CAAC,IAAI,CAAC,KAAK,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC,CAAC;gBAC/D,CAAC;gBAAC,OAAO,KAAK,EAAE,CAAC;oBACf,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAc,CAAC,CAAC;oBAC/B,OAAO;gBACT,CAAC;gBAED,MAAA,IAAI,CAAC,SAAS,qDAAG,OAAO,CAAC,CAAC;YAC5B,CAAC,CAAC;QACJ,CAAC,CAAC,CAAC;IACL,CAAC;IAED,KAAK,CAAC,KAAK;;QACT,MAAA,IAAI,CAAC,OAAO,0CAAE,KAAK,EAAE,CAAC;IACxB,CAAC;IAED,IAAI,CAAC,OAAuB;QAC1B,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;;YACrC,IAAI,CAAC,IAAI,CAAC,OAAO,EAAE,CAAC;gBAClB,MAAM,CAAC,IAAI,KAAK,CAAC,eAAe,CAAC,CAAC,CAAC;gBACnC,OAAO;YACT,CAAC;YAED,MAAA,IAAI,CAAC,OAAO,0CAAE,IAAI,CAAC,IAAI,CAAC,SAAS,CAAC,OAAO,CAAC,CAAC,CAAC;YAC5C,OAAO,EAAE,CAAC;QACZ,CAAC,CAAC,CAAC;IACL,CAAC;CACF"} {"version":3,"file":"websocket.js","sourceRoot":"","sources":["../../src/client/websocket.ts"],"names":[],"mappings":"AACA,OAAO,EAAkB,oBAAoB,EAAE,MAAM,aAAa,CAAC;AAEnE,MAAM,WAAW,GAAG,KAAK,CAAC;AAE1B;;GAEG;AACH,MAAM,OAAO,wBAAwB;IAQnC,YAAY,GAAQ;QAClB,IAAI,CAAC,IAAI,GAAG,GAAG,CAAC;IAClB,CAAC;IAED,KAAK;QACH,IAAI,IAAI,CAAC,OAAO,EAAE,CAAC;YACjB,MAAM,IAAI,KAAK,CACb,mHAAmH,CACpH,CAAC;QACJ,CAAC;QAED,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;YACrC,IAAI,CAAC,OAAO,GAAG,IAAI,SAAS,CAAC,IAAI,CAAC,IAAI,EAAE,WAAW,CAAC,CAAC;YAErD,IAAI,CAAC,OAAO,CAAC,OAAO,GAAG,CAAC,KAAK,EAAE,EAAE;;gBAC/B,MAAM,KAAK,GACT,OAAO,IAAI,KAAK;oBACd,CAAC,CAAE,KAAK,CAAC,KAAe;oBACxB,CAAC,CAAC,IAAI,KAAK,CAAC,oBAAoB,IAAI,CAAC,SAAS,CAAC,KAAK,CAAC,EAAE,CAAC,CAAC;gBAC7D,MAAM,CAAC,KAAK,CAAC,CAAC;gBACd,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAK,CAAC,CAAC;YACxB,CAAC,CAAC;YAEF,IAAI,CAAC,OAAO,CAAC,MAAM,GAAG,GAAG,EAAE;gBACzB,OAAO,EAAE,CAAC;YACZ,CAAC,CAAC;YAEF,IAAI,CAAC,OAAO,CAAC,OAAO,GAAG,GAAG,EAAE;;gBAC1B,MAAA,IAAI,CAAC,OAAO,oDAAI,CAAC;YACnB,CAAC,CAAC;YAEF,IAAI,CAAC,OAAO,CAAC,SAAS,GAAG,CAAC,KAAmB,EAAE,EAAE;;gBAC/C,IAAI,OAAuB,CAAC;gBAC5B,IAAI,CAAC;oBACH,OAAO,GAAG,oBAAoB,CAAC,KAAK,CAAC,IAAI,CAAC,KAAK,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC,CAAC;gBAC/D,CAAC;gBAAC,OAAO,KAAK,EAAE,CAAC;oBACf,MAAA,IAAI,CAAC,OAAO,qDAAG,KAAc,CAAC,CAAC;oBAC/B,OAAO;gBACT,CAAC;gBAED,MAAA,IAAI,CAAC,SAAS,qDAAG,OAAO,CAAC,CAAC;YAC5B,CAAC,CAAC;QACJ,CAAC,CAAC,CAAC;IACL,CAAC;IAED,KAAK,CAAC,KAAK;;QACT,MAAA,IAAI,CAAC,OAAO,0CAAE,KAAK,EAAE,CAAC;IACxB,CAAC;IAED,IAAI,CAAC,OAAuB;QAC1B,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;;YACrC,IAAI,CAAC,IAAI,CAAC,OAAO,EAAE,CAAC;gBAClB,MAAM,CAAC,IAAI,KAAK,CAAC,eAAe,CAAC,CAAC,CAAC;gBACnC,OAAO;YACT,CAAC;YAED,MAAA,IAAI,CAAC,OAAO,0CAAE,IAAI,CAAC,IAAI,CAAC,SAAS,CAAC,OAAO,CAAC,CAAC,CAAC;YAC5C,OAAO,EAAE,CAAC;QACZ,CAAC,CAAC,CAAC;IACL,CAAC;CACF"}

2
packages/mcp-typescript/dist/server/index.d.ts generated vendored
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@@ -26,5 +26,7 @@ export declare class Server extends Protocol<ServerRequest, ServerNotification,
* After initialization has completed, this will be populated with information about the client's name and version. * After initialization has completed, this will be populated with information about the client's name and version.
*/ */
getClientVersion(): Implementation | undefined; getClientVersion(): Implementation | undefined;
private getCapability;
private getCapabilities;
} }
//# sourceMappingURL=index.d.ts.map //# sourceMappingURL=index.d.ts.map

2
packages/mcp-typescript/dist/server/index.d.ts.map generated vendored
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@@ -1 +1 @@
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15
packages/mcp-typescript/dist/server/index.js generated vendored
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@@ -1,5 +1,5 @@
import { Protocol } from "../shared/protocol.js"; import { Protocol } from "../shared/protocol.js";
import { InitializedNotificationSchema, InitializeRequestSchema, PROTOCOL_VERSION, } from "../types.js"; import { InitializedNotificationSchema, InitializeRequestSchema, PROTOCOL_VERSION, ListResourcesRequestSchema, ListToolsRequestSchema, ListPromptsRequestSchema, SetLevelRequestSchema, } from "../types.js";
/** /**
* An MCP server on top of a pluggable transport. * An MCP server on top of a pluggable transport.
* *
@@ -23,7 +23,7 @@ export class Server extends Protocol {
this._clientVersion = request.params.clientInfo; this._clientVersion = request.params.clientInfo;
return { return {
protocolVersion: PROTOCOL_VERSION, protocolVersion: PROTOCOL_VERSION,
capabilities: {}, capabilities: this.getCapabilities(),
serverInfo: this._serverInfo, serverInfo: this._serverInfo,
}; };
} }
@@ -39,5 +39,16 @@ export class Server extends Protocol {
getClientVersion() { getClientVersion() {
return this._clientVersion; return this._clientVersion;
} }
getCapability(reqType) {
return this._requestHandlers.has(reqType) ? {} : undefined;
}
getCapabilities() {
return {
prompts: this.getCapability(ListPromptsRequestSchema.shape.method.value),
resources: this.getCapability(ListResourcesRequestSchema.shape.method.value),
tools: this.getCapability(ListToolsRequestSchema.shape.method.value),
logging: this.getCapability(SetLevelRequestSchema.shape.method.value),
};
}
} }
//# sourceMappingURL=index.js.map //# sourceMappingURL=index.js.map

2
packages/mcp-typescript/dist/server/index.js.map generated vendored
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@@ -1 +1 @@
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5
packages/mcp-typescript/dist/server/sse.d.ts generated vendored
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@@ -8,6 +8,7 @@ import { JSONRPCMessage } from "../types.js";
*/ */
export declare class SSEServerTransport implements Transport { export declare class SSEServerTransport implements Transport {
private _endpoint; private _endpoint;
private res;
private _sseResponse?; private _sseResponse?;
private _sessionId; private _sessionId;
onclose?: () => void; onclose?: () => void;
@@ -16,13 +17,13 @@ export declare class SSEServerTransport implements Transport {
/** /**
* Creates a new SSE server transport, which will direct the client to POST messages to the relative or absolute URL identified by `_endpoint`. * Creates a new SSE server transport, which will direct the client to POST messages to the relative or absolute URL identified by `_endpoint`.
*/ */
constructor(_endpoint: string); constructor(_endpoint: string, res: ServerResponse);
/** /**
* Handles the initial SSE connection request. * Handles the initial SSE connection request.
* *
* This should be called when a GET request is made to establish the SSE stream. * This should be called when a GET request is made to establish the SSE stream.
*/ */
connectSSE(req: IncomingMessage, res: ServerResponse): Promise<void>; start(): Promise<void>;
/** /**
* Handles incoming POST messages. * Handles incoming POST messages.
* *

2
packages/mcp-typescript/dist/server/sse.d.ts.map generated vendored
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@@ -1 +1 @@
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15
packages/mcp-typescript/dist/server/sse.js generated vendored
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@@ -12,8 +12,9 @@ export class SSEServerTransport {
/** /**
* Creates a new SSE server transport, which will direct the client to POST messages to the relative or absolute URL identified by `_endpoint`. * Creates a new SSE server transport, which will direct the client to POST messages to the relative or absolute URL identified by `_endpoint`.
*/ */
constructor(_endpoint) { constructor(_endpoint, res) {
this._endpoint = _endpoint; this._endpoint = _endpoint;
this.res = res;
this._sessionId = randomUUID(); this._sessionId = randomUUID();
} }
/** /**
@@ -21,19 +22,19 @@ export class SSEServerTransport {
* *
* This should be called when a GET request is made to establish the SSE stream. * This should be called when a GET request is made to establish the SSE stream.
*/ */
async connectSSE(req, res) { async start() {
if (this._sseResponse) { if (this._sseResponse) {
throw new Error("Already connected!"); throw new Error("SSEServerTransport already started! If using Server class, note that connect() calls start() automatically.");
} }
res.writeHead(200, { this.res.writeHead(200, {
"Content-Type": "text/event-stream", "Content-Type": "text/event-stream",
"Cache-Control": "no-cache", "Cache-Control": "no-cache",
Connection: "keep-alive", Connection: "keep-alive",
}); });
// Send the endpoint event // Send the endpoint event
res.write(`event: endpoint\ndata: ${encodeURI(this._endpoint)}?sessionId=${this._sessionId}\n\n`); this.res.write(`event: endpoint\ndata: ${encodeURI(this._endpoint)}?sessionId=${this._sessionId}\n\n`);
this._sseResponse = res; this._sseResponse = this.res;
res.on("close", () => { this.res.on("close", () => {
var _a; var _a;
this._sseResponse = undefined; this._sseResponse = undefined;
(_a = this.onclose) === null || _a === void 0 ? void 0 : _a.call(this); (_a = this.onclose) === null || _a === void 0 ? void 0 : _a.call(this);

2
packages/mcp-typescript/dist/server/sse.js.map generated vendored
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@@ -1 +1 @@
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1
packages/mcp-typescript/dist/server/stdio.d.ts generated vendored
View File

@@ -10,6 +10,7 @@ export declare class StdioServerTransport implements Transport {
private _stdin; private _stdin;
private _stdout; private _stdout;
private _readBuffer; private _readBuffer;
private _started;
constructor(_stdin?: Readable, _stdout?: Writable); constructor(_stdin?: Readable, _stdout?: Writable);
onclose?: () => void; onclose?: () => void;
onerror?: (error: Error) => void; onerror?: (error: Error) => void;

2
packages/mcp-typescript/dist/server/stdio.d.ts.map generated vendored
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@@ -1 +1 @@
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5
packages/mcp-typescript/dist/server/stdio.js generated vendored
View File

@@ -10,6 +10,7 @@ export class StdioServerTransport {
this._stdin = _stdin; this._stdin = _stdin;
this._stdout = _stdout; this._stdout = _stdout;
this._readBuffer = new ReadBuffer(); this._readBuffer = new ReadBuffer();
this._started = false;
// Arrow functions to bind `this` properly, while maintaining function identity. // Arrow functions to bind `this` properly, while maintaining function identity.
this._ondata = (chunk) => { this._ondata = (chunk) => {
this._readBuffer.append(chunk); this._readBuffer.append(chunk);
@@ -24,6 +25,10 @@ export class StdioServerTransport {
* Starts listening for messages on stdin. * Starts listening for messages on stdin.
*/ */
async start() { async start() {
if (this._started) {
throw new Error("StdioServerTransport already started! If using Server class, note that connect() calls start() automatically.");
}
this._started = true;
this._stdin.on("data", this._ondata); this._stdin.on("data", this._ondata);
this._stdin.on("error", this._onerror); this._stdin.on("error", this._onerror);
} }

2
packages/mcp-typescript/dist/server/stdio.js.map generated vendored
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@@ -1 +1 @@
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6
packages/mcp-typescript/dist/shared/protocol.d.ts generated vendored
View File

@@ -1,5 +1,5 @@
import { AnyZodObject, ZodLiteral, ZodObject, z } from "zod"; import { AnyZodObject, ZodLiteral, ZodObject, z } from "zod";
import { Notification, Progress, Request, Result } from "../types.js"; import { JSONRPCRequest, Notification, Progress, Request, Result } from "../types.js";
import { Transport } from "./transport.js"; import { Transport } from "./transport.js";
/** /**
* Callback for progress notifications. * Callback for progress notifications.
@@ -12,7 +12,7 @@ export type ProgressCallback = (progress: Progress) => void;
export declare class Protocol<SendRequestT extends Request, SendNotificationT extends Notification, SendResultT extends Result> { export declare class Protocol<SendRequestT extends Request, SendNotificationT extends Notification, SendResultT extends Result> {
private _transport?; private _transport?;
private _requestMessageId; private _requestMessageId;
private _requestHandlers; protected _requestHandlers: Map<string, (request: JSONRPCRequest) => Promise<SendResultT>>;
private _notificationHandlers; private _notificationHandlers;
private _responseHandlers; private _responseHandlers;
private _progressHandlers; private _progressHandlers;
@@ -38,7 +38,7 @@ export declare class Protocol<SendRequestT extends Request, SendNotificationT ex
fallbackNotificationHandler?: (notification: Notification) => Promise<void>; fallbackNotificationHandler?: (notification: Notification) => Promise<void>;
constructor(); constructor();
/** /**
* Attaches to the given transport and starts listening for messages. * Attaches to the given transport, starts it, and starts listening for messages.
* *
* The Protocol object assumes ownership of the Transport, replacing any callbacks that have already been set, and expects that it is the only user of the Transport instance going forward. * The Protocol object assumes ownership of the Transport, replacing any callbacks that have already been set, and expects that it is the only user of the Transport instance going forward.
*/ */

2
packages/mcp-typescript/dist/shared/protocol.d.ts.map generated vendored
View File

@@ -1 +1 @@
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3
packages/mcp-typescript/dist/shared/protocol.js generated vendored
View File

@@ -18,7 +18,7 @@ export class Protocol {
(_request) => ({})); (_request) => ({}));
} }
/** /**
* Attaches to the given transport and starts listening for messages. * Attaches to the given transport, starts it, and starts listening for messages.
* *
* The Protocol object assumes ownership of the Transport, replacing any callbacks that have already been set, and expects that it is the only user of the Transport instance going forward. * The Protocol object assumes ownership of the Transport, replacing any callbacks that have already been set, and expects that it is the only user of the Transport instance going forward.
*/ */
@@ -41,6 +41,7 @@ export class Protocol {
this._onnotification(message); this._onnotification(message);
} }
}; };
await this._transport.start();
} }
_onclose() { _onclose() {
var _a; var _a;

2
packages/mcp-typescript/dist/shared/protocol.js.map generated vendored
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File diff suppressed because one or more lines are too long

8
packages/mcp-typescript/dist/shared/transport.d.ts generated vendored
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@@ -3,6 +3,14 @@ import { JSONRPCMessage } from "../types.js";
* Describes the minimal contract for a MCP transport that a client or server can communicate over. * Describes the minimal contract for a MCP transport that a client or server can communicate over.
*/ */
export interface Transport { export interface Transport {
/**
* Starts processing messages on the transport, including any connection steps that might need to be taken.
*
* This method should only be called after callbacks are installed, or else messages may be lost.
*
* NOTE: This method should not be called explicitly when using Client, Server, or Protocol classes, as they will implicitly call start().
*/
start(): Promise<void>;
/** /**
* Sends a JSON-RPC message (request or response). * Sends a JSON-RPC message (request or response).
*/ */

2
packages/mcp-typescript/dist/shared/transport.d.ts.map generated vendored
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@@ -1 +1 @@
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13
packages/mcp-typescript/src/cli.ts generated
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@@ -31,14 +31,11 @@ async function runClient(url_or_command: string, args: string[]) {
} }
if (url?.protocol === "http:" || url?.protocol === "https:") { if (url?.protocol === "http:" || url?.protocol === "https:") {
clientTransport = new SSEClientTransport(); clientTransport = new SSEClientTransport(new URL(url_or_command));
await clientTransport.connect(new URL(url_or_command));
} else if (url?.protocol === "ws:" || url?.protocol === "wss:") { } else if (url?.protocol === "ws:" || url?.protocol === "wss:") {
clientTransport = new WebSocketClientTransport(); clientTransport = new WebSocketClientTransport(new URL(url_or_command));
await clientTransport.connect(new URL(url_or_command));
} else { } else {
clientTransport = new StdioClientTransport(); clientTransport = new StdioClientTransport({
await clientTransport.spawn({
command: url_or_command, command: url_or_command,
args, args,
}); });
@@ -62,7 +59,7 @@ async function runServer(port: number | null) {
app.get("/sse", async (req, res) => { app.get("/sse", async (req, res) => {
console.log("Got new SSE connection"); console.log("Got new SSE connection");
const transport = new SSEServerTransport("/message"); const transport = new SSEServerTransport("/message", res);
const server = new Server({ const server = new Server({
name: "mcp-typescript test server", name: "mcp-typescript test server",
version: "0.1.0", version: "0.1.0",
@@ -75,7 +72,6 @@ async function runServer(port: number | null) {
servers = servers.filter((s) => s !== server); servers = servers.filter((s) => s !== server);
}; };
await transport.connectSSE(req, res);
await server.connect(transport); await server.connect(transport);
}); });
@@ -104,7 +100,6 @@ async function runServer(port: number | null) {
}); });
const transport = new StdioServerTransport(); const transport = new StdioServerTransport();
await transport.start();
await server.connect(transport); await server.connect(transport);
console.log("Server running on stdio"); console.log("Server running on stdio");

19
packages/mcp-typescript/src/client/sse.ts generated
View File

@@ -11,14 +11,25 @@ export class SSEClientTransport implements Transport {
private _eventSource?: EventSource; private _eventSource?: EventSource;
private _endpoint?: URL; private _endpoint?: URL;
private _abortController?: AbortController; private _abortController?: AbortController;
private _url: URL;
onclose?: () => void; onclose?: () => void;
onerror?: (error: Error) => void; onerror?: (error: Error) => void;
onmessage?: (message: JSONRPCMessage) => void; onmessage?: (message: JSONRPCMessage) => void;
connect(url: URL): Promise<void> { constructor(url: URL) {
this._url = url;
}
start(): Promise<void> {
if (this._eventSource) {
throw new Error(
"SSEClientTransport already started! If using Client class, note that connect() calls start() automatically.",
);
}
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
this._eventSource = new EventSource(url.href); this._eventSource = new EventSource(this._url.href);
this._abortController = new AbortController(); this._abortController = new AbortController();
this._eventSource.onerror = (event) => { this._eventSource.onerror = (event) => {
@@ -35,8 +46,8 @@ export class SSEClientTransport implements Transport {
const messageEvent = event as MessageEvent; const messageEvent = event as MessageEvent;
try { try {
this._endpoint = new URL(messageEvent.data, url); this._endpoint = new URL(messageEvent.data, this._url);
if (this._endpoint.origin !== url.origin) { if (this._endpoint.origin !== this._url.origin) {
throw new Error( throw new Error(
`Endpoint origin does not match connection origin: ${this._endpoint.origin}`, `Endpoint origin does not match connection origin: ${this._endpoint.origin}`,
); );

8
packages/mcp-typescript/src/client/stdio.test.ts generated
View File

@@ -6,7 +6,7 @@ const serverParameters: StdioServerParameters = {
}; };
test("should start then close cleanly", async () => { test("should start then close cleanly", async () => {
const client = new StdioClientTransport(); const client = new StdioClientTransport(serverParameters);
client.onerror = (error) => { client.onerror = (error) => {
throw error; throw error;
}; };
@@ -16,14 +16,14 @@ test("should start then close cleanly", async () => {
didClose = true; didClose = true;
}; };
await client.spawn(serverParameters); await client.start();
expect(didClose).toBeFalsy(); expect(didClose).toBeFalsy();
await client.close(); await client.close();
expect(didClose).toBeTruthy(); expect(didClose).toBeTruthy();
}); });
test("should read messages", async () => { test("should read messages", async () => {
const client = new StdioClientTransport(); const client = new StdioClientTransport(serverParameters);
client.onerror = (error) => { client.onerror = (error) => {
throw error; throw error;
}; };
@@ -51,7 +51,7 @@ test("should read messages", async () => {
}; };
}); });
await client.spawn(serverParameters); await client.start();
await client.send(messages[0]); await client.send(messages[0]);
await client.send(messages[1]); await client.send(messages[1]);
await finished; await finished;

34
packages/mcp-typescript/src/client/stdio.ts generated
View File

@@ -31,22 +31,40 @@ export class StdioClientTransport implements Transport {
private _process?: ChildProcess; private _process?: ChildProcess;
private _abortController: AbortController = new AbortController(); private _abortController: AbortController = new AbortController();
private _readBuffer: ReadBuffer = new ReadBuffer(); private _readBuffer: ReadBuffer = new ReadBuffer();
private _serverParams: StdioServerParameters;
onclose?: () => void; onclose?: () => void;
onerror?: (error: Error) => void; onerror?: (error: Error) => void;
onmessage?: (message: JSONRPCMessage) => void; onmessage?: (message: JSONRPCMessage) => void;
constructor(server: StdioServerParameters) {
this._serverParams = server;
}
/** /**
* Spawns the server process and prepare to communicate with it. * Starts the server process and prepares to communicate with it.
*/ */
spawn(server: StdioServerParameters): Promise<void> { async start(): Promise<void> {
if (this._process) {
throw new Error(
"StdioClientTransport already started! If using Client class, note that connect() calls start() automatically.",
);
}
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
this._process = spawn(server.command, server.args ?? [], { this._process = spawn(
// The parent process may have sensitive secrets in its env, so don't inherit it automatically. this._serverParams.command,
env: server.env === undefined ? {} : { ...server.env }, this._serverParams.args ?? [],
stdio: ["pipe", "pipe", "inherit"], {
signal: this._abortController.signal, // The parent process may have sensitive secrets in its env, so don't inherit it automatically.
}); env:
this._serverParams.env === undefined
? {}
: { ...this._serverParams.env },
stdio: ["pipe", "pipe", "inherit"],
signal: this._abortController.signal,
},
);
this._process.on("error", (error) => { this._process.on("error", (error) => {
if (error.name === "AbortError") { if (error.name === "AbortError") {

15
packages/mcp-typescript/src/client/websocket.ts generated
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@@ -8,14 +8,25 @@ const SUBPROTOCOL = "mcp";
*/ */
export class WebSocketClientTransport implements Transport { export class WebSocketClientTransport implements Transport {
private _socket?: WebSocket; private _socket?: WebSocket;
private _url: URL;
onclose?: () => void; onclose?: () => void;
onerror?: (error: Error) => void; onerror?: (error: Error) => void;
onmessage?: (message: JSONRPCMessage) => void; onmessage?: (message: JSONRPCMessage) => void;
connect(url: URL): Promise<void> { constructor(url: URL) {
this._url = url;
}
start(): Promise<void> {
if (this._socket) {
throw new Error(
"WebSocketClientTransport already started! If using Client class, note that connect() calls start() automatically.",
);
}
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
this._socket = new WebSocket(url, SUBPROTOCOL); this._socket = new WebSocket(this._url, SUBPROTOCOL);
this._socket.onerror = (event) => { this._socket.onerror = (event) => {
const error = const error =

25
packages/mcp-typescript/src/server/index.ts generated
View File

@@ -1,6 +1,7 @@
import { Protocol } from "../shared/protocol.js"; import { Protocol } from "../shared/protocol.js";
import { import {
ClientCapabilities, ClientCapabilities,
ClientRequest,
Implementation, Implementation,
InitializedNotificationSchema, InitializedNotificationSchema,
InitializeRequest, InitializeRequest,
@@ -10,6 +11,11 @@ import {
ServerNotification, ServerNotification,
ServerRequest, ServerRequest,
ServerResult, ServerResult,
ServerCapabilities,
ListResourcesRequestSchema,
ListToolsRequestSchema,
ListPromptsRequestSchema,
SetLevelRequestSchema,
} from "../types.js"; } from "../types.js";
/** /**
@@ -58,7 +64,7 @@ export class Server extends Protocol<
return { return {
protocolVersion: PROTOCOL_VERSION, protocolVersion: PROTOCOL_VERSION,
capabilities: {}, capabilities: this.getCapabilities(),
serverInfo: this._serverInfo, serverInfo: this._serverInfo,
}; };
} }
@@ -76,4 +82,21 @@ export class Server extends Protocol<
getClientVersion(): Implementation | undefined { getClientVersion(): Implementation | undefined {
return this._clientVersion; return this._clientVersion;
} }
private getCapability(
reqType: ClientRequest["method"],
): ServerCapabilities[keyof ServerCapabilities] {
return this._requestHandlers.has(reqType as string) ? {} : undefined;
}
private getCapabilities(): ServerCapabilities {
return {
prompts: this.getCapability(ListPromptsRequestSchema.shape.method.value),
resources: this.getCapability(
ListResourcesRequestSchema.shape.method.value,
),
tools: this.getCapability(ListToolsRequestSchema.shape.method.value),
logging: this.getCapability(SetLevelRequestSchema.shape.method.value),
};
}
} }

19
packages/mcp-typescript/src/server/sse.ts generated
View File

@@ -23,7 +23,10 @@ export class SSEServerTransport implements Transport {
/** /**
* Creates a new SSE server transport, which will direct the client to POST messages to the relative or absolute URL identified by `_endpoint`. * Creates a new SSE server transport, which will direct the client to POST messages to the relative or absolute URL identified by `_endpoint`.
*/ */
constructor(private _endpoint: string) { constructor(
private _endpoint: string,
private res: ServerResponse,
) {
this._sessionId = randomUUID(); this._sessionId = randomUUID();
} }
@@ -32,24 +35,26 @@ export class SSEServerTransport implements Transport {
* *
* This should be called when a GET request is made to establish the SSE stream. * This should be called when a GET request is made to establish the SSE stream.
*/ */
async connectSSE(req: IncomingMessage, res: ServerResponse): Promise<void> { async start(): Promise<void> {
if (this._sseResponse) { if (this._sseResponse) {
throw new Error("Already connected!"); throw new Error(
"SSEServerTransport already started! If using Server class, note that connect() calls start() automatically.",
);
} }
res.writeHead(200, { this.res.writeHead(200, {
"Content-Type": "text/event-stream", "Content-Type": "text/event-stream",
"Cache-Control": "no-cache", "Cache-Control": "no-cache",
Connection: "keep-alive", Connection: "keep-alive",
}); });
// Send the endpoint event // Send the endpoint event
res.write( this.res.write(
`event: endpoint\ndata: ${encodeURI(this._endpoint)}?sessionId=${this._sessionId}\n\n`, `event: endpoint\ndata: ${encodeURI(this._endpoint)}?sessionId=${this._sessionId}\n\n`,
); );
this._sseResponse = res; this._sseResponse = this.res;
res.on("close", () => { this.res.on("close", () => {
this._sseResponse = undefined; this._sseResponse = undefined;
this.onclose?.(); this.onclose?.();
}); });

8
packages/mcp-typescript/src/server/stdio.ts generated
View File

@@ -11,6 +11,7 @@ import { Transport } from "../shared/transport.js";
*/ */
export class StdioServerTransport implements Transport { export class StdioServerTransport implements Transport {
private _readBuffer: ReadBuffer = new ReadBuffer(); private _readBuffer: ReadBuffer = new ReadBuffer();
private _started = false;
constructor( constructor(
private _stdin: Readable = process.stdin, private _stdin: Readable = process.stdin,
@@ -34,6 +35,13 @@ export class StdioServerTransport implements Transport {
* Starts listening for messages on stdin. * Starts listening for messages on stdin.
*/ */
async start(): Promise<void> { async start(): Promise<void> {
if (this._started) {
throw new Error(
"StdioServerTransport already started! If using Server class, note that connect() calls start() automatically.",
);
}
this._started = true;
this._stdin.on("data", this._ondata); this._stdin.on("data", this._ondata);
this._stdin.on("error", this._onerror); this._stdin.on("error", this._onerror);
} }

6
packages/mcp-typescript/src/shared/protocol.ts generated
View File

@@ -32,7 +32,7 @@ export class Protocol<
> { > {
private _transport?: Transport; private _transport?: Transport;
private _requestMessageId = 0; private _requestMessageId = 0;
private _requestHandlers: Map< protected _requestHandlers: Map<
string, string,
(request: JSONRPCRequest) => Promise<SendResultT> (request: JSONRPCRequest) => Promise<SendResultT>
> = new Map(); > = new Map();
@@ -83,7 +83,7 @@ export class Protocol<
} }
/** /**
* Attaches to the given transport and starts listening for messages. * Attaches to the given transport, starts it, and starts listening for messages.
* *
* The Protocol object assumes ownership of the Transport, replacing any callbacks that have already been set, and expects that it is the only user of the Transport instance going forward. * The Protocol object assumes ownership of the Transport, replacing any callbacks that have already been set, and expects that it is the only user of the Transport instance going forward.
*/ */
@@ -106,6 +106,8 @@ export class Protocol<
this._onnotification(message); this._onnotification(message);
} }
}; };
await this._transport.start();
} }
private _onclose(): void { private _onclose(): void {

9
packages/mcp-typescript/src/shared/transport.ts generated
View File

@@ -4,6 +4,15 @@ import { JSONRPCMessage } from "../types.js";
* Describes the minimal contract for a MCP transport that a client or server can communicate over. * Describes the minimal contract for a MCP transport that a client or server can communicate over.
*/ */
export interface Transport { export interface Transport {
/**
* Starts processing messages on the transport, including any connection steps that might need to be taken.
*
* This method should only be called after callbacks are installed, or else messages may be lost.
*
* NOTE: This method should not be called explicitly when using Client, Server, or Protocol classes, as they will implicitly call start().
*/
start(): Promise<void>;
/** /**
* Sends a JSON-RPC message (request or response). * Sends a JSON-RPC message (request or response).
*/ */