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feat: allow custom WebSocket port to support multiple instances #1

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feat: allow custom WebSocket port to support multiple instances #1

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10 changes: 7 additions & 3 deletions src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -41,12 +41,13 @@ const snapshotTools: Tool[] = [

const resources: Resource[] = [];

async function createServer(): Promise<Server> {
async function createServer(port?: number): Promise<Server> {
return createServerWithTools({
name: appConfig.name,
version: packageJSON.version,
tools: snapshotTools,
resources,
port,
});
}

Expand All @@ -56,8 +57,11 @@ async function createServer(): Promise<Server> {
program
.version("Version " + packageJSON.version)
.name(packageJSON.name)
.action(async () => {
const server = await createServer();
.option("-p, --port <number>", "Port for WebSocket server")
.action(async (options) => {
const portOption = options.port || process.env.PORT;
const port = portOption ? parseInt(portOption, 10) : undefined;
const server = await createServer(port);
setupExitWatchdog(server);

const transport = new StdioServerTransport();
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5 changes: 3 additions & 2 deletions src/server.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -16,10 +16,11 @@ type Options = {
version: string;
tools: Tool[];
resources: Resource[];
port?: number;
};

export async function createServerWithTools(options: Options): Promise<Server> {
const { name, version, tools, resources } = options;
const { name, version, tools, resources, port } = options;
const context = new Context();
const server = new Server(
{ name, version },
Expand All @@ -31,7 +32,7 @@ export async function createServerWithTools(options: Options): Promise<Server> {
},
);

const wss = await createWebSocketServer();
const wss = await createWebSocketServer(port);
wss.on("connection", (websocket) => {
// Close any existing connections
if (context.hasWs()) {
Expand Down