@dexwox-labs/a2a-server
Version:
TypeScript server implementation for Google's Agent-to-Agent (A2A) protocol - includes Express/WebSocket handlers, request validation and queue management
49 lines • 2.72 kB
JavaScript
;
var __await = (this && this.__await) || function (v) { return this instanceof __await ? (this.v = v, this) : new __await(v); }
var __asyncGenerator = (this && this.__asyncGenerator) || function (thisArg, _arguments, generator) {
if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
var g = generator.apply(thisArg, _arguments || []), i, q = [];
return i = Object.create((typeof AsyncIterator === "function" ? AsyncIterator : Object).prototype), verb("next"), verb("throw"), verb("return", awaitReturn), i[Symbol.asyncIterator] = function () { return this; }, i;
function awaitReturn(f) { return function (v) { return Promise.resolve(v).then(f, reject); }; }
function verb(n, f) { if (g[n]) { i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; if (f) i[n] = f(i[n]); } }
function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }
function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }
function fulfill(value) { resume("next", value); }
function reject(value) { resume("throw", value); }
function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.TaskResubscriptionHandler = void 0;
const request_handler_1 = require("../request-handler");
class TaskResubscriptionHandler {
constructor(taskManager) {
this.taskManager = taskManager;
this.requestHandler = new request_handler_1.DefaultRequestHandler();
}
/**
* Handle task resubscription request
* @param context Request context
* @param queue Event queue for streaming updates
*/
handleResubscription(context, queue) {
return __asyncGenerator(this, arguments, function* handleResubscription_1() {
const task = yield __await(this.taskManager.getTask(context.task.id));
if (!task) {
throw this.requestHandler.normalizeError({ code: -32004, message: 'Task not found' });
}
// First yield existing task parts
for (const part of task.parts || []) {
yield yield __await(part);
}
// Use the queue's built-in dequeue method
while (task.status === 'working') {
const event = yield __await(queue.dequeue());
if (event) {
yield yield __await(event);
}
}
});
}
}
exports.TaskResubscriptionHandler = TaskResubscriptionHandler;
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