arvo-xstate
Version:
This package allows you to use xstate Actors and State Machines to act as orchestrators in an Arvo Event Driven System
121 lines (120 loc) • 6.21 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g = Object.create((typeof Iterator === "function" ? Iterator : Object).prototype);
return g.next = verb(0), g["throw"] = verb(1), g["return"] = verb(2), typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var __rest = (this && this.__rest) || function (s, e) {
var t = {};
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
t[p] = s[p];
if (s != null && typeof Object.getOwnPropertySymbols === "function")
for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
t[p[i]] = s[p[i]];
}
return t;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.createSimpleEventBroker = void 0;
var _1 = require(".");
/**
* Creates a local event broker configured with domain event handlers.
*
* The broker automatically wires each handler to its source topic and propagates
* resulting events. Includes default error handling with console logging.
*
* @param eventHandlers - Array of event handlers to register with the broker
* @param options - Configuration options
* @param options.onError - Custom error handler for broker errors
* @param options.onDomainedEvents - Callback for handling domain-specific events
* @returns Configured SimpleEventBroker instance with handlers subscribed
*
* @example
* ```typescript
* const broker = createSimpleEventBroker([
* createArvoOrchestrator(...),
* createArvoEventHandler(...)
* ]);
*
* await broker.publish(createArvoEvent({
* type: 'com.openai.completion',
* data: {...}
* }));
* ```
*/
var createSimpleEventBroker = function (eventHandlers, options) {
var _a;
var broker = new _1.SimpleEventBroker({
maxQueueSize: 1000,
errorHandler: (_a = options === null || options === void 0 ? void 0 : options.onError) !== null && _a !== void 0 ? _a : (function (error, event) {
console.error('Broker error:', {
message: error.message,
eventType: event.to,
event: event,
});
}),
});
// Wire up each handler to its source topic
// biome-ignore lint/complexity/noForEach: TODO - fix later
eventHandlers.forEach(function (handler) {
broker.subscribe(handler.source, function (event) { return __awaiter(void 0, void 0, void 0, function () {
var response, _a, all, rest;
var _b;
return __generator(this, function (_c) {
switch (_c.label) {
case 0: return [4 /*yield*/, handler.execute(event, {
inheritFrom: 'EVENT',
})];
case 1:
response = _c.sent();
// Emit the domained events
if (response.domainedEvents && typeof response.domainedEvents === 'object') {
_a = response.domainedEvents, all = _a.all, rest = __rest(_a, ["all"]);
(_b = options === null || options === void 0 ? void 0 : options.onDomainedEvents) === null || _b === void 0 ? void 0 : _b.call(options, {
events: rest,
broker: broker,
});
}
// Propagate any resulting events
// biome-ignore lint/complexity/noForEach: TODO - fix later
response.events.forEach(function (e) { return broker.publish(e); });
return [2 /*return*/];
}
});
}); }, true);
});
return broker;
};
exports.createSimpleEventBroker = createSimpleEventBroker;