egg/dist/lib/start.js

A web application framework for Node.js

import { Agent } from "./agent.js";
import { Application } from "./application.js";
import "./types.js";
import { ManifestStore } from "@eggjs/core";
import path from "node:path";
import { importModule } from "@eggjs/utils";
import { readJSON } from "utility";
//#region src/lib/start.ts
async function resolveFrameworkClasses(options) {
	if (!options.framework) try {
		options.framework = (await readJSON(path.join(options.baseDir, "package.json"))).egg.framework;
	} catch {}
	let AgentClass = Agent;
	let ApplicationClass = Application;
	if (options.framework) {
		const framework = await importModule(options.framework, { paths: [options.baseDir] });
		AgentClass = framework.Agent;
		ApplicationClass = framework.Application;
	}
	return {
		AgentClass,
		ApplicationClass
	};
}
/**
* Start egg with single process.
*
* When `options.snapshot` is true, loads application metadata for V8 startup
* snapshot construction. The lifecycle stops after `configWillLoad` (no servers,
* timers, or connections) and skips `egg-ready` broadcast.
*/
async function startEgg(options = {}) {
	options.baseDir = options.baseDir ?? process.cwd();
	options.mode = "single";
	if (!options.snapshot) ManifestStore.enableCompileCache(options.baseDir);
	const { AgentClass, ApplicationClass } = await resolveFrameworkClasses(options);
	let agent;
	if (!options.metadataOnly) {
		agent = new AgentClass({ ...options });
		await agent.ready();
	}
	const application = new ApplicationClass({ ...options });
	if (agent) {
		application.agent = agent;
		agent.application = application;
	}
	await application.ready();
	if (!options.metadataOnly && !options.snapshot) application.messenger.broadcast("egg-ready");
	return application;
}
//#endregion
export { startEgg };