boostr/dist/processes/start-backend.js

Build and deploy your Layr apps

import { ComponentServer } from '@layr/component-server';
import { ComponentHTTPServer } from '@layr/component-http-server';
import { ExecutionQueue } from '@layr/execution-queue';
import mri from 'mri';
import { createRequire } from 'module';
import 'source-map-support/register.js';
import { findBackgroundMethods } from '../component.js';
const require = createRequire(import.meta.url);
async function main() {
    const { componentGetterFile, port: portString } = mri(process.argv.slice(2));
    const componentGetter = require(componentGetterFile).default;
    const rootComponent = (await componentGetter());
    const componentServer = new ComponentServer(rootComponent);
    // === Handle method scheduling ===
    for (const { scheduling, query } of findBackgroundMethods(rootComponent)) {
        if (!scheduling) {
            continue;
        }
        setInterval(() => {
            componentServer.receive({ query }, { executionMode: 'background' });
        }, scheduling.rate);
    }
    // === Handle method queueing ===
    const executionQueue = new ExecutionQueue(async (query) => {
        componentServer.receive({ query }, { executionMode: 'background' });
    });
    executionQueue.registerRootComponent(rootComponent);
    // === Handle HTTP server ===
    const httpServer = new ComponentHTTPServer(componentServer, { port: Number(portString) });
    await httpServer.start();
    console.log(`Component HTTP server started at http://localhost:${portString}/`);
    process.send('started');
}
main().catch((error) => {
    console.error(error);
    process.exit(1);
});
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