70 lines
2.3 KiB
JavaScript
70 lines
2.3 KiB
JavaScript
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const express = require('express');
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const config = require('../../config/default');
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const logger = require('./utils/logger');
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const migrate = require('./storage/migrate');
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const { createHttpJsonConnector } = require('./connectors/httpJsonConnector');
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const { createHl7TcpConnector } = require('./connectors/hl7TcpConnector');
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const { createAstmSerialConnector } = require('./connectors/astmSerialConnector');
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const { processMessage } = require('./pipeline/workflow');
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const { startWorker, stopWorker } = require('./pipeline/deliveryWorker');
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const instrumentService = require('./instrumentConfig/service');
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const { createHealthRouter } = require('./routes/health');
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const { router: instrumentRouter } = require('./routes/instrumentConfig');
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const metricsRouter = require('./routes/metrics');
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async function bootstrap() {
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await migrate();
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await instrumentService.init();
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const connectors = [
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createHttpJsonConnector(),
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createHl7TcpConnector(),
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createAstmSerialConnector()
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];
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connectors.forEach((connector) => {
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connector.onMessage(async (payload) => {
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try {
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await processMessage(connector.name(), payload);
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} catch (err) {
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logger.error({ err: err.message, connector: connector.name() }, 'pipeline error');
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}
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});
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connector.onError((err) => {
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logger.error({ err: err.message }, `${connector.name()} emitted error`);
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});
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});
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await Promise.all(connectors.map((connector) => connector.start()));
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await startWorker();
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const app = express();
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app.use('/health', createHealthRouter(connectors));
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app.use('/instruments', instrumentRouter);
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app.use('/metrics', metricsRouter);
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app.listen(config.healthPort, () => {
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logger.info({ port: config.healthPort }, 'health server ready');
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});
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process.on('SIGINT', async () => {
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logger.info('shutdown signal received');
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await shutdown(connectors);
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process.exit(0);
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});
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process.on('SIGTERM', async () => {
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logger.info('terminate signal received');
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await shutdown(connectors);
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process.exit(0);
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});
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}
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async function shutdown(connectors) {
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await stopWorker();
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await Promise.all(connectors.map((connector) => connector.stop()));
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}
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bootstrap().catch((err) => {
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logger.fatal({ err: err.message }, 'failed to start middleware');
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process.exit(1);
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});
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