500 Error Handling

For handling 500 errors, use the native features of Fastify / Express.

Example

$/api/tasks/controller.ts

import { defineController } from './$relay';
import { createTask } from '$/service/tasks';

export default defineController(() => ({
  post: async ({ body }) => {
    try {
      const task = await createTask(body.label);
      return { status: 201, body: task };
    } catch (e) {
      return { status: 500, body: 'Something broke!' };
    }
  },
}));

Fastify

• onError Hooks - Fastify

$/service/app.ts

import Fastify, { FastifyServerFactory } from 'fastify';
import { API_BASE_PATH } from '$/service/envValues';
import server from '$/$server';

export const init = (serverFactory?: FastifyServerFactory) => {
  const app = Fastify({ serverFactory });
  app.addHook('onError', (req, reply, err) => {
    console.error(err.stack);
  });
  server(app, { basePath: API_BASE_PATH });
  return app;
};

Express

• The default error handler - Express

$/service/app.ts

import express from 'express';
import server from '$/$server';
import { API_BASE_PATH } from '$/service/envValues';

export const init = () => {
  const app = express();
  app.use((err, req, res, next) => {
    console.error(err.stack);
    res.status(500).send('Something broke!');
  });
  server(app, { basePath: API_BASE_PATH });
  return app;
};