Hello JSON

The smallest canonical Pulse project: branch on the request path and return JSON or text.

Workflow

pulse doctor
pulse inspect
pulse test
pulse dev
pulse build

The documented test result below is executed by the documentation gate.

pulse test --json

{
  "status": "passed",
  "provider": "node",
  "summary": {
    "total": 3,
    "passed": 3,
    "failed": 0
  },
  "cases": [
    {
      "name": "health",
      "status": "passed",
      "response": {
        "status": 200
      }
    }
  ]
}

Wasm size

Artifact	Default build	--experimental-native-size	Reduction
canonical-native.wasm	2.3 KiB (2,353 bytes)	2.2 KiB (2,270 bytes)	3.5%

The executable documentation gate rebuilds and measures both variants on 1.0.0-beta.9. These are uncompressed on-disk sizes, not transfer sizes or platform limits.

Handler

import { Pulse } from '@pulse-compute/pulse'

const app = new Pulse({ auto: true })

app.get('/health', async (ctx) => ctx.json({ ok: true }))
app.get('/hello', async (ctx) => ctx.json({ message: 'hello from Pulse' }))
app.get('/*', async (ctx) => ctx.text('not found', { status: 404 }))

export default app

Project config

import { defineConfig } from '@pulse-compute/pulse'

export default defineConfig((_scope) => ({
  pulse: {
    entry: 'src/index.ts',
    tests: 'tests/pulse.harness.ts',
    defaultProfile: 'local',
    strict: true,
  },
  local: {
    host: 'node',
    target: 'native',
    outDir: 'dist',
    dev: { host: '127.0.0.1', port: 8787 },
  },
}))

Test harness

export default {
  cases: [
    {
      name: 'health',
      request: { path: '/health' },
      expect: { status: 200, json: { ok: true } },
    },
    {
      name: 'hello',
      request: { path: '/hello' },
      expect: {
        status: 200,
        json: { message: 'hello from Pulse' },
      },
    },
    {
      name: 'missing',
      request: { path: '/missing' },
      expect: { status: 404, text: 'not found' },
    },
  ],
}