Initial import of verae-access-api from zapier monorepo

NATS.md

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+# NATS — verae-access-api
+
+Plane `api`. Ingress `verae.access.api.*`. Authz then statement.get / usage.recorded / jobs.watch. Never archive or credits.

README.md

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+# verae-access-api
+
+**Direct customer API** plane (`x-api-key`). Separate from the Zapier Platform app.
+
+**Forgejo:** https://git.georgelambert.org/marchon/verae-access-api
+
+Address path: `verae.access.api.*` → `verae.access.authz.check` → `verae.billing.statement.get` / `verae.zapier.jobs.watch` (HTTPS to middleware, not a Zapier NATS client).
+
+Cannot `balance.adjust` or `archive.put`.
+
+Port `:3022`.

package.json

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+{
+  "name": "verae-access-api",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "description": "Direct customer API access plane (x-api-key, not Zapier)",
+  "scripts": {
+    "start": "node src/server.js",
+    "test": "node --test test/*.test.js"
+  }
+}

src/server.js

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+#!/usr/bin/env node
+/** Direct customer API (x-api-key). Not Zapier Platform. */
+import http from 'node:http';
+
+const PORT = Number(process.env.PORT || 3022);
+const AUTHZ = (process.env.AUTHZ_URL || 'http://127.0.0.1:3020').replace(/\/$/, '');
+const BOOKS = (process.env.ACCOUNT_BALANCE_URL || 'http://127.0.0.1:3010').replace(/\/$/, '');
+const MW = (process.env.ZAPPIER_UPSTREAM || 'http://127.0.0.1:3100').replace(/\/$/, '');
+const PLANE = 'api';
+
+async function check(subject, principal, extra = {}) {
+  const r = await fetch(`${AUTHZ}/check`, {
+    method: 'POST',
+    headers: { 'content-type': 'application/json' },
+    body: JSON.stringify({ plane: PLANE, subject, principal, ...extra }),
+  });
+  return r.json();
+}
+
+const server = http.createServer(async (req, res) => {
+  const url = new URL(req.url || '/', `http://127.0.0.1:${PORT}`);
+  const json = (code, obj) => {
+    res.writeHead(code, { 'content-type': 'application/json' });
+    res.end(JSON.stringify(obj));
+  };
+  try {
+    if (req.method === 'GET' && url.pathname === '/health') {
+      return json(200, { ok: true, role: 'verae-access-api', plane: PLANE });
+    }
+    const key = req.headers['x-api-key'];
+    const principal = typeof key === 'string' ? key : 'anonymous';
+    const st = url.pathname.match(/^\/v1\/statement\/([^/]+)$/);
+    if (req.method === 'GET' && st) {
+      const gate = await check('verae.billing.statement.get', principal);
+      if (!gate.allow) return json(403, gate);
+      const r = await fetch(`${BOOKS}/statement/${st[1]}`);
+      return json(r.status, { ...(await r.json()), plane: PLANE, source: 'account-balance' });
+    }
+    if (req.method === 'POST' && url.pathname === '/v1/timestamp') {
+      const gate = await check('verae.zapier.jobs.watch', principal);
+      if (!gate.allow) return json(403, gate);
+      const chunks = [];
+      for await (const c of req) chunks.push(c);
+      const r = await fetch(`${MW}/zapier/v1/timestamp`, {
+        method: 'POST',
+        headers: { 'content-type': 'application/json', 'x-api-key': principal },
+        body: Buffer.concat(chunks),
+      });
+      return json(r.status, { ...(await r.json().catch(() => ({}))), plane: PLANE });
+    }
+    json(404, { error: 'not found' });
+  } catch (err) {
+    json(502, { error: err.message });
+  }
+});
+
+server.listen(PORT, '0.0.0.0', () => {
+  process.stdout.write(`verae-access-api http://0.0.0.0:${PORT}/ plane=${PLANE}\n`);
+});

test/health.test.js

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+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { spawn } from 'node:child_process';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const root = path.join(path.dirname(fileURLToPath(import.meta.url)), '..');
+const authzRoot = path.join(root, '..', 'verae-access-authz');
+
+test('api plane health and authz deny on credits', async () => {
+  const authzPort = 18024;
+  const apiPort = 18025;
+  const authz = spawn(process.execPath, ['src/server.js'], {
+    cwd: authzRoot,
+    env: { ...process.env, PORT: String(authzPort) },
+    stdio: ['ignore', 'pipe', 'pipe'],
+  });
+  const api = spawn(process.execPath, ['src/server.js'], {
+    cwd: root,
+    env: { ...process.env, PORT: String(apiPort), AUTHZ_URL: `http://127.0.0.1:${authzPort}` },
+    stdio: ['ignore', 'pipe', 'pipe'],
+  });
+  await new Promise((r) => setTimeout(r, 500));
+  try {
+    const h = await (await fetch(`http://127.0.0.1:${apiPort}/health`)).json();
+    assert.equal(h.plane, 'api');
+    const deny = await fetch(`http://127.0.0.1:${authzPort}/check`, {
+      method: 'POST',
+      headers: { 'content-type': 'application/json' },
+      body: JSON.stringify({ plane: 'api', subject: 'verae.billing.balance.adjust' }),
+    });
+    assert.equal(deny.status, 403);
+  } finally {
+    api.kill('SIGTERM');
+    authz.kill('SIGTERM');
+  }
+});