relay: add support for NIP42 authentication

nip42.test.js

@@ -0,0 +1,27 @@
+/* eslint-env jest */
+
+require('websocket-polyfill')
+const {
+  relayInit,
+  generatePrivateKey,
+  finishEvent,
+  nip42
+} = require('./lib/nostr.cjs')
+
+test('auth flow', done => {
+  const relay = relayInit('wss://nostr.kollider.xyz')
+  relay.connect()
+  const sk = generatePrivateKey()
+
+  relay.on('auth', async challenge => {
+    await expect(
+      nip42.authenticate({
+        challenge,
+        relay,
+        sign: e => finishEvent(e, sk)
+      })
+    ).rejects.toBeTruthy()
+    relay.close()
+    done()
+  })
+})