added example

Author: Code-Hex

example/index.ts

@@ -0,0 +1,54 @@
+import { Auth, emulatorHost, Env } from "../src";
+
+interface Bindings extends Env {
+  EMAIL_ADDRESS: string
+  PASSWORD: string
+  FIREBASE_AUTH_EMULATOR_HOST: string
+  PUBLIC_JWK_CACHE_KV: KVNamespace
+  PROJECT_ID: string
+  PUBLIC_JWK_CACHE_KEY: string
+}
+
+const signInPath = "/identitytoolkit.googleapis.com/v1/accounts:signInWithPassword?key=test1234"
+
+export async function handleRequest(req: Request, env: Bindings) {
+  const url = new URL(req.url)
+  const firebaseEmuHost = emulatorHost(env)
+  if (url.pathname === "/get-jwt" && !!firebaseEmuHost) {
+    const firebaseEmulatorSignInUrl = "http://" + firebaseEmuHost + signInPath
+    const resp = await fetch(firebaseEmulatorSignInUrl, {
+      method: "POST",
+      body: JSON.stringify({
+        email: env.EMAIL_ADDRESS,
+        password: env.PASSWORD,
+        returnSecureToken: true,
+      }),
+      headers: {
+        "Content-Type": "application/json"
+      }
+    })
+    return resp
+  }
+
+  const authorization = req.headers.get('Authorization')
+  if (authorization === null) {
+    return new Response(null, {
+      status: 400,
+    })
+  }
+  const jwt = authorization.replace(/Bearer\s+/i, "")
+  const auth = Auth.getOrInitialize(
+    env.PROJECT_ID,
+    env.PUBLIC_JWK_CACHE_KEY,
+    env.PUBLIC_JWK_CACHE_KV
+  )
+  const firebaseToken = await auth.verifyIdToken(jwt, env)
+
+  return new Response(JSON.stringify(firebaseToken), {
+    headers: {
+      "Content-Type": "application/json"
+    }
+  })
+}
+
+export default { fetch: handleRequest };

example/tsconfig.json

@@ -0,0 +1,7 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "types": ["@cloudflare/workers-types"]
+  },
+  "include": ["../src/**/*", "**/*"]
+}

example/wrangler.toml

@@ -0,0 +1,31 @@
+name = "firebase-auth-example"
+compatibility_date = "2022-07-05"
+workers_dev = true
+
+[vars]
+# Please set FIREBASE_AUTH_EMULATOR_HOST environment variable in your wrangler.toml.
+# see: https://developers.cloudflare.com/workers/platform/environment-variables/#environment-variables-via-wrangler
+#
+# Example for wrangler.toml
+# [vars]
+# FIREBASE_AUTH_EMULATOR_HOST = "localhost:8080"
+#
+# Override values for `--env production` usage
+# [env.production.vars]
+# FIREBASE_AUTH_EMULATOR_HOST = ""
+FIREBASE_AUTH_EMULATOR_HOST = "127.0.0.1:9099"
+
+# Setup user account in Emulator UI
+EMAIL_ADDRESS = "test@example.com"
+PASSWORD = "test1234"
+
+PROJECT_ID = "example-project12345" # see package.json (for emulator)
+
+# Specify cache key to store and get public jwk.
+PUBLIC_JWK_CACHE_KEY = "public-jwk-cache-key"
+
+kv_namespaces = [
+  { binding = "PUBLIC_JWK_CACHE_KV", id = "", preview_id = "" }
+]
+
+tsconfig = "./tsconfig.json"

firebase.json

@@ -0,0 +1,10 @@
+{
+  "emulators": {
+    "auth": {
+      "port": 9099
+    },
+    "ui": {
+      "enabled": true
+    }
+  }
+}

package.json

@@ -5,15 +5,19 @@
   "author": "Kei Kamikawa <code-hex@users.noreply.github.com>",
   "license": "MIT",
   "scripts": {
-    "test": "jest"
+    "test": "jest",
+    "start-firebase-emulator": "firebase emulators:start --project example-project12345",
+    "start-example": "wrangler dev example/index.ts  --config=example/wrangler.toml --local=true"
   },
   "dependencies": {},
   "devDependencies": {
     "@cloudflare/workers-types": "^3.14.0",
     "@types/jest": "^28.1.3",
+    "firebase-tools": "^11.2.0",
     "jest": "^28.1.2",
     "jest-environment-miniflare": "^2.5.1",
     "ts-jest": "^28.0.5",
-    "typescript": "^4.7.4"
+    "typescript": "^4.7.4",
+    "wrangler": "^2.0.15"
   }
 }