feat: better-auth setup, github provider (#5)

* feat: better-auth setup, github provider

* chore: update .env.example

* feat: add TRUSTED_ORIGINS as env

* feat(auth): add cookie cache

* feat(pkg): export AUTH_PATH

Author: lorenzocorallo

backend/.env.example

@@ -1,5 +1,15 @@
+# PUBLIC_URL=""       # set up this value when deploying on a domain (without trailing slash). default to http://localhost:PORT
+# PORT=""             # you can change the server port if you want. default to 3000
+# TRUSTED_ORIGINS=""  # comma-separated list of allowed origins. default to http://localhost:3000,3001,3002,5173,5174,5175
+
 DB_HOST=""
 DB_PORT=""
 DB_USER=""
 DB_PASS=""
 DB_NAME="polinetwork_backend"
+
+# you generate it with `openssl rand -hex 20`
+BETTER_AUTH_SECRET=""
+# github provider https://www.better-auth.com/docs/authentication/github
+GITHUB_CLIENT_ID=""
+GITHUB_CLIENT_SECRET=""

backend/package.json

@@ -31,6 +31,7 @@
     "@hono/trpc-server": "^0.3.4",
     "@t3-oss/env-core": "^0.12.0",
     "@trpc/server": "11.0.0-rc.772",
+    "better-auth": "^1.2.7",
     "drizzle-orm": "^0.39.3",
     "hono": "^4.7.6",
     "pg": "^8.13.2",