feat: add auth

lib/auth-client.ts

@@ -0,0 +1,16 @@
+import { createAuthClient } from "better-auth/react";
+import { genericOAuthClient } from "better-auth/client/plugins";
+import { expoClient } from "@better-auth/expo/client";
+import * as SecureStore from "expo-secure-store";
+
+export const authClient = createAuthClient({
+  baseURL: "http://localhost:8081",
+  plugins: [
+    expoClient({
+      scheme: "money",
+      storagePrefix: "money",
+      storage: SecureStore,
+    }),
+    genericOAuthClient(),
+  ]
+});

lib/auth.ts

@@ -0,0 +1,24 @@
+import { betterAuth } from "better-auth";
+import { genericOAuth } from "better-auth/plugins";
+import { expo } from "@better-auth/expo";
+import { Pool } from "pg";
+
+export const auth = betterAuth({
+  database: new Pool({
+    connectionString: process.env.DATABASE_URL,
+  }),
+  plugins: [
+    expo(),
+    genericOAuth({
+      config: [
+        {
+          providerId: 'koon-family',
+          clientId: process.env.OAUTH_CLIENT_ID!,
+          clientSecret: process.env.OAUTH_CLIENT_SECRET!,
+          discoveryUrl: process.env.OAUTH_DISCOVERY_URL!,
+          scopes: ["profile", "email"],
+        }
+      ]
+    })
+  ]
+});