fix: allow plugins to set email and password values (#1212)

packages/better-auth/src/__snapshots__/init.test.ts.snap

@@ -100,10 +100,6 @@ exports[`init > should match config 1`] = `
       "open": true,
       "readonly": false,
     },
-    "emailAndPassword": {
-      "autoSignIn": true,
-      "enabled": false,
-    },
     "plugins": [],
     "secret": "better-auth-secret-123456789",
   },

packages/better-auth/src/api/routes/sign-up.ts

@@ -204,7 +204,7 @@ export const signUpEmail = <O extends BetterAuthOptions>() =>
 			}
 
 			if (
-				!ctx.context.options.emailAndPassword.autoSignIn ||
+				ctx.context.options.emailAndPassword.autoSignIn === false ||
 				ctx.context.options.emailAndPassword.requireEmailVerification
 			) {
 				return ctx.json({

packages/better-auth/src/init.test.ts

@@ -98,4 +98,53 @@ describe("init", async () => {
 			ok: true,
 		});
 	});
+
+	it("should allow plugins to set config values", async () => {
+		const ctx = await init({
+			database,
+			baseURL: "http://localhost:3000",
+			plugins: [
+				{
+					id: "test-plugin",
+					init(ctx) {
+						return {
+							context: ctx,
+							options: {
+								emailAndPassword: {
+									enabled: true,
+								},
+							},
+						};
+					},
+				},
+			],
+		});
+		expect(ctx.options.emailAndPassword?.enabled).toBe(true);
+	});
+
+	it("should not allow plugins to set config values if theyre set in the main config", async () => {
+		const ctx = await init({
+			database,
+			baseURL: "http://localhost:3000",
+			emailAndPassword: {
+				enabled: false,
+			},
+			plugins: [
+				{
+					id: "test-plugin",
+					init(ctx) {
+						return {
+							context: ctx,
+							options: {
+								emailAndPassword: {
+									enabled: true,
+								},
+							},
+						};
+					},
+				},
+			],
+		});
+		expect(ctx.options.emailAndPassword?.enabled).toBe(false);
+	});
 });

packages/better-auth/src/init.ts

@@ -55,11 +55,6 @@ export const init = async (options: BetterAuthOptions) => {
 		baseURL: baseURL ? new URL(baseURL).origin : "",
 		basePath: options.basePath || "/api/auth",
 		plugins: plugins.concat(internalPlugins),
-		emailAndPassword: {
-			...options.emailAndPassword,
-			enabled: options.emailAndPassword?.enabled ?? false,
-			autoSignIn: options.emailAndPassword?.autoSignIn ?? true,
-		},
 	};
 	const cookies = getCookies(options);
 	const tables = getAuthTables(options);