feat: Zod schema validator for Fastify

src/index.ts

@@ -1,2 +1,3 @@
 export * from './errors';
 export * from './locales';
+export * from './plugins';

src/plugins/index.ts

@@ -0,0 +1 @@
+export * from './schema-validate';

src/plugins/schema-validate.ts

@@ -0,0 +1,12 @@
+import type { FastifySchemaCompiler } from 'fastify';
+import type { AnyZodObject } from 'zod';
+import { SchemaValidationError } from '../errors';
+
+/** Custom validator compiler that allows Zod to validate Fastify route schemas */
+export const zodValidatorCompiler: FastifySchemaCompiler<AnyZodObject> = ({ schema }) => {
+  return (data) => {
+    const result = schema.safeParse(data);
+    if (!result.success) return { error: new SchemaValidationError(result.error) };
+    return { value: result.data };
+  };
+};