feat: add Zod sync validation (#114)

Author: jorisre

zod/src/__tests__/__snapshots__/zod.ts.snap

@@ -40,6 +40,46 @@ Object {
 }
 `;
 
+exports[`zodResolver should return a single error from zodResolver with \`mode: sync\` when validation fails 1`] = `
+Object {
+  "errors": Object {
+    "birthYear": Object {
+      "message": "Invalid input",
+      "type": "invalid_union",
+    },
+    "confirm": Object {
+      "message": "Passwords don't match",
+      "type": "custom_error",
+    },
+    "email": Object {
+      "message": "Invalid email",
+      "type": "invalid_string",
+    },
+    "enabled": Object {
+      "message": "Required",
+      "type": "invalid_type",
+    },
+    "password": Object {
+      "message": "Invalid",
+      "type": "invalid_string",
+    },
+    "repeatPassword": Object {
+      "message": "Required",
+      "type": "invalid_type",
+    },
+    "tags": Object {
+      "message": "Required",
+      "type": "invalid_type",
+    },
+    "username": Object {
+      "message": "Required",
+      "type": "invalid_type",
+    },
+  },
+  "values": Object {},
+}
+`;
+
 exports[`zodResolver should return all the errors from zodResolver when validation fails with \`validateAllFieldCriteria\` set to true 1`] = `
 Object {
   "errors": Object {

zod/src/__tests__/zod.ts

@@ -34,6 +34,22 @@ describe('zodResolver', () => {
     expect(result).toEqual({ errors: {}, values: data });
   });
 
+  it('should return values from zodResolver with `mode: sync` when validation pass', async () => {
+    const data: z.infer<typeof schema> = {
+      username: 'Doe',
+      password: 'Password123',
+      repeatPassword: 'Password123',
+      birthYear: 2000,
+      email: '[email protected]',
+      tags: ['tag1', 'tag2'],
+      enabled: true,
+    };
+
+    const result = await zodResolver(schema, undefined, { mode: 'sync' })(data);
+
+    expect(result).toEqual({ errors: {}, values: data });
+  });
+
   it('should return a single error from zodResolver when validation fails', async () => {
     const data = {
       password: '___',
@@ -46,6 +62,18 @@ describe('zodResolver', () => {
     expect(result).toMatchSnapshot();
   });
 
+  it('should return a single error from zodResolver with `mode: sync` when validation fails', async () => {
+    const data = {
+      password: '___',
+      email: '',
+      birthYear: 'birthYear',
+    };
+
+    const result = await zodResolver(schema, undefined, { mode: 'sync' })(data);
+
+    expect(result).toMatchSnapshot();
+  });
+
   it('should return all the errors from zodResolver when validation fails with `validateAllFieldCriteria` set to true', async () => {
     const data = {
       password: '___',

zod/src/types.ts

@@ -8,7 +8,8 @@ import type { ParseParams } from 'zod/lib/src/parser';
 
 export type Resolver = <T extends z.ZodSchema<any, any>>(
   schema: T,
-  options?: ParseParams,
+  schemaOptions?: ParseParams,
+  resolverOptions?: { mode: 'async' | 'sync' },
 ) => <TFieldValues extends FieldValues, TContext>(
   values: UnpackNestedValue<TFieldValues>,
   context?: TContext,

zod/src/zod.ts

@@ -47,21 +47,24 @@ const parseErrorSchema = (
   );
 };
 
-export const zodResolver: Resolver = (schema, options) => async (
-  values,
-  _,
-  validateAllFieldCriteria = false,
-) => {
-  const result = schema.safeParse(values, options);
+export const zodResolver: Resolver = (
+  schema,
+  schemaOptions,
+  { mode } = { mode: 'async' },
+) => async (values, _, validateAllFieldCriteria = false) => {
+  try {
+    const result =
+      mode === 'async'
+        ? await schema.parseAsync(values, schemaOptions)
+        : schema.parse(values, schemaOptions);
 
-  if (result.success) {
-    return { values: result.data, errors: {} };
+    return { values: result, errors: {} };
+  } catch (error) {
+    return {
+      values: {},
+      errors: transformToNestObject(
+        parseErrorSchema(error, validateAllFieldCriteria),
+      ),
+    };
   }
-
-  return {
-    values: {},
-    errors: transformToNestObject(
-      parseErrorSchema(result.error, validateAllFieldCriteria),
-    ),
-  };
 };