feat: support custom serialization / deserialization (WIP)

integration-tests-definitions/todo-lists.yaml

@@ -171,6 +171,9 @@ components:
         created:
           type: string
           format: date-time
+          x-alpha-transform:
+            fn: (it) => new Date(it)
+            type: Date
         updated:
           type: string
           format: date-time

integration-tests/typescript-angular/src/generated/todo-lists.yaml/models.ts

@@ -12,7 +12,7 @@ export type t_CreateUpdateTodoList = {
 }
 
 export type t_TodoList = {
-  created: string
+  created: Date
   id: string
   incompleteItemCount: number
   name: string

integration-tests/typescript-axios/src/generated/todo-lists.yaml/models.ts

@@ -12,7 +12,7 @@ export type t_CreateUpdateTodoList = {
 }
 
 export type t_TodoList = {
-  created: string
+  created: Date
   id: string
   incompleteItemCount: number
   name: string

integration-tests/typescript-fetch/src/generated/todo-lists.yaml/models.ts

@@ -12,7 +12,7 @@ export type t_CreateUpdateTodoList = {
 }
 
 export type t_TodoList = {
-  created: string
+  created: Date
   id: string
   incompleteItemCount: number
   name: string

integration-tests/typescript-koa/src/generated/api.github.com.yaml/generated.ts

@@ -34177,7 +34177,10 @@ export function createRouter(implementation: Implementation): KoaRouter {
   const migrationsListForOrgQuerySchema = z.object({
     per_page: z.coerce.number().optional(),
     page: z.coerce.number().optional(),
-    exclude: z.array(z.enum(["repositories"])).optional(),
+    exclude: z
+      .union([z.array(z.enum(["repositories"])), z.enum(["repositories"])])
+      .optional()
+      .transform((it) => (Array.isArray(it) || it === undefined ? it : [it])),
   })
 
   const migrationsListForOrgResponseValidator = responseValidationFactory(
@@ -34304,7 +34307,10 @@ export function createRouter(implementation: Implementation): KoaRouter {
   })
 
   const migrationsGetStatusForOrgQuerySchema = z.object({
-    exclude: z.array(z.enum(["repositories"])).optional(),
+    exclude: z
+      .union([z.array(z.enum(["repositories"])), z.enum(["repositories"])])
+      .optional()
+      .transform((it) => (Array.isArray(it) || it === undefined ? it : [it])),
   })
 
   const migrationsGetStatusForOrgResponseValidator = responseValidationFactory(
@@ -36199,7 +36205,10 @@ export function createRouter(implementation: Implementation): KoaRouter {
     page: z.coerce.number().optional(),
     sort: z.enum(["created_at"]).optional(),
     direction: z.enum(["asc", "desc"]).optional(),
-    owner: z.array(z.string()).max(10).optional(),
+    owner: z
+      .union([z.array(z.string()).max(10), z.string()])
+      .optional()
+      .transform((it) => (Array.isArray(it) || it === undefined ? it : [it])),
     repository: z.string().optional(),
     permission: z.string().optional(),
     last_used_before: z.string().datetime({ offset: true }).optional(),
@@ -36508,7 +36517,10 @@ export function createRouter(implementation: Implementation): KoaRouter {
     page: z.coerce.number().optional(),
     sort: z.enum(["created_at"]).optional(),
     direction: z.enum(["asc", "desc"]).optional(),
-    owner: z.array(z.string()).max(10).optional(),
+    owner: z
+      .union([z.array(z.string()).max(10), z.string()])
+      .optional()
+      .transform((it) => (Array.isArray(it) || it === undefined ? it : [it])),
     repository: z.string().optional(),
     permission: z.string().optional(),
     last_used_before: z.string().datetime({ offset: true }).optional(),
@@ -77418,7 +77430,10 @@ export function createRouter(implementation: Implementation): KoaRouter {
   })
 
   const migrationsGetStatusForAuthenticatedUserQuerySchema = z.object({
-    exclude: z.array(z.string()).optional(),
+    exclude: z
+      .union([z.array(z.string()), z.string()])
+      .optional()
+      .transform((it) => (Array.isArray(it) || it === undefined ? it : [it])),
   })
 
   const migrationsGetStatusForAuthenticatedUserResponseValidator =

integration-tests/typescript-koa/src/generated/azure-core-data-plane-service.tsp/generated.ts

@@ -1040,7 +1040,10 @@ export function createRouter(implementation: Implementation): KoaRouter {
     top: z.coerce.number().optional(),
     skip: z.coerce.number().optional(),
     maxpagesize: z.coerce.number().optional(),
-    select: z.array(z.string()).optional(),
+    select: z
+      .union([z.array(z.string()), z.string()])
+      .optional()
+      .transform((it) => (Array.isArray(it) || it === undefined ? it : [it])),
   })
 
   const widgetsListWidgetsResponseValidator = responseValidationFactory(

integration-tests/typescript-koa/src/generated/petstore-expanded.yaml/generated.ts

@@ -102,7 +102,10 @@ export function createRouter(implementation: Implementation): KoaRouter {
   const router = new KoaRouter()
 
   const findPetsQuerySchema = z.object({
-    tags: z.array(z.string()).optional(),
+    tags: z
+      .union([z.array(z.string()), z.string()])
+      .optional()
+      .transform((it) => (Array.isArray(it) || it === undefined ? it : [it])),
     limit: z.coerce.number().optional(),
   })