docs: add new 400 responses

Author: chertik77

app/middlewares/validateRequest.ts

@@ -1,38 +1,51 @@
-import { NextFunction, Request, Response } from 'express'
-import { z } from 'zod'
+import type { NextFunction, Request, Response } from 'express'
+
+import * as z from 'zod'
+
+type ValidateRequest<B, P, Q> = {
+  body?: B
+  params?: P
+  query?: Q
+}
 
 export const validateRequest =
   <B extends z.ZodSchema, P extends z.ZodSchema, Q extends z.ZodSchema>({
-    body,
-    params,
-    query
-  }: {
-    body?: B
-    params?: P
-    query?: Q
-  }) =>
+    body: bodySchema,
+    params: paramsSchema,
+    query: querySchema
+  }: ValidateRequest<B, P, Q>) =>
   (
     req: Request<z.infer<P>, unknown, z.infer<B>, z.infer<Q>>,
     res: Response,
     next: NextFunction
   ) => {
-    try {
-      if (body) body.parse(req.body)
-
-      if (params) params.parse(req.params)
-
-      if (query) query.parse(req.query)
-
-      next()
-    } catch (e) {
-      if (e instanceof z.ZodError) {
-        const errors = Object.fromEntries(
-          Object.entries(e.flatten().fieldErrors).map(([key, value]) => [
-            key,
-            value?.join(', ')
-          ])
-        )
-        res.status(400).json({ statusCode: 400, messages: errors })
+    const errors: Record<string, string> = {}
+
+    const parseAndValidate = <T extends z.ZodSchema>(
+      data: Pick<Request, 'body' | 'params' | 'query'>,
+      schema?: T
+    ) => {
+      if (!schema) return data
+
+      try {
+        return schema.parse(data)
+      } catch (e) {
+        if (e instanceof z.ZodError) {
+          e.errors.forEach(({ path, message }) => {
+            const errorPath = `${path.join('.')}`
+            errors[errorPath] = message
+          })
+        }
       }
     }
+
+    parseAndValidate(req.body, bodySchema)
+    parseAndValidate(req.params, paramsSchema)
+    parseAndValidate(req.query, querySchema)
+
+    if (Object.keys(errors).length > 0) {
+      return res.status(400).json({ statusCode: 400, messages: errors })
+    }
+
+    next()
   }

app/schemas/board.ts

@@ -35,5 +35,7 @@ export const EditBoardSchema = AddBoardSchema.partial()
 export const BoardParamsSchema = z.object({ boardId: zodObjectId() })
 
 export const UpdateOrderSchema = z.object({
-  ids: z.array(zodObjectId(), { message: 'Ids must be an array of strings' })
+  ids: z.array(zodObjectId(), {
+    message: 'Ids must be an array of valid ObjectIds'
+  })
 })