Request validation is not working with sls offline, but it is working in API Gateway

[qds-bhanwarlal]

Request validation is not working with severless-offline but it is working in API Gateway after deployment

Serverless Framework Version

Framework Core: 1.63.0
Plugin: 3.3.0
SDK: 2.3.0
Components Core: 1.1.2
Components CLI: 1.4.0

Packages Version

"serverless-reqvalidator-plugin": "^1.0.3"
"serverless-aws-documentation": "^1.1.0",
"serverless-offline": "^5.12.1",

serverless.yml

service:
  name: my-service

plugins:
  - serverless-reqvalidator-plugin
  - serverless-aws-documentation
  - serverless-offline

provider:
  name: aws
  runtime: nodejs12.x
  stage: dev
  region: us-east-1
  memorySize: 128
  environment:
    NODE_ENV: development

custom:
  documentation:
    api:
      info:
        version: '1.0.0'
        title: My API
        description: This is my API
      tags:
        -
          name: User
          description: User Management
    models:
      - name: MessageResponse
        contentType: "application/json"
        schema:
          type: object
          properties:
            message:
              type: string
      - name: RegisterUserRequest
        contentType: "application/json"
        schema:
          required: 
            - email
            - password
          properties:
            email:
              type: string
            password:
              type: string
      - name: RegisterUserResponse
        contentType: "application/json"
        schema:
          type: object
          properties:
            result:
              type: string
      - name: 400JsonResponse
        contentType: "application/json"
        schema:
          type: object
          properties:
            message:
              type: string
            statusCode:
              type: number
  commonModelSchemaFragments:
    MethodResponse400Json:
      statusCode: '400'
      responseModels:
        "application/json": 400JsonResponse

functions:
  signUp:
    handler: handle.singup
    events:
      - http:
          documentation:
            summary: "Register user"
            description: "Registers new user"
            tags:
              - User
            requestModels:
              "application/json": RegisterUserRequest
          method: post
          path: signup
          reqValidatorName: onlyBody
          methodResponses:
            - statusCode: '200'
              responseModels:
                "application/json": RegisterUserResponse
            - ${self:custom.commonModelSchemaFragments.MethodResponse400Json}

package:
  include:
    api/users.js

resources:
  Resources:
    onlyBody:  
      Type: "AWS::ApiGateway::RequestValidator"
      Properties:
        Name: 'only-body'
        RestApiId: 
          Ref: ApiGatewayRestApi
        ValidateRequestBody: true
        ValidateRequestParameters: false

Followed the same example mentioned in serverless-requestvalidator-plugin
Ref: https://stackoverflow.com/a/49143822/11141189

Also tried validation without serverless-requestvalidator-plugin used https://serverless.com/framework/docs/providers/aws/events/apigateway#request-schema-validators but it did worked with serverless-offline.

[ItayElgazar]

Any news with this one?

[qds-bhanwarlal]

No, did research but didn't got anything, if you get please share with me also.
Thank you.

[dherault]

What about serverless-offline v6, does it solve your issue?

[sthuber90]

Isn't it related to #734 and wasn't with the removal of PR #589 also the request validation removed?