Amazon web services 我怎样才能过滤有效负载中不受欢迎的额外字段？

我在lambda前面有一个awsapi网关，将数据插入DynamoDB表。 API的PUT方法必须只允许修改某些字段

问题是，如果我在有效负载中提供一些额外的不需要的字段，它们将包含在请求中并更新表。 我希望在API网关级别实现过滤器，而不是lambda（因此它可以保持通用性）

注意：招摇过市正在工作，如果缺少一些字段，则在测试时，我会从API网关收到一个“无效请求正文”响应

下面是我的DynamoDB表中的所有字段：id、firstname、lastname、email、address

PUT方法不能修改字段“地址”

因此，我没有将字段“address”放在虚张声势中，我希望API网关拒绝插入，例如：

{
    "id" : "123",
    "firstname": "John",
    "lastname": "Doe",
    "email": "john.die@email.com",
    "address": "5 awesome avenue"
}

但它被接受并更新表

以下是我的招摇过市/openapi：

{
"openapi": "3.0.1",
"info": {
  "version": "2020.09.29",
  "title": "${api-name}"
},
"paths": {
  "/api/v1/people/{id}": {
    "put": {
      "responses": {
        "200": {
          "content": {
            "application/json": {
                "$ref": "#/components/schemas/GetDetailModel"
            }
          }
        }
      },
      "parameters": [
        {
          "name": "x-api-key",
          "in": "header",
          "required": true,
          "schema": {
            "type": "string"
          }
        },
        {
          "name": "id",
          "in": "path",
          "required": true,
          "schema": {
            "type": "integer"
          }
        }
      ],
      "requestBody": {
        "content": {
          "application/json": {
            "schema": {
              "$ref": "#/components/schemas/RequestBodyModel"
            }
          }
        }
      },
      "security": [
        {
          "api_key": []
        }
      ],
      "x-amazon-apigateway-request-validator": "ValidateAll",
      "x-amazon-apigateway-integration": {
        "uri": "${put-api}",
        "passthroughBehavior": "when_no_match",
        "httpMethod": "POST",
        "type": "aws_proxy"
      }
    }
  }
},

"components": {
  "schemas": {
    "RequestBodyModel": {
      "required": ["id","firstname","lastname","email"],
      "type": "object",
      "properties": {
        "id" : {"type": "integer"},
        "firstname": {"type": "string"},
        "lastname": {"type": "string"},
        "email": {"type": "string"}
      }
    },
    "GetDetailModel": {
        "type": "object",
        "properties": {
          "id" : {"type": "integer"},
          "firstname": {"type": "string"},
          "lastname": {"type": "string"},
          "email": {"type": "string"}
        }
      }
  },

  "securitySchemes": {
    "api_key": {
      "type": "apiKey",
      "name": "x-api-key",
      "in": "header"
    }
  }
},
"x-amazon-apigateway-request-validators": {
  "Validate body": {
    "validateRequestParameters": false,
    "validateRequestBody": true
  },
  "NoValidation": {
    "validateRequestParameters": false,
    "validateRequestBody": false
  },
  "ValidateAll": {
  "validateRequestParameters": true,
  "validateRequestBody": true
  }
}

}

我还尝试在“body”中使用“RequestBodyModel”参数，结果相同：

{
"openapi": "3.0.1",
"info": {
  "version": "2020.09.29",
  "title": "${api-name}"
},
"paths": {
  "/api/v1/people/{id}": {
    "put": {
      "responses": {
        "200": {
          "content": {
            "application/json": {
                "$ref": "#/components/schemas/GetDetailModel"
            }
          }
        }
      },
      "parameters": [
        {
          "name": "x-api-key",
          "in": "header",
          "required": true,
          "schema": {
            "type": "string"
          }
        },
        {
          "name": "id",
          "in": "path",
          "required": true,
          "schema": {
            "type": "integer"
          }
        },
        {
          "in": "body",
          "name": "RequestBodyModel",
          "required": true,
          "schema": {
            "$ref": "#/components/schemas/RequestBodyModel"
          }
        }
      ],
      "security": [
        {
          "api_key": []
        }
      ],
      "x-amazon-apigateway-request-validator": "ValidateAll",
      "x-amazon-apigateway-integration": {
        "uri": "${put-api}",
        "passthroughBehavior": "when_no_match",
        "httpMethod": "POST",
        "type": "aws_proxy"
      }
    }
  }
},

"components": {
  "schemas": {
    "RequestBodyModel": {
      "required": ["id","firstname","lastname","email"],
      "type": "object",
      "properties": {
        "id" : {"type": "integer"},
        "firstname": {"type": "string"},
        "lastname": {"type": "string"},
        "email": {"type": "string"}
      }
    },
    "GetDetailModel": {
        "type": "object",
        "properties": {
          "id" : {"type": "integer"},
          "firstname": {"type": "string"},
          "lastname": {"type": "string"},
          "email": {"type": "string"}
        }
      }
  },

  "securitySchemes": {
    "api_key": {
      "type": "apiKey",
      "name": "x-api-key",
      "in": "header"
    }
  }
},
"x-amazon-apigateway-request-validators": {
  "Validate body": {
    "validateRequestParameters": false,
    "validateRequestBody": true
  },
  "NoValidation": {
    "validateRequestParameters": false,
    "validateRequestBody": false
  },
  "ValidateAll": {
  "validateRequestParameters": true,
  "validateRequestBody": true
  }
}

}

谢谢你的帮助