How to validate the JSON Request in camel rest

Question

I need to validate incoming request to the camel rest service based on some schema. for example.

In request as given below

{
 "routeId" : "fileBatchRoute",
 "action" : "start",
 "sourceLocation" : "sourceDirectory",
 "destinationLocation" : "destinationDirectory"
}

Above request should be validated based on below conditions 1. It must contain action element and format should be above. 2. RouteId should be present.

Answer 1

You can use json-validator component. With schema generation can help you tool JSONschema.net.

---

With your requirements (routeId is required, action is required and is one of "start", "stop", "suspend", "resume") could schema be something like:

routeSchema.json:

{
  "definitions": {},
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "object",
  "required": [
    "routeId",
    "action"
  ],
  "properties": {
    "routeId": {
      "type": "string"
    },
    "action": {
      "type": "string",
      "enum": [
        "start",
        "stop",
        "suspend",
        "resume"
      ]
    },
    "sourceLocation": {
      "type": "string"
    },
    "destinationLocation": {
      "type": "string"
    }
  }
}

Route definition:

.to("json-validator:routeSchema.json")