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In this scenario, the application of the JSON Schema Validation policy to a Mock API created on Apinizer will be tested. Assuming that the JSON body of incoming requests in the scenario is the same, let’s add this to the All section. Generate JWK Screen We add JSON Schema Validation as a policy. Generate JWK Screen Example request body in Mock Api will be as follows: 
{
  "id": 1,
  "name": "John Doe",
  "email": "[email protected]",
  "age": 30,
  "isActive": true,
  "addresses": [
    {
      "street": "123 Elm St",
      "city": "Springfield",
      "postalCode": "12345"
    },
    {
      "street": "456 Oak St",
      "city": "Shelbyville",
      "postalCode": "67890"
    }
  ]
}
A JSON Schema Validation suitable for this includes the following:
  • id: Required, a positive integer.
  • name: Required, cannot be empty.
  • email: Required, must be in valid email format.
  • age: Optional, an integer greater than or equal to zero.
  • isActive: Optional, a boolean value.
  • addresses: Optional, an array containing addresses. Each address must contain street, city, and postalCode fields.
JSON Schema Validation to be added to the policy: 
{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "properties": {
    "id": {
      "type": "integer",
      "minimum": 1
    },
    "name": {
      "type": "string",
      "minLength": 1
    },
    "email": {
      "type": "string",
      "format": "email"
    },
    "age": {
      "type": "integer",
      "minimum": 0
    },
    "isActive": {
      "type": "boolean"
    },
    "addresses": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "street": { "type": "string" },
          "city": { "type": "string" },
          "postalCode": { "type": "string", "pattern": "^[0-9]{5}$" }
        },
        "required": ["street", "city", "postalCode"]
      }
    }
  },
  "required": ["id", "name", "email"]
}
The JSON Schema Validation content above is added to the “Schema” field in the image below and saved. Generate JWK Screen When we send a sample request from the test console, the email was sent incorrectly and validation was performed. We received a warning that the email is not valid. Generate JWK Screen