{
  "title": "Apache Thrift Calculator Service - IDL Example",
  "description": "A complete example of the classic Apache Thrift tutorial Calculator service, showing IDL constructs converted to JSON representation",
  "source": "https://github.com/apache/thrift/blob/master/tutorial/tutorial.thrift",
  "idl_source": "tutorial.thrift",
  "namespace": {
    "cpp": "tutorial",
    "d": "tutorial",
    "dart": "tutorial",
    "java": "tutorial",
    "php": "tutorial",
    "perl": "tutorial",
    "haxe": "tutorial",
    "netstd": "tutorial"
  },
  "includes": [
    "shared.thrift"
  ],
  "constants": [
    {
      "type": "i32",
      "name": "INT32CONSTANT",
      "value": 9853
    },
    {
      "type": "map",
      "typeArgs": { "key": "string", "value": "string" },
      "name": "MAPCONSTANT",
      "value": { "hello": "world", "goodnight": "moon" }
    }
  ],
  "enums": [
    {
      "name": "Operation",
      "comment": "Mathematical operations supported by the calculator service",
      "values": [
        { "name": "ADD", "value": 1 },
        { "name": "SUBTRACT", "value": 2 },
        { "name": "MULTIPLY", "value": 3 },
        { "name": "DIVIDE", "value": 4 }
      ]
    }
  ],
  "structs": [
    {
      "name": "Work",
      "comment": "A work item representing a single calculation request",
      "fields": [
        { "id": 1, "type": "i32", "name": "num1", "default": 0, "comment": "First operand" },
        { "id": 2, "type": "i32", "name": "num2", "comment": "Second operand" },
        { "id": 3, "type": "Operation", "name": "op", "comment": "The operation to perform" },
        { "id": 4, "type": "string", "name": "comment", "requiredness": "optional", "comment": "Optional comment for this calculation" }
      ]
    }
  ],
  "exceptions": [
    {
      "name": "InvalidOperation",
      "comment": "Exception thrown when an invalid or illegal operation is requested",
      "fields": [
        { "id": 1, "type": "i32", "name": "whatOp" },
        { "id": 2, "type": "string", "name": "why" }
      ]
    }
  ],
  "services": [
    {
      "name": "Calculator",
      "comment": "A calculator service extending the shared SharedService",
      "extends": "shared.SharedService",
      "functions": [
        {
          "oneway": true,
          "returnType": "void",
          "name": "ping",
          "parameters": [],
          "comment": "A method definition without a return type means void; one-way function sends and does not wait"
        },
        {
          "returnType": "i32",
          "name": "add",
          "parameters": [
            { "id": 1, "type": "i32", "name": "num1" },
            { "id": 2, "type": "i32", "name": "num2" }
          ],
          "comment": "Adds two integers and returns the result"
        },
        {
          "returnType": "i32",
          "name": "calculate",
          "parameters": [
            { "id": 1, "type": "i32", "name": "logid", "comment": "Log entry ID for audit purposes" },
            { "id": 2, "type": "Work", "name": "w", "comment": "The work item describing the calculation" }
          ],
          "throws": [
            { "id": 1, "type": "InvalidOperation", "name": "ouch" }
          ],
          "comment": "Performs the specified calculation; throws InvalidOperation if the operation is illegal"
        },
        {
          "returnType": "void",
          "name": "zip",
          "parameters": [],
          "comment": "This method has a bug in the parameters; it should have been an exception in thrift IDL"
        }
      ]
    }
  ]
}