Documentation Status: Incomplete; look at code and/or unit tests for the moment.

An Objective-C implementation of the JSON Hypertext Application Language Internet-Draft.

Installation

CocoaPods is the easiest way to use ObjectiveHAL.

platform :ios, '6.1'
pod 'ObjectiveHAL'

Examples

ObjectiveHAL depends on the AFNetworking library for network operations. Specifically, the user of ObjectiveHAL is expected to construct an AFHTTPClient and pass a pointer to it when creating any link traversal operation.

The examples are all based on the following HAL document:

{
  "_links": {
    "curies": [
      {
        "href": "http://tempuri.org/rels/{rel}",
        "name": "r",
        "templated": "true"
      },
      {
        "href": "http://tempuri.org/rels/app/{rel}",
        "name": "app",
        "templated": "true"
      },
      {
        "href": "http://tempuri.org/rels/asset/{rel}",
        "name": "asset",
        "templated": "true"
      }
    ],
    "self": {
      "href": "/app/2"
    },
    "app:icon": {
      "href": "/icon/2"
    }
  },
  "_embedded": {
    "app:icon": {
      "_links": {
        "self": {
          "href": "/icon/2"
        },
        "asset:small_image": {
          "href": "/images/i310.png"
        },
        "asset:large_image": {
          "href": "/images/i223.png"
        }
      }
    }
  },
  "name": "High Altitude Survival (resource)",
  "synopsis": "A series of short films that illustrate some of the dangers inherent in high altitude mountainering and discuss life-saving survival techniques."
}

Creating a HAL resource from some JSON

// Fetch JSON somehow.
id json = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];

// Construct HAL resource.
OHResource *resource = [OHResource resourceWithJSONData:json];

Accessing Resource Properties