Latest 1.0.0
License BSD
Platforms ios 7.0, requires ARC

CocoaPods License

What is it for

You need this tool, if you like me have to connect several RESTful services in every app and completely fed up with endless manual json dictionaries handling. Forget about error prone string literals comparing, you will have native classes and methods for remote services like if they were your local objects.

What is it

ifacegen is a code generator, it simplifies using of existing REST+JSON APIs from Objective-C code. ifacegen makes native wrappers for remote service calls and JSON dictionaries. Simple IDL used for description of existing protocol. This is a fork from initial repo, that you can find at

What is it not

ifacegen is neither a general purpose serialization nor advanced networking tool. It only compiles IDL given and generates special Objective-C classes accordingly.

Documentation and Example

Example can be found in the repo. Also see IDL description and a tutorial in DOC file


iOS+ARC, Python 2.7


  • For ARC only;
  • NSJSONSerialization used in generated code for JSON data creation, so there is intermediate dictionary created before a data writing in a transport;
  • No "date", "enum" etc. in atomic IDL types. Only int32, int64, double, string, bool, raw и rawstr. "raw" will be converted in NSDictionary from JSON dictionary and "rawstr" — in NSDictionary from JSON dictionary encoded in string (like this: "data": "{"weird":42,"str":"yes"}");
  • All fields in IDL struct are treated as optional. No errors are raised if the value does not exist for the field.
  • No readable error messages for parser and generator yet.


pod 'ifacegen'


$ python [-h] [--prefix PREFIX] [-o OUTDIR] [--category CATEGORY] I [I ...]
  • h shows help;
  • PREFIX is a string, ObjC namespace prefix that is added to a name of each class to be generated;
  • OUTDIR is a string, path to directory where the generated files to be placed. By default these files will be placed into a "gen-objc" subdirectory of working dir;
  • CATEGORY is a string, name of category, serialization methods will be placed in this category instead of class file itself;
  • I [I …] are IDL file names to be processed.

If you use CocoaPods to install the tool, you may want to add "Run Script" phase to your Build Phases, like this:

python Pods/ifacegen/generator/ <IDL file names> -o <output directory>


  • Mandatory fields;
  • Swift code generator;
  • Parser and generator error handling improvement;
  • CoreData support.

Latest podspec

    "name": "ifacegen",
    "version": "1.0.0",
    "summary": "ifacegen generates native ObjC wrappers for REST+JSON APIs",
    "homepage": "",
    "license": {
        "type": "BSD"
    "authors": {
        "ptiz": "[email protected]"
    "platforms": {
        "ios": "7.0"
    "source": {
        "git": "",
        "tag": "1.0.0"
    "source_files": "transport/**/*.{h,m}",
    "public_header_files": "transport/**/*.h",
    "resources": "generator/*.py",
    "requires_arc": true

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