reddift

by sonsongithub

sonsongithub / reddift

Swift Reddit API Wrapper

211 Stars 48 Forks Last release: Not found MIT License 632 Commits 14 Releases

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Carthage compatible Version License Platform Build Status

reddift

reddift is Swift Reddit API Wrapper framework, and includes a browser is developed using the framework.

  • Supports OAuth2(is not supported on tvOS currently).
  • Supports multi-accounts.
  • Includes a sample application(iOS only).

Browser

  • It's a typical browser of reddit.com.
  • This application uses "reddift framework" in order to access reddit.com.
  • Includes almost all of functions, such as image thumbnails, browsing comments, search subreddits and so on.
  • If you need more features to this, please send pull requests to me.

reddift-comments reddift-images

Document

How to build

Now, it's under developing. You have to pay attention to use this library.

1. Check out source code.

# check out reddift and its submodules.
> git clone --recursive https://github.com/sonsongithub/reddift.git

Check that these libraries are checked out at each path correctly.

/framework/vendor/HTMLSpecialCharacters
/framework/vendor/MiniKeychain

2. Create application(installed app) at reddit.com

Create new installed app via preference page at reddit.com. And then, check your app's

cliend_id
and fill out
redirect_uri
for OAuth2. For example,
redirect_uri
is set to
myapp://response
. In following sample,
redirect_uri
is set to
reddift://response
.

installedapp

3. Set up
reddift_config.json

This JSON file saves application information to use OAuth. Rename

reddift_config.json.sample
to
reddift_config.json
. And fill out
DeveloperName
,
redirect_uri
and
client_id
.
redirect_uri
must be same one you registered at reddit.com. You can check
client_id
at application tab. reddift generates http's user-agent property using this JSON and application's info.plist.
{
  "DeveloperName": "",
  "redirect_uri": "",
  "client_id": ""
}

4. Set up your URI on Xcode

In Xcode, set up URL Types in order to receive call back from Safari. Set

URL Schemes
to
redirect_uri
that you set at reddit.com. You don't have to include
://response
to this form. These URI must be identical. If they are not identical, reddit.com does not authorize your OAuth request. In following sample,
URL Schemes
is set to
reddift
.

reddit2

How to build test

1. Register user script app

Test uses Application Only OAuth to remove user interaction from test process. If you want to run tests of reddift, you have to create another "Script" type application(personal use script) at reddit.com.

userscript

2. Fill out
test_config.json

At first, rename

test_config.json.sample
to
test_config.json
. Fill each following value using above preference pain of reddit.com.
{
  "username": "test user account",
  "password": "test user password",
  "client_id": "test app client ID(must be script type app)",
  "secret": "test app secret"
}

3. Start test

Cmd + U.

How to build browser sample

You have to build dependent frameworks using

carthage
before building a sample application using Xcode.
# before open xcode project file.
> carthage update --platform iOS

carthage
works corretly, you can get following frameworks at each path.
/Carthage/Build/iOS/FLAnimatedImage.framework
/Carthage/Build/iOS/YouTubeGetVideoInfoAPIParser.framework
/Carthage/Build/iOS/UZTextView.framework

And, you get to edit URI types and reddift_config.json as same as the framework.

Create you app.

Get something & Error handling

reddift returns

Result
object as a result. Get the value or error from
Result
object. Concretely, you can access either value evaluating enum state like a following code.
// do not use "!" in your code
switch(result) {
case .failure(let error):
    println(error)
case .success(let listing):
    // do something to listing
}

In more detail about this coding style, see "Efficient JSON in Swift with Functional Concepts and Generics".

Create session

At first, you have to implement codes to receive the response of OAuth2 in

UIAppDelegate
. reddift let you save tokens as a specified name into KeyChain. Specifically, following sample code saves token as user name at reddit.com.
func application(application: UIApplication, openURL url: NSURL, sourceApplication: String?, annotation: AnyObject) -> Bool {
    return OAuth2Authorizer.sharedInstance.receiveRedirect(url, completion:{(result) -> Void in
        switch result {
        case .failure(let error):
            print(error)
        case .success(let token):
            dispatch_async(dispatch_get_main_queue(), { () -> Void in
                OAuth2TokenRepository.saveIntoKeychainToken(token, name:token.name)
            })
        }
    })
}

To communicate with reddit.com via OAuth2, you have to create

Session
object. See following section about getting response or error handling.
let result = OAuth2TokenRepository.restoreFromKeychainWithName(name)
switch result {
case .failure(let error):
    print(error.description)
case .success(let token):
    con.session = Session(token: token)
}

You can get contents from reddit via

Session
object like following codes.
session?.getList(paginator, subreddit:subreddit, sort:sortTypes[seg.selectedSegmentIndex], timeFilterWithin:.All, completion: { (result) in
    switch result {
    case .failure(let error):
        print(error)
    case .success(let listing):
        self.links.appendContentsOf(listing.children.flatMap{$0 as? Link})
    }
})

Use Application Only OAuth

You can use

OAuth2AppOnlyToken
when you want to write a code for test or personal script tool(such as CLI).
OAuth2AppOnlyToken
enabled to access reddit without human action in order to authorize in web browser apps. Do not use
Oauth2AppOnlyToken
in installed app in terms of security.
OAuth2AppOnlyToken.getOAuth2AppOnlyToken(
    username: username,
    password: password,
    clientID: clientID,
    secret: secret,
    completion:( { (result) -> Void in
    switch result {
    case .failure(let error):
        print(error)
    case .success(let token):
        self.session = Session(token: token)
    }
}))

Further more,

In more detail, See my sample application, test code or Playground code included in this repository.

Playground

You can play with reddift in Playground. In more detail, check reddift.playground package. Before using, you have to copy

test_config.json
into
./reddift.playground/Resources
in order to specify user account and your application informatin because reddift on Playground uses "Application Only OAuth".

playground

Dependency

License

MIT License.

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