#StackKit

StackKit is a Cocoa framework used to interact with the Stack Exchange API (used by Stack Overflow, Super User, Server Fault, Stack Exchange, and related websites).

It is developed by Dave DeLong. Significant contributions (suggestions, enhancements, etc) have been made by Alex Rozanski, Brock Woolf, Can Berk Güder, Tobias Klonk, and Cory Kilger.

##Current Progress

About 85% of the API is implemented. Chances are it will work, but if it doesn't, please file a bug!

##Using the API

This framework can be used with Mac OS and iPhone OS applications.

###Mac Use the provided StackKit.xcodeproj file to build StackKit as a framework for inclusion in your Mac application.

###iPhone/iPod touch/iPad Use the provided StackKitMobile.xcodeproj file to build StackKit as a static library for inclusion in your mobile application. You must add -ObjC and -all_load to your Other Linker Flags section of your build settings. This ensures that the Categories in StackKit will be loaded with the static library.

###Running the unit tests Change the target to "Unit Tests" and then choose "Build and Run". The StackKit project is set up to only run the tests from the executable (so that they can be debugged), and not during compilation.

##The future

As the API is released and updated by the Stack Overflow team, we will be able to provide an underlying StackKit implementation for such features.

##Endpoint table

The following conventions are being used in this list:

Any predicate attribute that begins with "SK" is implied to be a Key Path.

Any predicate with a keypath should be constructed in the following format: @"%K = %@", SKSomeKeyPath, someValue

The ## symbol can be either a string, a number, or an object of the appropriate type. If the keypath is asking (for example) for a tag, the value can be either the tag's name or an SKTag object. In many cases, you may also pass an array or set of objects of the appropriate type in order to "OR" them together. For example, this predicate will request all questions created either one of the two users: SKQuestionOwner = (123, 456) (where (123, 456) is an array or set).

A value inside parenthesis (Example: (tags), (badges), etc) denotes a collection (array) of objects. This collection can be a collection of ID's, names, or objects (as appropriate).

Keypaths must always be the left expression of a predicate. While 42 = aProperty is a valid predicate, StackKit would require it to be of the form: aProperty = 42. This may change in the future.

The values listed as sort values are to be used as the key of an NSSortDescriptor. For example: NSSortDescriptor * sortByName = [[NSSortDescriptor alloc] initWithKey:SKUserDisplayName ascending:YES];

If you want...	Use this fetch entity:	And this predicate:	And you can sort it by (one of):
A specific answer	SKAnswer	SKAnswerID = ##	(none)
The answers for a specific question	SKAnswer	SKQuestionID = ##	SKAnswerLastActivityDate, SKAnswerViewCount, SKAnswerCreationDate, SKAnswerScore
A specific user's answers	SKAnswer	SKAnswerOwner = ##	SKAnswerLastActivityDate, SKAnswerViewCount, SKAnswerCreationDate, SKAnswerScore
All badges	SKBadge	(none)	(none)
All non-tag-based badges	SKBadge	SKBadgeTagBased = NO	(none)
All tag-based badges	SKBadge	SKBadgeTagBased = YES	(none)
A specific user's badges	SKBadge	SKBadgesAwardedToUser = ##	(none)
All users that have been awarded a specific badge	SKUser	SKUserBadges CONTAINS (badges)	(none)
A specific comment	SKComment	SKCommentID = ##	(none)
A specific user's comments	SKComment	SKCommentOwner = ##	SKCommentCreationDate, SKCommentScore
All comments from one user in reply to another user	SKComment	SKCommentOwner = ## AND SKCommentInReplyToUser = ##	SKCommentCreationDate, SKCommentScore
All comments where a specific user is mentioned	SKComment	SKCommentInReplyToUser = ##	SKCommentCreationDate, SKCommentScore
All comments for a post (a question or an answer)	SKComment	SKPostID = ##	SKCommentCreationDate, SKCommentScore
A list of questions	SKQuestion	(none)	SKQuestionCreationDate, SKQuestionScore
A specific question	SKQuestion	SKQuestionID = ##	(none)
Questions that are tagged with certain tags	SKQuestion	SKQuestionTags CONTAINS (tags)	SKQuestionCreationDate, SKQuestionScore
Unanswerd questions	SKQuestion	SKQuestionAnswerCount = 0	SKQuestionCreationDate, SKQuestionScore
Favorited questions of a specific user	SKQuestion	SKFavoritedByUser = ##	SKQuestionLastActivityDate, SKQuestionViewCount, SKQuestionCreationDate, SKQuestionScore, SKQuestionFavoritedDate
Questions asked by a specific user	SKQuestion	SKQuestionOwner = ##	SKQuestionLastActivityDate, SKQuestionViewCount, SKQuestionCreationDate, SKQuestionScore
A list of all tags	SKTag	(none)	SKTagNumberOfTaggedQuestions, SKTagLastUsedDate, SKTagName
A list of tags in which a specific user has participated	SKTag	SKTagsParticipatedInByUser = ##	SKTagNumberOfTaggedQuestions, SKTagLastUsedDate, SKTagName
A list of tags with a particular string in the name	SKTag	SKTagName CONTAINS "string"	SKTagNumberOfTaggedQuestions, SKTagLastUsedDate, SKTagName
A list of users	SKUser	(none)	SKUserReputation, SKUserCreationDate, SKUserDisplayName
To search for users by their name	SKUser	SKUserDisplayName CONTAINS "string"	SKUserReputation, SKUserCreationDate, SKUserDisplayName
A specific user	SKUser	SKUserID = ##	(none)
A list of recent activity for a specific user	SKUserActivity	SKUserID = ##	(none)
To search for questions by their title or tags	SKQuestion	One of: SKQuestionTitle CONTAINS "string" SKQuestionTags CONTAINS (tags) NOT(SKQuestionTags CONTAINS (tags))	SKQuestionLastActivityDate, SKQuestionViewCount, SKQuestionCreationDate, SKQuestionScore
The activity on a specific question	(not yet implemented)	(not yet implemented)	(not yet implemented)
A list of revisions for a question or answer	(not yet implemented)	(not yet implemented)	(not yet implemented)
A specific revision	(not yet implemented)	(not yet implemented)	(not yet implemented)
A list of reputation changes for a specific user	(not yet implemented)	(not yet implemented)	(not yet implemented)