SteemConnect Library for iOS / Swift
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README.md

SwiftyConnect

SteemConnect Library for iOS / Swift

swifty.png

Current Version: 0.2

How To Use

Installation

Carthage

github "caspernikus/SwiftyConnect" ~> 0.2

(When building SwiftyConnect the lib OAuth2 is also builded, there is no need to add OAuth2 inside your project, since SwiftyConenct contains OAuth2!)

Usage

SwiftyConnects make use of one main class called Steem. To use Steem you should ALWAYS use the sharedInstance => let steem = Steem.sharedInstance

You are strongly advised to setup Steem inside your AppDelegate (Please add an API Endpoint if you want to use the API)

steem.initialize(config: ["api": "https://api.steemit.com"])

Also inside your AppDelegate you should setup the OAuth Data (if you want to use it)

steem.auth.setConfig(conf: [
            "client_id": "<% YOUR CLIENT ID %>",
            "client_secret": "<% YOUR CLIENT SECRET %>",
            "authorize_uri": "https://v2.steemconnect.com/oauth2/authorize",
            "token_uri": "https://v2.steemconnect.com/api/oauth2/token",
            "redirect_uris": ["testauthapp://oauth/callback"], // CHANGE TO YOUR REDIRECT_URI
            "scope": "login,offline,vote,comment,custom_json", // ADD MORE
            "should_Debug": true, // IF YOU WANT TO RECEIVE DEBUG MESSAGES & VERBOSE STYLE
])

The last step inside the AppDelegate is to make use of the applicationOpenURL function:

func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool {
        if "testauthapp" == url.scheme {
            steem.auth.handleRedirectURL(url: url)
            return true
        }
        return false
    }

Simply copy & paste it and change testauthapp to your scheme you use in your redirect_uris!

Now we want to tell our App it should listen for schemes with the name testauthapp, to do so open your Info.plist and add following code:

<key>CFBundleURLTypes</key>
<array>
		<dict>
			<key>CFBundleTypeRole</key>
			<string>Viewer</string>
			<key>CFBundleURLName</key>
			<string>testauthapp</string>
			<key>CFBundleURLSchemes</key>
			<array>
				<string>testauthapp</string>
			</array>
		</dict>
</array>

SwiftyConnects 4 Classes

SwiftyConnects has 4 classes you can call from the Steem Class:

  • Auth (Authorize)
  • API (Fetch data)
  • Broadcast (Send data)
  • Helper (Useful functions / calculations)

Authorization & Revoking

Use authorize to authorize the user and open the SteemConnect Login Page in Safari

steem.auth.authorize() { jsonResponse in
  print(jsonResponse)
}

authorize returns your user data, which can be used whether to check if the auth worked or to setup your user object.

To revoke your token use

steem.auth.revoke { (success) in
}

REMINDER: To completely logout of SteemConnect one has to open SteemConnect on your Safari Browser and logout. Otherwise you can't switch accounts (this is an behaviour by steemconnect... BUT I already developing a multi account management for them)

If you want to check if an user is logged in without calling an endpoint use steem.auth.isAuthorized()

Methods

public class Auth {

    public func setConfig(conf: NSDictionary)

    public func getConfig() -> NSDictionary

    public func isAuthorized() -> Bool

    public func revoke(callback: @escaping ((Bool) -> Swift.Void))

    public func handleRedirectURL(url: URL)

    public func me(callback: @escaping ((JSONString) -> Swift.Void))

    public func updateUserMetadata(userMetadata: JSONString, callback: @escaping ((JSONString) -> Swift.Void))

    public func authorize(callback: @escaping ((JSONString) -> Swift.Void))
}

Broadcasting

Broadcasting is used to send data to the blockchain, and requires a valid authorized account!

Methods

public class Broadcast {

    public func vote(voter: String, author: String, permlink: String, weight: Int, completion: ((JSONString) -> Swift.Void)?)

    public func reblog(account: String, author: String, permlink: String, completion: ((JSONString) -> Swift.Void)?)

    public func customJSON(account: String, json: JSONString, completion: ((JSONString) -> Swift.Void)?)

    public func follow(follower: String, following: String, completion: ((JSONString) -> Swift.Void)?)

    public func unfollow(unfollower: String, unfollowing: String, completion: ((JSONString) -> Swift.Void)?)

    public func ignore(follower: String, following: String, completion: ((JSONString) -> Swift.Void)?)

    public func claimRewardBalance(account: String, rewardSBD: String, rewardSteem: String, rewardVests: Int, completion: ((JSONString) -> Swift.Void)?)

    public func comment(parentAuthor: String?, parentPermlink: String?, author: String, permlink: String, title: String, body: String, jsonMetadata: SwiftySteem.JSONMetadata, completion: ((JSONString) -> Swift.Void)?)
}

All Methods return a JSON / NSDictionary, to know what they return simply test it and print it out. If a method failed you can check if response["error"] is not nil, it will return the error.

API

public class Api {

    public func getTrendingTags(afterTag: String, limit: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getDiscussionsByTrending(query: SwiftyConnect.QueryDiscussionsBy, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getDiscussionsByCreated(query: SwiftyConnect.QueryDiscussionsBy, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getDiscussionsByActive(query: SwiftyConnect.QueryDiscussionsBy, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getDiscussionsByPayout(query: SwiftyConnect.QueryDiscussionsBy, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getDiscussionsByCashout(query: SwiftyConnect.QueryDiscussionsBy, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getDiscussionsByVotes(query: SwiftyConnect.QueryDiscussionsBy, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getDiscussionsByChildren(query: SwiftyConnect.QueryDiscussionsBy, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getDiscussionsByHot(query: SwiftyConnect.QueryDiscussionsBy, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getDiscussionsByFeed(query: SwiftyConnect.QueryDiscussionsBy, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getDiscussionsByBlog(query: SwiftyConnect.QueryDiscussionsBy, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getDiscussionsByComments(query: SwiftyConnect.QueryDiscussionsBy, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getBlock(blockNumber: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getBlockHeader(blockNumber: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getState(blockNumber: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getConfig(completion: ((Any?, Any?) -> Swift.Void)?)

    public func getDynamicGlobalProperties(completion: ((Any?, Any?) -> Swift.Void)?)

    public func getChainProperties(completion: ((Any?, Any?) -> Swift.Void)?)

    public func getFeedHistory(completion: ((Any?, Any?) -> Swift.Void)?)

    public func getCurrentMedianHistoryPrice(completion: ((Any?, Any?) -> Swift.Void)?)

    public func getHardforkVersion(completion: ((Any?, Any?) -> Swift.Void)?)

    public func getNextScheduledHardfork(completion: ((Any?, Any?) -> Swift.Void)?)

    public func getRewardFund(name: String, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getVestingDelegations(account: String, from: Int, limit: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getKeyReferences(key: String, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getAccounts(accounts: [String], completion: ((Any?, Any?) -> Swift.Void)?)

    public func getAccountReferences(id: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func lookupAccountNames(accounts: [String], completion: ((Any?, Any?) -> Swift.Void)?)

    public func lookupAccounts(lowerBoundName: String, limit: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getAccountCount(completion: ((Any?, Any?) -> Swift.Void)?)

    public func getConversionRequests(account: String, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getAccountHistory(name: String, from: Int, limit: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getOwnerHistory(account: String, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getRecoveryRequest(account: String, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getOrderBook(limit: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getOpenOrders(name: String, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getLiquidityQueue(name: String, limit: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getTransaction(trxId: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getTransactionHex(trx: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getRequiredSignatures(trx: Int, availableKeys: [String], completion: ((Any?, Any?) -> Swift.Void)?)

    public func getPotentialSignatures(trx: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func verifyAuthority(trx: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func verifyAccountAuthority(name: String, key: String, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getActiveVotes(author: String, permlink: String, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getAccountVotes(account: String, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getContent(author: String, permlink: String, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getContentReplies(author: String, permlink: String, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getDiscussionsByAuthorBeforeDate(author: String, startPermlink: String, beforeDate: String, limit: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getRepliesByLastUpdate(author: String, permlink: String, limit: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getWitnesses(witnessIds: [String], completion: ((Any?, Any?) -> Swift.Void)?)

    public func getWitnessByAccount(name: String, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getWitnessesByVote(from: Int, limit: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func lookupWitnessAccounts(lowerBoundName: String, limit: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getWitnessCount(completion: ((Any?, Any?) -> Swift.Void)?)

    public func getActiveWitnesses(completion: ((Any?, Any?) -> Swift.Void)?)

    public func getMinerQueue(completion: ((Any?, Any?) -> Swift.Void)?)

    public func getFollowers(name: String, start: String, type: String, limit: Int, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getFollowCount(account: String, completion: ((Any?, Any?) -> Swift.Void)?)

    public func getFollowing(name: String, start: String, type: String, limit: Int, completion: ((Any?, Any?) -> Swift.Void)?)
}

All Methods return a NSDictionary.

Reminder: There is a lack of Unit Tests for the API, currently I do not know if every method works as expected ! But try it out yourself, I guess most of them will work !

Helper

The Helper Class can be used for easy calculation or useful functions which probably every app needs! Currently there exist 4 functions which can be used:

public func calculateSteempower(vestingShares: String, callback:((Any?, Float?) -> Void)?)

public func getVotingPower(votingPower: Int, lastVoteTime: String) -> Double

public func createCommentPermlink(parentAuthor: String, parentPermlink: String) -> String

public func reputation(rawReputation: Double) -> Double

public func validAccountName(name: String) -> String?

public func convertToCurrency(value: String, currency: String, callback:((Any?, Double?) -> Void)?)

public func getSteemAndSbdPrices(currency: String, callback:((Any?, NSDictionary?) -> Void)?)

public func paginateAccountHistory(name: String, steps: Int, pageSteps: Int, maxLimit: Int?, completion:((Any?, Any?) -> Void)?)

calculateSteempower Only needs the vestingShares of a user account, it fetches the global properties itself. It returns always a callback(error, steempower)

getVotingPower Needs the voting power of an user and the last voting time (both can be found via getAccounts), it calculates the currently voting power percentage out of it.

createCommentPermlink Can be used to create comment permlinks (e.g re-moonrise-hello-{timestamp})

reputation Converts the reputation into an readable state

validAccountName Checks if an account name is valid

convertToCurrency Converts an SBD / STEEM value to it's currency value (eg. "1 Steem" to 3 Euro)

getSteemAndSbdPrices Fetches the latest SBD & STEEM prices from coinmarketcap

paginateAccountHistory Paginate through an account transaction history

Roadmap

  • V1.0:
    • Sign Actions

Known Errors

["error-code": 500, "error": "internal server error"]

This basically means your data is wrong or your action is invalid (e.g voting a post you already have voted)

Contribution

If you like the project feel free to fork it. Please create Pull Requests for updates!