(Swift 3,4,5...) Emoji Tweet

Demonstrates posting a status update that includes an emoji character.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // This requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // ----------------------------------------------------------------------
    // This initial setup, which involves setting the OAuth1 properties and connecting
    // to api.twitter.com, is only required once at the beginning.  Once connected, the same
    // object instance may be re-used, and if necessary, it will automatically reconnect
    // as needed.

    // Assume we've previously obtained an access token and saved it to a JSON file..
    let json = CkoJsonObject()!
    var success: Bool = json.loadFile("qa_data/tokens/twitter.json")

    let rest = CkoRest()!
    let oauth1 = CkoOAuth1()!

    oauth1.consumerKey = "TWITTER_CONSUMER_KEY"
    oauth1.consumerSecret = "TWITTER_CONSUMER_SECRET"
    oauth1.token = json.string(of: "oauth_token")
    oauth1.tokenSecret = json.string(of: "oauth_token_secret")
    oauth1.signatureMethod = "HMAC-SHA1"
    oauth1.genNonce(16)

    rest.setAuthOAuth1(oauth1, useQueryParams: false)

    var bAutoReconnect: Bool = true
    success = rest.connect("api.twitter.com", port: 443, tls: true, autoReconnect: bAutoReconnect)
    if success != true {
        print("\(rest.lastErrorText!)")
        return
    }

    // This ends the initial setup...
    // ----------------------------------------------------------------------

    // For this example, I've pre-created a text file containing two emoji
    // characters (the "ghost" emoji, and a "face savouring delicious food" emoji).  
    // This text file was saved using the utf-8 encoding.

    // The utf-8 bytes for the ghost emoji are 0x9f 0x91 0xbb.  (Note: This is the utf-8
    // representation that does not use surrogate pairs.)
    // 
    // The utf-8 bytes for the "face savouring delicious food" emoji are \xF0\x9F\x98\x8B.

    let sbText = CkoStringBuilder()!
    sbText.loadFile("qa_data/txt/ghost_emoji.txt", charset: "utf-8")
    sbText.prepend("Test tweet using two emoji chars: ")

    // Send a tweet...
    rest.clearAllQueryParams()
    rest.addQueryParam("status", value: sbText.getAsString())
    var resp: String? = rest.fullRequestFormUrlEncoded("POST", uriPath: "/1.1/statuses/update.json")
    if rest.lastMethodSuccess != true {
        print("\(rest.lastErrorText!)")
        return
    }

    let jsonResponse = CkoJsonObject()!
    jsonResponse.emitCompact = false
    jsonResponse.load(resp)

    if rest.responseStatusCode.intValue != 200 {
        print("\(jsonResponse.emit()!)")
        return
    }

    // Show the successful response:
    print("\(jsonResponse.emit()!)")
    print("Success.")

}