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Objective-C Web API Examples

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(Objective-C) Twitter Tweet with an Image

Example to post a status update with an associated image/photo (or video).

Chilkat Objective-C Library Downloads

MAC OS X (Cocoa) Libs

iOS Libs

#import <CkoJsonObject.h>
#import <CkoRest.h>
#import <CkoOAuth1.h>
#import <NSString.h>

// This example 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..
CkoJsonObject *json = [[CkoJsonObject alloc] init];
BOOL success = [json LoadFile: @"qa_data/tokens/twitter.json"];

CkoRest *rest = [[CkoRest alloc] init];
CkoOAuth1 *oauth1 = [[CkoOAuth1 alloc] init];

oauth1.ConsumerKey = @"TWITTER_CONSUMER_KEY";
oauth1.ConsumerSecret = @"TWITTER_CONSUMER_SECRET";
oauth1.Token = [json StringOf: @"oauth_token"];
oauth1.TokenSecret = [json StringOf: @"oauth_token_secret"];
oauth1.SignatureMethod = @"HMAC-SHA1";
[oauth1 GenNonce: [NSNumber numberWithInt: 16]];

[rest SetAuthOAuth1: oauth1 useQueryParams: NO];

BOOL bAutoReconnect = YES;
success = [rest Connect: @"api.twitter.com" port: [NSNumber numberWithInt: 443] tls: YES autoReconnect: bAutoReconnect];
if (success != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

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

NSString *tweetContent = @"This is a test tweet with an image.";

// Send a tweet...
[rest ClearAllQueryParams];
[rest AddQueryParam: @"status" value: tweetContent];

// Add list of media_ids to associate with the Tweet. 
// You may include up to 4 photos or 1 animated GIF or 1 video in a Tweet.
// The image needs to have been previously uploaded.  The upload response gave us
// the media ID we'll use to associate this tweet with the image (or video)
// See Twitter Upload Media for sample code.
// This example will add just a single image/photo.
[rest AddQueryParam: @"media_ids" value: @"793137045996646400"];

NSString *resp = [rest FullRequestFormUrlEncoded: @"POST" uriPath: @"/1.1/statuses/update.json"];
if (rest.LastMethodSuccess != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

CkoJsonObject *jsonResponse = [[CkoJsonObject alloc] init];
jsonResponse.EmitCompact = NO;
[jsonResponse Load: resp];

if ([rest.ResponseStatusCode intValue] != 200) {
    NSLog(@"%@",[jsonResponse Emit]);
    return;
}

// Show the successful response:
NSLog(@"%@",[jsonResponse Emit]);
NSLog(@"%@",@"Success.");

// A successful JSON response looks like this:

// 	{
// 	  "created_at": "Mon Oct 31 20:25:17 +0000 2016",
// 	  "id": 793187104528347136,
// 	  "id_str": "793187104528347136",
// 	  "text": "This is a test tweet with an image. https:\/\/t.co\/4mcCL0k36x",
// 	  "truncated": false,
// 	  "entities": {
// 	    "hashtags": [
// 	    ],
// 	    "symbols": [
// 	    ],
// 	    "user_mentions": [
// 	    ],
// 	    "urls": [
// 	    ],
// 	    "media": [
// 	      {
// 	        "id": 793137045996646400,
// 	        "id_str": "793137045996646400",
// 	        "indices": [
// 	          36,
// 	          59
// 	        ],
// 	        "media_url": "http:\/\/pbs.twimg.com\/media\/CwHJ8OzVMAAojGR.jpg",
// 	        "media_url_https": "https:\/\/pbs.twimg.com\/media\/CwHJ8OzVMAAojGR.jpg",
// 	        "url": "https:\/\/t.co\/4mcCL0k36x",
// 	        "display_url": "pic.twitter.com\/4mcCL0k36x",
// 	        "expanded_url": "https:\/\/twitter.com\/chilkatsoft\/status\/793187104528347136\/photo\/1",
// 	        "type": "photo",
// 	        "sizes": {
// 	          "large": {
// 	            "w": 120,
// 	            "h": 120,
// 	            "resize": "fit"
// 	          },
// 	          "medium": {
// 	            "w": 120,
// 	            "h": 120,
// 	            "resize": "fit"
// 	          },
// 	          "thumb": {
// 	            "w": 120,
// 	            "h": 120,
// 	            "resize": "crop"
// 	          },
// 	          "small": {
// 	            "w": 120,
// 	            "h": 120,
// 	            "resize": "fit"
// 	          }
// 	        }
// 	      }
// 	    ]
// 	  },
// 	  "extended_entities": {
// 	    "media": [
// 	      {
// 	        "id": 793137045996646400,
// 	        "id_str": "793137045996646400",
// 	        "indices": [
// 	          36,
// 	          59
// 	        ],
// 	        "media_url": "http:\/\/pbs.twimg.com\/media\/CwHJ8OzVMAAojGR.jpg",
// 	        "media_url_https": "https:\/\/pbs.twimg.com\/media\/CwHJ8OzVMAAojGR.jpg",
// 	        "url": "https:\/\/t.co\/4mcCL0k36x",
// 	        "display_url": "pic.twitter.com\/4mcCL0k36x",
// 	        "expanded_url": "https:\/\/twitter.com\/chilkatsoft\/status\/793187104528347136\/photo\/1",
// 	        "type": "photo",
// 	        "sizes": {
// 	          "large": {
// 	            "w": 120,
// 	            "h": 120,
// 	            "resize": "fit"
// 	          },
// 	          "medium": {
// 	            "w": 120,
// 	            "h": 120,
// 	            "resize": "fit"
// 	          },
// 	          "thumb": {
// 	            "w": 120,
// 	            "h": 120,
// 	            "resize": "crop"
// 	          },
// 	          "small": {
// 	            "w": 120,
// 	            "h": 120,
// 	            "resize": "fit"
// 	          }
// 	        }
// 	      }
// 	    ]
// 	  },
// 	  "source": "\u003ca href=\"https:\/\/www.chilkatsoft.com\/\" rel=\"nofollow\"\u003eChilkatTestApp\u003c\/a\u003e",
// 	  "in_reply_to_status_id": null,
// 	  "in_reply_to_status_id_str": null,
// 	  "in_reply_to_user_id": null,
// 	  "in_reply_to_user_id_str": null,
// 	  "in_reply_to_screen_name": null,
// 	  "user": {
// 	    "id": 85647455,
// 	    "id_str": "85647455",
// 	    "name": "Chilkat Software",
// 	    "screen_name": "chilkatsoft",
// 	    "location": "",
// 	    "description": "",
// 	    "url": "https:\/\/t.co\/hSTR4sOuis",
// 	    "entities": {
// 	      "url": {
// 	        "urls": [
// 	          {
// 	            "url": "https:\/\/t.co\/hSTR4sOuis",
// 	            "expanded_url": "http:\/\/www.chilkatsoft.com",
// 	            "display_url": "chilkatsoft.com",
// 	            "indices": [
// 	              0,
// 	              23
// 	            ]
// 	          }
// 	        ]
// 	      },
// 	      "description": {
// 	        "urls": [
// 	        ]
// 	      }
// 	    },
// 	    "protected": false,
// 	    "followers_count": 41,
// 	    "friends_count": 0,
// 	    "listed_count": 4,
// 	    "created_at": "Tue Oct 27 19:56:13 +0000 2009",
// 	    "favourites_count": 0,
// 	    "utc_offset": null,
// 	    "time_zone": null,
// 	    "geo_enabled": false,
// 	    "verified": false,
// 	    "statuses_count": 16,
// 	    "lang": "en",
// 	    "contributors_enabled": false,
// 	    "is_translator": false,
// 	    "is_translation_enabled": false,
// 	    "profile_background_color": "C0DEED",
// 	    "profile_background_image_url": "http:\/\/abs.twimg.com\/images\/themes\/theme1\/bg.png",
// 	    "profile_background_image_url_https": "https:\/\/abs.twimg.com\/images\/themes\/theme1\/bg.png",
// 	    "profile_background_tile": false,
// 	    "profile_image_url": "http:\/\/pbs.twimg.com\/profile_images\/785893001012744195\/clLweDSg_normal.jpg",
// 	    "profile_image_url_https": "https:\/\/pbs.twimg.com\/profile_images\/785893001012744195\/clLweDSg_normal.jpg",
// 	    "profile_link_color": "0084B4",
// 	    "profile_sidebar_border_color": "C0DEED",
// 	    "profile_sidebar_fill_color": "DDEEF6",
// 	    "profile_text_color": "333333",
// 	    "profile_use_background_image": true,
// 	    "has_extended_profile": false,
// 	    "default_profile": true,
// 	    "default_profile_image": false,
// 	    "following": false,
// 	    "follow_request_sent": false,
// 	    "notifications": false,
// 	    "translator_type": "none"
// 	  },
// 	  "geo": null,
// 	  "coordinates": null,
// 	  "place": null,
// 	  "contributors": null,
// 	  "is_quote_status": false,
// 	  "retweet_count": 0,
// 	  "favorite_count": 0,
// 	  "favorited": false,
// 	  "retweeted": false,
// 	  "possibly_sensitive": false,
// 	  "lang": "en"
// 	}
// 
 

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