(VB.NET) Twitter Tweet with an Image

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

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

' 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..
Dim json As New Chilkat.JsonObject
Dim success As Boolean = json.LoadFile("qa_data/tokens/twitter.json")

Dim rest As New Chilkat.Rest
Dim oauth1 As New Chilkat.OAuth1

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(16)

rest.SetAuthOAuth1(oauth1,False)

Dim bAutoReconnect As Boolean = True
success = rest.Connect("api.twitter.com",443,True,bAutoReconnect)
If (success <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


' This ends the initial setup...
' ----------------------------------------------------------------------

Dim tweetContent As String = "This is a test tweet with an image."

' Send a tweet...
rest.ClearAllQueryParams()
rest.AddQueryParam("status",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","793137045996646400")

Dim resp As String = rest.FullRequestFormUrlEncoded("POST","/1.1/statuses/update.json")
If (rest.LastMethodSuccess <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


Dim jsonResponse As New Chilkat.JsonObject
jsonResponse.EmitCompact = False
jsonResponse.Load(resp)

If (rest.ResponseStatusCode <> 200) Then
    Debug.WriteLine(jsonResponse.Emit())
    Exit Sub
End If


' Show the successful response:
Debug.WriteLine(jsonResponse.Emit())
Debug.WriteLine("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"
' 	}
'