Delphi DLL
Delphi DLL
Twitter Tweet with an Image
Example to post a status update with an associated image/photo (or video).This example is deprecated and no longer valid.
Chilkat Delphi DLL Downloads
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, OAuth1, Rest, JsonObject;
...
procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
json: HCkJsonObject;
rest: HCkRest;
oauth1: HCkOAuth1;
bAutoReconnect: Boolean;
tweetContent: PWideChar;
resp: PWideChar;
jsonResponse: HCkJsonObject;
begin
success := False;
// 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..
json := CkJsonObject_Create();
success := CkJsonObject_LoadFile(json,'qa_data/tokens/twitter.json');
rest := CkRest_Create();
oauth1 := CkOAuth1_Create();
CkOAuth1_putConsumerKey(oauth1,'TWITTER_CONSUMER_KEY');
CkOAuth1_putConsumerSecret(oauth1,'TWITTER_CONSUMER_SECRET');
CkOAuth1_putToken(oauth1,CkJsonObject__stringOf(json,'oauth_token'));
CkOAuth1_putTokenSecret(oauth1,CkJsonObject__stringOf(json,'oauth_token_secret'));
CkOAuth1_putSignatureMethod(oauth1,'HMAC-SHA1');
CkOAuth1_GenNonce(oauth1,16);
CkRest_SetAuthOAuth1(rest,oauth1,False);
bAutoReconnect := True;
success := CkRest_Connect(rest,'api.twitter.com',443,True,bAutoReconnect);
if (success <> True) then
begin
Memo1.Lines.Add(CkRest__lastErrorText(rest));
Exit;
end;
// This ends the initial setup...
// ----------------------------------------------------------------------
tweetContent := 'This is a test tweet with an image.';
// Send a tweet...
CkRest_ClearAllQueryParams(rest);
CkRest_AddQueryParam(rest,'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.
CkRest_AddQueryParam(rest,'media_ids','793137045996646400');
resp := CkRest__fullRequestFormUrlEncoded(rest,'POST','/1.1/statuses/update.json');
if (CkRest_getLastMethodSuccess(rest) <> True) then
begin
Memo1.Lines.Add(CkRest__lastErrorText(rest));
Exit;
end;
jsonResponse := CkJsonObject_Create();
CkJsonObject_putEmitCompact(jsonResponse,False);
CkJsonObject_Load(jsonResponse,resp);
if (CkRest_getResponseStatusCode(rest) <> 200) then
begin
Memo1.Lines.Add(CkJsonObject__emit(jsonResponse));
Exit;
end;
// Show the successful response:
Memo1.Lines.Add(CkJsonObject__emit(jsonResponse));
Memo1.Lines.Add('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"
// }
//
CkJsonObject_Dispose(json);
CkRest_Dispose(rest);
CkOAuth1_Dispose(oauth1);
CkJsonObject_Dispose(jsonResponse);
end;