{"id":53,"date":"2009-08-02T18:39:35","date_gmt":"2009-08-02T18:39:35","guid":{"rendered":"http:\/\/sunny.byethost18.com\/WP\/?p=53"},"modified":"2009-08-02T18:39:35","modified_gmt":"2009-08-02T18:39:35","slug":"twitpic-api-library-twipli-2","status":"publish","type":"post","link":"https:\/\/inullable.in\/blog\/?p=53","title":{"rendered":"TwitPic API Library : TwiPLi"},"content":{"rendered":"

On last weekend, I have been playing around with <\/font>TwitPic API<\/font><\/a>. <\/font> <\/p>\n

Ok! The thing is that <\/font>TwitPic API<\/font><\/a> is not that much complex, since all <\/font>TwitPic<\/font><\/a> provides is that it lets you post your funny\/sad looking pictures or any picture you want to post on it, so it can be shared on twitter or any other site. Its pretty much easy to implement all you have to know is how to create a web request, parse a XML, and post Multipart\/form-data. You can get complete reference to TwitPic API here: <\/font>http:\/\/twitpic.com\/api.do<\/font><\/a> <\/font> <\/p>\n

Since, hosting pictures is a part of some web applications that, I write and will write in future. So, I wrote my own library in .NET framework, that I can use to post pictures on TwitPic. As usual being a lazy guy and considering that code and methods involved are straight forward. I\u2019m giving link to the CodePlex hosted project page, where you can download the library and complete source code (MS-Pl Licensed).<\/strong> <\/font> <\/p>\n

I have documented code at many places, wherever I thought was needed. So, there is very small possibility that you would say the \u201cHoly F Word\u201d while going through it, still if you may want to say so. \ud83d\ude1b <\/font> <\/p>\n

CodePlex Project Link<\/strong> http:\/\/twipli.codeplex.com<\/font><\/a> <\/font> <\/p>\n

Here I would share the basic process, you need to follow to post your image file on TwitPic.com <\/font> <\/p>\n

TwitPic.com provides 2 methods: UploadAndPost and Upload <\/font> <\/p>\n

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METHOD: <\/strong>UploadAndPost <\/font> <\/p>\n

http:\/\/twitpic.com\/api\/uploadAndPost<\/font><\/b><\/a> <\/font> <\/p>\n

Use this method to upload an image to TwitPic and to send it as a status update to Twitter. <\/font> <\/p>\n

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METHOD: <\/strong>Upload <\/font> <\/p>\n

http:\/\/twitpic.com\/api\/upload<\/font><\/b><\/a> <\/font> <\/p>\n

Use this method if you just want to upload a photo to TwitPic. <\/font> <\/p>\n

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response to both method is in XML format. <\/font> <\/p>\n

Here is an example: <\/font> <\/p>\n

Fields to post in Method: UploadAndPost
<\/strong>(post data should be formatted as multipart\/form-data<\/strong>): <\/font> <\/p>\n

– media (required) – Binary image data
– username (required) – Twitter username
– password (required) – Twitter password
– message (optional) – Message to post to twitter. The URL of the image is automatically added.<\/font><\/p>\n

Response XML:<\/font><\/p>\n

<?<\/span>xml<\/span> version<\/span>=\"1.0\"<\/span> encoding<\/span>=\"UTF-8\"<\/span>?><\/span>\n\n<<\/span>rsp<\/span> status<\/span>=\"ok\"<\/span>><\/span> <<\/span>statusid<\/span>><\/span>1111<\/<\/span>statusid<\/span>><\/span>\n\n<<\/span>userid<\/span>><\/span>11111<\/<\/span>userid<\/span>><\/span>\n\n<<\/span>mediaid<\/span>><\/span>abc123<\/<\/span>mediaid<\/span>><\/span>\n\n<<\/span>mediaurl<\/span>><\/span>http:\/\/twitpic.com\/abc123<\/<\/span>mediaurl<\/span>><\/span>\n\n<\/<\/span>rsp<\/span>><\/span>\n<\/pre>\n
<\/font> <\/p>\n
Here is the abstract sequence in C# that is needed to do above:<\/font><\/p>\n
Let the variable Username<\/strong> and Password<\/strong> store the Twitter account credentials and ImagePath <\/strong>and Message <\/strong>are the path to image and Message to be posted.<\/font><\/p>\n
The first step would be to prepare the post data in Multipart\/form-data format<\/font><\/p>\n
string<\/span> boundary = Guid.NewGuid().ToString();\n\nstring<\/span> requestUrl = \"http:\/\/twitpic.com\/api\/uploadAndPost\"<\/span>;\n\nstring<\/span> encoding = \"iso-8859-1\"<\/span>;\nstring<\/span> header = string<\/span>.Format(\"--{0}\"<\/span>, boundary);\nstring<\/span> footer = string<\/span>.Format(\"--{0}--\"<\/span>, boundary);\nStringBuilder contents = new<\/span> StringBuilder();\ncontents.AppendLine(header);\n\n\/\/Add image to POST content string<\/span>\n\n \/\/determing file content-type                <\/span>\nstring<\/span> fileContentType = GetFileContentType(filename); \/\/MIME type of image \/\/The filename of image<\/span>\nstring<\/span> fileHeader =\nString.Format(\"Content-Disposition: file; name=\"{0}\"; filename=\"{1}\"\"<\/span>, \"media\"<\/span>, filename);\nstring<\/span> fileData = Encoding.GetEncoding(encoding).GetString(binaryImageData);\n\ncontents.AppendLine(fileHeader);\ncontents.AppendLine(String.Format(\"Content-Type: {0}\"<\/span>, fileContentType));\ncontents.AppendLine();\ncontents.AppendLine(fileData);\n\n \/\/Add user field in POST string                  <\/span>\ncontents.AppendLine(header);\ncontents.AppendLine(String.Format(\"Content-Disposition: form-data; name=\"{0}\"\"<\/span>, \"username\"<\/span>));\ncontents.AppendLine();\ncontents.AppendLine(Username);\n\n\/\/Add Password in POST string                 <\/span>\ncontents.AppendLine(header);\ncontents.AppendLine(String.Format(\"Content-Disposition: form-data; name=\"{0}\"\"<\/span>, \"password\"<\/span>));\ncontents.AppendLine();\ncontents.AppendLine(Password);\n\n \/\/Add Message in Post string                <\/span>\nif<\/span> (!String.IsNullOrEmpty(Message))\n{\n                    contents.AppendLine(header);\n                    contents.AppendLine(String.Format(\"Content-Disposition: form-data; name=\"{0}\"\"<\/span>, \"message\"<\/span>));\n                    contents.AppendLine();\n                    contents.AppendLine(Message);\n}\n\ncontents.AppendLine(footer);\nencoding = \"iso-8859-1\"<\/span>;\nbyte<\/span>[] bytes = Encoding.GetEncoding(encoding).GetBytes(contents.ToString());<\/pre>\n