public void upload(String boundary,string filename,boolean file_body) {
String header = '--' + boundary + '\r\n' +
+ 'Content-Type: application/octet-stream\r\n'+
+ 'Content-Disposition: form-data; name="file";filename="' + filename +'"';
String headerEncoded = EncodingUtil.base64Encode(Blob.valueOf(header + '\r\n\r\n'));
String footer = '--' + boundary + '--';
while(headerEncoded.endsWith('='))
{
header += ' ';
headerEncoded = EncodingUtil.base64Encode(Blob.valueOf(header+'\r\n\r\n'));
}
String bodyEncoded = EncodingUtil.base64Encode(file_body);
Blob bodyBlob = null;
String last4Bytes = fileContent.substring(bodyEncoded.length()-4,bodyEncoded.length());
System.debug('----->last4Bytes: ' + last4Bytes );
if(last4Bytes.endsWith('==')) {
last4Bytes = last4Bytes.substring(0,2) + '0K';
bodyEncoded = bodyEncoded.substring(0,bodyEncoded.length()-4) + last4Bytes;
// We have appended the \r\n to the Blob, so leave footer as it is.
String footerEncoded = EncodingUtil.base64Encode(Blob.valueOf(footer));
bodyBlob = EncodingUtil.base64Decode(headerEncoded + bodyEncoded + footerEncoded);
} else if(last4Bytes.endsWith('=')) {
last4Bytes = last4Bytes.substring(0,3) + 'N';
bodyEncoded = bodyEncoded.substring(0,bodyEncoded.length()-4) + last4Bytes;
// We have appended the CR e.g. \r, still need to prepend the line feed to the footer
footer = '\n' + footer;
String footerEncoded = EncodingUtil.base64Encode(Blob.valueOf(footer));
bodyBlob = EncodingUtil.base64Decode(headerEncoded+bodyEncoded+footerEncoded);
} else {
// Prepend the CR LF to the footer
footer = '\r\n' + footer;
String footerEncoded = EncodingUtil.base64Encode(Blob.valueOf(footer));
bodyBlob = EncodingUtil.base64Decode(headerEncoded + bodyEncoded + footerEncoded);
}
System.debug('---> Body: ' + bodyBlob);
HTTPRequest req= new HttpRequest();
req.setendpoint('https://upload.box.com/api/2.0/files/content');
req.setmethod('POST');
req.setHeader('Authorization','Bearer ' + creds.Access_Token__c);
req.setHeader('Content-Type','multipart/form-data; boundary='+boundary);
req.setBodyAsBlob(bodyBlob);
System.debug(' res -----> :' + req.getBody());
Http p = new Http();
HttpResponse res= new HttpResponse();
res = p.send( Req );
}
Creadit to: http://blog.enree.co/2013/01/salesforce-apex-post-mutipartform-data.html
