Salesforce apex to send image file to 3rd party using REST API

Salesforce apex to send image file to 3rd party using REST API //attObj is an Object of Attachment object for which values will be coming from Visualforce page. //Attachment attObj = new attachment(); public pagereference customsave(){ String fileName = attObj.name; Blob file_body = attObj.body; String targetURL = system.label.ImageUploadEndPointURL; //API End point URL String boundary = […]