How do I upload a salesforce file TO REST API?

How do I upload a salesforce file TO REST API?

Example:

1. Step 1: Create a Content Version.
2. Step 2: Fetch the Content Document Id from Content Version.
3. Step 3: Search with the content document id in Salesforce to display the created file.
4. Step 4: Assign the file to a record by using the content document link.

How do I transfer files from Salesforce to an external hard drive?

Following are the aspects you need to understand and focus while using HTTP Protocol from Client side is .

1. Construct the http class .
2. Convert the attachment into base 64 and MIME versions using salesforce utils class methods.
3. Create the connection and send the file .
4. Check the response which is optional .

How to call external REST API in Salesforce?

Basic information required to write Apex code to call external REST API from Salesforce Before any Visualforce page, Apex callout, or JavaScript code using XmlHttpRequest in an s-control or custom button can call an external site, that site must be registered in the Remote Site Settings page, or the call will fail.

How does a POST request in Salesforce apex work?

Before we look at the implementation in Apex, let’s try to understand how sending data (including file attachments) with a multipart/form-data HTTP POST request actually works. The short answer: All posted data, including the file attachments, are stored in the text body of the request in a certain way.

How to transfer files from Salesforce apex to another API?

This kind of request is the same request a HTTP Form would produce and is the most common way to transfer a file to another API. So we decided to write this blog post which will not only be helpful for our customers, but anyone who wants to send files from Salesforce Apex to another webservice. Salesforce is great for several reasons.

Can you send files from Salesforce to external webservice?

Secondly, Salesforce also allows developers to create entire applications on top of their platform with their programming language Apex. So you are having files stored inside Salesforce which you would like to send to an external webservice?