How to post Image on Instagram using C#

Unfortunately, the instagram API doesn't allow you to upload images. From Instagram's API documentation:

At this time, uploading via the API is not possible. We made a conscious choice not to add this for the following reasons:

Instagram is about your life on the go – we hope to encourage photos from within the app.

We want to fight spam & low quality photos. Once we allow uploading from other sources, it's harder to control what comes into the Instagram ecosystem. All this being said, we're working on ways to ensure users have a consistent and high-quality experience on our platform.