I want to encode the following string in Base64Url in Flutter and decode it in on a Dart server. "username:password" How do I do that? And how do I do it in Base64?

https://web.archive.org/web/20110422225659/https://en.wikipedia.org/wiki/Base64#URL_applications talks about base64Url - Decode a modified Base64 for URL variant exists, where no padding '=' wi...

What is the difference between Base64 and Base64url that I see in things like JSON web tokens?

The Scenario: I'm reading about JSON web tokens at this link (https://medium.com/vandium-software/5-easy-steps-to-understanding-json-web-tokens-jwt-1164c0adfcec). It outline how to create a JSON w...

Base64 encode can be achieved by $ echo Some_data_to_be_converted | base64 U29tZV9kYXRhX3RvX2JlIF9jb252ZXJ0ZWQK And Base64 decode can be achieved by $ echo U29tZV9kYXRhX3RvX2JlIF9jb252ZXJ0ZWQK...

So, I have done some research on this on the Net and here on StackOverflow, and I have tried many, multiple suggestions that I have found. The problem is that I am logging into one of our Oauth2 se...