Upload imgur image process with authentication

gistfile1.txt

Get Access token with client _id ------------

method get

https://api.imgur.com/oauth2/authorize?client_id=Your_Client_ID&response_type=token&state=APPLICATION_STATE

response get access token and refresh token

https://imgur.com/?state=APPLICATION_STATE#access_token=ACCESS_TOKEN&expires_in=315360000&token_type=bearer&refresh_token=REFRESH_TOKEN&account_username=USERNAME&account_id=ACCOUNTID 

get new access token with refresh token--------
method post
https://api.imgur.com/oauth2/token
data
{
    "refresh_token": "REFRESH_TOKEN",
    "client_id":"CLIENT ID",
    "client_secret":"CLIENT_SECRET",
    "grant_type":"refresh_token"
}

response
{
    "access_token": "ACCESS_TOKEN",
    "expires_in": 315360000,
    "token_type": "bearer",
    "scope": null,
    "refresh_token": "REFRESH_TOKEN",
    "account_id": ACCOUNTID ,
    "account_username": "USERNAME"
}

upload image -------

headers
Authorization:Bearer ACCESS_TOKEN

data
image: base64 data without "data:image/png;base64/url/binary_file"
name:abcd
title:holla
type:png