Lua Requires Chilkat v10.1.2+

X.com OAuth 2.0 Refresh Access Token

See more X Examples

Demonstrates how to get an X.com OAuth2 access token from a desktop application or script. Lua

local chilkat = require("chilkat")

-- This example requires the Chilkat API to have been previously unlocked.
-- See Global Unlock Sample for sample code.

local jsonToken = chilkat.JsonObject.new()
local success = jsonToken:load_file("qa_data/tokens/x.json")
if not success then
    print("Failed to load x.json")
    return
end

-- The access token JSON looks something like this:

-- {
--   "token_type": "bearer",
--   "expires_in": 7200,
--   "access_token": "VmNDLVZiYUZwejY5Mkx3RblFTmo3ek1leTRGclMuZFVOUTVUTWpNbVZKb1N5OjE3NDAxNjk4MDVxNTE6MToxOaF0OjE",
--   "scope": "block.read follows.read offline.access tweet.write block.write like.write like.read users.read tweet.read follows.write",
--   "refresh_token": "eThOWVVFSTRqdVp3QTFndGsxM2ZGZmFyNWVrU0phM1JKbGdrbGNWRGJzb1loOjE3NDAwMjk4MDUxNTI6MTowOnJ0OjE"
-- }

local oauth2 = chilkat.OAuth2.new()

oauth2.token_endpoint = "https://api.x.com/2/oauth2/token"

-- Replace this with your actual X.com OAuth2 Client ID and Client Secret
oauth2.client_id = "OAUTH2_CLIENT_ID"
oauth2.client_secret = "OAUTH2_CLIENT_SECRET"

-- Get the "refresh_token"
oauth2.refresh_token = jsonToken:string_of("refresh_token")

-- Send the HTTP POST to refresh the access token..
success = oauth2:refresh_access_token()
if not success then
    print(oauth2.last_error_text)
    return
end

-- Load the access token response into the json object
jsonToken:load(oauth2.access_token_response)

-- If an "expires_on" member does not exist, then add the JSON member by
-- getting the current system date/time and adding the "expires_in" seconds.
-- This way we'll know when the token expires.
if not jsonToken:has_member("expires_on") then
    local dtExpire = chilkat.DateTime.new()
    dtExpire:set_from_current_system_time()
    dtExpire:add_seconds(jsonToken:int_of("expires_in"))
    jsonToken:append_string("expires_on", dtExpire:get_as_unix_time_str(false))
end

-- Save the new JSON access token response to a file.
-- The access + refresh tokens contained in this JSON will be needed for the next refresh.
local sbJson = chilkat.StringBuilder.new()
jsonToken.emit_compact = false
jsonToken:emit_sb(sbJson)
sbJson:write_file("qa_data/tokens/x.json", "utf-8", false)

print("OAuth2 authorization granted!")
print("New Access Token = " .. oauth2.access_token)