Lua Requires Chilkat v10.1.2+

Goto Developer OAuth2 Access Token

See more OAuth2 Examples

Demonstrates how to get an access token for GotoMeeting, GotoConnect, etc. This example is for desktop apps only (not web apps). Lua

local chilkat = require("chilkat")

-- For more information about the OAuth2, see OAuth 2.0 Authorization Flow

local oauth2 = chilkat.OAuth2.new()

-- This should be the port in the localhost callback URL for your app.
-- The callback URL would look like "http://localhost:3017/" if the port number is 3017.
oauth2.listen_port = 3017

oauth2.authorization_endpoint = "https://api.getgo.com/oauth/v2/authorize"
oauth2.token_endpoint = "https://api.getgo.com/oauth/v2/token"

-- Replace these with actual values.
oauth2.client_id = "CONSUMER_KEY"
oauth2.client_secret = "CONSUMER_SECRET"

oauth2.use_basic_auth = true

oauth2.scope = ""

-- Begin the OAuth2 Authorization code flow.  This returns a URL that should be loaded in a browser.
local url = oauth2:start_auth()
if not oauth2.last_method_success then
    print(oauth2.last_error_text)
    return
end

print("url = " .. url)

-- Launch the default browser on the system and navigate to the url.
local success = oauth2:launch_browser(url)
if not success then
    print(oauth2.last_error_text)
    return
end

-- Wait for the user to approve or deny authorization in the browser.
local numMsWaited = 0
while (numMsWaited < 90000) and (oauth2.auth_flow_state < 3) do
    oauth2:sleep_ms(100)
    numMsWaited = numMsWaited + 100
end

-- If the browser does not respond within the specified time, AuthFlowState will be:
--
-- 1: Waiting for Redirect - The OAuth2 background thread is waiting for the browser's redirect request.
-- 2: Waiting for Final Response - The thread is awaiting the final access token response.
-- In either case, cancel the background task initiated by StartAuth.

if oauth2.auth_flow_state < 3 then
    oauth2:cancel()
    print("No response from the browser!")
    return
end

-- Check AuthFlowState to determine if authorization was granted, denied, or failed:
--
-- 3: Success - OAuth2 flow completed, the background thread exited, and the successful response is in AccessTokenResponse.
-- 4: Access Denied - OAuth2 flow completed, the background thread exited, and the error response is in AccessTokenResponse.
-- 5: Failure - OAuth2 flow failed before completion, the background thread exited, and error details are in FailureInfo.

if oauth2.auth_flow_state == 5 then
    print("OAuth2 failed to complete.")
    print(oauth2.failure_info)
    return
end

if oauth2.auth_flow_state == 4 then
    print("OAuth2 authorization was denied.")
    print(oauth2.access_token_response)
    return
end

if oauth2.auth_flow_state ~= 3 then
    print("Unexpected AuthFlowState:" .. oauth2.auth_flow_state)
    return
end

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

-- Get the full JSON response:
local json = chilkat.JsonObject.new()
json:load(oauth2.access_token_response)
json.emit_compact = false

-- The JSON response looks like this:

print(json:emit())

-- Save the JSON to a file for future requests.
local fac = chilkat.FileAccess.new()
fac:write_entire_text_file("qa_data/tokens/gotoMeeting.json", json:emit(), "utf-8", false)