(Ruby) Okta: Refresh Access Token with the Auth Code Flow

Demonstrates how to refresh a token that was obtained using the authorization code flow.

For more information, see https://developer.okta.com/docs/guides/implement-auth-code-pkce/use-flow/

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

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

# See Get Okta Access Token using Authorization Code Flow with PKCE 
# for sample code showing how to obtain an Okta access token using the authorization code flow for native apps (with PKCE).

jsonToken = Chilkat::CkJsonObject.new()
success = jsonToken.LoadFile("qa_data/tokens/okta.json")
if (success != true)
    print "Failed to load myob.json" + "\n";
    exit
end

oauth2 = Chilkat::CkOAuth2.new()

oauth2.put_TokenEndpoint("https://{yourOktaDomain}/oauth2/default/v1/token")

# Replace these with actual values.
oauth2.put_ClientId("OKTA_CLIENT_ID")
oauth2.put_ClientSecret("OKTA_CLIENT_SECRET")

# Get the "refresh_token"
oauth2.put_RefreshToken(jsonToken.stringOf("refresh_token"))

# Send the HTTP POST to refresh the access token..
oauth2.put_VerboseLogging(true)
success = oauth2.RefreshAccessToken()
if (success != true)
    print oauth2.lastErrorText() + "\n";
    exit
end

# Load the access token response into the json object 
jsonToken.Load(oauth2.accessTokenResponse())

# 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.
sbJson = Chilkat::CkStringBuilder.new()
jsonToken.put_EmitCompact(false)
jsonToken.EmitSb(sbJson)
sbJson.WriteFile("qa_data/tokens/okta.json","utf-8",false)

print "OAuth2 authorization granted!" + "\n";
print "New Access Token = " + oauth2.accessToken() + "\n";