(Perl) Refresh Schwab OAuth2 Access Token

See more Schwab Examples

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux

use chilkat();

$success = 0;

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

# See Get Schwab OAuth2 Access Token 
# for sample code showing how to obtain a Schwab access token for desktop apps.

# This example assumes we previously obtained an OAuth2 access token for Schwab.

$jsonToken = chilkat::CkJsonObject->new();
$success = $jsonToken->LoadFile("qa_data/tokens/schwab-access-token.json");
if ($success != 1) {
    print "Failed to load schwab-access-token.json" . "\r\n";
    exit;
}

# The access token JSON looks something like this:

# {
#   "expires_in": 3600,
#   "x_refresh_token_expires_in": 8726400,
#   "refresh_token": "L011546037639r ... 3vR2DrbOmg0Sdagw",
#   "access_token": "eyJlbmMiOiJBMTI4Q0 ... oETJEMbeggg",
#   "token_type": "bearer"
# }

$oauth2 = chilkat::CkOAuth2->new();

$oauth2->put_TokenEndpoint("https://api.schwabapi.com/v1/oauth/token");

# Replace these with actual values.
$oauth2->put_ClientId("APP_KEY");
$oauth2->put_ClientSecret("APP_SECRET");
$oauth2->put_UseBasicAuth(1);

# Get the "refresh_token"
$oauth2->put_RefreshToken($jsonToken->stringOf("refresh_token"));

# Send the HTTP POST to refresh the access token..
$success = $oauth2->RefreshAccessToken();
if ($success == 0) {
    print $oauth2->lastErrorText() . "\r\n";
    exit;
}

# The response contains a new access token, but we must keep
# our existing refresh token for when we need to refresh again in the future.
$jsonToken->UpdateString("access_token",$oauth2->accessToken());

# 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(0);

$jsonToken->EmitSb($sbJson);
$sbJson->WriteFile("qa_data/tokens/schwab-access-token.json","utf-8",0);

print "OAuth2 token refreshed!" . "\r\n";
print "New Access Token = " . $oauth2->accessToken() . "\r\n";