Google Client API - Missing require parameter: redirect_uri

Question

So I followed the quickstart guide and decided to break it into a class called scheduler. I am working on the the authentication code, but I keep getting this: "Error 400 (OAuth 2 Error) Error Invalid Request Missing required Parameter: redirect_uri".

class scheduler{

//The Google Client object
private $googleClient;

//the Google Calendar Service ojbect
private $calendarService;

/*
*   Google Calendar Setup
*
*   This creates a Google Client object so that you may create a Google Calendar object.
*
*/
function __construct(){
    //set the application name
    define("APPLICATION_NAME", "Web client 1");
    //
    define("CREDENTIALS_PATH", "~/scheduler/credentials.json");
    //
    define("CLIENT_SECRET_PATH", __DIR__ . "/scheduler/client_secret.json");
    //
    define("SCOPES", implode(" ", array(Google_Service_Calendar::CALENDAR_READONLY)));

    /*if(php_sapi_name() != "cli"){
        throw new Exception("This application must be run on the command line");    
    }*/

    //create the google client
    $this->googleClient = new Google_Client();

    //setup the client
    $this->googleClient->setApplicationName(APPLICATION_NAME);
    $this->googleClient->setDeveloperKey("AIzaSyBmJLvNdMYuFhVpWalkUdyStrEBoVEayYM");
    $this->googleClient->setScopes(SCOPES);
    $this->googleClient->setAuthConfigFile(CLIENT_SECRET_PATH);
    $this->googleClient->setAccessType("offline");

    //get the credentials file path
    $credentialsPath = expandHomeDirectory(CREDENTIALS_PATH);

    //if the file exists
    if(file_exists($credentialsPath)){

        //get the credentials from the file
        $accessToken = file_get_contents($credentialsPath); 

    }//if it does not
    else{

        //request the authorization url
        $authURL = $this->googleClient->createAuthUrl();
        //print the authorization ulr
        echo "<a href=\"$authURL\">Press Me</a><br /><br />";

        //prompt the user to enter the auth code
        print("Enter authentication code: ");

        //
        $authCode = trim(fgets(STDIN));

        //exchange authorization for an access token
        $accessToken = $this->googleClient->authenticate($authCode);

        //store credentials to disk
        if(!file_exists(dirname($credentialsPath))){
            mkdir(dirname($credentialsPath), 0700, true);   
        }

        //put the contents into the credential files
        file_put_contents($credentialsPath, $accessToken);
    }

    $this->googleClient->setAccessToken($accessToken);

    //refresh token if its expired
    if($this->googleClient->isAccessTokenExpired()){
        $this->googleClient->refreshToken($client->getRefreshToken());

        file_put_contents($credentialsPath, $this->googleClient->getAccessToken()); 
    }
}

I found the cause of the problem with no solution in sight. Under my Google Developer Console I tried putting "http://localhost/" into the Authorized redirect URIs section. It gives me this error "Sorry, there’s a problem. If you entered information, check it and try again. Otherwise, the problem might clear up on its own, so check back later." Is there a way to make Google Developer Console to accept the redirect uri of a localhost server?

Answer 1

Just use method setRedirectUri($absoluteUrl) on a client object:

$client = new Google_Client();
$client->setRedirectUri('http://' . $_SERVER['HTTP_HOST'] . '/oauth2callback.php');

via:

https://developers.google.com/api-client-library/php/auth/web-app