Google API How to connect to receive values from spreadsheet

Question

I embarked on this project thinking it would be simple. Many hours later I\'m realizing the Google API is a bit of a labyrinth with multiple APIs and libraries. I really nee

Answer 1

This answer is meant to be an add-on to jrgd`s answer, and I post it here, as an answer, because it contains code.

The connection problems themselves hung me up. Here is what I had to do to resolve that: Trying to Get Google accessToken . Also, the spreadsheet has to be shared with the Google-generated e-mail that you find in your code.

Also, jrgd, to answer your question about that Request object: it doesn't exist with the Google Spreadsheet API; /* I couldn't find it when I used Composer to download the library */ Instead, I ended up doing what GingerDog did:

$serviceRequest = new Google\Spreadsheet\DefaultServiceRequest($accessToken); Google\Spreadsheet\ServiceRequestFactory::setInstance($serviceRequest);

There is also a significant probability of the code throwing an Exception when using getSpreadsheets(), due to an HTTP error code being returned that is higher than 300 . The SpreadsheetService class has that method (here is its code: /** * Fetches a list of spreadhsheet spreadsheets from google drive. * * @return \Google\Spreadsheet\SpreadsheetFeed */ public function getSpreadsheets() { return new SpreadsheetFeed( ServiceRequestFactory::getInstance()->get('feeds/spreadsheets/private/full') ); } Notice that there is another class that is "doing the dirty work here": the DefaultServiceRequest class. Here is the get() that is being used:

/**
     * Perform a get request
     * 
     * @param string $url
     * 
     * @return string
     */
    public function get($url)
    {
        $ch = $this->initRequest($url);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
        return $this->execute($ch);
    }
    /**
     * Executes the api request.
     * 
     * @return string the xml response
     *
     * @throws \Google\Spreadsheet\Exception If the was a problem with the request.
     *                                       Will throw an exception if the response
     *                                       code is 300 or greater
     *                                       
     * @throws \Google\Spreadsheet\UnauthorizedException
     */
    protected function execute($ch)
    {
        $ret = curl_exec($ch);

        $info = curl_getinfo($ch);
        $httpCode = (int)$info['http_code'];

        if($httpCode > 299) {
            if($httpCode === 401) {
                throw new UnauthorizedException('Access token is invalid', 401);
            } else {
                throw new Exception('Error in Google Request', $info['http_code']);
            }
        }

        return $ret;
    }

Notice that the function, from its innermost helper, has a chance to give back an http_code that will cause the code to throw an exception. Not good for business.

The Solution

The way I remedied that is to change the following line of code: $spreadsheetFeed = $spreadsheetService->getSpreadsheets();

to this while-loop:

/* my way of "making" it work; // I just getSpreadsheets() until there stops being an exception thrown */
    $googleException = new Exception();
    while ($googleException != null)
    {
        try
        {
            $spreadsheetFeed = $spreadsheetService->getSpreadsheets();  # This line randomly throws exception, for some reason. 
            $googleException = null;
        }
        catch (Exception $e)
        {
            $googleException = $e;
        }
    }
    //var_dump($spreadsheetFeed->getArrayCopy());   // test line