I want to upload file to specific folder with google drive API curl

问题

I have uploaded file to google drive with curl API. But I want to upload file to specific folder. I have also tried with folder id in API url like: https://www.googleapis.com/upload/drive/v3/files/folder_id?uploadType=media

add_action('wpcf7_before_send_mail', 'save_application_form');

function save_application_form($WPCF7_ContactForm) {

    $wpcf7 = WPCF7_ContactForm :: get_current();
    $submission = WPCF7_Submission :: get_instance();
    if ($WPCF7_ContactForm->id == 8578) {
        if ($submission) {
            $submited = array();
            //$submited['title'] = $wpcf7->title();
            $submited['posted_data'] = $submission->get_posted_data();
            $uploaded_files = $submission->uploaded_files();
            $name = $submited['posted_data']["Name"];
            $position_test = $submited['posted_data']["Position"];
            $email = $submited['posted_data']["Email"];
            $phone = $submited['posted_data']["phone"];
            $message = $submited['posted_data']["Message"];
            $position = $submited['posted_data']["AttachYourCV"];

           // $test2 = $_FILES['AttachYourCV']['name'];

            $finfo = finfo_open(FILEINFO_MIME_TYPE);
            $cf7_file_field_name = 'AttachYourCV';

            $image_location = $uploaded_files[$cf7_file_field_name];
            $mime_type = finfo_file($finfo, $image_location);
            $token = GetRefreshedAccessToken('client_id', 'refresh_token', 'client_secret');
            $ch = curl_init();
            curl_setopt_array($ch, array(
                CURLOPT_URL => 'https://www.googleapis.com/upload/drive/v3/files?uploadType=media',
                CURLOPT_HTTPHEADER => array(
                    'Content-Type:' . $mime_type, // todo: runtime detection?
                    'Authorization: Bearer ' . $token
                ),
                CURLOPT_POST => 1,
                CURLOPT_POSTFIELDS => file_get_contents($image_location),
                CURLOPT_RETURNTRANSFER => 1
            ));
            $response = curl_exec($ch);
            $id = json_decode($response, TRUE);
            $get_id = $id['id'];

    curl_close($ch);
   if (isset($id['id'])) {
            $get_id = $id['id'];
            $post_fields = array();
            $folder_id = '1-9r8oVsAfV_iJmYh1cZYPMvE9Qhv8RLA';
            // remove extension  
            $this_file_name = explode('.', $position);

            // submit name field  
            $post_fields['name'] .= $this_file_name[0];
            $post_fields['parents'] = $folder_id[1];
            $ch2 = curl_init();
            curl_setopt_array($ch2, array(
                CURLOPT_URL => 'https://www.googleapis.com/drive/v3/files/' . $get_id,
                CURLOPT_HTTPHEADER => array(
                    'Content-Type:application/json', // todo: runtime detection?
                    'Authorization: Bearer ' . $token
                ),
                CURLOPT_POST => 1,
                CURLOPT_CUSTOMREQUEST => 'PATCH',
                CURLOPT_POSTFIELDS => json_encode($post_fields),
                CURLOPT_RETURNTRANSFER => 1
            ));
            $response = curl_exec($ch2);
            if ($response === false) {
                $output = 'ERROR: ' . curl_error($ch2);
            } else {
                $output = $response;
            }

            // close second request handler  
            curl_close($ch2);


        }
}

I have added another curl call but still didn't get file in folder. My file untitled issue solved with this way.

回答1:

Uploading files to google drive is a two part thing. (note it can be done as a single call but if you want to add the corect data its best to do it as two)

create Adds the initial meta data for the file. Name, media type, and location that being its parent directory.

Second the actual upload of the file itself.

Note: a file uploaded without first sending the metadata will create a dummy metadata most often with a title of the file being "unknown."

Create

When you do your create of the inertial metadata. You need to add the parents in this inital call the field is called parents[] you need to add the file id there. I cant help you do this as your not adding the code for it.

Upload

By default the file is uploaded into the root folder unless you add a parent folder id for the file.

If you check the documentation you will find the optional query parms

Try using &addParents=[folderId]

Example:

https://www.googleapis.com/upload/drive/v3/files?uploadType=media&addParents=1bpHmln41UI-CRe5idKvxrkIpGKh57T32

If you originally created the metadata for the file in the root directory and then try to upload the file to a different directory i suspect that the upload will create new metadata. These two calls need to be done the same. Your create should have parents set.

post body

$data = array("name" => "test.jpg", "parents" => array("123456"));                                                                    
$data_string = json_encode($data);                                                                                   

curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string); 

来源：https://stackoverflow.com/questions/55000012/i-want-to-upload-file-to-specific-folder-with-google-drive-api-curl