{"id":5174,"date":"2021-07-01T22:52:51","date_gmt":"2021-07-01T22:52:51","guid":{"rendered":"https:\/\/pariswells.com\/blog\/?p=5174"},"modified":"2021-07-20T06:48:40","modified_gmt":"2021-07-20T06:48:40","slug":"google-drive-api-credential-json-and-token-json-access-token","status":"publish","type":"post","link":"https:\/\/pariswells.com\/blog\/research\/google-drive-api-credential-json-and-token-json-access-token","title":{"rendered":"Google Drive API \\ Credential.json and token.json ( Access Token )"},"content":{"rendered":"

Recently had to reverse engineer a Google Drive PHP API Script, and I thought I would document the process!<\/p>

Before you go down the below path , you will need to make sure you can push your project In Production <\/a>(Very Long winded )<\/p>

Testing mode for your project (even in Offline mode ) the below Refresh and Access Tokens with Expire every 7 days , if not use service account<\/a><\/p>

Credentials.JSON<\/strong><\/p>

Format of this file is like below<\/p>

{\"web\":{\"client_id\":\"xxxxxxxxxxxx\",\"project_id\":\"xxxxxxxxxxx\",\"auth_uri\":\"https:\/\/accounts.google.com\/o\/oauth2\/auth\",\"token_uri\":\"https:\/\/oauth2.googleapis.com\/token\",\"auth_provider_x509_cert_url\":\"https:\/\/www.googleapis.com\/oauth2\/v1\/certs\",\"client_secret\":\"xxxxxxxxxxxxxxxx\",\"redirect_uris\":[\"xxxxxxxxxxxxxx\",\"xxxxxxxxxx\"]}}<\/pre>
How do get this\u00a0<\/strong><\/span><\/p>
  1. Create a new google account for Google drive and enable that account for API access ( https:\/\/developers.google.com\/drive\/api\/v3\/enable-drive-api )<\/li>
  2. Create OAuth client ID and Select Web Application , add the authorize URLs and create\u00a0<\/li>
  3. Download Crdential.json of the client your just created
    \"\"<\/p><\/li><\/ol>
     <\/p>
    Token.JSON<\/strong><\/p>
    This is what they can your Access Token , Format of this file is like below<\/p>
    {\"access_token\":\"xxxxxxxxxxxxxxxxxx\",\"expires_in\":3599,\"scope\":\"https:\\\/\\\/www.googleapis.com\\\/auth\\\/drive.metadata.readonly\",\"token_type\":\"Bearer\",\"created\":1625147606,\"refresh_token\":\"xxxxxxxxxxxxxxxxxxxxxx\"}<\/pre>
    The script used the existing code here https:\/\/developers.google.com\/docs\/api\/quickstart\/php<\/a><\/p>
    You can see that the script is supposed to retrieve the token.json file when you give it the crdential file, however when I ran this I got\u00a0<\/p>
    Notice: Use<\/span> of<\/span> undefined<\/span> constant<\/span> STDIN<\/span> - assumed<\/span> 'STDIN<\/span>'<\/code><\/p>
    Warning<\/b>: Use of undefined constant STDIN – assumed ‘STDIN’ (this will throw an Error in a future version of PHP) in\u00a0

    Warning<\/b>: fgets() expects parameter 1 to be resource, string given in\u00a0on line\u00a03<\/b>

    Further research shows “only the\u00a0CLI<\/strong>\u00a0(command line) SAPI defines\u00a0    I\/O constants<\/a>\u00a0such as\u00a0STDIN<\/code>,\u00a0STDOUT<\/code>, and\u00a0STDERR<\/code><\/p>
    I didn’t have access to PHP Cli Easily , so I performed the below ( this was a big help but it pulled an Application Access Token instead of Web<\/a> )\u00a0<\/p>
    To get this you have to post stuff to google api and get a file<\/p>
    1. Open Up your Credential.json file and get your Client_id and Client Secret<\/li>
    2. Change the below to have your Client ID and correct redirect_uri and scope\u00a0<\/a>
      https:\/\/accounts.google.com\/o\/oauth2\/auth?client_id=XXXXXXXXXXX&redirect_uri=XXXXXXXXX&scope=https:\/\/www.googleapis.com\/auth\/drive.metadata.readonly&response_type=code&access_type=offline&prompt=consent<\/li>
    3. Post this into a browser that’s logged into the google account where you API is registered Go through the prompts to allow access , after this is done it will take you back to your redirect_uri and give you an Authorisation code per below<\/li>
    4. \"\"
      Format\u00a0https:\/\/redirect_uri\/?code=[Authorisaton Code]&scope=[SCOPE] ( Copy and save the Authorisation Code )\u00a0<\/li>
    5. Next you will need a Linux machine with Curl , you can install Linux on Windows using WSL<\/a><\/li>
    6. Open up the Linux terminal and paste the below

      curl \\<\/li><\/ol>
      –request POST \\
      –data “code=[Authorisaton Code]&client_id=[CLIENT ID]&client_secret=]CLIENT SECRET]&redirect_uri=[REDIRECT URI]&grant_type=authorization_code” \\
      https:\/\/accounts.google.com\/o\/oauth2\/token<\/p>
      \"\"<\/p>
      It will come back with an access_token and refresh_token<\/p>
      create a Json file with this in per below\u00a0<\/p>
      {“access_token”:”xxxxxxxxxxxxxxxxxx”,”expires_in”:3599,”scope”:”https:\\\/\\\/www.googleapis.com\\\/auth\\\/drive.metadata.readonly”,”token_type”:”Bearer”,”created”:1625147606,”refresh_token”:”xxxxxxxxxxxxxxxxxxxxxx”}<\/p>
      How to Create Permissions so files are public<\/a><\/p>
      Folder or File ID in fileId<\/p>
      Request Body<\/p>
      {
      “role”: “reader”,
      “type”: “user”
      }<\/p>","protected":false},"excerpt":{"rendered":"
      Recently had to reverse engineer a Google Drive PHP API Script, and I thought I would document the process!Before you go down the below path , you […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3518,3515,1590,3520,3519,3516,3523,698,3521,3517,3522],"class_list":["post-5174","post","type-post","status-publish","format-standard","hentry","category-research","tag-access-token","tag-access_token","tag-api","tag-credentials-json","tag-curl","tag-google-drive","tag-google-drive-api-access-token-without-cli","tag-php","tag-stdin","tag-token-json","tag-use-of-undefined-constant-stdin"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t