Google 驱动器 REST API 的问题

Question

I am building an integration between Google and Salesforce, for this I am APEX. Due to the flow and the way Salesforce works, I have had to create a Service Account and log in using this.

I am now having an issue; I log in: all is well, I then make a second callout to try and get the 2 most recent created records in my Drive: I only receive 1 file - the PDF with the Welcome text and info on how to use the Drive...

So I did a bit of testing and found the following:

If I use this and Authenticate using OAuth 2.0 I don't get any issues and I am able to get all of the documents that I want to get.

If I get an Access Token and append it to this URL: https://www.googleapis.com/oauth2/v1/tokeninfo?access_token=xxxx I get a reply letting me know that my token is correct and that I have the correct scope needed (see below)

{
 "issued_to": "1234567890",
 "audience": "1234567890",
 "scope": "https://www.googleapis.com/auth/drive https://www.googleapis.com/auth/drive.appdata https://www.googleapis.com/auth/drive.file https://www.googleapis.com/auth/drive.metadata https://www.googleapis.com/auth/drive.metadata.readonly https://www.googleapis.com/auth/drive.photos.readonly https://www.googleapis.com/auth/drive.readonly https://www.googleapis.com/auth/drive.scripts",
 "expires_in": 3493,
 "access_type": "offline"
}

Does anyone have any ideas of what I could be doing wrong? I used a service account to be able to start the initial connection for whom I have activated "Enable Google Apps Domain-wide Delegation", I have also set as many permissions as possible to enable the user the ability to basically view and modify everything

--------Update--------

Code Snippets

Method to build callout:

public void getRecentImages(){
    Integration_Settings__c settings = Integration_Settings__c.getValues('Google APIs');

    String endpoint = settings.Endpoint_URL__c + '/drive/v3/files' +
        '?corpus=user' +
        '&orderBy=createdTime' +
        '&pageSize=2';

    Map<String, String> headers = new Map<String, String>();
    headers.put('Authorization', 'Bearer ' + accessToken);
    headers.put('Content-Type', 'application/json');
    headers.put('Charset', 'UTF-8');

    String method = 'GET';

    HttpResponse res = doCallout(endpoint, method, null, headers);

    System.debug(res.getBody());

    JSONParser parser = JSON.createParser(res.getBody());

    // New instance of GoogleFiles
    Google.GoogleFiles response;

    // Try/Catch
    try {
        // Parse JSON into response
        response = (Google.GoogleFiles)parser.readValueAs(Google.GoogleFiles.class);

        System.debug(response);
    } catch(Exception e){
        System.debug(e.getLineNumber() + ' - ' + e.getMessage());
    }
}

Method to do callout:

public HttpResponse doCallout(String endpoint, String method, String body, Map<String, String> headers){
    // Instataite new instance of Http
    Http h = new Http();

    // Instatiate new instace of HttpRequest
    HttpRequest req = new HttpRequest();

    // Set Endpoint URL
    req.setEndpoint(endpoint);

    // Set Method Type
    req.setMethod(method);

    // Set Body
    if(body != null)
        req.setBody(body);

    // If there are headers set Headers
    if(headers != null && headers.size() > 0)
        for(String s : headers.keySet())
            req.setHeader(s, headers.get(s));

    // Return HttpResponse
    return h.send(req);
}

--------Update 2--------

JSON that is returned in the Salesforce and PostMan callout:

{
  "kind": "drive#fileList",
  "files": [
    {
      "kind": "drive#file",
      "id": "0B_07cXloqOyRc3RhcnRlcl9maWxl",
      "name": "Getting started",
      "mimeType": "application/pdf"
    }
  ]
}

JSON that is returned from https://developers.google.com/drive/v3/reference/files/list:

{
  "kind": "drive#fileList",
  "nextPageToken": "xxxxxx",
  "files": [
    {
      "kind": "drive#file",
      "id": "xxxxxx",
      "name": "xxxxxx",
      "mimeType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
    },
    {
      "kind": "drive#file",
      "id": "xxxxxx",
      "name": "xxxxxx",
      "mimeType": "application/vnd.google-apps.folder"
    },
    {
      "kind": "drive#file",
      "id": "xxxxxx",
      "name": "xxxxxx",
      "mimeType": "application/vnd.google-apps.spreadsheet"
    },
    {
      "kind": "drive#file",
      "id": "0B34hDNHXoLmVTFZ1VXhzbHRkUmc",
      "name": "Osney Media - 00038156",
      "mimeType": "application/vnd.google-apps.folder"
    },
    {
      "kind": "drive#file",
      "id": "xxxxxx",
      "name": "xxxxxx",
      "mimeType": "application/vnd.google-apps.folder"
    },
    {
      "kind": "drive#file",
      "id": "xxxxxx",
      "name": "xxxxxx",
      "mimeType": "application/vnd.google-apps.folder"
    },
    {
      "kind": "drive#file",
      "id": "xxxxxx",
      "name": "xxxxxx",
      "mimeType": "application/vnd.google-apps.folder"
    },
    {
      "kind": "drive#file",
      "id": "xxxxxx",
      "name": "xxxxxx",
      "mimeType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
    },
    {
      "kind": "drive#file",
      "id": "xxxxxx",
      "name": "xxxxxx",
      "mimeType": "application/vnd.google-apps.folder"
    },
    {
      "kind": "drive#file",
      "id": "xxxxxx",
      "name": "xxxxxx",
      "mimeType": "application/vnd.google-apps.folder"
    },
    {
      "kind": "drive#file",
      "id": "xxxxxx",
      "name": "xxxxxx",
      "mimeType": "application/vnd.google-apps.folder"
    },
    ETC......
  ]
}

Answer 1

为了获得最最近创建的 2 个文档，您需要 &orderBy=createdTime%20desc。

如果没有 %20desc，您将获得创建的前 2 个文档。

顺便说一句，您可能希望在 &q=.... 中包含其他搜索参数，以过滤掉其他不需要的文件，例如仅列出在特定文件夹下创建或由特定用户拥有的那些，并且可能还 trashed%3Dfalse

Answer 2

修复是更新相关文件夹的共享规则以与服务帐户共享内容...这是一种愚蠢的方式，因为它应该具有组织范围的授权...但这就是生活。

Google 驱动器 REST API 的问题

Issues with Google Drive REST API

rest

authentication

google-drive-api

salesforce

apex