(SQL Server) List Files in Google Drive

Demonstrates how to list files in Google Drive.

See Google Drive Files list for more optional HTTP parameters.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 1

    -- It requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    -- This example uses a previously obtained access token having permission for the 
    -- Google Drive scope.

    DECLARE @gAuth int
    -- Use "Chilkat_9_5_0.AuthGoogle" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.AuthGoogle', @gAuth OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OASetProperty @gAuth, 'AccessToken', 'GOOGLE-DRIVE-ACCESS-TOKEN'

    DECLARE @rest int
    -- Use "Chilkat_9_5_0.Rest" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Rest', @rest OUT

    -- Connect using TLS.
    DECLARE @bAutoReconnect int
    SELECT @bAutoReconnect = 1
    EXEC sp_OAMethod @rest, 'Connect', @success OUT, 'www.googleapis.com', 443, 1, @bAutoReconnect

    -- Provide the authentication credentials (i.e. the access token)
    EXEC sp_OAMethod @rest, 'SetAuthGoogle', @success OUT, @gAuth

    -- Get 4 results per page.  (The default page size is 100, with a max of 1000.
    EXEC sp_OAMethod @rest, 'AddQueryParam', @success OUT, 'pageSize', '4'

    -- This uses the Google Drive V3 API... (not V2)
    DECLARE @jsonResponse nvarchar(4000)
    EXEC sp_OAMethod @rest, 'FullRequestNoBody', @jsonResponse OUT, 'GET', '/drive/v3/files'
    EXEC sp_OAGetProperty @rest, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @gAuth
        EXEC @hr = sp_OADestroy @rest
        RETURN
      END

    -- A successful response will have a status code equal to 200.
    EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
    IF @iTmp0 <> 200
      BEGIN

        EXEC sp_OAGetProperty @rest, 'LastRequestHeader', @sTmp0 OUT
        PRINT 'request header = ' + @sTmp0

        EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
        PRINT 'response status code = ' + @iTmp0

        EXEC sp_OAGetProperty @rest, 'ResponseStatusText', @sTmp0 OUT
        PRINT 'response status text = ' + @sTmp0

        EXEC sp_OAGetProperty @rest, 'ResponseHeader', @sTmp0 OUT
        PRINT 'response header: ' + @sTmp0

        PRINT 'response JSON: ' + @jsonResponse
        EXEC @hr = sp_OADestroy @gAuth
        EXEC @hr = sp_OADestroy @rest
        RETURN
      END

    -- A successful response looks like this:
    -- {
    --  "kind": "drive#fileList",
    --  "files": [
    --    {
    --      "kind": "drive#file",
    --      "id": "0B53Q6OSTWYolenpjTEU4ekJlQUU",
    --      "name": "test",
    --      "mimeType": "application/vnd.google-apps.folder"
    --    },
    --    {
    --      "kind": "drive#file",
    --      "id": "0B53Q6OSTWYolRm4ycjZtdXhRaEE",
    --      "name": "starfish4.jpg",
    --      "mimeType": "image/jpeg"
    --    },
    --    {
    --      "kind": "drive#file",
    --      "id": "0B53Q6OSTWYolMWt2VzN0Qlo1UjA",
    --      "name": "hamlet2.xml",
    --      "mimeType": "text/xml"
    --    },
    -- ...
    --    {
    --      "kind": "drive#file",
    --      "id": "0B53Q6OSTWYolc3RhcnRlcl9maWxlX2Rhc2hlclYw",
    --      "name": "Getting started",
    --      "mimeType": "application/pdf"
    --    }
    --  ]
    -- }

    -- Iterate over each file in the response and show the name, id, and mimeType.
    DECLARE @json int
    -- Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT

    EXEC sp_OAMethod @json, 'Load', @success OUT, @jsonResponse

    -- Show the full JSON response.
    EXEC sp_OASetProperty @json, 'EmitCompact', 0
    EXEC sp_OAMethod @json, 'Emit', @sTmp0 OUT
    PRINT @sTmp0

    DECLARE @numFiles int
    EXEC sp_OAMethod @json, 'SizeOfArray', @numFiles OUT, 'files'
    DECLARE @i int
    SELECT @i = 0
    WHILE @i < @numFiles
      BEGIN
        EXEC sp_OASetProperty @json, 'I', @i

        EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'files[i].name'
        PRINT 'name: ' + @sTmp0

        EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'files[i].id'
        PRINT 'id: ' + @sTmp0

        EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'files[i].mimeType'
        PRINT 'mimeType: ' + @sTmp0

        PRINT '-'
        SELECT @i = @i + 1
      END

    EXEC @hr = sp_OADestroy @gAuth
    EXEC @hr = sp_OADestroy @rest
    EXEC @hr = sp_OADestroy @json


END
GO