Go

Upload Application Specific Data

See more Google Drive Examples

Uploads a text file (application specific data) where the contents of the file are contained in a string variable. Go

    success := false

    success = true

    // 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 application specific data scope.
    jsonToken := chilkat.NewJsonObject()
    success = jsonToken.LoadFile("qa_data/tokens/googleDriveAppData.json")

    gAuth := chilkat.NewAuthGoogle()
    gAuth.SetAccessToken(jsonToken.StringOf("access_token"))

    rest := chilkat.NewRest()

    // Connect using TLS.
    bAutoReconnect := true
    success = rest.Connect("www.googleapis.com",443,true,bAutoReconnect)

    // Provide the authentication credentials (i.e. the access token)
    rest.SetAuthGoogle(gAuth)

    // A multipart upload to Google Drive needs a multipart/related Content-Type
    rest.AddHeader("Content-Type","multipart/related")

    // Specify each part of the request.

    // The 1st part is JSON with information about the file.
    rest.SetPartSelector("1")
    rest.AddHeader("Content-Type","application/json; charset=UTF-8")

    json := chilkat.NewJsonObject()
    json.SetEmitCompact(false)

    json.UpdateString("name","helloWorld.txt")
    json.UpdateString("description","A simple text file that says Hello World.")
    json.UpdateString("mimeType","text/plain")
    // Specifiy the application-specific data folder.
    json.UpdateString("parents[0]","appDataFolder")
    rest.SetMultipartBodyString(*json.Emit())

    fmt.Println(*json.Emit())

    // The JSON looks like this:
    // {
    //   "name": "helloWorld.txt",
    //   "description": "A simple text file that says Hello World.",
    //   "mimeType": "text/plain",
    //   "parents": [
    //     "appDataFolder"
    //   ]
    // }

    // The 2nd part is the file content.
    // In this case, we'll upload a simple text file containing "Hello World!"
    rest.SetPartSelector("2")
    rest.AddHeader("Content-Type","text/plain")

    fileContents := "Hello World!"
    rest.SetMultipartBodyString(fileContents)

    jsonResponse := rest.FullRequestMultipart("POST","/upload/drive/v3/files?uploadType=multipart")
    if rest.LastMethodSuccess() != true {
        fmt.Println(rest.LastErrorText())
        jsonToken.DisposeJsonObject()
        gAuth.DisposeAuthGoogle()
        rest.DisposeRest()
        json.DisposeJsonObject()
        return
    }

    // A successful response will have a status code equal to 200.
    if rest.ResponseStatusCode() != 200 {
        fmt.Println("response status code = ", rest.ResponseStatusCode())
        fmt.Println("response status text = ", rest.ResponseStatusText())
        fmt.Println("response header: ", rest.ResponseHeader())
        fmt.Println("response JSON: ", *jsonResponse)
        jsonToken.DisposeJsonObject()
        gAuth.DisposeAuthGoogle()
        rest.DisposeRest()
        json.DisposeJsonObject()
        return
    }

    // Show the JSON response.
    json.Load(*jsonResponse)

    // Show the full JSON response.
    json.SetEmitCompact(false)
    fmt.Println(*json.Emit())

    // A successful response looks like this:
    // {
    //   "kind": "drive#file",
    //   "id": "0B53Q6OSTWYoldmJ0Z3ZqT2x5MFk",
    //   "name": "Untitled",
    //   "mimeType": "text/plain"
    // }

    // Get the fileId:
    fmt.Println("fileId: ", *json.StringOf("id"))

    jsonToken.DisposeJsonObject()
    gAuth.DisposeAuthGoogle()
    rest.DisposeRest()
    json.DisposeJsonObject()