Go

Initiate Resumable Upload Session

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Initiate a Google Cloud Storage resumable upload session.. Go

    success := false

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    http := chilkat.NewHttp()

    jsonToken := chilkat.NewJsonObject()
    success = jsonToken.LoadFile("qa_data/tokens/googleCloudStorage.json")
    if success == false {
        fmt.Println(jsonToken.LastErrorText())
        http.DisposeHttp()
        jsonToken.DisposeJsonObject()
        return
    }

    jsonMetaData := chilkat.NewJsonObject()
    jsonMetaData.UpdateString("contentType","image/jpeg")

    // Adds the "Authorization: Bearer <access_token>" header..
    http.SetAuthToken(jsonToken.StringOf("access_token"))

    http.SetUrlVar("bucket_name","chilkat-bucket-b")
    http.SetUrlVar("object_name","penguins2.jpg")
    url := "https://storage.googleapis.com/upload/storage/v1/b/{$bucket_name}/o?uploadType=resumable&name={$object_name}"
    resp := chilkat.NewHttpResponse()
    success = http.HttpJson("POST",url,jsonMetaData,"application/json",resp)
    if success == false {
        fmt.Println(http.LastErrorText())
        http.DisposeHttp()
        jsonToken.DisposeJsonObject()
        jsonMetaData.DisposeJsonObject()
        resp.DisposeHttpResponse()
        return
    }

    statusCode := resp.StatusCode()
    fmt.Println("response status code = ", statusCode)

    var sessionUrl *string = new(string)
    *sessionUrl = ""

    if statusCode != 200 {
        fmt.Println(resp.BodyStr())
    } else {
        // The session URL will be used to upload the file in chunks, in subsequent HTTP POSTs...
        sessionUrl = resp.GetHeaderField("Location")
        fmt.Println("Session URL = ", *sessionUrl)
    }


    http.DisposeHttp()
    jsonToken.DisposeJsonObject()
    jsonMetaData.DisposeJsonObject()
    resp.DisposeHttpResponse()