(Go) Upload Filename with SPACE Chars to Google Cloud Storage

Demonstrates how to upload a file with SPACE chars in the name to Google Cloud Storage.

Note: This example requires Chilkat v11.0.0 or greater.

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    success := false

    // This example 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 
    // scope "https://www.googleapis.com/auth/cloud-platform"

    // In this example, Get Google Cloud Storage OAuth2 Access Token, 
    // the service account access token was saved to a text file.  This example fetches the access token from the file..
    sbToken := StringBuilder_Ref.html">chilkat.NewStringBuilder()
    sbToken.LoadFile("qa_data/tokens/googleCloudStorageAccessToken.txt","utf-8")

    // Send a POST equivalent to this curl command.
    // The content of the file is contained in the request body.

    // curl -X POST --data-binary @[OBJECT] \
    //     -H "Authorization: Bearer [OAUTH2_TOKEN]" \
    //     -H "Content-Type: [OBJECT_CONTENT_TYPE]" \
    //     "https://www.googleapis.com/upload/storage/v1/b/[BUCKET_NAME]/o?uploadType=media&name=[OBJECT_NAME]"

    http := Http_Ref.html">chilkat.NewHttp()
    http.SetAuthToken(sbToken.GetAsString())

    // Use %20 for the SPACE chars in the path.
    sbPath := StringBuilder_Ref.html">chilkat.NewStringBuilder()
    sbPath.Append("/upload/storage/v1/b/bucket_name/o?uploadType=media&name=file%20with%20space%20char.jpg")
    numReplaced := sbPath.Replace("bucket_name","chilkat-ocean")

    req := HttpRequest_Ref.html">chilkat.NewHttpRequest()
    req.SetHttpVerb("POST")
    req.SetPath(sbPath.GetAsString())
    req.SetContentType("image/jpeg")
    // Indicate the file to be streamed in the request body when the HTTP POST is sent.
    // Use SPACE chars directly in the local file path.
    req.StreamBodyFromFile("qa_data/jpg/file with space char.jpg")

    resp := HttpResponse_Ref.html">chilkat.NewHttpResponse()
    success = http.HttpSReq("www.googleapis.com",443,true,req,resp)
    if success == false {
        fmt.Println(http.LastErrorText())
        sbToken.DisposeStringBuilder()
        http.DisposeHttp()
        sbPath.DisposeStringBuilder()
        req.DisposeHttpRequest()
        resp.DisposeHttpResponse()
        return
    }

    responseCode := resp.StatusCode()
    if responseCode == 401 {
        fmt.Println(resp.BodyStr())
        fmt.Println("If invalid credentials, then it is likely the access token expired.")
        fmt.Println("Your app should automatically fetch a new access token and re-try.")
        sbToken.DisposeStringBuilder()
        http.DisposeHttp()
        sbPath.DisposeStringBuilder()
        req.DisposeHttpRequest()
        resp.DisposeHttpResponse()
        return
    }

    fmt.Println("Response code: ", responseCode)
    fmt.Println("Response body")
    fmt.Println(resp.BodyStr())

    // A successful response looks like this:
    // Response code: 200
    // Response body
    // {
    //  "kind": "storage#object",
    //  "id": "chilkat-ocean/file with space char.jpg/1502643657837855",
    //  "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/file with space char.jpg",
    //  "name": "file with space char.jpg",
    //  "bucket": "chilkat-ocean",
    //  "generation": "1502643657837855",
    //  "metageneration": "1",
    //  "contentType": "image/jpeg",
    //  "timeCreated": "2017-08-13T17:00:57.811Z",
    //  "updated": "2017-08-13T17:00:57.811Z",
    //  "storageClass": "MULTI_REGIONAL",
    //  "timeStorageClassUpdated": "2017-08-13T17:00:57.811Z",
    //  "size": "777835",
    //  "md5Hash": "nTd7EM53jEk4s8fixjoimg==",
    //  "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-ocean/o/file with space char.jpg?generation=1502643657837855&alt=media",
    //  "crc32c": "ixxYVw==",
    //  "etag": "CJ+azOvX1NUCEAE="
    // }

    sbToken.DisposeStringBuilder()
    http.DisposeHttp()
    sbPath.DisposeStringBuilder()
    req.DisposeHttpRequest()
    resp.DisposeHttpResponse()