Using convertapi in Windows Store App

Question

Im trying out the Convertapi in a Windows store App project, and i want to send a .docx file and get a pdf file in return, im trying to do a post but im not sure how its done, this is what i have so far, but its not working.

    private async Task GeneratePdfContract(string path) {
try {
    var data = new List < KeyValuePair < string, string >> {
            new KeyValuePair < string, string > ("Api", "5"),
                new KeyValuePair < string, string > ("ApiKey", "413595149"),
                new KeyValuePair < string, string > ("File", "" + stream2),

        };

    await PostKeyValueData(data);

} catch (Exception e) {

    Debug.WriteLine(e.Message);
}

}

private async Task PostKeyValueData(List < KeyValuePair < string, string >> values) {
var httpClient = new HttpClient();
var response = await httpClient.PostAsync("http://do.convertapi.com/Word2Pdf", new FormUrlEncodedContent(values));
var responseString = await response.Content.ReadAsStringAsync();

}

How should i do my post to send a .docx file and get a .pdf file in return?

Answer 1

Hi Thought2,

Try to validate if your parameters are passed correctly, as I test online with your ApiKey, something wrong there.

Double check if you have all things correct for instance confirm if your file upload is a binary and etc.

--James

---

<THE CONTENT IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS OR IMPLIED>
Thanks
MSDN Community Support

Please remember to "Mark as Answer" the responses that resolved your issue. It is a common way to recognize those who have helped you, and makes it easier for other visitors to find the resolution later.

Answer 2

im trying something diferent now

private async Task GeneratePdfContract(string path)
        {
            try
            {
                using (var client = new System.Net.Http.HttpClient())
                {
                    using (var multipartFormDataContent = new MultipartFormDataContent())
                    {
                        var values = new[]
        {
            new KeyValuePair<string, string>("ApiKey", "419595049")
        };

                        foreach (var keyValuePair in values)
                        {
                            multipartFormDataContent.Add(new StringContent(keyValuePair.Value), String.Format("\"{0}\"", keyValuePair.Key));
                        }

                        StorageFolder currentFolder = await ApplicationData.Current.LocalFolder.GetFolderAsync(Constants.DataDirectory);

                        StorageFile outputFile = await currentFolder.GetFileAsync(Constants.B2bWordContractFile);

                        byte[] fileBytes = await outputFile.ToBytes();


                        //multipartFormDataContent.Add(new ByteArrayContent(FileIO.ReadBufferAsync(@"C:\test.docx")), '"' + "File" + '"', '"' + "test.docx" + '"');

                        multipartFormDataContent.Add(new ByteArrayContent(fileBytes));

                        const string requestUri = "http://do.convertapi.com/word2pdf";

                        var response = await client.PostAsync(requestUri, multipartFormDataContent);
                        if (response.IsSuccessStatusCode)
                        {
                            var responseHeaders = response.Headers;
                            var paths = responseHeaders.GetValues("OutputFileName").First();
                            var path2 = Path.Combine(@"C:\", paths);



                            StorageFile sampleFile = await ApplicationData.Current.LocalFolder.CreateFileAsync(@"C:\Users\Thought\AppData\Local\Packages\xxxx_apk0zz032bzya\LocalState\Data\");
                            await FileIO.WriteBytesAsync(sampleFile, await response.Content.ReadAsByteArrayAsync());


                        }
                        else
                        {
                            Debug.WriteLine("Status Code : {0}", response.StatusCode);
                            Debug.WriteLine("Status Description : {0}", response.ReasonPhrase);
                        }

                    }
                }
            }
            catch (Exception e)
            {
                Debug.WriteLine(e.Message);
            }

        }

But i get something like this in return in my response variable

and this on output

Status Code : BadRequest
Status Description : The 'File' parameter cannot be null. Please set value.

Answer 3

Hi Thought2,

That's kind of expected behavior.

Please take a look at the documentation: File access and permissions, I think you did something wrong with the file path, "C:" is not allow in Windows Store App.

--James

---

<THE CONTENT IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS OR IMPLIED>
Thanks
MSDN Community Support

Please remember to "Mark as Answer" the responses that resolved your issue. It is a common way to recognize those who have helped you, and makes it easier for other visitors to find the resolution later.