CODEWITHSUNDEEP
c#boxboxapiv2
Han Tran
Han Tran

Reputation: 2093

Upload file to API v2 of Box by Webclient

I'm working with the Box API v2, I've try to do the upload file with the WebClient but without success.

From the API: 

curl https://upload.box.com/api/2.0/files/content \
-H "Authorization: Bearer ACCESS_TOKEN" -X POST \
-F attributes='{"name":"tigers.jpeg", "parent":{"id":"11446498"}}' \
-F [email protected]

So I've write it by C#:

using (WebClient client = new WebClient())
        {
            client.Headers.Add("Authorization", "Bearer " + Utils.GetAccessTokenFromFile());
            client.Headers.Set("Content-Type", "multipart/form-data; boundary=-handeptrai---");
            NameValueCollection values = new NameValueCollection() { 
                {"attributes","{\"name\":\"test.txt\", \"parent\":{\"id\":\"0\"}}"},
                {"file",@Utils.TestFilePath}
            };
            byte[] result = client.UploadValues("https://upload.box.com/api/2.0/files/content", "POST", values);
            string json = Encoding.UTF8.GetString(result);
        }

When I try to debug to see what is going on, I saw nothing at the UploadValues step.

Any idea? Thank you!

Upvotes: 0

Views: 1129

Answers (1)

Han Tran
Han Tran

Reputation: 2093

Okay, finally I solved the upload problem with HttpClient and MultipartFormDataContent, here is final code to upload a text file:

        var client = new HttpClient();
        var content = new MultipartFormDataContent();
        client.DefaultRequestHeaders.Add("Authorization", "Bearer " + Utils.GetAccessTokenFromFile());
        content.Add(new StreamContent(File.Open(Utils.AnyFilePath, FileMode.Open)), "token", "test.txt");
        content.Add(new StringContent("{\"name\":\"test.txt\", \"parent\":{\"id\":\"0\"}}"), "attributes");
        var result = await client.PostAsync("https://upload.box.com/api/2.0/files/content", content);
        result.EnsureSuccessStatusCode();
        string sContent = await result.Content.ReadAsStringAsync();

Then the sContent will be the json which contain details of uploaded file. Hope this help!

Upvotes: 2

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