I want to upload an image to Nodejs backend server(multer plugin handles multipart section)
My code is this:
IEnumerator Uploadimage(string url, string _headerKey, string _headerValue)
{
_headerValue = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJfaWQiOiI1YzBiNjgyOTc4YzBiMjMxYjQ1NGVkNmUiLCJpYXQiOjE1NDQyNTE0NTN9.tAFVjpAQMoWrY2d7-0hHQ3KPidHgRmBPcAEL4Pr203Y";
List<IMultipartFormSection> form = new List<IMultipartFormSection>();
Texture2D texture = new Texture2D(2, 2);
string dirPath = Application.persistentDataPath + "/saveImages/";
System.IO.DirectoryInfo info = new System.IO.DirectoryInfo(dirPath);
System.IO.FileInfo[] fileInfo = info.GetFiles();
if (fileInfo[fileInfo.Length - 1].Extension.ToString() == ".jpg" && fileInfo[fileInfo.Length - 1].Name.ToString().Substring(0, 5) == "Image")
{
byte[] byteArray = System.IO.File.ReadAllBytes(dirPath + fileInfo[fileInfo.Length - 1].Name.ToString());
texture.LoadImage(byteArray);
Debug.Log("111" + dirPath + fileInfo[fileInfo.Length - 1].Name.ToString());
// string result = Convert.ToBase64String(byteArray);
}
// generate a boundary then convert the form to byte[]
byte[] boundary = UnityWebRequest.GenerateBoundary();
string contentTypeString = "";
contentTypeString = "multipart/form-data; boundary=" + System.Text.Encoding.UTF8.GetString(boundary);
// read a file and add it to the form
Debug.Log("ssss");
form.Add(new MultipartFormDataSection("avatar33", "myData"));
form.Add(new MultipartFormFileSection("avatar", ImageConversion.EncodeToJPG(texture), "test.jpeg", "image/jpeg"));
UnityWebRequest www = UnityWebRequest.Post(url, form);
byte[] formSections = UnityWebRequest.SerializeFormSections(form, boundary);
byte[] terminate = System.Text.Encoding.UTF8.GetBytes(String.Concat("\r\n--", System.Text.Encoding.UTF8.GetString(boundary), "--"));
// Make my complete body from the two byte arrays
byte[] body = new byte[formSections.Length + terminate.Length];
Buffer.BlockCopy(formSections, 0, body, 0, formSections.Length);
Buffer.BlockCopy(terminate, 0, body, formSections.Length, terminate.Length);
string contentType = String.Concat("multipart/form-data; boundary=", System.Text.Encoding.UTF8.GetString(boundary));
// Make my request object and add the raw body. Set anything else you need here
//www.uploadHandler = new UploadHandlerRaw(body);
//www.uploadHandler.contentType = contentTypeString;
UploadHandler uploader = new UploadHandlerRaw(body);
uploader.contentType = contentType;
www.uploadHandler = uploader;
//set jwt
if (_headerKey != null)
www.SetRequestHeader(_headerKey, _headerValue);
// www.SetRequestHeader("Content-Type", "multipart/form-data");
yield return www.SendWebRequest();
Debug.Log("request.GetResponseHeader " + www);
Debug.Log("request.GetResponseHeader " + www.responseCode);
}
in the header JWT is implemented(its not important)...
I put debug in the place that I read my image and that exists ...
I do every way that other post said but none of them works....
what I watched is that If I use postman fileuploaded seccessfully(I ran server locally)
-----------------------------------------------------a little change on codes but still no success
IEnumerator Uploadimage(string url, string _headerKey, string _headerValue)
{
_headerValue = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJfaWQiOiI1YzBiNjgyOTc4YzBiMjMxYjQ1NGVkNmUiLCJpYXQiOjE1NDQyNTE0NTN9.tAFVjpAQMoWrY2d7-0hHQ3KPidHgRmBPcAEL4Pr203Y";
List<IMultipartFormSection> form = new List<IMultipartFormSection>();
Texture2D texture = new Texture2D(2, 2);
string dirPath = Application.persistentDataPath + "/saveImages/";
System.IO.DirectoryInfo info = new System.IO.DirectoryInfo(dirPath);
System.IO.FileInfo[] fileInfo = info.GetFiles();
if (fileInfo[fileInfo.Length - 1].Extension.ToString() == ".png" && fileInfo[fileInfo.Length - 1].Name.ToString().Substring(0, 5) == "Image")
{
byte[] byteArray = System.IO.File.ReadAllBytes(dirPath + fileInfo[fileInfo.Length - 1].Name.ToString());
texture.LoadImage(byteArray);
}
// generate a boundary then convert the form to byte[]
byte[] boundary = UnityWebRequest.GenerateBoundary();
string contentTypeString = "";
contentTypeString = "multipart/form-data; boundary=" + System.Text.Encoding.UTF8.GetString(boundary);
// read a file and add it to the form
form.Add(new MultipartFormDataSection("avatar33", "myData"));
form.Add(new MultipartFormFileSection("avatar", ImageConversion.EncodeToJPG(texture), "test.jpeg", "image/jpeg"));
UnityWebRequest www = UnityWebRequest.Post(url, form);
//set jwt
if (_headerKey != null)
www.SetRequestHeader(_headerKey, _headerValue);
www.SetRequestHeader("Content-Type", "multipart/form-data");
yield return www.SendWebRequest();
Debug.Log("request.GetResponseHeader " + www);
Debug.Log("request.GetResponseHeader " + www.responseCode);
}
Ok I found solution:
1.you should just generate boundaries and put a terminating boundari at the end:the first post shows that
2.then the weiredest problem that should be solve is to convert form.data bytes to string and replace content-disposition : file with content-disposition : form-data
and now it works with IMultipartFormSection