multipartform-data – Page 3

How can I rewrite this CURL multipart/form-data request without using -F?

May 30, 2023 by Tarik

Solved: curl \ -X POST \ -H “Content-Type: multipart/form-data; boundary=—————————-4ebf00fbcf09″ \ –data-binary @test.txt \ http://localhost:3000/test Where test.txt contains the following text, and most importantly has CRLF (\r\n) line endings: ——————————4ebf00fbcf09 Content-Disposition: form-data; name=”example” test ——————————4ebf00fbcf09– Notes: it is important to use –data-binary instead of plain old -d as the former preserves the line endings (which … Read more

WebAPI File Uploading – Without writing files to disk

May 21, 2023 by Tarik

Solved: Use the existing simple MultipartMemoryStreamProvider. No custom classes or providers required. This differers from the duplicate question which solved the solution by writing a custom provider. Then use it in a WebAPI handler as so: public async Task<IHttpActionResult> UploadFile() { if (!Request.Content.IsMimeMultipartContent()) { return StatusCode(HttpStatusCode.UnsupportedMediaType); } var filesReadToProvider = await Request.Content.ReadAsMultipartAsync(); foreach (var stream … Read more

simple HttpURLConnection POST file multipart/form-data from android to google blobstore

May 18, 2023 by Tarik

use okhttp and use following snippet (taken from recipes) adjust the header values according to what your server expects. private static final String IMGUR_CLIENT_ID = “…”; private static final MediaType MEDIA_TYPE_PNG = MediaType.parse(“image/png”); private final OkHttpClient client = new OkHttpClient(); public void run() throws Exception { // Use the imgur image upload API as documented … Read more

Using Django Rest Framework, how can I upload a file AND send a JSON payload?

May 13, 2023 by Tarik

For someone who needs to upload a file and send some data, there is no straight fwd way you can get it to work. There is an open issue in json api specs for this. One possibility i have seen is to use multipart/related as shown here, but i think its very hard to implement … Read more

Node.js (with express & bodyParser): unable to obtain form-data from post request

May 12, 2023 by Tarik

In general, an express app needs to specify the appropriate body-parser middleware in order for req.body to contain the body. [EDITED] If you required parsing of url-encoded (non-multipart) form data, as well as JSON, try adding: // Put this statement near the top of your module var bodyParser = require(‘body-parser’); // Put these statements before … Read more

Web API: how to access multipart form values when using MultipartMemoryStreamProvider?

May 10, 2023 by Tarik

Updated 4/28/2015 You could create a custom provider based on MultipartFormDataRemoteStreamProvider. Example: public class CustomMultipartFormDataProvider : MultipartFormDataRemoteStreamProvider { public override RemoteStreamInfo GetRemoteStream(HttpContent parent, HttpContentHeaders headers) { return new RemoteStreamInfo( remoteStream: new MemoryStream(), location: string.Empty, fileName: string.Empty); } } Updated Custom In-memory MultiaprtFormDataStreamProvider: public class InMemoryMultipartFormDataStreamProvider : MultipartStreamProvider { private NameValueCollection _formData = new NameValueCollection(); private … Read more

How to upload images to server in Flutter?

May 9, 2023 by Tarik

Use MultipartRequest class Upload(File imageFile) async { var stream = new http.ByteStream(DelegatingStream.typed(imageFile.openRead())); var length = await imageFile.length(); var uri = Uri.parse(uploadURL); var request = new http.MultipartRequest(“POST”, uri); var multipartFile = new http.MultipartFile(‘file’, stream, length, filename: basename(imageFile.path)); //contentType: new MediaType(‘image’, ‘png’)); request.files.add(multipartFile); var response = await request.send(); print(response.statusCode); response.stream.transform(utf8.decoder).listen((value) { print(value); }); } name spaces: import … Read more

sending file and json in POST multipart/form-data request with axios

May 1, 2023 by Tarik

To set a content-type you need to pass a file-like object. You can create one using a Blob. const obj = { hello: “world” }; const json = JSON.stringify(obj); const blob = new Blob([json], { type: ‘application/json’ }); const data = new FormData(); data.append(“document”, blob); axios({ method: ‘post’, url: ‘/sample’, data: data, })

Using MultipartPostHandler to POST form-data with Python

April 30, 2023 by Tarik

It seems that the easiest and most compatible way to get around this problem is to use the ‘poster’ module. # test_client.py from poster.encode import multipart_encode from poster.streaminghttp import register_openers import urllib2 # Register the streaming http handlers with urllib2 register_openers() # Start the multipart/form-data encoding of the file “DSC0001.jpg” # “image1” is the name … Read more

How can I receive an uploaded file using a Golang net/http server?

April 24, 2023 by Tarik

Here’s a quick example func ReceiveFile(w http.ResponseWriter, r *http.Request) { r.ParseMultipartForm(32 << 20) // limit your max input length! var buf bytes.Buffer // in your case file would be fileupload file, header, err := r.FormFile(“file”) if err != nil { panic(err) } defer file.Close() name := strings.Split(header.Filename, “.”) fmt.Printf(“File name %s\n”, name[0]) // Copy the … Read more