How to upload images to server in Flutter?

Question

I would like to upload a image, I am using http.Client() for making requests,

static uploadImage(String id, File file) {   var httpClient = createHttpClient();    Map<String, String> headers = new Map<String, String>();   headers.putIfAbsent("Authorization", () => "---");   headers.putIfAbsent("Content-Type", () => "application/json");    var body=new List();   body.add(id.)   httpClient.post(URL_UPLOADIMAGE,headers: headers,body: ,encoding: ) } 

What should be the body and encoding part for the request ?

Answer 1

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 'package:path/path.dart'; import 'package:async/async.dart'; import 'dart:io'; import 'package:http/http.dart' as http;