Questions tagged [flutter-http]
241 questions
0
votes
1 answer
Flutter how to pass form data to api
I Have a form to get data from the user. The objective is to pass the form data as an object to the Api. The Form is as follows.
Form(
key: _formKey,
child: Column(
children: [
…
Febin Johnson
- 277
- 1
- 6
- 21
0
votes
2 answers
Flutter HTTP post request JSON handling not working properly
I am using nodejs backend with flutter app. I use flutter http package to send requests. I want to send datetime via the request, so I converted it to string. So in the node backend this data cannot be converted into original types (like DateTime or…
Pasan Madhushan
- 205
- 1
- 4
- 10
0
votes
2 answers
The class 'List' doesn't have a constructor named 'fromJson'. Try invoking a different constructor, or define a constructor named 'fromJson'
class Product {
String status;
List
- note;
List
- table;
Product({this.status, this.note, this.table});
Product.fromJson(Map
user16867349
0
votes
1 answer
How to display Future result (error) in Flutter
i am trying to build a address search with Places API. But I don't know how to show the results.
The Searchfield class
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:flutter/material.dart';
import…
Sebastian Klenk
- 3
- 1
0
votes
2 answers
How do we transfer data from one screen to another screen in flutter?
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(
'Category',
),
),
body: Center(
child: FutureBuilder(
future: fetchCategory(),
builder: (ctx, snapShot) {
if…
user16867349
0
votes
1 answer
Unable to get response from http request from a localhost API (node js express) on Flutter Web
i build a simple api that has a response body of
{ "name": "saud", "age": "22" }
it is hosted on http://localhost:7283/saud using Node js express
app.get('/saud',(req,res)=>{res.status(200).send({name:'saud',age:'22'}) } );
it works if i access from…
Saud Ahmed
- 65
- 6
0
votes
1 answer
Flutter http doesn't work in releasebuild
On debug everything works fine. But if I create a releasebuild the Flutter http-libary doesn't work.
I've the internet-permission in my androidmanifest.
Currently I use Flutter 2.5.0 and http 0.13.3.
I've already created a new project, but it…
Julia Breitenbach
- 11
- 1
0
votes
0 answers
Flutter Json returns null
Im trying to retrieve data from a Json. I have created a model as follows. Im receiving a response. When i try to model the response to a list it gives null. I've able to get the length of the list. But i cant access a value, it returns null
class…
Febin Johnson
- 277
- 1
- 6
- 21
0
votes
0 answers
Flutter Edamam no data response
I am currently trying to learn rest APIs. I want to program a food app and I'm using the Edamam food database.
https://developer.edamam.com/food-database-api-docs
If I do a request on the browser with a sample…
Anima361
- 31
- 5
0
votes
1 answer
Flutter - how to get Stream Response of Video mp4 and download it
i am using Multipart Request in which i post image after that i get response of video.mp4 but i dont know how to get this response i tried
response.stream.bytetoString() //which give me formatexception which is unexpected byte
i dont know…
Adnan haider
- 553
- 8
- 21
0
votes
4 answers
How to get JSON response after onPresseed button in Flutter // Dart
I don't get any issues to get JSON data the button is pressed to get JSON response.body is printed successfully but the JSON response is executed before I give _addressController value the if condition executed so the exception is shown on the print…
VARADHARAJ MAHENDRAN
- 31
- 2
- 10
0
votes
1 answer
Flutter - cannot download audio files
It's been 3 days that I try to fix an issue with the download of audio files with my Flutter application. When I try to download audio files, the request keep the "pending" status and finish with no error.
I have research a lot and find something…
Tryliom
- 895
- 1
- 12
- 37
0
votes
2 answers
How to change to type of response to Map in flutter
I try to make a GET http call from flutter to Nodejs. The data I get is in json form but when I try to manipulate it with flutter I can't because the response is of type RESPONSE or I can change it to string I don't know how to change the response…
youssef11511
- 31
- 7
0
votes
1 answer
how to get the values inside Instance of 'Future?>' in Flutter?
I'm using Dio for http requests and the function for post method is like this :
Future post(String url, dynamic data) async {
try {
Response response = await baseAPI.post(url, data: data);
return response;
} on…
Shashiwadana
- 492
- 1
- 8
- 16
0
votes
1 answer
how to insert headers on MultipartRequest in flutter
below is the code that I tried but it didn't work, how to insert header on MultipartRequest?
var id = prefs.getInt('id');
var token = prefs.getString('accessToken');
var uri = Uri.parse('https://url.com/submit/$id');
var…
Jon
- 109
- 2
- 10