I am making POST request using http lib in Dart. After I wandering around former answers with no luck. Even official doc
import 'package:http/http.dart' as http;
Future<http.Response> createAlbum(String nameEN) {
return http.post(
'http://localhost:8000/api/products/',
headers: <String, String>{
'Content-Type': 'application/json; charset=UTF-8',
},
body: jsonEncode(<String, String>{
'nameEN': nameEN,
}),
);
}
And I test with unittest like this
testWidgets('POST request from offcial docs', (WidgetTester tester) async{
final http.Response res = await createAlbum("Jordan");
print(res.statusCode);
});
Attempt:
PostmanApp can make request and get 201 in response. However, when I copy&paste the Dart code from it and test it does not work
I always get 400 and no request comes to localhost:8000
testWidgets('POST request from postman', (WidgetTester tester) async{
var headers = {
'Content-Type': 'application/json'
};
var request = http.Request('POST', Uri.parse('localhost:8000/api/products/'));
request.body = '''{\n "name_jp": "李天宝",\n "name_en": "Sarit",\n "description": "Developer",\n "qty": 3,\n "expiry": "2099-12-25",\n "barcode": "549XXXYYYYYY",\n "price": "{\\"bounds\\": \\"[)\\", \\"lower\\": \\"12\\", \\"upper\\": \\"6\\"}",\n "medium_price": 60\n}''';
request.headers.addAll(headers);
http.StreamedResponse response = await request.send();
if (response.statusCode == 200) {
print(200);
print(await response.stream.bytesToString());
}
else {
print(response.statusCode);
print(response.reasonPhrase);
}
});
Problem
Dart response returned to me is 400 and on the server side request has not been sent out to my http://localhost:8000/api/products/
Question:
What is the correct POST syntax?
References:
HTTP POST with Json on Body - Flutter/Dart
Bad state: Cannot set the body fields of a Request with content-type "application/json"
Flutter FormatException: Unexpected character (at character 1)
