Dart json.encode returns json string with key values without quotes

Question

I am trying to convert a dictionary to json string. However I am not getting quotes around any of the strings. I am using dart 2 . Here is what I have

  var resBody = {};   resBody["email"] = "[email protected]";   resBody["password"] = "admin123";   var user = {};   user["user"] = resBody;   String str = json.encode(user); 

Output is:

{user: {email: [email protected], password: admin123}} 

I would like this to be like an actual json object

{"user": {"email": "[email protected]", "password: admin123"}} 

How can I tell dart to put quotes around it ? I looked at this thread and am doing exactly what works for the user Am I doing something wrong ?

Answer 1

This is working as expected

import 'dart:convert';  void main() {   var resBody = {};   resBody["email"] = "[email protected]";   resBody["password"] = "admin123";   var user = {};   user["user"] = resBody;   String str = json.encode(user);   print(str); } 

prints

{"user":{"email":"[email protected]","password":"admin123"}} 

DartPad example

[or]

import 'dart:convert';  void main() {   const JsonEncoder encoder = JsonEncoder.withIndent('  ');   try {   var resBody = {};   resBody["email"] = "[email protected]";   resBody["password"] = "admin123";   var user = {};   user["user"] = resBody;   String str = encoder.convert(user);   print(str);   } catch(e) {     print(e);   } }  

which gives you the beautified output

{   "user": {     "email": "[email protected]",     "password": "admin123"   } } 

Answer 2

If the response content is too long, So Below is a function to help also print long and exact formation JSON data into your Dart terminal. This function can be used just like you would with a print('some message') in Dart, but the parameter has to be a String of JSON.

import 'dart:convert'; //Don't forget to import this  void printJson(String input) {   const JsonDecoder decoder = JsonDecoder();   const JsonEncoder encoder = JsonEncoder.withIndent('  ');   final dynamic object = decoder.convert(input);   final dynamic prettyString = encoder.convert(object);   prettyString.split('\n').forEach((dynamic element) => print(element)); } 

You would use/call it like

  Future<dynamic> getYourApiData({double lon, double lat}) async {     final String url = yourApiUrl;     final http.Response response = await http.get(url);     response = {       "user": {"email": "[email protected]", "password": "admin123"}     }; //Suppose your response is like this     /*   Below we are calling the printJson() with the response.body   But you need to make sure it's in String format.   */     printJson(response.body.toString());   } 

The output of this will be something like this