CODEWITHSUNDEEP
flutterdart
Shivam Sahil
Shivam Sahil

Reputation: 4921

How to declare a variable inside onPressed Flutter?

I am trying to create a variable in onPressed. But it says error: expected {. Can someone show an example of onPressed where a variable is initialized, declared and used?

Here is my code:

import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;

class TestingWidget extends StatefulWidget {
  @override
  _TestingWidgetState createState() => _TestingWidgetState();
}
var requestbody = {
  "apiKey":"z_P!EJ?dsverbtbspV3K4GxaET",
  "operationType":"register_user_otp",
  "operationData": {
    "email": "[email protected]",
    "userName":"dvre",
    "accessKey":"2defr",
    "accessValue":"32rfg43v5",
    "registrationTimeStamp": 1616919213853
  }
};
var url = Uri.parse('https://script.google.com/macros/s/AKfycbz7kTROol8u509M_p9pMZ9XRnL-myVjcRQKeb9Etp_OIMPnH640vHf_0Jp2dvRIco7kOg/exec');


class _TestingWidgetState extends State<TestingWidget> {
  @override
  Widget build(BuildContext context) {
    return ElevatedButton(
      onPressed: () => {
        var response = await http.post(url, body: requestbody);
        print('Response status: ${response.statusCode}');
        print('Response body: ${response.body}');
      },
      child: new Text('Click me'),
    );
  }
}

Upvotes: 1

Views: 746

Answers (1)

Stephen
Stephen

Reputation: 4249

For anonymous functions use => or {} not both. https://dart.dev/guides/language/language-tour#anonymous-functions

Upvotes: 2

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