requests 4.7.0 icon indicating copy to clipboard operation
requests: ^4.7.0 copied to clipboard

a flutter library that helps with http requests and stored cookies

banner-01

Version License

a dart library to make HTTP requests (inspired by python requests module). It comes with JSON support and a lightweight implementation to store cookies like a browser.

Cookies, huh? #

Server side cookies (via response header SET-COOKIE) are stored using the assistance of quiver.cache. Stored cookies will be send seamlessly on the next http requests you make to the same domain (simple implementation, similar to a web browser).

Install #

Add this to your package's pubspec.yaml file:

dependencies:
  requests: ^4.7.0

Usage #

Start by importing the library

import 'package:requests/requests.dart';

Let's make a simple HTTP request

var r = await Requests.get('https://google.com');
r.raiseForStatus();
String body = r.content();

the Response object #

just like in python's request module, the Response object has this functionality

  • r.throwForStatus() - will throw an exception if the response statusCode is not a great success.
  • r.raiseForStatus() - same as throwForStatus
  • r.statusCode - the response status code
  • r.url - the url in the request
  • r.headers - the response headers
  • r.success - a boolean. true indicates that the request was a great success
  • r.hasError - a boolean. true indicates that the request was not a great success
  • r.bytes() - return the body in the response as a list of bytes
  • r.content() - return the body in the response as a string
  • r.json() - recodes the body in the response and returns the result (dynamic type)

Optional Arguments #

  • json - a dynamic object that will be json encoded and then be set as the request's body
  • body - a raw string to be used as the request's body
  • bodyEncoding - default RequestBodyEncoding.FormURLEncoded. will set the content-type header
  • headers - Map<String, String> of custom client headers to add in the request
  • timeoutSeconds - default 10 seconds. after that period of time without server response an exception is thrown
  • persistCookies - default true. if should respect server's command to persist cookie
  • verify - default true. if the SSL verification enabled
  • withCredentials - default false. for dart web to handle cookies, authorization headers, or TLS client certificates

💡 Only one optional argument can be used in a single request body or json

Class Methods #

  • .getHostname(url) - returns the hostname of the given url
  • .clearStoredCookies(hostname) - clears the stored cookies for the hostname
  • .setStoredCookies(hostname, CookieJar) - set the stored cookies for the hostname
  • .getStoredCookies(hostname) - returns a CookieJar of the stored cookies for the hostname
  • .addCookie(hostname, name, value) - add a Cookie to the CookieJar associated to the hostname

Examples #

HTTP post, body encoded as application/x-www-form-urlencoded, parse response as json

var r = await Requests.post(
  'https://reqres.in/api/users',
  body: {
    'userId': 10,
    'id': 91,
    'title': 'aut amet sed',
  },
  bodyEncoding: RequestBodyEncoding.FormURLEncoded);

r.raiseForStatus();
dynamic json = r.json();
print(json!['id']);

HTTP delete

var r = await Requests.delete('https://reqres.in/api/users/10');
r.raiseForStatus();

Ignore SSL self-signed certificate

var r = await Requests.get('https://expired.badssl.com/', verify: false);
r.raiseForStatus();

Play with stored cookies

String url = "https://example.com";
String hostname = Requests.getHostname(url);
await Requests.clearStoredCookies(hostname);

// Set cookies using [CookieJar.parseCookiesString]
var cookies = CookieJar.parseCookiesString("name=value");
await Requests.setStoredCookies(hostname, cookies);

// Add single cookie using [CookieJar.parseCookiesString]
var cookieJar = await Requests.getStoredCookies(hostname);
cookieJar["name"] = Cookie("name", "value");
await Requests.setStoredCookies(hostname, cookieJar);

// Add a single cookie using [Requests.addCookie]
// Same as the above one but without exposing `cookies.dart`
Requests.addCookie(hostname, "name", "value");

More examples can be found in example/.

Business vector created by freepik - www.freepik.com

56
likes
140
pub points
90%
popularity

Publisher

unverified uploader

a flutter library that helps with http requests and stored cookies

Homepage

Documentation

API reference

License

Icon for licenses.MIT (LICENSE)

Dependencies

crypto, hex, http, quiver

More

Packages that depend on requests