Check if a HTTP response is successful.

Usage no npm install needed!

<script type="module">
  import isOk from '';


is-ok Build Status

Check if a HTTP response is successful.

npm install is-ok


Used together with request or the built-in http module.

Accepts a response object, with a statusCode property, as first argument and returns true if the status code was within the 2xx range, otherwise it returns false.

Optionally it takse a callback as second argument, which is called with an error object only if the response was non-successful. The error has statusCode, headers and body properties set, copied from the response.

var request = require('request');
var isOk = require('is-ok');

var fetch = function(url, callback) {
    request.get(url, function(err, response, body) {
        if(err) return callback(err);
        if(!isOk(response, callback)) return;

        callback(null, body);