Make parallel HEAD requests for an array of URLs and get back their HTTP status codes.
You've got a collection of URLs, and you want to make sure they're all working.
If you just need to check whether a URL is resolving, a HEAD
request is preferable
to a GET
because it only downloads the response headers instead of the whole
response body.
To keep things snappy, heads
makes multiple requests in parallel instead of one
at a time.
npm install heads --save
Heads expects an array of URL strings:
const heads = require("heads")
const urls = [
'https://google.com',
'https://github.com',
'https://github.com/nonexistent-url'
]
heads(urls)
.then(function(codes) {
// [200, 200, 404]
codes.every(code => code === 200)
})
.catch(function(err) {
// handle error
})
Type: string
, array
The URL(s) to check.
See the got
options.
Node-style callbacks are supported too:
heads(urls, function(err, codes) { /*...*/ })
If you just need to look up one URL, pass it as an argument instead of an array:
heads('http://mysite.com').then(...)
npm install
npm test
- async: Higher-order functions and common patterns for asynchronous code
- got: Simplified HTTP requests
- pify: Promisify a callback-style function
- tap-spec: Formatted TAP output like Mocha's spec reporter
- tape: tap-producing test harness for node and browsers
MIT
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