Simple module to check if certain servers out there support HTTP/2.
$ npm install --save is-http2
To make is-http2 work, you need to have openssl in a version greater than 1.0.0 installed and available in your $path.
Description : Check if server behind given url supports HTTP/2
url : Url to check HTTP/2 support for
- includeSpdy : optional: should SPDY be considered HTTP/2
- openssl : optional: specify custom openssl command (i.e. '/usr/local/Cellar/openssl/1.0.2k/bin/openssl')
isHttp2 returns a Promise which will be resolved with an Object containing isHttp2 and supportedProtocols.
const isHttp2 = require( 'is-http2' );
isHttp2( 'twitter.com', { includeSpdy : true } )
.then( function( result ) {
if ( result.isHttp2 ) {
console.log( `${ chalk.green( '✓' ) } HTTP/2 supported by ${ host }` );
} else {
console.log( `${ chalk.red( '×' ) } HTTP/2 not supported by ${ host }` );
}
if ( result.supportedProtocols ) {
console.log(
`Supported protocols: ${ result.supportedProtocols.join( ' ' ) }`
);
}
} )
.catch( function( error ) {
console.error( chalk.red( error ) );
process.exit( 1 );
} );