nodejsHow to read stream to string
const fs = require('fs');
let input = fs.createReadStream('/var/www/examples/test.txt');
const chunks = [];
input.on('data', buf => chunks.push(buf));
input.on('end', () => console.log( Buffer.concat(chunks).toString() ))ctrl + crequire('fs')library to work with file system | fs.createReadStream(create stream to read data from (file in our case) |
/var/www/examples/test.txtpath to file to stream read | .on('data'handle date reading from stream |
chunks.push(buf)push each chunk into array | Buffer.concat(chunks)join all chunks into single buffer |
.toString()convert Buffer to string | input.on('end'fire when stream reading was finished |
Usage example
const fs = require('fs');
let input = fs.createReadStream('/var/www/examples/test.txt');
const chunks = [];
input.on('data', buf => chunks.push(buf));
input.on('end', () => console.log( Buffer.concat(chunks).toString() ))output
hi!