Node.js fs.createWriteStream() Method
The createWriteStream() method is an inbuilt application programming interface of fs module which allows to quickly make a writable stream for the purpose of writing data to a file. This method may be a smarter option compared to methods like fs.writeFile when it comes to very large amounts of data.
fs.createWriteStream( path, options )
Parameters: This method accept two parameters as mentioned above and described below:
- path: This parameter holds the path of the file where to read the file. It can be String, Buffer or URL.
- options: It is an optional parameter that holds string or object.
Return Value: This method returns the fs.writeStream object.
Following example illustrates the createWriteStream() method in Node.js:
Example 1: This example uses fs.createWriteStream() method to write some content into the file.
test_gfg.txt file data: GeeksforGeeks
Example 2: Piping from readable streams.
With writable streams such as the streams created with fs.createWriteStream, data can be piped from a readable stream.