DataWeave 2.2 is compatible and bundled with Mule 4.2. Standard Support for Mule 4.2 ended on May 2, 2021, and this version of Mule will reach its End of Life on May 2, 2023, when Extended Support ends.

Deployments of new applications to CloudHub that use this version of Mule are no longer allowed. Only in-place updates to applications are permitted.

MuleSoft recommends that you upgrade to the latest version of Mule 4 that is in Standard Support so that your applications run with the latest fixes and security enhancements.

readLinesWith(Binary, String): Array<String>

Splits the specified binary content into lines and returns the results in an array.

Introduced in DataWeave 2.2.0. Supported by Mule 4.2 and later.


Name Description


Binary data to read and split.


String representing the encoding to read.


This example transforms binary content, which is separated into new lines (\n), in a comma-separated array.


%dw 2.0
import * from dw::core::Binaries
var content = read("Line 1\nLine 2\nLine 3\nLine 4\nLine 5\n", "application/octet-stream")
output application/json
   lines : (content readLinesWith "UTF-8"),
   showType: typeOf(content)


   "lines": [ "Line 1", "Line 2", "Line 3", "Line 4", "Line 5" ],
   "showType": "Binary"

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