Minimal semantic output writer

npm install miniwrite
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Minimal output-stream writer API.

A pluggable output writer interface/adapter to embed/expose in tools and reporters, also a simplified stream.

This is not a logging framework or full console or stream replacement. Instead this is an abstraction to build on or expose in other tools. Intend as companion to ministyle (et al).


Main usage:

// simplified node.js.browser compatible console.log()
var mw = miniwrite.console();

// write plain text line
mw.writeln('hello world!');


Buffer writes:

// buffer own lines
var mw = miniwrite.buffer();
// buffer other writes (handy for testing)
var mw = miniwrite.buffer(myMiniWrite);

// get buffer
var str = mw.concat();
var str = mw.concat('\n\n', '\t');
// iterate buffer if you must
mw.lines.forEach(function(line) {
// clear buffer

Adapter to buffer character writes via mw.write(chars), auto-flushes on newlines:

var mw = miniwrite.chars(miniwrite.console());

// write plain text line
mw.write(' ');
mw.writeln('world!'); // "hello world\n"

//or accumulate chars
mw.flush(true); // onetwo

// clear buffer
mw.flush(true); // two

Spread of multiple writers

var mw = miniwrite.multi([myANSIConsole, myRemoteSocket, myDiskLogger]);
mw.enabled = true;
mw.targets.forEach(function(subw, num) {
    // .. 

Proxy to toggle stream or swap output target:

var mw = miniwrite.peek(myMiniWrite, callback);
mw.enabled = true; = myOherWrite;
mw.callback = function(line) {
    // return string, or false to ignore

Proxy to toggle stream or swap output target:

var mw = miniwrite.proxy(myMiniWrite);
mw.enabled = true; = myOherWrite; = myOherWrite;

Convenience preset for grunt (same as in grunt ~0.4.1):

var mw = miniwrite.grunt(grunt);


Build your own:

var mw = {};
mw.writeln = function(line) {
    myWebSocketHyperStream.send({line: line})
// pass to supporting tools

Tap into output

awesomeModule.writer = miniwrite.splitter([awesomeModule.writer, myMiniWrite]);


$ npm install miniwrite --save


  • 0.1.2 - Enabled strict mode, split in internal modules
  • 0.1.0 - Extracted styling to ministyle.
  • 0.0.1 - Extracted code from existing projects


Install development dependencies in your git checkout:

$ npm install

~Build and run tests:

$ grunt

See the Gruntfile.js for additional commands.


In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.

Note: this is an opinionated module: please create a ticket to discuss any big ideas. Pull requests for bug fixes are of course always welcome.


Copyright (c) 2013 Bart van der Schoor

Licensed under the MIT license.

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