autologger

Javascript utility for automatic logging of functions and classes.

Install

$ npm install autologger --save

Usage

const Autolog = require('autologger');
 
const autolog = Autolog(options)(type)(logger);
 
let target = autolog(target);

Variable	Type	Required
options	object	no
type	string	yes
logger	object	yes
target	function or class	yes

options

Logs the wrapping of a variable by an automatic logger. Must contain two properties:

Properties	Type	Required
preprocess	function	no
postprocess	function	no

type

The type of the variable to which automatic logging is applied. One of the following values:

• class
• function
• method

logger

Logs the call steps. Must contain two properties:

Properties	Type	Required
before	function	yes
after	function	yes

target

The function or class to which automatic logging will be applied.

Example

Logger

const logger = {
    before: console.log,
    after: console.log,
};

Function

const autolog = Autolog()('function')(logger);
 
let example = autolog(function example() { /* ... */ });

Class

const autolog = Autolog()('class')(logger);
 
let Example = autolog(class Example {
    /* ... */
});

with decorators

see js decorators

const autolog = Autolog()('class')(logger);
 
@autolog
class Example {
    /* ... */
}

Class method

const autolog = Autolog()('method')(logger);
 
class Example {
    @autolog
    test() { /* ... */ }
}

License

This project is licensed under MIT.