@appku/stashku-log
v0.3.3
Published
A StashKu middleware for outputing log messages to console or to a flat file.
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Readme
StashKu Log Middleware
This StashKu middleware project provides logging to console and/or to a rolling file directory. It provides support for
the various severities of StashKu logging: error
, warn
, info
, and debug
.
StashKu Log can also be used independently, without StashKu to simply log in a standardized way that enforces severity
level logging (no console.log
generalities).
This package supports 2 modes of logging, each can be enabled/disabled and configured independently of one another:
"console"
: Outputs logs tostdout
(usually to the terminal). This logger is enabled by default."file"
: Writes logs to a log file on a file-system. Currently under development.
Getting Started
npm i --save @appku/stashku-log
To utilize this middleware with stashku
, this middleware can be passed to StashKu through the configuration to provide functionality.
import log from '@appku/stashku-log';
let stash = new StashKu({
middleware: [log],
'@appku/stashku-log': {
console: {
enabled: true,
severity: 'info',
colors: true,
timestamp: true,
local: true
},
file: {
enabled: false
path: './'
}
}
});
Code Quick-Start
You should utilize your StashKu instance's log
property to make logs function calls. In the absence of StashKu, you can make log calls directly with this library:
Within StashKu
let stash = new StashKu( ... ); ///see Configuration section below
stash.log.debug('Look ma! I am debugging.');
stash.log.info('Look ma! I am pretty.');
stash.log.warn('Look ma! I am smoking.');
stash.log.error('Look ma! I am on fire.');
Without StashKu
import log from '@appku/stashku-log';
log.debug('Look ma! I am debugging.');
log.info('Look ma! I am pretty.');
log.warn('Look ma! I am smoking.');
log.error('Look ma! I am on fire.');
Loading After StashKu Initialization
Alternatively, if not loaded by configuration of the StashKu middleware
property (as shown above), you can use
StashKu's use
middleware function:
import log from '@appku/stashku-log';
myStashKuInst.use(log);
...
Without StashKu
If you are using the stashku-log without StashKu, you can still configure the module, as shown below:
import log from '@appku/stashku-log';
//set the configuration object on the module directly
log.config = {
console: { ... },
file: { ... }
}
...
To configure the library without StashKu, set the config
property on the module or use environmental variables.
Documentation
Formal documentation is available here.
Available Configuration Properties
| Property | ENV | Type | Default |
|-|-|-|-|
| console | | Object
| |
| ↳ console.enabled | STASHKU_LOG_CONSOLE_ENABLED | Boolean
| true
|
| ↳ console.severity | STASHKU_LOG_CONSOLE_SEVERITY | String
| |
| ↳ console.timestamp | STASHKU_LOG_CONSOLE_TIMESTAMP | Boolean
| true
|
| ↳ console.local | STASHKU_LOG_CONSOLE_LOCAL | Boolean
| true
|
| ↳ console.colors | STASHKU_LOG_CONSOLE_COLORS | Boolean
| true
|
| file | | Object
| |
| ↳ file.enabled | STASHKU_LOG_FILE_ENABLED | Boolean
| false
|
You can utilize environmental variables or define the values through a configuration object passed to StashKu.
This project also loads .env
files in it's package directory.
Running
Run npm start
Building
This project uses node.js to run and does not have an explicit build process.
Code Documentation
You can generate a static JSDoc site under the docs/
path using the command npm run docs
.
Testing
This project uses jest
to perform unit tests.
Running Tests
Run npm test
to run jest unit tests.
Run npm run lint
to run ESLint, optionally install the Visual Studio Code ESLint extension to have linting issues show in your "Problems" tab and be highlighted.
If you are writing unit tests, you may need to npm install @types/jest
to get intellisense in Visual Studio Code if for some reason it did not get installed.
Publishing
Only maintainers with proper access can publish this package to npm. To do so as maintainers, you can publish by running the following command:
npm publish --registry=https://registry.npmjs.org --access=public