JAUL

JAUL = Just Another Utilities Library

What? Why?

Because to this date I still haven't found a good mix of small utilities modules for my projects.

If it fails, it throws

You'll never need to guess what's going on behind the scenes. For instance if you try to minify an invalid JSON, it will throw an exception.

Exceptions with friendly messages

Exceptions thrown on methods might have a friendlyMessage property appended to them with extra information.

What types of utilities?

They're separated on the following areas:

• Data
• IO
• Network
• System

Data Utils

const jaul = require("jaul")

// Removing characters from string
jaul.data.removeFromString("A1A2A3", "A") // 123
jaul.data.removeFromString("A1A2A3", ["1", "2", "3"]) // AAA

// Masking phone numbers
jaul.data.maskString("55-1234-5678") // **-****-****
jaul.data.maskString("55-1234-5678", "#", 4) // ##-####-5678

// Minify JSON
jaul.data.minifyJson(someJsonStringWithComments) // JSON object

// Returns a random RFC4122 UID
jaul.data.uuid() // ex. 12345678-1234-4444-y123-123457890111

IO Utils

const jaul = require("jaul")

// Finds out the full path to the desired filename
jaul.io.getFilePath("package.json") // finds the package.json full path
jaul.io.getFilePath("some-file.js", __dirname) // specifying __dirname as base path

// Copy file from source to target, sync
jaul.io.copyFileSync("./source-file.json", "./folder/target.json") // void

// Ensure that target folder exists, recursively creating folders
jaul.io.mkdirRecursive("path/to/some/deep/folder") // void

// Sleep code execution helper
await jaul.io.sleep(1000) // wait 1 second

Network Utils

const jaul = require("jaul")

// Get list of valid IPs on the system
jaul.network.getIP("ipv4") // array of IPv4 addresses
jaul.network.getIP("ipv6") // array of IPv6 addresses
jaul.network.getSingleIPv4() // first valid IPv4 address
jaul.network.getSingleIPv6() // first valid IPv6 address

// Get IP address of client
jaul.network.getClientIP(req) // IP address from http / express request object
jaul.network.getClientIP(sock) // IP address from websocket request object

// Check if specified IP is in range
jaul.network.ipInRange("192.168.0.1", "192.168.0.0/24") // true
jaul.network.ipInRange("10.0.0.1", "192.168.0.0/32") // false

System Utils

const jaul = require("jaul")

// Get a summary of current system stats
jaul.system.getInfo() // returns stats with labels (uptime, hostname, platform etc)
jaul.system.getInfo({labels: false}) // returns stats without labels

// Get current CPU load
jaul.system.getCpuLoad() // returns CPU load info

API documentation

You can browse the full API documentation at https://jaul.devv.com.

Or check these following modules that are using Jaul:

• Expresser
• Monitorado