jlafer-node-util

This is my collection of utility functions that I find useful in nearly all NodeJS projects.

Installation

npm install --save jlafer-node-util

Helper Functions

makeDir(path, mask)

checkDirExists(path)

ensurePathExists(parentPath, mask, ...pathNodes)

copyTextFile(indir, outdir, filename)

openFile(path, mode)

writeToFile = (fd, text)

closeFile = (fd)

openStream = (path)

writeRcdsToStream = (stream, rcds)

writeToStream = (stream, text)

closeStream = (stream)

readTextFile(path)

readJsonFile(path)

readJsonFiles(dir, filenames)

writeToTextFile(path, str)

writeToBinaryFile(path, data)

writeToJsonFile(path, value)

argvToDict(argv)

Converts the argument, typically filled from process.argv, to a dictionary object.

const args = argvToDict(process.argv);
const fileName = args.filename;

getBaseAxiosConfig(baseURL, username, password)

Returns a base Axios configuration that uses Basic authentication.

const baseConfig = getBaseAxiosConfig(
  'https://flex-api.twilio.com/v1/', 'joe', 'blow'
);
return axios({...baseConfig, url: `FlexFlows`});

executeShellCmd(cmd)

Runs the cmd string argument as a command in the NodeJS operating system. The command returns a Promise which resolves to the stdout output on success or the stderr output on a failure.