Pretty print piped JSON

jsonPrint.js

#!/usr/bin/env node
var data = ''

process.stdin.resume()
process.stdin.setEncoding('utf8')

process.stdin.on('data', function(chunk) {
  data += chunk;
})

process.stdin.on('end', function() {
  try {
    const jsonObj = JSON.parse(data)  
    console.log(`--- <JSON print> ---`)
    console.log(JSON.stringify(jsonObj, null, 2))
    console.log(`--- <JSON print/> ---`)
  } catch (e) {
    console.log(`--- JSON print: No valid JSON found, plain output: ---`)
    console.log(data)
  }
  
  process.exit(0)
})

PrettyPrintJson.md

Install

• Download jsonPrint.js
• Make it executable (chmod +x ~/Download/jsonPrint.js)
• Move it into your bin folder (mv jsonPrint.js /usr/local/bin/)

Use

curl http://some-random-json-api.com/json/data | jsonPrint