A one-line node.js program to format JSON from a stdin stream, to include in bash scripts

format-json-with-nodejs-one-liner.sh

$ echo '{"a":1}' \
    | node -e \
    "d=[];process.openStdin().on('data',c=>d.push(c)).on('end',()=>console.log(JSON.stringify(JSON.parse(d.join('')),null,2)));"

# =>
# {
#   "a": 1
# }

const readStdin = () => new Promise((resolve) => {
  const chunks = [];
  process
    .openStdin()
    .on("data", (chunk) => chunks.push(chunk))
    .on("end", () => resolve(chunks.join("")));
});