JSON

JSON is a very popular format. While there are great utilities like jq, powscript also supports basic json:

require     'json'
require_cmd 'curl'

usage(app)
  local example_url="https://raw.githubusercontent.com/coderofsalvation/powscript/master/package.json"
  echo "
  $app <json keys...> --url <json file>

  Description:
    obtains and parses the json file given by the url,
  then prints the data corresponding to the received keys.

  Examples:
    $app version         --url '$example_url'
    $app repository type --url '$example_url'
    $app repository url  --url '$example_url'
  "

run(@keys -- url)
  if empty? url
    echo "Usage: $(usage myapp)" && exit
  data={}
  json=$(curl -s $url)
  json_parse data "$json"
  json_print data $keys[@]

run $@

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