Today I Learned

A Hashrocket project

Pretty Print JSON responses from `curl` - Part 2

After posting my last TIL , Vinicius showed me another tool that goes beyond just pretty printing: jq

If you don’t pass any args to jq it will just pretty print same as json_pp:

> curl 'https://til.hashrocket.com/api/developer_posts.json?username=gabrielreis' | jq

{
  "data": {
    "posts": [
      {
        "title": "Pretty Print JSON responses from `curl`",
        "slug": "pgyjvtuwba"
      },
      {
        "title": "Display line break content in React with just CSS",
        "slug": "mmzlajavna"
      },
      {
        "title": "Mutations with the graphql-client Ruby gem",
        "slug": "xej7xtsnit"
      }
    ]
  }
}

What if you only want to display the first post on the response? Just pass an argument to filter the keys you want. It’s like Xpath for JSON: jq '.data.posts[0]'

> curl 'https://til.hashrocket.com/api/developer_posts.json?username=gabrielreis' | jq '.data.posts[0]'

{
  "title": "Pretty Print JSON responses from `curl`",
  "slug": "pgyjvtuwba"
}

See Part 3