DEV Community

starpebble
starpebble

Posted on

 

How to explain in GraphQL-esque

Explaining in GraphQL is easy. Write single line comments with #. Offer more verbosity in multi-line descriptions with bracketing """.

Single Line Comment

Start exactly with # to comment a simple single line.

# A snack may or may not be delicious.
type Snack {
  name: String!,
  delicious: Boolean!
}

Perfectly safe in a GraphQL schema.

Multi-Line Description

Bracket a multi-line comment with """. GraphQL schema tools are smart. Multi-line descriptions are useful to tools like Graphiql.

"""
A shirt.
It is a really simple type.
"""
type Shirt {
"""
The size of the shirt, like small or medium.
The value depends on the language of the user.
"""
  size: String!,
  threads: Int!,
  thickness: Float!
}

Also safe in a GraphQL schema.

Query Comment

A single line comment is safe in a query. A multi-line description is not.

{
  snack {
    # this comment is safe
    name
  }
}

Possible in a GraphQL query.

Lack of comments is like a pandemic

GraphQL is for people. I don't disagree with code clarity as documentation. Sometimes people who have nothing to do with code may read a GraphQL text block. It's shocking. Let's not forget that comments are fundamentally for our hyper connected readers. I don't know if there is a better way.

Top comments (0)

An Animated Guide to Node.js Event Loop

Node.js doesn’t stop from running other operations because of Libuv, a C++ library responsible for the event loop and asynchronously handling tasks such as network requests, DNS resolution, file system operations, data encryption, etc.

What happens under the hood when Node.js works on tasks such as database queries? We will explore it by following this piece of code step by step.