The url available to make the api calls is https://potter-graphql.herokuapp.com/

Install dependencies with

npm install

You'll need to configurate an env file with a mongo url.

I don't want people adding characters out of my database but requests are welcome.

For retrieving the name of the characters you'll use the next query

{
 characters{
 name
 }
}

For retrieving by field and ordering you'll use this

query getCharacters($field:String!, $sort:Int!){
  characters(field:$field, sort:$sort){
    _id,
    full_name
   }
}

You can use this variables as example to return the characters by name

{
  "field":"full_name",
  "sort":-1
}