heejunghwang/hero-movie

graphql test

1. get hero

{
  hero {
    name
  }
}

Result :

{
  "data": {
    "hero": {
      "name": "R2-D2"
    }
  }
}

2. get hero and friends

{
  hero {
    name
    friends {
      name
    }
  }
}

Result :

{
  "data": {
    "hero": {
      "name": "R2-D2",
      "friends": [
        {
          "name": "Luke Skywalker"
        },
        {
          "name": "Han Solo"
        }
      ]
    }
  }
}

3. get human with parameter query

{
  human(id: "1000") {
    name
    height
  }
}

Result :

{
  "data": {
    "human": {
      "name": "Luke Skywalker",
      "height": 1.72
    }
  }
}

4. set alias

{
  empireHero : hero {
    name
    friends {
      name
    }
  }
 
  jediHero : human(id: "1000") {
    name
    height
  }
}

Result :

{
  "data": {
    "empireHero": {
      "name": "R2-D2",
      "friends": [
        {
          "name": "Luke Skywalker"
        },
        {
          "name": "Han Solo"
        }
      ]
    },
    "jediHero": {
      "name": "Luke Skywalker",
      "height": 1.72
    }
  }
}

5. How to check meta data type

{
  human {
    __typename
    ... on Human {
      name
    }
  }
}

Result :

{
  "data": {
    "human": {
      "__typename": "Human",
      "name": "Luke Skywalker"
    }
  }
}

6. You can reuse the parameter using fragment

query HeroComparison{
  leftComparison: human {
    ...comparisonFields
  }
  rightComparison: human {
    ...comparisonFields
  }
}

fragment comparisonFields on Human {
  name
  height
}

Result :

{
  "data": {
    "leftComparison": {
      "name": "Luke Skywalker",
      "height": 1.72
    },
    "rightComparison": {
      "name": "Luke Skywalker",
      "height": 1.72
    }
  }
}

7. query with parameter

query HeroNameAndFriends($episode: Episode) {
  getHeroByEpisode(episode: $episode) {
    name
    
  }
}

{
  "episode": "JEDI"
}

Result :

{
  "data": {
    "getHeroByEpisode": {
      "name": "Jedi"
    }
  }
}

8. You can show the result by the given parameters.

query Hero($episode: Episode, $withFriends: Boolean!) {
  getHeroByEpisode(episode: $episode) {
    name
    friends @include(if: $withFriends) {
      name
    }
  }
}

{
  "episode": "JEDI",
  "withFriends": true
}

When withFriends, it will show the result of the friends

Result :

{
  "data": {
    "getHeroByEpisode": {
      "name": "Jedi",
      "friends": [
        {
          "name": "Hulk"
        }
      ]
    }
  }
}