GraphQL Get Entire Schema Using Introspection

introspection.graphql

__schema {
  description
  queryType {
    kind
    name
  }
  mutationType {
    kind
    name
  }
  subscriptionType {
    kind
    name
  }
  directives {
    name
    description
    isRepeatable
    locations
    args {
      name
      defaultValue
      type {
        kind
        name
        ofType {
          kind
          name
          ofType {
            kind
            name
            ofType {
              kind
              name
            }
          }
        }
      }
    }
  }
  types {
    kind
    name
    description
    specifiedByUrl
    enumValues {
      name
      description
    }
    fields (includeDeprecated:true) {
      name
      description
      isDeprecated
      type {
        kind
        name
        ofType {
          kind
          name
          ofType {
            kind
            name
            ofType {
              kind
              name
            }
          }
        }
      }
      args {
        name
        defaultValue
        type {
          kind
          name
          ofType {
            kind
            name
            ofType {
              kind
              name
              ofType {
                kind
                name
              }
            }
          }
        }
      }
    }
    interfaces { 
      kind
      name
      description
      specifiedByUrl
    }
    possibleTypes { 
      kind
      name
      description
      specifiedByUrl
    }
    inputFields {
      name
      description
      type {
        kind
        name
        ofType {
          kind
          name
          ofType {
            kind
            name
            ofType {
              kind
              name
            }
          }
        }
      }
      defaultValue
    }
    ofType {
      kind
      name
      description
      specifiedByUrl
    }
  }
}