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Fast, Distributed Graph DB > Doc

简明教程

启动

推荐使用 docker-compose 方式：参考使用官网 docker-compose.yml 文件

graphql 默认内省字段

type __Schema {
    types : [__Type!]!
    queryType : __Type!
    mutationType : __Type
    directives : [__Directive!]!
}

type __Type {
    kind : __TypeKind!
    name : String
    description : String

    # OBJECT and INTERFACE only
    fields (includeDeprecated : Boolean = false) : [__Field!]

    # OBJECT only
    interfaces : [__Type!]

    #INTERFACE and UNION only
    possibleTypes : [__Type!]

    # ENUM only
    enumValues (includeDeprecated : Boolean = false) : [__EnumValue!]

    #INPUT_OBJECT only
    inputFields : [__InputValue!]

    #NON_NULL and LIST only
    ofType : __Type

}

type __Field {
    name : String!
    description : String
    args : [__InputValue!]!
    type : __Type!
    isDeprecated : Boolean!
    deprecationReason : String
}

type __InputValue {
    name : String!
    description : String
    type : __Type!
    defaultValue : String
}

type __EnumValue {
    name : String!
    description : String
    isDeprecated : Boolean!
    deprecationReason : String
}

enum __TypeKind {
    SCALAR
    OBJECT
    INTERFACE
    UNION
    ENUM
    INPUT_OBJECT
    LIST
    NON_NULL
}

type __Directive {
    name : String!
    description : String
    locations : [__DirectiveLocation!]!
    args : [__InputValue!]!
}

enum __DirectiveLocation {
    QUERY
    MUTATION
    FIELD
    FRAGMENT_DEFINITION
    FRAGMENT_SPREAD
    INLINE_FRAGMENT
}

查询当前的内部结构

# graphql query
{
  __schema {
    queryType {
      name
      kind
      description
      fields {
        name
        type {
          name
          kind
        }
        args {
          name
          type {
            name
            kind
            ofType {
              name
              kind
            }
          }
          defaultValue
          description
        }
      }
    }
    mutationType {
      name
      kind
      description
      fields {
        name
        type {
          name
          kind
        }
        args {
          name
          type {
            name
            kind
            ofType {
              name
              kind
            }
          }
          defaultValue
          description
        }
      }
    }
    directives {
      name
      description
      args {
        name
        type {
          name
          kind
          ofType {
            name
            kind
          }
        }
        defaultValue
        description
      }
    }
  }
}

学习步骤

定义 schema 结构

数据管理

• 插入数据

• 修改数据

及联删除

upsert {
  query {
    var(func: type(Person)) {
      Person as uid
    }
  }
  mutation {
      delete {
       uid(Person) * * .
      }
  }
}

• 查询数据

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