GraphQL：从头开始
GraphQL 既是一种用于 API 的查询语言也是一个满足你数据查询的运行时。GraphQL 对你的 API 中的数据提供了一套易于理解的完整描述，使得客户端能够准确地获得它需要的数据，而且没有任何冗余，也让 API 更容易地随着时间推移而演进，还能用于构建强大的开发者工具。
——出自 https://graphql.cn
using HotChocolate;using HotChocolate.Execution;using HotChocolate.Types;using System;namespace GraphQLBase001{class Program{static void Main(string[] args){var schemaString = @"type Query {hello: String}";Console.WriteLine("Schema-First");SchemaFirst.Run(schemaString);Console.WriteLine("Schema-First");CodeFirst.Run(schemaString);Console.WriteLine("PurCode-First");PureCodeFirst.Run();C.Run(schemaString);D.Run(schemaString);E.Run();}}public class SchemaFirst{public static void Run(string schemaString){var schema = SchemaBuilder.New().AddDocumentFromString(schemaString).AddResolver("Query", "hello", () => "world").Create();var executor = schema.MakeExecutable();Console.WriteLine(executor.Execute("{ hello }").ToJson());}}public class CodeFirst{public static void Run(string schemaString){var schema = SchemaBuilder.New().AddDocumentFromString(schemaString).BindComplexType<Query>().Create();var executor = schema.MakeExecutable();Console.WriteLine(executor.Execute("{ hello }").ToJson());}public class Query{/// <summary>/// 目测这里只对Hello或GetHello免疫/// </summary>/// <returns></returns>public string Hello() => "world";}}public class PureCodeFirst{public static void Run(){var schema = SchemaBuilder.New().AddQueryType<Query>().Create();var executor = schema.MakeExecutable();Console.WriteLine(executor.Execute("{ hello }").ToJson());}public class Query{/// <summary>/// 目测这里只对Hello或GetHello免疫/// </summary>/// <returns></returns>public string Hello() => "world";}}}