Apollo服务器-GraphQL-语法错误：预期名称，已找到）

我看到有很多问题与我有关，但不幸的是，没有一个对我有用。这就是为什么我问我的问题，因为我还在学习GraphQL

我正在使用NestJS、GraphQL和Angular进行一个项目。我使用Apollo客户端和Apollo服务器来实现GraphQL。我的方法是先编写代码，然后创建模式。我在执行更新时出错。我使用PostgreSQL作为数据库

下面是生成的模式的突变部分

type Mutation {
  updateVehicle(email: String!, vinNumber: String!, lastName: String!, firstName: String!, id: Int!): Vehicle!
  deleteVehicle(id: Int!): Vehicle!
}

这是更新的解析器

 @Mutation(returns => Vehicle)
  async updateVehicle(
    @Args({name: 'id', type: () => Int }) id: number,
    @Args({name: 'firstName', type: () => String }) firstName: string, 
    @Args({name: 'lastName', type: () => String }) lastName: string, 
    @Args({name: 'vinNumber', type: () => String }) vinNumber: string, 
    @Args({name: 'email', type: () => String }) email: string) {
....
...
}

这是我在阿波罗服务器的操场上尝试的查询

mutation MyMutation(
  $id: Int!, 
  $email:String!, 
  $firstName:String!, 
  $lastName:String!, 
  $vinNumber:String!){
  updateVehicle(
    id: $id,
    email: $email,
    firstName: $firstName,
    lastName: $lastName,
    vinNumber: $vinNumber){
      id
      email
      firstName
      lastName
      vinNumber
  }
}

在查询变量部分，我将我的值放在下面

{
  "id": 2,
  "firstName":"test",
  "lastName": "test2",
  "vinNumber": "1234",
  "email": "test@live.com"
}

当我执行查询时，我得到下面的错误消息。事实上，我不明白这是什么意思

{
  "errors": [
    {
      "message": "Syntax Error: Expected Name, found \")\".: {\"response\":{\"errors\":[{\"message\":\"Syntax Error: Expected Name, found \\\")\\\".\",\"locations\":[{\"line\":3,\"column\":5}]}],\"status\":400},\"request\":{\"query\":\"{updateVehicleById(\\n      input: {vehiclePatch: {id: 2}\\n    ) {\\n      vehicle {\\n        ageOfVehicle  \\n        carMake \\n        carModel \\n        email\\n        firstName  \\n        id\\n        lastName\\n        manufacturedDate\\n        vinNumber\\n      }\\n    }}\"}}",
      "locations": [
        {
          "line": 2,
          "column": 3
        }
      ],
      "path": [
        "updateVehicle"
      ],
      "extensions": {
        "code": "INTERNAL_SERVER_ERROR",
        "exception": {
          "response": {
            "errors": [
              {
                "message": "Syntax Error: Expected Name, found \")\".",
                "locations": [
                  {
                    "line": 3,
                    "column": 5
                  }
                ]
              }
            ],
            "status": 400
          },
          "request": {
            "query": "{updateVehicleById(\n      input: {vehiclePatch: {id: 2}\n    ) {\n      vehicle {\n        ageOfVehicle  \n        carMake \n        carModel \n        email\n        firstName  \n        id\n        lastName\n        manufacturedDate\n        vinNumber\n      }\n    }}"
          },
          "stacktrace": [
            "Error: Syntax Error: Expected Name, found \")\".: {\"response\":{\"errors\":[{\"message\":\"Syntax Error: Expected Name, found \\\")\\\".\",\"locations\":[{\"line\":3,\"column\":5}]}],\"status\":400},\"request\":{\"query\":\"{updateVehicleById(\\n      input: {vehiclePatch: {id: 2}\\n    ) {\\n      vehicle {\\n        ageOfVehicle  \\n        carMake \\n        carModel \\n        email\\n        firstName  \\n        id\\n        lastName\\n        manufacturedDate\\n        vinNumber\\n      }\\n    }}\"}}",
            "    at GraphQLClient.<anonymous> (E:\\Virtusa\\vehicle-managment-app\\vehicle-mgt-server3\\node_modules\\graphql-request\\dist\\index.js:170:35)",
            "    at step (E:\\Virtusa\\vehicle-managment-app\\vehicle-mgt-server3\\node_modules\\graphql-request\\dist\\index.js:63:23)",
            "    at Object.next (E:\\Virtusa\\vehicle-managment-app\\vehicle-mgt-server3\\node_modules\\graphql-request\\dist\\index.js:44:53)",
            "    at fulfilled (E:\\Virtusa\\vehicle-managment-app\\vehicle-mgt-server3\\node_modules\\graphql-request\\dist\\index.js:35:58)",
            "    at processTicksAndRejections (internal/process/task_queues.js:97:5)"
          ]
        }
      }
    }
  ],
  "data": null
}

{
“错误”：[
{
“消息”：“语法错误：预期名称，已找到\”\”\“：{”响应\“：{”错误\“：[{”消息\“：\“语法错误：预期名称，已找到\“\”\”\”\”\”，“位置\“：[{{”行\“：3，\“列\“：5}]，“状态\“：400}，\“请求\“：{”查询\“：\”：“{updateVehicleById（\\n输入：{vehiclebyid:{id:2\\n）{{\\n ageOfVehicle\\n carMake\\n carModel\\n email\\n firstName\\n id\\n lastName\\n manufacturedDate\\n vinNumber\\n}\\n}\“}”，
“地点”：[
{
"线":2,，
“专栏”：3
}
],
“路径”：[
“UpdateHicle”
],
“扩展”：{
“代码”：“内部服务器错误”，
“例外情况”：{
“答复”：{
“错误”：[
{
“消息”：“语法错误：应为名称，找到\“\”\”，
“地点”：[
{
"行":3,，
“栏”：5
}
]
}
],
“地位”：400
},
“请求”：{
“查询：{UpdateHiclebyid（\n输入：{vehiclePatch:{id:2}\n）{\n vehicle{\n ageOfVehicle\n carMake\n carModel\n email\n firstName\n id\n lastName\n manufacturedDate\n vinNumber\n}\n}”
},
“stacktrace”：[
“错误：语法错误：预期名称，已找到\“\””，“{”响应\“：{”错误\“：[{”消息\“：\“语法错误：预期名称，已找到\“\”\”\”，“位置\“：[{”行\“：3，\“列\“：5}]，\”状态\“：400}，\“请求\“：{”查询\“：\”{updateVehicleById（\\n输入：{vehiclebyid:{id:2\\n）\\\n）{{\\n ageOfVehicle\\n carMake\\n carModel\\n email\\n firstName\\n id\\n lastName\\n manufacturedDate\\n vinNumber\\n}\\n}\“}”，
“在GraphQLClient上。（E:\\Virtusa\\vehicle management app\\vehicle-mgt-server3\\node\u modules\\graphql request\\dist\\index.js:170:35）”，
“在步骤（E:\\Virtusa\\vehicle management app\\vehicle-mgt-server3\\node\u modules\\graphql request\\dist\\index.js:63:23）”中，
“在Object.next（E:\\Virtusa\\vehicle management app\\vehicle-mgt-server3\\node\u modules\\graphql request\\dist\\index.js:44:53）”中，
“至少（E:\\Virtusa\\vehicle management app\\vehicle-mgt-server3\\node\u modules\\graphql request\\dist\\index.js:35:58）”，
“在处理和拒绝时（内部/process/task_queues.js:97:5）”
]
}
}
}
],
“数据”：空
}

---

我将完整的错误消息放在这里供您参考。我可以知道此错误的原因吗？我也尝试过更改查询和变异。但它不起作用。感谢您的帮助回答。

此问题中的代码是错误的，但错误清楚地说明了问题所在：

  "extensions": {
    "code": "INTERNAL_SERVER_ERROR",
    "exception": {
      "response": {
        "errors": [
          {
            "message": "Syntax Error: Expected Name, found \")\".",
            "locations": [
              {
                "line": 3,
                "column": 5
              }
            ]
          }
        ],
        "status": 400
      },
      "request": {
        "query": "{updateVehicleById(\n      input: {vehiclePatch: {id: 2}\n    ) {\n      vehicle {\n        ageOfVehicle  \n        carMake \n        carModel \n        email\n        firstName  \n        id\n        lastName\n        manufacturedDate\n        vinNumber\n      }\n    }}"
      },
      "stacktrace": [
        "Error: Syntax Error: Expected Name, found \")\".: {\"response\":{\"errors\":[{\"message\":\"Syntax Error: Expected Name, found \\\")\\\".\",\"locations\":[{\"line\":3,\"column\":5}]}],\"status\":400},\"request\":{\"query\":\"{updateVehicleById(\\n      input: {vehiclePatch: {id: 2}\\n    ) {\\n      vehicle {\\n        ageOfVehicle  \\n        carMake \\n        carModel \\n        email\\n        firstName  \\n        id\\n        lastName\\n        manufacturedDate\\n        vinNumber\\n      }\\n    }}\"}}",
        "    at GraphQLClient.<anonymous> (E:\\Virtusa\\vehicle-managment-app\\vehicle-mgt-server3\\node_modules\\graphql-request\\dist\\index.js:170:35)",
        "    at step (E:\\Virtusa\\vehicle-managment-app\\vehicle-mgt-server3\\node_modules\\graphql-request\\dist\\index.js:63:23)",
        "    at Object.next (E:\\Virtusa\\vehicle-managment-app\\vehicle-mgt-server3\\node_modules\\graphql-request\\dist\\index.js:44:53)",
        "    at fulfilled (E:\\Virtusa\\vehicle-managment-app\\vehicle-mgt-server3\\node_modules\\graphql-request\\dist\\index.js:35:58)",
        "    at processTicksAndRejections (internal/process/task_queues.js:97:5)"
      ]
    }
  }

错误显示在第3行第5列，我们可以看到错误在

）{

，仔细看，我们可以看到真正的错误在前一行：

input: {vehiclePatch: {id: 2}

---

此输入对象的

}

不匹配，因此需要额外的

}

在这行的末尾。

有什么乱七八糟的…你的查询/变异和错误来自两个不同的世界/部分-看起来像

updatehiclebile

解析器在内部发出一个请求

updatehiclebyid

-断开的查询，缺少参数，等等。除了我的变异，我调用了Postgraphile端点。它是

updatehiclebyid

问题就在那里。我现在解决了。谢谢你的回复。问题已经解决了，多亏了你。事实上，我忘了检查邮件查询。我真的很感谢你的快速回复。

input: {vehiclePatch: {id: 2}