使 Mongoose 文档接口与由 graphql-codegen 生成的接口兼容

如何解决使 Mongoose 文档接口与由 graphql-codegen 生成的接口兼容

所以我创建了数据库模型并在我的 Node.js 应用程序中测试了我的服务，它们似乎工作正常。我遇到的问题是当我尝试将我从数据库返回的文档连接到我的 GraphQL 服务时。我通常得到这个，不是所有的时间

Type 'string | null | undefined' is not assignable to type 'string | undefined'.
  Type 'null' is not assignable to type 'string | undefined'.

我明白为什么会发生这个错误，这是有道理的。在 graphql-codegen 生成的代码中，我得到 Maybe，我认为这假设您可以获得 undefined 或 null。我的文档界面如下

export interface IExperience extends Document {
    userId: string;
    title: string;
    description: string;
    type?: string;
    category?: ICategory;
    state: ExperienceState;
    requests?: IRequest[];
    images?: string;
    originDate: Date;
    finalDate?: Date;
    origin?: ILocation;
    destination?: ILocation;
}

现在我可能可以通过添加“| null”来修复它，但必须有更好的解决方案，我只是觉得我可能以错误的方式使用这些工具。奇怪的是我并没有一直收到这个错误。

所以当我创建一个 experience 时我没有遇到任何问题以下是我的 .graphql 文件中的 create experience。

createExperience(
    title: String!
    description: String!
    type: String!
    state: String
    originDate: Date!
    finalDate: Date
    origin: LocationInput!
    destination: LocationInput
  ): Experience

但是当我更新 experience 时，除了 ID 之外的所有字段都出现上述错误以下是我的 .graphql 文件中的 updateExperience

updateExperience(
    _id: ID!
    title: String
    description: String
    type: String
    state: String
    originDate: String
    finalDate: String
    origin: LocationInput
    destination: LocationInput
  ): Experience

下图您可以在 Visual Studio Code 上看到错误

以下是createExperience和updateExperience的接口

export interface ICreateExperience {
    userId: IExperience['userId'];
    title: IExperience['title'],description: IExperience['description'];
    type?: IExperience['type'];
    state: IExperience['state'];
    category?: IExperience['category'];
    requests?: IExperience['requests'];
    images?: IExperience['images'];
    originDate: IExperience['originDate'];
    finalDate?: IExperience['finalDate'];
    origin: IExperience['origin'];
    destination?: IExperience['destination'];
}


interface IUpdateExperience {
    [key: string]: string | undefined | IExperience['category'] | IExperience['requests'] | IExperience['originDate'] | IExperience['origin'],_id: IExperience['_id'];
    title?:IExperience['title'] ;
    description?: IExperience['description'];
    type?: IExperience['type'];
    category?: IExperience['category'];
    state?: IExperience['state'];
    requests?: IExperience['requests'];
    images?: IExperience['images'];
    originDate?: IExperience['originDate'];
    finalDate?: IExperience['finalDate'];
    origin?: IExperience['origin'];
    destination?: IExperience['destination'];
}