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Let's say I have a generic type like bellow

type GeneratePipeline<T = any> = {
        localField: keyof T;
    }

and interface User

interface User {
  email : string,
  password : string,
  generalInfo : {
    firstName: string
    lastName : string
    departmentId : string
  }
}

then I Create a type for GeneratePipeline by User

const UserPipeLine :GeneratePipeline<User>  = {
  localField : "generalInfo.departmentId"
}

Typescript throws an error at the line "generalInfo.departmentId".

How can I solve this issue? Thanks

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  • Thanks for answer, but that's not my issue Commented May 19, 2023 at 4:25
  • 1
    typescriptlang.org/play?#code/… Commented May 19, 2023 at 5:36

1 Answer 1

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You can create another interface for generalInfo and use it in the UserPipeLine.

interface GeneralInfo {
  firstName: string
  lastName : string
  departmentId : string
}

interface User {
  email : string,
  password : string,
  generalInfo: GeneralInfo
}

const UserPipeLine :GeneratePipeline<User & GeneralInfo>  = {
  localField : "departmentId"
}
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1 Comment

Hi, I need that field have value generalInfo.departmentId because I will put that object into another parser function.

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