What is the best way to change the user profile type?

Question

What is the best way to change the user profile type?

According to the meteor-typescript's definition file, the user.profile is typed as any.

Is there a Typescript method to extend the user object and modify the profile type?

I attempted the following:

interface IMyUserProfile {
  foo: boolean;
}

namespace Meteor {
  export interface User: {
    profile: IMyUserProfile
  }
}

However, TypeScript returns an error stating "duplicate identifier".

I am aware that I could directly edit the definitions file, but for obvious reasons, I would rather avoid doing so.

meteor typescript

Answer 1

Answer №1

When it comes to Typescript, there is a feature known as declaration merging. However, in order for this to work effectively, you need to add a property that isn't already present. For instance:

namespace Meteor {
    export interface User {
        newProperty: any;
    }
}

The issue arises when attempting to merge with the existing User interface and encountering the complaint from the compiler.

To address this, consider creating a new interface like so:

namespace Meteor {
    export interface MyUser extends User {
        profile: IMyUserProfile;
    }
}

Then simply cast the user instance to Meteor.MyUser. Additionally, you have the option to remove it from the Meteor namespace entirely:

export interface MyUser extends Meteor.User {
    profile: IMyUserProfile;
}

Answer 2

When it comes to Typescript, there is a feature known as declaration merging. However, in order for this to work effectively, you need to add a property that isn't already present. For instance:

namespace Meteor {
    export interface User {
        newProperty: any;
    }
}

The issue arises when attempting to merge with the existing User interface and encountering the complaint from the compiler.

To address this, consider creating a new interface like so:

namespace Meteor {
    export interface MyUser extends User {
        profile: IMyUserProfile;
    }
}

Then simply cast the user instance to Meteor.MyUser. Additionally, you have the option to remove it from the Meteor namespace entirely:

export interface MyUser extends Meteor.User {
    profile: IMyUserProfile;
}

What is the best way to change the user profile type?

Answer №1

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