TypeScript：根据接口使用字符串中的每个键类型填充 JSON object

Question

Is it possible to generate the Json object from interfaces populated with the key type in string? See below the interface example:

export interface shop {
    refNo: Number
    domain?: string[],    
    details: {
        name? : string,
        cui : string,
        contact?: {
            name?: string,
            phone?: string
        }[]
    }

This should be the result:

let shopObj = { 
    refNo: "Number"
    domain?: ["string"], // "Array String"   
    details: {
        name? : "string",
        cui : "string",
        contact?: [{
            name?: "string", 
            phone?: "string"
        }]
    }
}

are there any utilities that do this, does anyone have any idea how this transformation can be done from the interface?

Answer 1

What you're trying to do is impossible, since interfaces are types and not values, so you can't treat it as a value..

The only thing you can do, is initiate a variable and then extract the type of each field by using typeof , but its very off from what you're trying to achieve, and its very crooked and quite ugly..