Type '{}' is missing the following properties from type ''

Question

enter code here I have a property which is of type any right now. It calls a function which then returns 2 strings in an object.

let datesByMSId: any = await this.entrybyMSId(msId)

The log turns out to look the following.

{
start: '2022-07-20T00:00:00.0000000',
end: '2022-07-21T00:00:00.0000000'
}

I tried to define an interface DeleteVacationPayload which looks like this:

export interface DeleteVacationPayload 
{
start: string, 
end: string 
}

When I implement the interface, i get this error:

Type '{}' is missing the following properties from type 'DeleteVacationPayload': start, end

Here is a snippet of the entrybyMSId function:

    request(options, async function (error, response, body) {
        if (!error) {
            let parsedBody = JSON.parse(body)
            let values:Dates = {
                start: parsedBody.start.dateTime,
                end: parsedBody.end.dateTime
            }
            resolve(values)
        }
    }

I don't really understand why I get this error.

Answer 1

You need to use semicolons when defining the interface.

Try this:

export interface DeleteVacationPayload {
    start: string; 
    end: string;
}

More info about interfaces with Typescript here: https://www.typescriptlang.org/docs/handbook/interfaces.html