html to png validate body

index.ts

interface Body {
    html: string;
    width: number;
    height: number;
    name: string;
}

const validateBody = (body: any): Body => {
    if (typeof body.html !== "string") {
        throw new Error("Unsupported html type");
    }
    if (typeof body.width !== "number" && typeof body.height !== "number") {
        throw new Error("Unsupported dimensions");
    }
    if (typeof body.name !== "string" && !body.name) {
        throw new Error("Name should be of type string and not empty");
    }

    return body as Body;
};