Serializing/reviving objects in TS

serializing.ts

class Point {
  constructor(
    public x: number,
    public y: number,
  ) {}
  serialize(): any {
    return {__type: this.constructor.name, x: this.x, y: this.y}
  }
  toString() {
    return `I'm a point: ${this.x}, ${this.y}`
  }
}

const serializableTypes: Record<string, Function> = {
    "Point": Point,
}

// Create sample points
const p1 = new Point(1, 2)
const p2 = new Point(3, 4)

const payload = {p1, p2}
console.log("Payload:", payload)

// Serialize
const serialized = JSON.stringify(payload, (k, v) => {
    if (typeof v === "object" && "serialize" in v) {
        return v.serialize()
    }
    return v
})
console.log("Serialized:", serialized)

// Revive
const parsed = JSON.parse(serialized, (k, v) => {
    if (typeof v === "object" && "__type" in v && v.__type in serializableTypes) {
        const type = serializableTypes[v.__type]
        delete v.__type
        return Object.setPrototypeOf(v, type.prototype)
    }
    return v
})
console.log("Parsed:", parsed)
console.log(`Proof that the object revived correctly:\n\t${parsed.p1}`)