serverless-offline/src/events/websocket/lambda-events/WebSocketDisconnectEvent.js

Emulate AWS λ and API Gateway locally when developing your Serverless project

import WebSocketRequestContext from "./WebSocketRequestContext.js"
import { parseHeaders, parseMultiValueHeaders } from "../../../utils/index.js"

export default class WebSocketDisconnectEvent {
  #connectionId = null

  constructor(connectionId) {
    this.#connectionId = connectionId
  }

  create() {
    // TODO FIXME not sure where the headers come from
    const rawHeaders = ["Host", "localhost", "x-api-key", "", "x-restapi", ""]

    const headers = parseHeaders(rawHeaders)
    const multiValueHeaders = parseMultiValueHeaders(rawHeaders)

    const requestContext = new WebSocketRequestContext(
      "DISCONNECT",
      "$disconnect",
      this.#connectionId,
    ).create()

    return {
      headers,
      isBase64Encoded: false,
      multiValueHeaders,
      requestContext,
    }
  }
}