durable-utils/experimental/region-placer.js

Utilities for Cloudflare Durable Objects and Workers, including SQL migrations, sharding and retry utilities, and more.

"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/experimental/region-placer.ts
var region_placer_exports = {};
__export(region_placer_exports, {
  RegionPlaceableTarget: () => RegionPlaceableTarget,
  RegionPlaceableWorkerEntrypoint: () => RegionPlaceableWorkerEntrypoint,
  RegionPlacer: () => RegionPlacer,
  RegionPlacerDO: () => RegionPlacerDO
});
module.exports = __toCommonJS(region_placer_exports);
var import_cloudflare_workers = require("cloudflare:workers");
var RegionPlacerDO = class extends import_cloudflare_workers.DurableObject {
  async createExecutorStub(bindingName, locationHint) {
    if (!this.env[bindingName]?.createRegionPlacedWorkerEntrypoint) {
      throw new Error("RegionPlacerDO: invalid bindingName given");
    }
    return this.env[bindingName].createRegionPlacedWorkerEntrypoint(locationHint);
  }
};
var RegionPlacer = class extends import_cloudflare_workers.WorkerEntrypoint {
  async place(locationHint, bindingName) {
    return await createDOStub(this.env, locationHint).createExecutorStub(bindingName, locationHint);
  }
};
var RegionPlaceableWorkerEntrypoint = class extends import_cloudflare_workers.WorkerEntrypoint {
  async createRegionPlacedWorkerEntrypoint(locationHint) {
    return new RegionPlaceableTarget(this, locationHint);
  }
  async regionPlace(locationHint) {
    const thisClassName = Object.getPrototypeOf(this)?.constructor?.name;
    if (!thisClassName) {
      throw new Error("could not infer the class name of the WorkerEntrypoint attempting to regionPlane()");
    }
    let bindingName = "";
    Object.getOwnPropertyNames(this.env).forEach((value) => {
      if (value.toLowerCase() === thisClassName.toLowerCase()) {
        bindingName = value;
      }
    });
    if (!bindingName) {
      throw new Error(
        `could not find the right Binding to invoke on this.env. Inferred binding name not found is '${thisClassName}'`
      );
    }
    return createDOStub(this.env, locationHint).createExecutorStub(bindingName, locationHint);
  }
};
var RegionPlaceableTarget = class extends import_cloudflare_workers.RpcTarget {
  #locationHint;
  constructor(we, locationHint) {
    super();
    this.#locationHint = locationHint;
    const targetPrototype = Object.getPrototypeOf(we);
    const thisPrototype = Object.getPrototypeOf(this);
    Object.getOwnPropertyNames(targetPrototype).forEach((value) => {
      if (value === "constructor" || value === "regionPlace" || typeof targetPrototype[value] !== "function") {
        return;
      }
      thisPrototype[value] = targetPrototype[value];
    });
  }
  async targetLocationHint() {
    return this.#locationHint;
  }
};
function createDOStub(env, locationHint) {
  const shard = Math.ceil(Math.random() * 100);
  const doId = env.RegionPlacerDO.idFromName(`region-placer-${locationHint}-${shard}`);
  const doStub = env.RegionPlacerDO.get(doId, {
    locationHint
  });
  return doStub;
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  RegionPlaceableTarget,
  RegionPlaceableWorkerEntrypoint,
  RegionPlacer,
  RegionPlacerDO
});