@data-client/core/legacy/manager/PollingSubscription.js

Async State Management without the Management. REST, GraphQL, SSE, Websockets, Fetch

import DefaultConnectionListener from './DefaultConnectionListener.js';
/**
 * PollingSubscription keeps a given resource updated by
 * dispatching a fetch at a rate equal to the minimum update
 * interval requested.
 *
 * @see https://dataclient.io/docs/api/PollingSubscription
 */
export default class PollingSubscription {
  constructor(action, controller, connectionListener) {
    this.frequencyHistogram = new Map();
    /** What happens when browser goes offline */
    this.offlineListener = () => {
      // this clears existing listeners, so no need to clear offline listener
      this.cleanup();
      this.connectionListener.addOnlineListener(this.onlineListener);
    };
    /** What happens when browser comes online */
    this.onlineListener = () => {
      this.connectionListener.removeOnlineListener(this.onlineListener);
      const now = Date.now();
      this.startId = setTimeout(() => {
        if (this.startId) {
          delete this.startId;
          this.update();
          this.run();
        } else if (process.env.NODE_ENV !== 'production') {
          console.warn(`Poll setTimeout for ${this.key} still running, but timeoutId deleted`);
        }
      }, Math.max(0, this.lastFetchTime() - now + this.frequency));
      this.connectionListener.addOfflineListener(this.offlineListener);
    };
    if (action.endpoint.pollFrequency === undefined) throw new Error('frequency needed for polling subscription');
    this.endpoint = action.endpoint;
    this.frequency = action.endpoint.pollFrequency;
    this.args = action.args;
    this.key = action.key;
    this.frequencyHistogram.set(this.frequency, 1);
    this.controller = controller;
    this.connectionListener = connectionListener || new DefaultConnectionListener();

    // Kickstart running since this is initialized after the online notif is sent
    if (this.connectionListener.isOnline()) {
      this.onlineListener();
    } else {
      this.offlineListener();
    }
  }

  /** Subscribe to a frequency */
  add(frequency) {
    if (frequency === undefined) return;
    if (this.frequencyHistogram.has(frequency)) {
      this.frequencyHistogram.set(frequency, this.frequencyHistogram.get(frequency) + 1);
    } else {
      this.frequencyHistogram.set(frequency, 1);

      // new min so restart service
      if (frequency < this.frequency) {
        this.frequency = frequency;
        this.run();
      }
    }
  }

  /** Unsubscribe from a frequency */
  remove(frequency) {
    if (frequency === undefined) return false;
    if (this.frequencyHistogram.has(frequency)) {
      this.frequencyHistogram.set(frequency, this.frequencyHistogram.get(frequency) - 1);
      if (this.frequencyHistogram.get(frequency) < 1) {
        this.frequencyHistogram.delete(frequency);

        // nothing subscribed to this anymore...it is invalid
        if (this.frequencyHistogram.size === 0) {
          this.cleanup();
          return true;
        }

        // this was the min, so find the next size
        if (frequency <= this.frequency) {
          this.frequency = Math.min(...this.frequencyHistogram.keys());
          this.run();
        }
      }
    } /* istanbul ignore next */else if (process.env.NODE_ENV !== 'production') {
      console.error(`Mismatched remove: ${frequency} is not subscribed for ${this.key}`);
    }
    return false;
  }

  /** Cleanup means clearing out background interval. */
  cleanup() {
    if (this.intervalId) {
      clearInterval(this.intervalId);
      delete this.intervalId;
    }
    if (this.lastIntervalId) {
      clearInterval(this.lastIntervalId);
      delete this.lastIntervalId;
    }
    if (this.startId) {
      clearTimeout(this.startId);
      delete this.startId;
    }
    this.connectionListener.removeOnlineListener(this.onlineListener);
    this.connectionListener.removeOfflineListener(this.offlineListener);
  }

  /** Trigger request for latest resource */
  update() {
    const sup = this.endpoint;
    const endpoint = function endpoint(...args) {
      return sup.call(this, ...args);
    };
    Object.assign(endpoint, this.endpoint);
    endpoint.dataExpiryLength = this.frequency / 2;
    endpoint.errorExpiryLength = this.frequency / 10;
    endpoint.errorPolicy = () => 'soft';
    endpoint.key = () => this.key;
    // stop any errors here from bubbling
    this.controller.fetch(endpoint, ...this.args).catch(() => null);
  }
  /** Run polling process with current frequency
   *
   * Will clean up old poll interval on next run
   */
  run() {
    if (this.startId) return;
    if (this.intervalId) this.lastIntervalId = this.intervalId;
    this.intervalId = setInterval(() => {
      // since we don't know how long into the last poll it was before resetting
      // we wait til the next fetch to clear old intervals
      if (this.lastIntervalId) {
        clearInterval(this.lastIntervalId);
        delete this.lastIntervalId;
      }
      if (this.intervalId) this.update();else if (process.env.NODE_ENV !== 'production') {
        console.warn(`Poll intervalId for ${this.key} still running, but intervalId deleted`);
      }
    }, this.frequency);
  }

  /** Last fetch time */
  lastFetchTime() {
    var _this$controller$getS, _this$controller$getS2;
    return (_this$controller$getS = (_this$controller$getS2 = this.controller.getState().meta[this.key]) == null ? void 0 : _this$controller$getS2.date) != null ? _this$controller$getS : 0;
  }
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["DefaultConnectionListener","PollingSubscription","constructor","action","controller","connectionListener","frequencyHistogram","Map","offlineListener","cleanup","addOnlineListener","onlineListener","removeOnlineListener","now","Date","startId","setTimeout","update","run","process","env","NODE_ENV","console","warn","key","Math","max","lastFetchTime","frequency","addOfflineListener","endpoint","pollFrequency","undefined","Error","args","set","isOnline","add","has","get","remove","delete","size","min","keys","error","intervalId","clearInterval","lastIntervalId","clearTimeout","removeOfflineListener","sup","call","Object","assign","dataExpiryLength","errorExpiryLength","errorPolicy","fetch","catch","setInterval","_this$controller$getS","_this$controller$getS2","getState","meta","date"],"sources":["../../src/manager/PollingSubscription.ts"],"sourcesContent":["import type { EndpointInterface } from '@data-client/normalizr';\n\nimport ConnectionListener from './ConnectionListener.js';\nimport DefaultConnectionListener from './DefaultConnectionListener.js';\nimport type { Subscription } from './SubscriptionManager.js';\nimport type Controller from '../controller/Controller.js';\nimport type { SubscribeAction } from '../types.js';\n\n/**\n * PollingSubscription keeps a given resource updated by\n * dispatching a fetch at a rate equal to the minimum update\n * interval requested.\n *\n * @see https://dataclient.io/docs/api/PollingSubscription\n */\nexport default class PollingSubscription implements Subscription {\n  declare protected readonly endpoint: EndpointInterface;\n  declare protected readonly args: readonly any[];\n  declare protected readonly key: string;\n  declare protected frequency: number;\n  protected frequencyHistogram: Map<number, number> = new Map();\n  declare protected controller: Controller;\n  declare protected intervalId?: ReturnType<typeof setInterval>;\n  declare protected lastIntervalId?: ReturnType<typeof setInterval>;\n  declare protected startId?: ReturnType<typeof setTimeout>;\n  declare private connectionListener: ConnectionListener;\n\n  constructor(\n    action: Omit<SubscribeAction, 'type'>,\n    controller: Controller,\n    connectionListener?: ConnectionListener,\n  ) {\n    if (action.endpoint.pollFrequency === undefined)\n      throw new Error('frequency needed for polling subscription');\n    this.endpoint = action.endpoint;\n    this.frequency = action.endpoint.pollFrequency;\n    this.args = action.args;\n    this.key = action.key;\n    this.frequencyHistogram.set(this.frequency, 1);\n    this.controller = controller;\n    this.connectionListener =\n      connectionListener || new DefaultConnectionListener();\n\n    // Kickstart running since this is initialized after the online notif is sent\n    if (this.connectionListener.isOnline()) {\n      this.onlineListener();\n    } else {\n      this.offlineListener();\n    }\n  }\n\n  /** Subscribe to a frequency */\n  add(frequency?: number) {\n    if (frequency === undefined) return;\n    if (this.frequencyHistogram.has(frequency)) {\n      this.frequencyHistogram.set(\n        frequency,\n        (this.frequencyHistogram.get(frequency) as number) + 1,\n      );\n    } else {\n      this.frequencyHistogram.set(frequency, 1);\n\n      // new min so restart service\n      if (frequency < this.frequency) {\n        this.frequency = frequency;\n        this.run();\n      }\n    }\n  }\n\n  /** Unsubscribe from a frequency */\n  remove(frequency?: number) {\n    if (frequency === undefined) return false;\n    if (this.frequencyHistogram.has(frequency)) {\n      this.frequencyHistogram.set(\n        frequency,\n        (this.frequencyHistogram.get(frequency) as number) - 1,\n      );\n      if ((this.frequencyHistogram.get(frequency) as number) < 1) {\n        this.frequencyHistogram.delete(frequency);\n\n        // nothing subscribed to this anymore...it is invalid\n        if (this.frequencyHistogram.size === 0) {\n          this.cleanup();\n          return true;\n        }\n\n        // this was the min, so find the next size\n        if (frequency <= this.frequency) {\n          this.frequency = Math.min(...this.frequencyHistogram.keys());\n          this.run();\n        }\n      }\n    } /* istanbul ignore next */ else if (\n      process.env.NODE_ENV !== 'production'\n    ) {\n      console.error(\n        `Mismatched remove: ${frequency} is not subscribed for ${this.key}`,\n      );\n    }\n    return false;\n  }\n\n  /** Cleanup means clearing out background interval. */\n  cleanup() {\n    if (this.intervalId) {\n      clearInterval(this.intervalId);\n      delete this.intervalId;\n    }\n    if (this.lastIntervalId) {\n      clearInterval(this.lastIntervalId);\n      delete this.lastIntervalId;\n    }\n    if (this.startId) {\n      clearTimeout(this.startId);\n      delete this.startId;\n    }\n    this.connectionListener.removeOnlineListener(this.onlineListener);\n    this.connectionListener.removeOfflineListener(this.offlineListener);\n  }\n\n  /** Trigger request for latest resource */\n  protected update() {\n    const sup = this.endpoint;\n    const endpoint = function (this: any, ...args: any[]) {\n      return sup.call(this, ...args);\n    };\n    Object.assign(endpoint, this.endpoint);\n    endpoint.dataExpiryLength = this.frequency / 2;\n    endpoint.errorExpiryLength = this.frequency / 10;\n    endpoint.errorPolicy = () => 'soft' as const;\n    endpoint.key = () => this.key;\n    // stop any errors here from bubbling\n    this.controller.fetch(endpoint, ...this.args).catch(() => null);\n  }\n\n  /** What happens when browser goes offline */\n  protected offlineListener = () => {\n    // this clears existing listeners, so no need to clear offline listener\n    this.cleanup();\n    this.connectionListener.addOnlineListener(this.onlineListener);\n  };\n\n  /** What happens when browser comes online */\n  protected onlineListener = () => {\n    this.connectionListener.removeOnlineListener(this.onlineListener);\n    const now = Date.now();\n    this.startId = setTimeout(\n      () => {\n        if (this.startId) {\n          delete this.startId;\n          this.update();\n          this.run();\n        } else if (process.env.NODE_ENV !== 'production') {\n          console.warn(\n            `Poll setTimeout for ${this.key} still running, but timeoutId deleted`,\n          );\n        }\n      },\n      Math.max(0, this.lastFetchTime() - now + this.frequency),\n    );\n    this.connectionListener.addOfflineListener(this.offlineListener);\n  };\n\n  /** Run polling process with current frequency\n   *\n   * Will clean up old poll interval on next run\n   */\n  protected run() {\n    if (this.startId) return;\n    if (this.intervalId) this.lastIntervalId = this.intervalId;\n    this.intervalId = setInterval(() => {\n      // since we don't know how long into the last poll it was before resetting\n      // we wait til the next fetch to clear old intervals\n      if (this.lastIntervalId) {\n        clearInterval(this.lastIntervalId);\n        delete this.lastIntervalId;\n      }\n      if (this.intervalId) this.update();\n      else if (process.env.NODE_ENV !== 'production') {\n        console.warn(\n          `Poll intervalId for ${this.key} still running, but intervalId deleted`,\n        );\n      }\n    }, this.frequency);\n  }\n\n  /** Last fetch time */\n  protected lastFetchTime() {\n    return this.controller.getState().meta[this.key]?.date ?? 0;\n  }\n}\n"],"mappings":"AAGA,OAAOA,yBAAyB,MAAM,gCAAgC;AAKtE;AACA;AACA;AACA;AACA;AACA;AACA;AACA,eAAe,MAAMC,mBAAmB,CAAyB;EAY/DC,WAAWA,CACTC,MAAqC,EACrCC,UAAsB,EACtBC,kBAAuC,EACvC;IAAA,KAXQC,kBAAkB,GAAwB,IAAIC,GAAG,CAAC,CAAC;IAoH7D;IAAA,KACUC,eAAe,GAAG,MAAM;MAChC;MACA,IAAI,CAACC,OAAO,CAAC,CAAC;MACd,IAAI,CAACJ,kBAAkB,CAACK,iBAAiB,CAAC,IAAI,CAACC,cAAc,CAAC;IAChE,CAAC;IAED;IAAA,KACUA,cAAc,GAAG,MAAM;MAC/B,IAAI,CAACN,kBAAkB,CAACO,oBAAoB,CAAC,IAAI,CAACD,cAAc,CAAC;MACjE,MAAME,GAAG,GAAGC,IAAI,CAACD,GAAG,CAAC,CAAC;MACtB,IAAI,CAACE,OAAO,GAAGC,UAAU,CACvB,MAAM;QACJ,IAAI,IAAI,CAACD,OAAO,EAAE;UAChB,OAAO,IAAI,CAACA,OAAO;UACnB,IAAI,CAACE,MAAM,CAAC,CAAC;UACb,IAAI,CAACC,GAAG,CAAC,CAAC;QACZ,CAAC,MAAM,IAAIC,OAAO,CAACC,GAAG,CAACC,QAAQ,KAAK,YAAY,EAAE;UAChDC,OAAO,CAACC,IAAI,CACV,uBAAuB,IAAI,CAACC,GAAG,uCACjC,CAAC;QACH;MACF,CAAC,EACDC,IAAI,CAACC,GAAG,CAAC,CAAC,EAAE,IAAI,CAACC,aAAa,CAAC,CAAC,GAAGd,GAAG,GAAG,IAAI,CAACe,SAAS,CACzD,CAAC;MACD,IAAI,CAACvB,kBAAkB,CAACwB,kBAAkB,CAAC,IAAI,CAACrB,eAAe,CAAC;IAClE,CAAC;IAlIC,IAAIL,MAAM,CAAC2B,QAAQ,CAACC,aAAa,KAAKC,SAAS,EAC7C,MAAM,IAAIC,KAAK,CAAC,2CAA2C,CAAC;IAC9D,IAAI,CAACH,QAAQ,GAAG3B,MAAM,CAAC2B,QAAQ;IAC/B,IAAI,CAACF,SAAS,GAAGzB,MAAM,CAAC2B,QAAQ,CAACC,aAAa;IAC9C,IAAI,CAACG,IAAI,GAAG/B,MAAM,CAAC+B,IAAI;IACvB,IAAI,CAACV,GAAG,GAAGrB,MAAM,CAACqB,GAAG;IACrB,IAAI,CAAClB,kBAAkB,CAAC6B,GAAG,CAAC,IAAI,CAACP,SAAS,EAAE,CAAC,CAAC;IAC9C,IAAI,CAACxB,UAAU,GAAGA,UAAU;IAC5B,IAAI,CAACC,kBAAkB,GACrBA,kBAAkB,IAAI,IAAIL,yBAAyB,CAAC,CAAC;;IAEvD;IACA,IAAI,IAAI,CAACK,kBAAkB,CAAC+B,QAAQ,CAAC,CAAC,EAAE;MACtC,IAAI,CAACzB,cAAc,CAAC,CAAC;IACvB,CAAC,MAAM;MACL,IAAI,CAACH,eAAe,CAAC,CAAC;IACxB;EACF;;EAEA;EACA6B,GAAGA,CAACT,SAAkB,EAAE;IACtB,IAAIA,SAAS,KAAKI,SAAS,EAAE;IAC7B,IAAI,IAAI,CAAC1B,kBAAkB,CAACgC,GAAG,CAACV,SAAS,CAAC,EAAE;MAC1C,IAAI,CAACtB,kBAAkB,CAAC6B,GAAG,CACzBP,SAAS,EACR,IAAI,CAACtB,kBAAkB,CAACiC,GAAG,CAACX,SAAS,CAAC,GAAc,CACvD,CAAC;IACH,CAAC,MAAM;MACL,IAAI,CAACtB,kBAAkB,CAAC6B,GAAG,CAACP,SAAS,EAAE,CAAC,CAAC;;MAEzC;MACA,IAAIA,SAAS,GAAG,IAAI,CAACA,SAAS,EAAE;QAC9B,IAAI,CAACA,SAAS,GAAGA,SAAS;QAC1B,IAAI,CAACV,GAAG,CAAC,CAAC;MACZ;IACF;EACF;;EAEA;EACAsB,MAAMA,CAACZ,SAAkB,EAAE;IACzB,IAAIA,SAAS,KAAKI,SAAS,EAAE,OAAO,KAAK;IACzC,IAAI,IAAI,CAAC1B,kBAAkB,CAACgC,GAAG,CAACV,SAAS,CAAC,EAAE;MAC1C,IAAI,CAACtB,kBAAkB,CAAC6B,GAAG,CACzBP,SAAS,EACR,IAAI,CAACtB,kBAAkB,CAACiC,GAAG,CAACX,SAAS,CAAC,GAAc,CACvD,CAAC;MACD,IAAK,IAAI,CAACtB,kBAAkB,CAACiC,GAAG,CAACX,SAAS,CAAC,GAAc,CAAC,EAAE;QAC1D,IAAI,CAACtB,kBAAkB,CAACmC,MAAM,CAACb,SAAS,CAAC;;QAEzC;QACA,IAAI,IAAI,CAACtB,kBAAkB,CAACoC,IAAI,KAAK,CAAC,EAAE;UACtC,IAAI,CAACjC,OAAO,CAAC,CAAC;UACd,OAAO,IAAI;QACb;;QAEA;QACA,IAAImB,SAAS,IAAI,IAAI,CAACA,SAAS,EAAE;UAC/B,IAAI,CAACA,SAAS,GAAGH,IAAI,CAACkB,GAAG,CAAC,GAAG,IAAI,CAACrC,kBAAkB,CAACsC,IAAI,CAAC,CAAC,CAAC;UAC5D,IAAI,CAAC1B,GAAG,CAAC,CAAC;QACZ;MACF;IACF,CAAC,CAAC,+BAAgC,IAChCC,OAAO,CAACC,GAAG,CAACC,QAAQ,KAAK,YAAY,EACrC;MACAC,OAAO,CAACuB,KAAK,CACX,sBAAsBjB,SAAS,0BAA0B,IAAI,CAACJ,GAAG,EACnE,CAAC;IACH;IACA,OAAO,KAAK;EACd;;EAEA;EACAf,OAAOA,CAAA,EAAG;IACR,IAAI,IAAI,CAACqC,UAAU,EAAE;MACnBC,aAAa,CAAC,IAAI,CAACD,UAAU,CAAC;MAC9B,OAAO,IAAI,CAACA,UAAU;IACxB;IACA,IAAI,IAAI,CAACE,cAAc,EAAE;MACvBD,aAAa,CAAC,IAAI,CAACC,cAAc,CAAC;MAClC,OAAO,IAAI,CAACA,cAAc;IAC5B;IACA,IAAI,IAAI,CAACjC,OAAO,EAAE;MAChBkC,YAAY,CAAC,IAAI,CAAClC,OAAO,CAAC;MAC1B,OAAO,IAAI,CAACA,OAAO;IACrB;IACA,IAAI,CAACV,kBAAkB,CAACO,oBAAoB,CAAC,IAAI,CAACD,cAAc,CAAC;IACjE,IAAI,CAACN,kBAAkB,CAAC6C,qBAAqB,CAAC,IAAI,CAAC1C,eAAe,CAAC;EACrE;;EAEA;EACUS,MAAMA,CAAA,EAAG;IACjB,MAAMkC,GAAG,GAAG,IAAI,CAACrB,QAAQ;IACzB,MAAMA,QAAQ,GAAG,SAAXA,QAAQA,CAAwB,GAAGI,IAAW,EAAE;MACpD,OAAOiB,GAAG,CAACC,IAAI,CAAC,IAAI,EAAE,GAAGlB,IAAI,CAAC;IAChC,CAAC;IACDmB,MAAM,CAACC,MAAM,CAACxB,QAAQ,EAAE,IAAI,CAACA,QAAQ,CAAC;IACtCA,QAAQ,CAACyB,gBAAgB,GAAG,IAAI,CAAC3B,SAAS,GAAG,CAAC;IAC9CE,QAAQ,CAAC0B,iBAAiB,GAAG,IAAI,CAAC5B,SAAS,GAAG,EAAE;IAChDE,QAAQ,CAAC2B,WAAW,GAAG,MAAM,MAAe;IAC5C3B,QAAQ,CAACN,GAAG,GAAG,MAAM,IAAI,CAACA,GAAG;IAC7B;IACA,IAAI,CAACpB,UAAU,CAACsD,KAAK,CAAC5B,QAAQ,EAAE,GAAG,IAAI,CAACI,IAAI,CAAC,CAACyB,KAAK,CAAC,MAAM,IAAI,CAAC;EACjE;EA8BA;AACF;AACA;AACA;EACYzC,GAAGA,CAAA,EAAG;IACd,IAAI,IAAI,CAACH,OAAO,EAAE;IAClB,IAAI,IAAI,CAAC+B,UAAU,EAAE,IAAI,CAACE,cAAc,GAAG,IAAI,CAACF,UAAU;IAC1D,IAAI,CAACA,UAAU,GAAGc,WAAW,CAAC,MAAM;MAClC;MACA;MACA,IAAI,IAAI,CAACZ,cAAc,EAAE;QACvBD,aAAa,CAAC,IAAI,CAACC,cAAc,CAAC;QAClC,OAAO,IAAI,CAACA,cAAc;MAC5B;MACA,IAAI,IAAI,CAACF,UAAU,EAAE,IAAI,CAAC7B,MAAM,CAAC,CAAC,CAAC,KAC9B,IAAIE,OAAO,CAACC,GAAG,CAACC,QAAQ,KAAK,YAAY,EAAE;QAC9CC,OAAO,CAACC,IAAI,CACV,uBAAuB,IAAI,CAACC,GAAG,wCACjC,CAAC;MACH;IACF,CAAC,EAAE,IAAI,CAACI,SAAS,CAAC;EACpB;;EAEA;EACUD,aAAaA,CAAA,EAAG;IAAA,IAAAkC,qBAAA,EAAAC,sBAAA;IACxB,QAAAD,qBAAA,IAAAC,sBAAA,GAAO,IAAI,CAAC1D,UAAU,CAAC2D,QAAQ,CAAC,CAAC,CAACC,IAAI,CAAC,IAAI,CAACxC,GAAG,CAAC,qBAAzCsC,sBAAA,CAA2CG,IAAI,YAAAJ,qBAAA,GAAI,CAAC;EAC7D;AACF","ignoreList":[]}