{"version":3,"file":"bundle.esm.js","sources":["../src/webSocketLink.ts"],"sourcesContent":["import { ApolloLink, Operation, FetchResult, Observable } from 'apollo-link';\n\nimport { SubscriptionClient, ClientOptions } from 'subscriptions-transport-ws';\n\nexport namespace WebSocketLink {\n  /**\n   * Configuration to use when constructing the subscription client (subscriptions-transport-ws).\n   */\n  export interface Configuration {\n    /**\n     * The endpoint to connect to.\n     */\n    uri: string;\n\n    /**\n     * Options to pass when constructing the subscription client.\n     */\n    options?: ClientOptions;\n\n    /**\n     * A custom WebSocket implementation to use.\n     */\n    webSocketImpl?: any;\n  }\n}\n\n// For backwards compatibility.\nexport import WebSocketParams = WebSocketLink.Configuration;\n\nexport class WebSocketLink extends ApolloLink {\n  private subscriptionClient: SubscriptionClient;\n\n  constructor(\n    paramsOrClient: WebSocketLink.Configuration | SubscriptionClient,\n  ) {\n    super();\n\n    if (paramsOrClient instanceof SubscriptionClient) {\n      this.subscriptionClient = paramsOrClient;\n    } else {\n      this.subscriptionClient = new SubscriptionClient(\n        paramsOrClient.uri,\n        paramsOrClient.options,\n        paramsOrClient.webSocketImpl,\n      );\n    }\n  }\n\n  public request(operation: Operation): Observable<FetchResult> | null {\n    return this.subscriptionClient.request(operation) as Observable<\n      FetchResult\n    >;\n  }\n}\n"],"names":["tslib_1.__extends"],"mappings":";;;;;IA6BmCA,iCAAU;IAG3C,uBACE,cAAgE;QADlE,YAGE,iBAAO,SAWR;QATC,IAAI,cAAc,YAAY,kBAAkB,EAAE;YAChD,KAAI,CAAC,kBAAkB,GAAG,cAAc,CAAC;SAC1C;aAAM;YACL,KAAI,CAAC,kBAAkB,GAAG,IAAI,kBAAkB,CAC9C,cAAc,CAAC,GAAG,EAClB,cAAc,CAAC,OAAO,EACtB,cAAc,CAAC,aAAa,CAC7B,CAAC;SACH;;KACF;IAEM,+BAAO,GAAd,UAAe,SAAoB;QACjC,OAAO,IAAI,CAAC,kBAAkB,CAAC,OAAO,CAAC,SAAS,CAE/C,CAAC;KACH;IACH,oBAAC;AAAD,CAxBA,CAAmC,UAAU;;;;"}