static fromSharedAccessSignature()

in src/client.ts [461:484]
15 lines of code
3 McCabe index (conditional complexity)

  static fromSharedAccessSignature(sharedAccessSignature: string, transportCtor?: Client.TransportCtor): Client {
    /*Codes_SRS_NODE_IOTHUB_CLIENT_05_005: [The fromSharedAccessSignature method shall throw ReferenceError if the sharedAccessSignature argument is falsy.]*/
    if (!sharedAccessSignature) throw new ReferenceError('sharedAccessSignature is \'' + sharedAccessSignature + '\'');

    /*Codes_SRS_NODE_IOTHUB_CLIENT_16_019: [The `fromSharedAccessSignature` method shall use the `Transport` constructor passed as argument to instantiate a transport object if it's not falsy.]*/
    /*Codes_SRS_NODE_IOTHUB_CLIENT_16_020: [The `fromSharedAccessSignature` method shall use the default Transport (Amqp) if the `Transport` optional argument is falsy.]*/
    if (!transportCtor) {
      transportCtor = Amqp;
    }

    const sas = SharedAccessSignature.parse(sharedAccessSignature);
    const decodedUri = decodeURIComponent(sas.sr);

    /*Codes_SRS_NODE_IOTHUB_CLIENT_16_018: [The `fromSharedAccessSignature` method shall create a new transport instance and pass it a config object formed from the connection string given as argument.]*/
    const config: Client.TransportConfigOptions = {
      host: decodedUri,
      keyName: sas.skn,
      sharedAccessSignature: sas.toString(),
      tokenCredential: undefined
    };

    /*Codes_SRS_NODE_IOTHUB_CLIENT_05_007: [The fromSharedAccessSignature method shall return a new instance of the Client object, as by a call to new Client(transport).]*/
    return new Client(new transportCtor(config), new RestApiClient(config, packageJson.name + '/' + packageJson.version));
  }