ベアメタルやKubernetes上でスケーラブルなアプリを実現

// Set up the authentication // For Stargate OSS: Create a table based auth token Stargate/Cassandra // authentication using the default C* username and password const credentials = new StargateTableBasedToken( {authEndpoint: auth_endpoint, username: username, password: password } ); // Create the gRPC client // For Stargate OSS: passing it the address of the gRPC endpoint const stargateClient = new StargateClient(stargate_uri, grpc.credentials.createInsecure()); // Create a promisified version of the client, so we don't need to use callbacks const promisifiedClient = promisifyStargateClient(stargateClient); // For Stargate OSS: generate authentication metadata that is passed in the executeQuery and executeBatch statements const authenticationMetadata = await credentials.generateMetadata({service_url: auth_endpoint}); // For Stargate OSS: SELECT the data to read from the table const query = new Query(); const queryString = 'SELECT firstname, lastname FROM test.users;' // Set the CQL statement using the string defined in the last line query.setCql(queryString); // For Stargate OSS: execute the query statement const response = await promisifiedClient.executeQuery( query, authenticationMetadata );