Descrivi database - Amazon Timestream

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Descrivi database

È possibile utilizzare i seguenti frammenti di codice per ottenere informazioni sugli attributi del database appena creato.

Nota

Questi frammenti di codice si basano su applicazioni di esempio complete su. GitHub Per ulteriori informazioni su come iniziare a utilizzare le applicazioni di esempio, vedere. Applicazione di esempio

Java
public void describeDatabase() { System.out.println("Describing database"); final DescribeDatabaseRequest describeDatabaseRequest = new DescribeDatabaseRequest(); describeDatabaseRequest.setDatabaseName(DATABASE_NAME); try { DescribeDatabaseResult result = amazonTimestreamWrite.describeDatabase(describeDatabaseRequest); final Database databaseRecord = result.getDatabase(); final String databaseId = databaseRecord.getArn(); System.out.println("Database " + DATABASE_NAME + " has id " + databaseId); } catch (final Exception e) { System.out.println("Database doesn't exist = " + e); throw e; } }
Java v2
public void describeDatabase() { System.out.println("Describing database"); final DescribeDatabaseRequest describeDatabaseRequest = DescribeDatabaseRequest.builder() .databaseName(DATABASE_NAME).build(); try { DescribeDatabaseResponse response = timestreamWriteClient.describeDatabase(describeDatabaseRequest); final Database databaseRecord = response.database(); final String databaseId = databaseRecord.arn(); System.out.println("Database " + DATABASE_NAME + " has id " + databaseId); } catch (final Exception e) { System.out.println("Database doesn't exist = " + e); throw e; } }
Go
describeDatabaseOutput, err := writeSvc.DescribeDatabase(describeDatabaseInput) if err != nil { fmt.Println("Error:") fmt.Println(err) } else { fmt.Println("Describe database is successful, below is the output:") fmt.Println(describeDatabaseOutput) }
Python
def describe_database(self): print("Describing database") try: result = self.client.describe_database(DatabaseName=Constant.DATABASE_NAME) print("Database [%s] has id [%s]" % (Constant.DATABASE_NAME, result['Database']['Arn'])) except self.client.exceptions.ResourceNotFoundException: print("Database doesn't exist") except Exception as err: print("Describe database failed:", err)
Node.js

Il seguente frammento viene utilizzato AWS SDK per JavaScript la v3. Per ulteriori informazioni su come installare il client e sull'utilizzo, consulta Timestream Write Client - for v3. AWS SDK JavaScript

Vedi anche Class and. DescribeDatabaseCommand DescribeDatabase

import { TimestreamWriteClient, DescribeDatabaseCommand } from "@aws-sdk/client-timestream-write"; const writeClient = new TimestreamWriteClient({ region: "us-east-1" }); const params = { DatabaseName: "testDbFromNode" }; const command = new DescribeDatabaseCommand(params); try { const data = await writeClient.send(command); console.log(`Database ${data.Database.DatabaseName} has id ${data.Database.Arn}`); } catch (error) { if (error.code === 'ResourceNotFoundException') { console.log("Database doesn't exist."); } else { console.log("Describe database failed.", error); throw error; } }

Il seguente frammento utilizza lo stile AWS SDK for JavaScript V2. Si basa sull'applicazione di esempio disponibile in Node.js, esempio Amazon Timestream LiveAnalytics per l'applicazione su. GitHub

async function describeDatabase () { console.log("Describing Database"); const params = { DatabaseName: constants.DATABASE_NAME }; const promise = writeClient.describeDatabase(params).promise(); await promise.then( (data) => { console.log(`Database ${data.Database.DatabaseName} has id ${data.Database.Arn}`); }, (err) => { if (err.code === 'ResourceNotFoundException') { console.log("Database doesn't exist."); } else { console.log("Describe database failed.", err); throw err; } } ); }
.NET
public async Task DescribeDatabase() { Console.WriteLine("Describing Database"); try { var describeDatabaseRequest = new DescribeDatabaseRequest { DatabaseName = Constants.DATABASE_NAME }; DescribeDatabaseResponse response = await writeClient.DescribeDatabaseAsync(describeDatabaseRequest); Console.WriteLine($"Database {Constants.DATABASE_NAME} has id:{response.Database.Arn}"); } catch (ResourceNotFoundException) { Console.WriteLine("Database does not exist."); } catch (Exception e) { Console.WriteLine("Describe database failed:" + e.ToString()); } }