For similar capabilities to Amazon Timestream for LiveAnalytics, consider Amazon Timestream for InfluxDB. It offers simplified data ingestion and single-digit millisecond query response times for real-time analytics. Learn more [here](https://docs.aws.amazon.com//timestream/latest/developerguide/timestream-for-influxdb.html).

# Write SDK client
<a name="code-samples.write-client"></a>

You can use the following code snippets to create a Timestream client for the Write SDK. The Write SDK is used to perform CRUD operations and to insert your time series data into Timestream.

**Note**  
These code snippets are based on full sample applications on [GitHub](https://github.com/awslabs/amazon-timestream-tools/blob/master/sample_apps). For more information about how to get started with the sample applications, see [Sample application](sample-apps.md).

------
#### [  Java  ]

```
    private static AmazonTimestreamWrite buildWriteClient() {
        final ClientConfiguration clientConfiguration = new ClientConfiguration()
                .withMaxConnections(5000)
                .withRequestTimeout(20 * 1000)
                .withMaxErrorRetry(10);

        return AmazonTimestreamWriteClientBuilder
                .standard()
                .withRegion("us-east-1")
                .withClientConfiguration(clientConfiguration)
                .build();
    }
```

------
#### [  Java v2  ]

```
    private static TimestreamWriteClient buildWriteClient() {
        ApacheHttpClient.Builder httpClientBuilder =
                ApacheHttpClient.builder();
        httpClientBuilder.maxConnections(5000);

        RetryPolicy.Builder retryPolicy =
                RetryPolicy.builder();
        retryPolicy.numRetries(10);

        ClientOverrideConfiguration.Builder overrideConfig =
                ClientOverrideConfiguration.builder();
        overrideConfig.apiCallAttemptTimeout(Duration.ofSeconds(20));
        overrideConfig.retryPolicy(retryPolicy.build());

        return TimestreamWriteClient.builder()
                .httpClientBuilder(httpClientBuilder)
                .overrideConfiguration(overrideConfig.build())
                .region(Region.US_EAST_1)
                .build();
    }
```

------
#### [  Go  ]

```
tr := &http.Transport{
        ResponseHeaderTimeout: 20 * time.Second,
        // Using DefaultTransport values for other parameters: https://golang.org/pkg/net/http/#RoundTripper
        Proxy: http.ProxyFromEnvironment,
        DialContext: (&net.Dialer{
            KeepAlive: 30 * time.Second,
            DualStack: true,
            Timeout:   30 * time.Second,
        }).DialContext,
        MaxIdleConns:          100,
        IdleConnTimeout:       90 * time.Second,
        TLSHandshakeTimeout:   10 * time.Second,
        ExpectContinueTimeout: 1 * time.Second,
    }

    // So client makes HTTP/2 requests
    http2.ConfigureTransport(tr)

    sess, err := session.NewSession(&aws.Config{ Region: aws.String("us-east-1"), MaxRetries: aws.Int(10), HTTPClient: &http.Client{ Transport: tr }})
    writeSvc := timestreamwrite.New(sess)
```

------
#### [  Python  ]

```
write_client = session.client('timestream-write', config=Config(read_timeout=20, max_pool_connections = 5000, retries={'max_attempts': 10})) 
```

------
#### [  Node.js  ]

The following snippet uses AWS SDK for JavaScript v3. For more information about how to install the client and usage, see [Timestream Write Client - AWS SDK for JavaScript v3](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-write/index.html).

An additional command import is shown here. The `CreateDatabaseCommand` import is not required to create the client.

```
import { TimestreamWriteClient, CreateDatabaseCommand } from "@aws-sdk/client-timestream-write";
const writeClient = new TimestreamWriteClient({ region: "us-east-1" });
```

The following snippet uses the AWS SDK for JavaScript V2 style. It is based on the sample application at [Node.js sample Amazon Timestream for LiveAnalytics application on GitHub](https://github.com/awslabs/amazon-timestream-tools/tree/mainline/sample_apps/js).

```
var https = require('https');
var agent = new https.Agent({
    maxSockets: 5000
});
writeClient = new AWS.TimestreamWrite({
        maxRetries: 10,
        httpOptions: {
            timeout: 20000,
            agent: agent
        }
    });
```

------
#### [  .NET  ]

```
var writeClientConfig = new AmazonTimestreamWriteConfig
{
    RegionEndpoint = RegionEndpoint.USEast1,
    Timeout = TimeSpan.FromSeconds(20),
    MaxErrorRetry = 10
};

var writeClient = new AmazonTimestreamWriteClient(writeClientConfig);
```

------

We recommend you use the following configuration.
+ Set the SDK retry count to `10`.
+ Use `SDK DEFAULT_BACKOFF_STRATEGY`.
+ Set `RequestTimeout` to `20` seconds.
+ Set the max connections to `5000` or higher.