# 02-write-data.js
<a name="DAX.client.run-application-nodejs.02-write-data"></a>

`02-write-data.js` 程序向 `TryDaxTable` 中写入测试数据。

```
const AmazonDaxClient = require("amazon-dax-client");
var AWS = require("aws-sdk");

var region = "us-west-2";

AWS.config.update({
  region: region,
});

var ddbClient = new AWS.DynamoDB.DocumentClient();

var tableName = "TryDaxTable";

var someData = "X".repeat(1000);
var pkmax = 10;
var skmax = 10;

for (var ipk = 1; ipk <= pkmax; ipk++) {
  for (var isk = 1; isk <= skmax; isk++) {
    var params = {
      TableName: tableName,
      Item: {
        pk: ipk,
        sk: isk,
        someData: someData,
      },
    };

    //
    //put item

    ddbClient.put(params, function (err, data) {
      if (err) {
        console.error("Unable to write data: ", JSON.stringify(err, null, 2));
      } else {
        console.log("PutItem succeeded");
      }
    });
  }
}
```