# $tsIncrement
<a name="tsIncrement"></a>

New from version 8.0.1.

The `$tsIncrement` operator in Amazon DocumentDB returns the incrementing ordinal from a Timestamp value as a long integer.

**Parameters**
+ `expression`: An expression that resolves to a Timestamp.

## Example (MongoDB Shell)
<a name="tsIncrement-examples"></a>

The following example shows how to use the `$tsIncrement` operator to extract the ordinal increment from Timestamp values.

**Create sample documents**

```
db.events.insertMany([
  {_id: 1, ts: Timestamp(1678900000, 1)},
  {_id: 2, ts: Timestamp(1678900000, 2)},
  {_id: 3, ts: Timestamp(1678900001, 1)}
]);
```

**Query example**

```
db.events.aggregate([
  { $project: { increment: { $tsIncrement: "$ts" } } }
]);
```

**Output**

```
[
  {_id: 1, increment: Long("1")},
  {_id: 2, increment: Long("2")},
  {_id: 3, increment: Long("1")}
]
```

## Code examples
<a name="tsIncrement-code"></a>

To view a code example for using the `$tsIncrement` operator, choose the tab for the language that you want to use:

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

```
const { MongoClient, Timestamp } = require('mongodb');

async function example() {
  const client = new MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false');
  try {
    await client.connect();
    const db = client.db('test');
    const collection = db.collection('events');
    const result = await collection.aggregate([
      { $project: { increment: { $tsIncrement: "$ts" } } }
    ]).toArray();
    console.log(result);
  } finally {
    await client.close();
  }
}
example();
```

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

```
from pymongo import MongoClient

def example():
    client = MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false')
    try:
        db = client['test']
        collection = db['events']
        result = list(collection.aggregate([
            {'$project': {'increment': {'$tsIncrement': '$ts'}}}
        ]))
        print(result)
    finally:
        client.close()

example()
```

------