> For the complete documentation index, see [llms.txt](https://koii-network.gitbook.io/getting-started/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://koii-network.gitbook.io/getting-started/microservices-and-tasks/task-development-kit-tdk/using-the-task-namespace/leveldb.md).

# LevelDB

[LevelDB](https://github.com/google/leveldb) is a key-value storage library that provides an ordered mapping from string keys to string values. It provides `Put`, `Delete`, and `Get` methods to modify/query the database.

The `namespaceWrapper` class provides some methods that utilize levelDB's `Put(key,value) and` `Get(key)` basic operations for storing and retrieving data respectively.

## storeSet

This is the Namespace wrapper call for levelDB `Put` method

```typescript
async storeSet(key, value): Promise<void> {
  return (await genericHandler('storeSet', key, value));
}
```

Example:

```javascript
await namespaceWrapper.storeSet("round", "-1"); // store data
const round_task = await namespaceWrapper.storeGet("round"); // retrieve data with key
console.log("ROUND OF TASK SET TO", round_task);
```

## storeGet

This is the Namespace wrapper call for levelDB `Get` method

```typescript
async storeGet(key): Promise<string> {
  return (await genericHandler('storeGet', key));
}
```

Example:

```javascript
async function execute() {
  console.log("ROUND", await namespaceWrapper.storeGet("round"));
  }
```