> ## Documentation Index
> Fetch the complete documentation index at: https://docs.starknet.io/llms.txt
> Use this file to discover all available pages before exploring further.

# core::starknet::storage::map::StoragePathEntry

Computes storage paths for accessing [`Map`](./core-starknet-storage-map-Map) entries.
The storage path combines the variable's base path with the key's hash to create a unique
identifier for the storage slot. This path can then be used for subsequent read or write
operations, or advanced further by chaining the `entry` method.

## Signature

```rust theme={null}
pub trait StoragePathEntry
```

## Examples

```rust theme={null}
use starknet::ContractAddress;
use starknet::storage::{Map, StoragePathEntry};

#[storage]
struct Storage {
    balances: Map,
}

// Get the storage path for the balance of a specific address
let balance_path = self.balances.entry(address);
```

## Trait functions

### entry

#### Signature

```rust theme={null}
fn entry(self: C, key: Self::Key) -> StoragePathValue>
```

## Trait types

### Key

#### Signature

```rust theme={null}
type Key;
```

### Value

#### Signature

```rust theme={null}
type Value;
```