# Base (https://dev.cosmospay.lat/docs/sdk/definitions/server/base/)

> Root of every API structure. Holds a back-reference to the Client so instances can perform their own actions (e.g. paymentIntent.delete()), and provides…

Root of every API structure. Holds a back-reference to the {@link Client} so instances can perform their own actions (e.g. `paymentIntent.delete()`), and provides the `_patch`/`toJSON` plumbing shared by all structures.

## Properties

### id

```ts
id: string
```

### member

The client that instantiated this structure.

```ts
}> { readonly client: Client
```

### id

Unique identifier of the resource.

```ts
id: string
```

### protected

```ts
protected constructor(client: Client, data: Data)
```

### protected

Merge raw API data onto this instance. Subclasses override and call super.

```ts
protected _patch(data: Data): this
```

### abstract

Return the raw API representation of this structure.

```ts
abstract toJSON(): Data
```

## Methods

### valueOf()

Allow `String(structure)` / template literals to resolve to the id.

```ts
valueOf(): string
```

**Returns** `string`