---
url: /api/specs/schema/types/domain/class-json-operation-paths-map.md
description: api documentation of JsonOperationPathsMap from @tsed/schema
---

## Usage

```typescript
import { JsonOperationPathsMap } from "@tsed/schema";
```

> See [/packages/specs/schema/src/domain/JsonOperationPathsMap.ts](https://github.com/tsedio/tsed/blob/v8.38.4/packages/specs/schema/src/domain/JsonOperationPathsMap.ts#L0-L0).

## Overview

```ts
class JsonOperationPathsMap extends Map<string, JsonMethodPath> {
    $kind: string;
    readonly $isJsonDocument = true;
    setOperationPath(operationPath: JsonMethodPath): void;
    protected getKey: (method: string, path: any) => string;
}
```

## Description

Map container for storing HTTP operation paths indexed by method and path.

JsonOperationPathsMap maintains a collection of operation paths (HTTP method + URL path
combinations) for a controller. It provides efficient lookup and prevents duplicate
operations from being registered.

### Key Features

* **Unique Keys**: Stores operations using `method-path` composite keys
* **Method Safety**: Ensures operations are uniquely identified
* **Efficient Lookup**: Fast retrieval of operations by method and path
* **Type Safety**: Extends Map with JsonMethodPath values

### Usage

```typescript
const pathsMap = new JsonOperationPathsMap();

// Add operation path
const methodPath = { method: "GET", path: "/users" };
pathsMap.setOperationPath(methodPath);

// Retrieve by composite key
const operation = pathsMap.get("GET-/users");
```

### Key Generation

The map uses a composite key format: `{method}-{path}`

* Example: `"GET-/users/:id"` for a GET operation on `/users/:id`
* Example: `"POST-/users"` for a POST operation on `/users`

This ensures that different HTTP methods on the same path are treated as
distinct operations.

## $kind

```ts
$kind: string;
```

## readonly $isJsonDocument

```ts
readonly $isJsonDocument = true;
```

## setOperationPath

```ts
setOperationPath(operationPath: JsonMethodPath): void;
```

## protected getKey:

```ts
protected getKey: (method: string, path: any) => string;
```