feat(api): add websocket api definitions

packages/api/jest.config.js

@@ -10,10 +10,10 @@ module.exports = {
   },
   coverageThreshold: {
     global: {
-      branches: 17,
-      functions: 43,
-      lines: 46,
-      statements: 46
+      branches: 20,
+      functions: 66,
+      lines: 63,
+      statements: 63
     }
   }
 };

packages/api/package.json

@@ -32,7 +32,8 @@
     "eslint": "^8.23.0",
     "eslint-plugin-prettier": "*",
     "jest": "^28.1.2",
-    "ts-jest": "^28.0.5"
+    "ts-jest": "^28.0.5",
+    "typescript": "*"
   },
   "dependencies": {
     "@standardnotes/common": "^1.32.0",

packages/api/src/Domain/Client/WebSocket/WebSocketApiOperations.ts

@@ -0,0 +1,3 @@
+export enum WebSocketApiOperations {
+  CreatingConnectionToken,
+}

packages/api/src/Domain/Client/WebSocket/WebSocketApiService.spec.ts

@@ -0,0 +1,61 @@
+import { WebSocketConnectionTokenResponse } from '../../Response'
+
+import { WebSocketServerInterface } from '../../Server/WebSocket/WebSocketServerInterface'
+import { WebSocketApiOperations } from './WebSocketApiOperations'
+
+import { WebSocketApiService } from './WebSocketApiService'
+
+describe('WebSocketApiService', () => {
+  let webSocketServer: WebSocketServerInterface
+
+  const createService = () => new WebSocketApiService(webSocketServer)
+
+  beforeEach(() => {
+    webSocketServer = {} as jest.Mocked<WebSocketServerInterface>
+    webSocketServer.createConnectionToken = jest.fn().mockReturnValue({
+      data: { token: 'foobar' },
+    } as jest.Mocked<WebSocketConnectionTokenResponse>)
+  })
+
+  it('should create a websocket connection token', async () => {
+    const response = await createService().createConnectionToken()
+
+    expect(response).toEqual({
+      data: {
+        token: 'foobar',
+      },
+    })
+    expect(webSocketServer.createConnectionToken).toHaveBeenCalledWith({})
+  })
+
+  it('should not create a token if it is already creating', async () => {
+    const service = createService()
+    Object.defineProperty(service, 'operationsInProgress', {
+      get: () => new Map([[WebSocketApiOperations.CreatingConnectionToken, true]]),
+    })
+
+    let error = null
+    try {
+      await service.createConnectionToken()
+    } catch (caughtError) {
+      error = caughtError
+    }
+
+    expect(error).not.toBeNull()
+  })
+
+  it('should not create a token if the server fails', async () => {
+    webSocketServer.createConnectionToken = jest.fn().mockImplementation(() => {
+      throw new Error('Oops')
+    })
+
+    let error = null
+    try {
+      await createService().createConnectionToken()
+    } catch (caughtError) {
+      error = caughtError
+    }
+
+    expect(error).not.toBeNull()
+  })
+})

packages/api/src/Domain/Client/WebSocket/WebSocketApiService.ts

@@ -0,0 +1,33 @@
+import { ErrorMessage } from '../../Error/ErrorMessage'
+import { ApiCallError } from '../../Error/ApiCallError'
+
+import { WebSocketApiServiceInterface } from './WebSocketApiServiceInterface'
+import { WebSocketApiOperations } from './WebSocketApiOperations'
+import { WebSocketServerInterface } from '../../Server'
+import { WebSocketConnectionTokenResponse } from '../../Response'
+
+export class WebSocketApiService implements WebSocketApiServiceInterface {
+  private operationsInProgress: Map<WebSocketApiOperations, boolean>
+
+  constructor(private webSocketServer: WebSocketServerInterface) {
+    this.operationsInProgress = new Map()
+  }
+
+  async createConnectionToken(): Promise<WebSocketConnectionTokenResponse> {
+    if (this.operationsInProgress.get(WebSocketApiOperations.CreatingConnectionToken)) {
+      throw new ApiCallError(ErrorMessage.GenericInProgress)
+    }
+
+    this.operationsInProgress.set(WebSocketApiOperations.CreatingConnectionToken, true)
+
+    try {
+      const response = await this.webSocketServer.createConnectionToken({})
+
+      this.operationsInProgress.set(WebSocketApiOperations.CreatingConnectionToken, false)
+
+      return response
+    } catch (error) {
+      throw new ApiCallError(ErrorMessage.GenericFail)
+    }
+  }
+}

packages/api/src/Domain/Client/WebSocket/WebSocketApiServiceInterface.ts

@@ -0,0 +1,5 @@
+import { WebSocketConnectionTokenResponse } from '../../Response'
+
+export interface WebSocketApiServiceInterface {
+  createConnectionToken(): Promise<WebSocketConnectionTokenResponse>
+}

packages/api/src/Domain/Client/index.ts

@@ -3,3 +3,5 @@ export * from './Subscription/SubscriptionApiService'
 export * from './Subscription/SubscriptionApiServiceInterface'
 export * from './User/UserApiService'
 export * from './User/UserApiServiceInterface'
+export * from './WebSocket/WebSocketApiService'
+export * from './WebSocket/WebSocketApiServiceInterface'

packages/api/src/Domain/Request/WebSocket/WebSocketConnectionTokenRequestParams.ts

@@ -0,0 +1,3 @@
+export type WebSocketConnectionTokenRequestParams = {
+  [additionalParam: string]: unknown
+}

packages/api/src/Domain/Request/index.ts

@@ -5,3 +5,4 @@ export * from './Subscription/SubscriptionInviteDeclineRequestParams'
 export * from './Subscription/SubscriptionInviteListRequestParams'
 export * from './Subscription/SubscriptionInviteRequestParams'
 export * from './User/UserRegistrationRequestParams'
+export * from './WebSocket/WebSocketConnectionTokenRequestParams'

packages/api/src/Domain/Response/WebSocket/WebSocketConnectionTokenResponse.ts

@@ -0,0 +1,9 @@
+import { Either } from '@standardnotes/common'
+
+import { HttpErrorResponseBody } from '../../Http/HttpErrorResponseBody'
+import { HttpResponse } from '../../Http/HttpResponse'
+import { WebSocketConnectionTokenResponseBody } from './WebSocketConnectionTokenResponseBody'
+
+export interface WebSocketConnectionTokenResponse extends HttpResponse {
+  data: Either<WebSocketConnectionTokenResponseBody, HttpErrorResponseBody>
+}

packages/api/src/Domain/Response/WebSocket/WebSocketConnectionTokenResponseBody.ts

@@ -0,0 +1,3 @@
+export type WebSocketConnectionTokenResponseBody = {
+  token: string
+}

packages/api/src/Domain/Response/index.ts

@@ -10,3 +10,5 @@ export * from './Subscription/SubscriptionInviteResponse'
 export * from './Subscription/SubscriptionInviteResponseBody'
 export * from './User/UserRegistrationResponse'
 export * from './User/UserRegistrationResponseBody'
+export * from './WebSocket/WebSocketConnectionTokenResponse'
+export * from './WebSocket/WebSocketConnectionTokenResponseBody'

packages/api/src/Domain/Server/WebSocket/Paths.ts

@@ -0,0 +1,9 @@
+const TokenPaths = {
+  createConnectionToken: '/v1/sockets/tokens',
+}
+
+export const Paths = {
+  v1: {
+    ...TokenPaths,
+  },
+}

packages/api/src/Domain/Server/WebSocket/WebSocketServer.spec.ts

@@ -0,0 +1,27 @@
+import { HttpServiceInterface } from '../../Http'
+import { WebSocketConnectionTokenResponse } from '../../Response'
+
+import { WebSocketServer } from './WebSocketServer'
+
+describe('WebSocketServer', () => {
+  let httpService: HttpServiceInterface
+
+  const createServer = () => new WebSocketServer(httpService)
+
+  beforeEach(() => {
+    httpService = {} as jest.Mocked<HttpServiceInterface>
+    httpService.post = jest.fn().mockReturnValue({
+      data: { token: 'foobar' },
+    } as jest.Mocked<WebSocketConnectionTokenResponse>)
+  })
+
+  it('should create a websocket connection token', async () => {
+    const response = await createServer().createConnectionToken({})
+
+    expect(response).toEqual({
+      data: {
+        token: 'foobar',
+      },
+    })
+  })
+})

packages/api/src/Domain/Server/WebSocket/WebSocketServer.ts

@@ -0,0 +1,17 @@
+import { HttpServiceInterface } from '../../Http/HttpServiceInterface'
+import { WebSocketConnectionTokenRequestParams } from '../../Request/WebSocket/WebSocketConnectionTokenRequestParams'
+import { WebSocketConnectionTokenResponse } from '../../Response/WebSocket/WebSocketConnectionTokenResponse'
+import { Paths } from './Paths'
+import { WebSocketServerInterface } from './WebSocketServerInterface'
+
+export class WebSocketServer implements WebSocketServerInterface {
+  constructor(private httpService: HttpServiceInterface) {}
+
+  async createConnectionToken(
+    params: WebSocketConnectionTokenRequestParams,
+  ): Promise<WebSocketConnectionTokenResponse> {
+    const response = await this.httpService.post(Paths.v1.createConnectionToken, params)
+
+    return response as WebSocketConnectionTokenResponse
+  }
+}

packages/api/src/Domain/Server/WebSocket/WebSocketServerInterface.ts

@@ -0,0 +1,6 @@
+import { WebSocketConnectionTokenRequestParams } from '../../Request/WebSocket/WebSocketConnectionTokenRequestParams'
+import { WebSocketConnectionTokenResponse } from '../../Response/WebSocket/WebSocketConnectionTokenResponse'
+
+export interface WebSocketServerInterface {
+  createConnectionToken(params: WebSocketConnectionTokenRequestParams): Promise<WebSocketConnectionTokenResponse>
+}

packages/api/src/Domain/Server/index.ts

@@ -2,3 +2,5 @@ export * from './Subscription/SubscriptionServer'
 export * from './Subscription/SubscriptionServerInterface'
 export * from './User/UserServer'
 export * from './User/UserServerInterface'
+export * from './WebSocket/WebSocketServer'
+export * from './WebSocket/WebSocketServerInterface'

yarn.lock

@@ -6397,6 +6397,7 @@ __metadata:
     jest: ^28.1.2
     reflect-metadata: ^0.1.13
     ts-jest: ^28.0.5
+    typescript: "*"
   languageName: unknown
   linkType: soft