How to Assign WebsocketApi Resource to My Lambda Handlers?

Serverless Framework
,
1

My current serverless.yaml file is as follows:

service: StockWave
frameworkVersion: '3'

plugins:
  - serverless-plugin-typescript

custom:
  output:
    file: ./client/data.json
  stage: ${opt:stage, 'dev'}

provider:
  name: aws
  runtime: nodejs16.x
  environment:
    WEBSOCKET_API_URL: !Join [ '', [ 'https://', !Ref WebsocketApi, '.execute-api.',!Ref 'AWS::Region','.amazonaws.com/dev'] ]

functions:
  getStockData:
    handler: handler.getStockData
    role: arn:aws:iam::xxxxxx:role/LabRole
    description: Get stock data
    events:
      - http:
          path: /stock-data
          method: get
          cors: true
          request:
            parameters:
              querystrings:
                symbol: true
                limit: false
  getSentiments:
    handler: handler.getSentiments
    role: arn:aws:iam::xxxxxx:role/LabRole
    description: Get sentiments
    events:
      - http:
          path: /sentiments
          method: get
          cors: true
  connect:
    handler: handler.connect
    role: arn:aws:iam::xxxxxx:role/LabRole
    description: Connect to websocket
    events:
      - websocket:
          route: $connect
          apiId: !Ref WebsocketApi
  disconnect:
    handler: handler.disconnect
    role: arn:aws:iam::xxxxxx:role/LabRole
    description: Disconnect from websocket
    events:
      - websocket:
          route: $disconnect
          apiId: !Ref WebsocketApi
  sendMessage:
    handler: handler.sendMessage
    role: arn:aws:iam::xxxxxx:role/LabRole
    description: Send data to websocket
    events: 
      - websocket:
          route: sendMessage
          apiId: !Ref WebsocketApi

resources:
  Resources:
      WebsocketApi:
        Type: AWS::ApiGatewayV2::Api
        Properties:
          Name: WebsocketApi
          ProtocolType: WEBSOCKET
          RouteSelectionExpression: "$request.body.action"

However, this creates two WebSocket APIs, which is not what I want. How can I specify that my WebSocket Lambda functions should use the WebsocketApi resource?