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Diffstat (limited to 'packages/connect/src/orderbook_channel_factory.ts')
-rw-r--r-- | packages/connect/src/orderbook_channel_factory.ts | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/packages/connect/src/orderbook_channel_factory.ts b/packages/connect/src/orderbook_channel_factory.ts new file mode 100644 index 000000000..5134af323 --- /dev/null +++ b/packages/connect/src/orderbook_channel_factory.ts @@ -0,0 +1,32 @@ +import * as WebSocket from 'websocket'; + +import { OrderbookChannel, OrderbookChannelHandler } from './types'; +import { assert } from './utils/assert'; +import { WebSocketOrderbookChannel } from './ws_orderbook_channel'; + +export const orderbookChannelFactory = { + /** + * Instantiates a new WebSocketOrderbookChannel instance + * @param url The relayer API base WS url you would like to interact with + * @param handler An OrderbookChannelHandler instance that responds to various + * channel updates + * @return An OrderbookChannel Promise + */ + async createWebSocketOrderbookChannelAsync( + url: string, + handler: OrderbookChannelHandler, + ): Promise<OrderbookChannel> { + assert.isUri('url', url); + assert.isOrderbookChannelHandler('handler', handler); + return new Promise<OrderbookChannel>((resolve, reject) => { + const client = new WebSocket.w3cwebsocket(url); + client.onopen = () => { + const orderbookChannel = new WebSocketOrderbookChannel(client, handler); + resolve(orderbookChannel); + }; + client.onerror = err => { + reject(err); + }; + }); + }, +}; |