Domain

Endpoint refers to the network domain of the requested service, such as api.webull.com corresponding to the HTTP API service.

Different services will use different domain, such as usquotes-api.webullfintech.comcorresponding to market data services.

The region_id is also related to the Endpoint. For example, the region_id corresponding to the above two domain is US (representing the United States).

In the process of using the SDK, the Endpoint has been managed by default. Generally, the developer only needs to set the region_id correctly, and there is no need to set the Endpoint separately.

HTTP API

Different ways for users to customize Endpoint

Python

1. Set through ApiClient and take effect globally. The sample code is as follows.

from webullsdkcore.client import ApiClient

client = ApiClient(app_key="<your_app_key>", app_secret="<your_app_secret>", region_id="<region_id>")
client.add_endpoint("<region_id>", "<endpoint>")

2. Set by Request, and it only takes effect for the current Request. The sample code is as follows.

from webullsdkmdata.request.get_instruments_request import GetInstrumentsRequest

request = GetInstrumentsRequest()
request.set_endpoint("<endpoint>")

Java

1. Set through EndpointResolver and take effect globally. The sample code is as follows.

EndpointResolver.getDefault().addEndpoint("<region_id>", ApiModule.API, "<endpoint>");

2. By setting HttpApiConfig, it only takes effect for the current Client/Service instance. The sample code is as follows.

HttpApiConfig apiConfig = HttpApiConfig.builder()
        .appKey("<your_app_key>")
        .appSecret("<your_app_secret>")
        .regionId("<region_id>")
        .endpoint("<endpoint>")
        .build();
// HttpApiClient client = new HttpApiClient(apiConfig);
TradeApiService apiService = new TradeHttpApiService(apiConfig);

3. By setting HttpRequest, it is only valid for the current Request. The sample code is as follows.

HttpApiConfig apiConfig = HttpApiConfig.builder()
        .appKey("<your_app_key>")
        .appSecret("<your_app_secret>")
        .regionId("<region_id>")
        .build();
HttpApiClient client = new HttpApiClient(apiConfig);
HttpRequest request = new HttpRequest("<endpoint>", "/trade/instrument", Versions.V1, HttpMethod.GET);
Map<String, Object> params = new HashMap<>();
params.put("instrument_id", instrumentId);
request.setQuery(params);
InstrumentInfo instrumentInfo = client.request(request).responseType(InstrumentInfo.class).doAction();

Quote Subscription

Python

1. By setting the api_endpoint parameter, the user can implement the Endpoint of the custom gRPC API. The sample code is as follows.

from webullsdkmdata.quotes.subscribe.default_client import DefaultQuotesClient

quotes_client = DefaultQuotesClient(
    "<your_app_key>", "<your_app_secret>", "<region_id>", api_endpoint="<api_endpoint>")

2. By setting the host and port parameters, the user can implement the Endpoint of the custom MQTT protocol. The sample code is as follows.

from webullsdkmdata.quotes.subscribe.default_client import DefaultQuotesClient

quotes_client = DefaultQuotesClient(
    "<your_app_key>", "<your_app_secret>", "<region_id>")

quotes_client.connect_and_loop_start(host="<host>", port="<port>")

Java

By setting the host, port and apiClient parameter, the user can implement the Endpoint of the custom gRPC API or MQTT protocol. The sample code is as follows.

QuotesApiClient quotesApiClient = QuotesApiClient.builder()
        .appKey("<your_app_key>")
        .appSecret("<your_app_secret>")
        .host("<api_endpoint>")
        .port(443)
        .build();
QuotesSubsClient quotesSubsClient = QuotesSubsClient.builder()
        .appKey("<your_app_key>")
        .appSecret("<your_app_secret>")
        .host("<host>")
        .port(8883)
        .apiClient(quotesApiClient)
        .build();

Trade Events Subscription

By setting the parameters of host and port, the user can implement the endpoint of the custom gRPC protocol. The sample code is as follows.

Python

from webullsdktradeeventscore.events_client import EventsClient

events_client = EventsClient("<your_app_key>", "<your_app_secret>", region_id="<region_id>", host="<host>",
                             port="<port>")

Java

EventClient client = EventClient.builder()
        .appKey("<your_app_key>")
        .appSecret("<your_app_secret>")
        .host("<host>")
        .port(443)
        .build();