HTTP Context

Use ctx.session() to access query parameters, headers, and cookies within any pipeline step:

@Override
public RequestPipeline<EchoResponse> handle(HttpStream<EchoRequest, MyState> e) {
    return e.complete(ctx -> {
        // Read from request
        String query = ctx.session().getQueryParam("search");
        String header = ctx.session().getRequestHeader("X-Request-Id");
        HttpCookie cookie = ctx.session().getRequestCookie("session");

        // Write to response
        ctx.session().addResponseHeader("X-Response-Id", "abc");
        ctx.session().addResponseCookie(new HttpCookie("session", "new-value"));

        return HttpResult.success(new EchoResponse(query, header));
    });
}

Available Methods

Reading from the Request

Method	Description
getQueryParam(name)	Get a query parameter value
getRequestHeader(name)	Get a request header value
getRequestCookie(name)	Get a request cookie
getPathParam(name)	Get a path parameter value

Writing to the Response

Method	Description
addResponseHeader(name, value)	Add a response header
addResponseCookie(cookie)	Add a response cookie