1. rest使用方式
(1)GET
http_client restclient("https://test.123456.com"); // base url http_request request(methods::GET); request.headers().add("TestKey", "TestValue"); request.headers().add("Content-Type", "application/json"); uri_builder builder("/api/test/get_something"); // 是base url后边的地址
builder.append_query("price", 100);
char temp[24];
sprintf(temp, "%.8f", 20);
builder.append_query("amount", temp);
builder.append_query("label", "123456");
builder.append_query("name", "test");
builder.append_query("type", "new");
request.set_request_uri(builder.to_string()); // builder.to_string() = /api/test/get_something?price=100.0000&amount=20.00000000&label=123456&name=123456&type=new restclient.request(request).then([](http_response response) -> pplx::task<json::value> { // if the status is OK extract the body of the response into a JSON value works only when the content type is application\json auto code = response.status_code();//400, 401, 418, 429 if(code == status_codes::OK || code == status_codes::BadRequest || code == status_codes::TooManyRequests || code == status_codes::Unauthorized) { return response.extract_json(); } throw exception(); return pplx::task_from_result(json::value()); // return an empty JSON value
}).then([&](pplx::task<json::value> previousTask) { // get the JSON value from the task and display content from it
try {
json::value const & v = previousTask.get();
} catch (http_exception const & e) {
throw exception();
}
}) .wait();
(2) POST
http_client restclient("https://test.123456.com");
http_request request(methods::PUT); request.headers().add("TestKey", "TestValue"); request.headers().add("Content-Type", "application/json"); uri_builder builder("api/test/put_something"); request.set_request_uri(builder.to_string());
json::value body; body["price"] = json::value::number(100); body["amount"] = json::value::amount(10); body["label"] = json::value::string("123456"); body["name"] = json::value::number("test"); body["type"] = json::value::number("new"); request.set_body(body.serialize()); // body.to_string() = {"price":100,"amount":10,"label":"123456","name":"test","type":"new"} restclient.request(request).then([](http_response response) -> pplx::task<json::value> { // if the status is OK extract the body of the response into a JSON value works only when the content type is application\json auto code = response.status_code(); //400, 401, 418, 429 if(code == status_codes::OK || code == status_codes::BadRequest || code == status_codes::TooManyRequests || code == status_codes::Unauthorized) { return response.extract_json(); } throw exception(); // return an empty JSON value return pplx::task_from_result(json::value()); }).then([&](pplx::task<json::value> previousTask) { // get the JSON value from the task and display content from it try { json::value const & v = previousTask.get(); } catch (http_exception const & e) { throw exception(); } }).wait();
2. websocket连接,接收,订阅
uri_builder builder("wss://test.123456.com");
builder.append_path("/ws/api/test");
websocket_callback_client m_wsclient;
m_wsclient.close();
m_wsclient.connect(builder.to_string())
.then([&]() {
std::function<void (const websocket_incoming_message &msg)> f;
f = std::bind(&TestClass::On_WebSocketMsg, this, placeholders::_1);
m_wsclient.set_message_handler(f);
std::function<void (websocket_close_status close_status,
const utility::string_t& reason,
const std::error_code& error)> c;
c = std::bind(&TestClass::On_CloseMsg, this, placeholders::_1, placeholders::_2, placeholders::_3);
m_wsclient.set_close_handler(c);
})
.wait();
class TestClass {
public:
void On_WebSocketMsg(const websocket_incoming_message& msg) {
auto type = (int)msg.message_type();
if (type == 2 || type == 3) {
// send ping
} else if (type == 0) {
msg.extract_string().then([](const string s) {
web::json::value res = json::value::parse(s.c_str());
if (res.has_field("result")) {
}
})
}
}
void On_CloseMsg(websocket_close_status close_status, const utility::string_t& reason, const std::error_code& error) {
}
void Ping() {
websocket_outgoing_message out_msg;
out_msg.set_ping_message();
m_wsclient.send(out_msg);
}
void Pong() {
websocket_outgoing_message out_msg;
out_msg.set_pong_message();
m_wsclient.send(out_msg);
}
void Subscribe() {
websocket_outgoing_message out_msg;
json::value msg;
//msg["method"] = json::value::string("public/subscribe");
msg["method"] = json::value::string("private/subscribe");
//json::value channel = json::value::string("ticker.BTC-11MAR22-30000-C.100ms");
json::value channel = json::value::string("user.orders.BTC-PERPETUAL.100ms");
vector<json::value> v;
v.push_back(channel);
json::value params;
params["channels"] = json::value::array(v);
params["access_token"] = json::value::string("access_token"); // 添加认证方式(如果需要的话)
msg["params"] = params;
std::cout << msg.to_string() << std::endl;
out_msg.set_utf8_message(msg.serialize());
m_wsclient.send(out_msg);
}
};