Add an example of prometheus (#2076)
This commit is contained in:
An Tao
an-tao
parent
a2f759e4cd
commit
f6913f6328
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@ -2,19 +2,20 @@
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The following examples can help you understand how to use Drogon:
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1. [helloworld](https://github.com/an-tao/drogon/tree/master/examples/helloworld) - The multiple ways of "Hello, World!"
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2. [client_example](https://github.com/an-tao/drogon/tree/master/examples/client_example/main.cc) - A client example.
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3. [websocket_client](https://github.com/an-tao/drogon/tree/master/examples/websocket_client/WebSocketClient.cc) - An example on how to use the WebSocket client
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4. [login_session](https://github.com/an-tao/drogon/tree/master/examples/login_session) - How to use the built-in session system to handle login and out
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5. [file_upload](https://github.com/an-tao/drogon/tree/master/examples/file_upload) - How to handle file uploads in Drogon
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6. [simple_reverse_proxy](https://github.com/an-tao/drogon/tree/master/examples/simple_reverse_proxy) - A Example showing how to use drogon as a http reverse
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1. [helloworld](https://github.com/drogonframework/drogon/tree/master/examples/helloworld) - The multiple ways of "Hello, World!"
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2. [client_example](https://github.com/drogonframework/drogon/tree/master/examples/client_example/main.cc) - A client example.
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3. [websocket_client](https://github.com/drogonframework/drogon/tree/master/examples/websocket_client/WebSocketClient.cc) - An example on how to use the WebSocket client
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4. [login_session](https://github.com/drogonframework/drogon/tree/master/examples/login_session) - How to use the built-in session system to handle login and out
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5. [file_upload](https://github.com/drogonframework/drogon/tree/master/examples/file_upload) - How to handle file uploads in Drogon
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6. [simple_reverse_proxy](https://github.com/drogonframework/drogon/tree/master/examples/simple_reverse_proxy) - A Example showing how to use drogon as a http reverse
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proxy with a simple round robin.
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7. [benchmark](https://github.com/an-tao/drogon/tree/master/examples/benchmark) - Basic benchmark example. see [wiki benchmarks](https://github.com/an-tao/drogon/wiki/13-Benchmarks)
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8. [jsonstore](https://github.com/an-tao/drogon/tree/master/examples/jsonstore) - Implementation of a [jsonstore](https://github.com/bluzi/jsonstore)-like storage service that is concurrent and stores in memory. Serving as a showcase on how to build a minimally useful RESTful APIs in Drogon.
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9. [redis](https://github.com/an-tao/drogon/tree/master/examples/redis) - A simple example of Redis
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7. [benchmark](https://github.com/drogonframework/drogon/tree/master/examples/benchmark) - Basic benchmark example. see [wiki benchmarks](https://github.com/drogonframework/drogon/wiki/13-Benchmarks)
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8. [jsonstore](https://github.com/drogonframework/drogon/tree/master/examples/jsonstore) - Implementation of a [jsonstore](https://github.com/bluzi/jsonstore)-like storage service that is concurrent and stores in memory. Serving as a showcase on how to build a minimally useful RESTful APIs in Drogon.
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9. [redis](https://github.com/drogonframework/drogon/tree/master/examples/redis) - A simple example of Redis
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10. [websocket_server](https://github.com/drogonframework/drogon/tree/master/examples/websocket_server) - Example WebSocker chat room server
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11. [redis_cache](https://github.com/an-tao/drogon/tree/master/examples/redis_cache) - An example for using coroutines of redis clients
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12. [redis_chat](https://github.com/an-tao/drogon/tree/master/examples/redis_chat) - A chatroom server built with websocket and redis pub/sub service.
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11. [redis_cache](https://github.com/drogonframework/drogon/tree/master/examples/redis_cache) - An example for using coroutines of redis clients
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12. [redis_chat](https://github.com/drogonframework/drogon/tree/master/examples/redis_chat) - A chatroom server built with websocket and redis pub/sub service.
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13. [prometheus_example](https://github.com/drogonframework/drogon/tree/master/examples/prometheus_example) - An example of how to use the Prometheus exporter in Drogon.
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### [TechEmpower Framework Benchmarks](https://github.com/TechEmpower/FrameworkBenchmarks) test suite
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@ -0,0 +1,561 @@
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# Created by https://www.toptal.com/developers/gitignore/api/intellij+all,visualstudio,visualstudiocode,cmake,c,c++
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# Including strong name files can present a security risk
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||||
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*- [Bb]ackup ([0-9][0-9]).rdl
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||||
# Microsoft Fakes
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|
||||
|
||||
# Visual Studio 6 build log
|
||||
*.plg
|
||||
|
||||
# Visual Studio 6 workspace options file
|
||||
*.opt
|
||||
|
||||
# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
|
||||
*.vbw
|
||||
|
||||
# Visual Studio LightSwitch build output
|
||||
**/*.HTMLClient/GeneratedArtifacts
|
||||
**/*.DesktopClient/GeneratedArtifacts
|
||||
**/*.DesktopClient/ModelManifest.xml
|
||||
**/*.Server/GeneratedArtifacts
|
||||
**/*.Server/ModelManifest.xml
|
||||
_Pvt_Extensions
|
||||
|
||||
# Paket dependency manager
|
||||
.paket/paket.exe
|
||||
paket-files/
|
||||
|
||||
# FAKE - F# Make
|
||||
.fake/
|
||||
|
||||
# CodeRush personal settings
|
||||
.cr/personal
|
||||
|
||||
# Python Tools for Visual Studio (PTVS)
|
||||
__pycache__/
|
||||
*.pyc
|
||||
|
||||
# Cake - Uncomment if you are using it
|
||||
# tools/**
|
||||
# !tools/packages.config
|
||||
|
||||
# Tabs Studio
|
||||
*.tss
|
||||
|
||||
# Telerik's JustMock configuration file
|
||||
*.jmconfig
|
||||
|
||||
# BizTalk build output
|
||||
*.btp.cs
|
||||
*.btm.cs
|
||||
*.odx.cs
|
||||
*.xsd.cs
|
||||
|
||||
# OpenCover UI analysis results
|
||||
OpenCover/
|
||||
|
||||
# Azure Stream Analytics local run output
|
||||
ASALocalRun/
|
||||
|
||||
# MSBuild Binary and Structured Log
|
||||
*.binlog
|
||||
|
||||
# NVidia Nsight GPU debugger configuration file
|
||||
*.nvuser
|
||||
|
||||
# MFractors (Xamarin productivity tool) working folder
|
||||
.mfractor/
|
||||
|
||||
# Local History for Visual Studio
|
||||
.localhistory/
|
||||
|
||||
# BeatPulse healthcheck temp database
|
||||
healthchecksdb
|
||||
|
||||
# Backup folder for Package Reference Convert tool in Visual Studio 2017
|
||||
MigrationBackup/
|
||||
|
||||
# Ionide (cross platform F# VS Code tools) working folder
|
||||
.ionide/
|
||||
|
||||
# Fody - auto-generated XML schema
|
||||
FodyWeavers.xsd
|
||||
|
||||
### VisualStudio Patch ###
|
||||
# Additional files built by Visual Studio
|
||||
*.tlog
|
||||
|
||||
# End of https://www.toptal.com/developers/gitignore/api/intellij+all,visualstudio,visualstudiocode,cmake,c,c++
|
||||
|
|
@ -0,0 +1,75 @@
|
|||
cmake_minimum_required(VERSION 3.5)
|
||||
project(prometheus_example CXX)
|
||||
|
||||
include(CheckIncludeFileCXX)
|
||||
|
||||
check_include_file_cxx(any HAS_ANY)
|
||||
check_include_file_cxx(string_view HAS_STRING_VIEW)
|
||||
check_include_file_cxx(coroutine HAS_COROUTINE)
|
||||
if (NOT "${CMAKE_CXX_STANDARD}" STREQUAL "")
|
||||
# Do nothing
|
||||
elseif (HAS_ANY AND HAS_STRING_VIEW AND HAS_COROUTINE)
|
||||
set(CMAKE_CXX_STANDARD 20)
|
||||
elseif (HAS_ANY AND HAS_STRING_VIEW)
|
||||
set(CMAKE_CXX_STANDARD 17)
|
||||
else ()
|
||||
set(CMAKE_CXX_STANDARD 14)
|
||||
endif ()
|
||||
|
||||
set(CMAKE_CXX_STANDARD_REQUIRED ON)
|
||||
set(CMAKE_CXX_EXTENSIONS OFF)
|
||||
|
||||
add_executable(${PROJECT_NAME} main.cc)
|
||||
|
||||
# ##############################################################################
|
||||
# If you include the drogon source code locally in your project, use this method
|
||||
# to add drogon
|
||||
# add_subdirectory(drogon)
|
||||
# target_link_libraries(${PROJECT_NAME} PRIVATE drogon)
|
||||
#
|
||||
# and comment out the following lines
|
||||
find_package(Drogon CONFIG REQUIRED)
|
||||
target_link_libraries(${PROJECT_NAME} PRIVATE Drogon::Drogon)
|
||||
|
||||
# ##############################################################################
|
||||
|
||||
if (CMAKE_CXX_STANDARD LESS 17)
|
||||
message(FATAL_ERROR "c++17 or higher is required")
|
||||
elseif (CMAKE_CXX_STANDARD LESS 20)
|
||||
message(STATUS "use c++17")
|
||||
else ()
|
||||
message(STATUS "use c++20")
|
||||
endif ()
|
||||
|
||||
aux_source_directory(controllers CTL_SRC)
|
||||
aux_source_directory(filters FILTER_SRC)
|
||||
aux_source_directory(plugins PLUGIN_SRC)
|
||||
aux_source_directory(models MODEL_SRC)
|
||||
|
||||
drogon_create_views(${PROJECT_NAME} ${CMAKE_CURRENT_SOURCE_DIR}/views
|
||||
${CMAKE_CURRENT_BINARY_DIR})
|
||||
# use the following line to create views with namespaces.
|
||||
# drogon_create_views(${PROJECT_NAME} ${CMAKE_CURRENT_SOURCE_DIR}/views
|
||||
# ${CMAKE_CURRENT_BINARY_DIR} TRUE)
|
||||
# use the following line to create views with namespace CHANGE_ME prefixed
|
||||
# and path namespaces.
|
||||
# drogon_create_views(${PROJECT_NAME} ${CMAKE_CURRENT_SOURCE_DIR}/views
|
||||
# ${CMAKE_CURRENT_BINARY_DIR} TRUE CHANGE_ME)
|
||||
|
||||
target_include_directories(${PROJECT_NAME}
|
||||
PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/models)
|
||||
target_sources(${PROJECT_NAME}
|
||||
PRIVATE
|
||||
${SRC_DIR}
|
||||
${CTL_SRC}
|
||||
${FILTER_SRC}
|
||||
${PLUGIN_SRC}
|
||||
${MODEL_SRC})
|
||||
# ##############################################################################
|
||||
# uncomment the following line for dynamically loading views
|
||||
# set_property(TARGET ${PROJECT_NAME} PROPERTY ENABLE_EXPORTS ON)
|
||||
|
||||
# ##############################################################################
|
||||
|
||||
add_subdirectory(test)
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
{
|
||||
|
||||
"listeners": [
|
||||
{
|
||||
"address": "0.0.0.0",
|
||||
"port": 5555,
|
||||
"https": false
|
||||
}
|
||||
],
|
||||
"plugins": [
|
||||
{
|
||||
"name": "drogon::plugin::PromExporter",
|
||||
"dependencies": [],
|
||||
"config": {
|
||||
"path": "/metrics",
|
||||
"collectors":[
|
||||
{
|
||||
"name": "http_requests_total",
|
||||
"help": "The total number of http requests",
|
||||
"type": "counter",
|
||||
"labels": ["method", "path"]
|
||||
},
|
||||
{
|
||||
"name": "http_request_duration_seconds",
|
||||
"help": "The processing time of http requests, in seconds",
|
||||
"type": "histogram",
|
||||
"labels": ["method", "path"]
|
||||
}
|
||||
]
|
||||
}
|
||||
}
|
||||
]
|
||||
}
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
#include "PromTestCtrl.h"
|
||||
|
||||
using namespace drogon;
|
||||
|
||||
void PromTestCtrl::fast(const HttpRequestPtr &req,
|
||||
std::function<void(const HttpResponsePtr &)> &&callback)
|
||||
{
|
||||
auto resp = HttpResponse::newHttpResponse();
|
||||
resp->setBody("Hello, world!");
|
||||
callback(resp);
|
||||
}
|
||||
|
||||
drogon::AsyncTask PromTestCtrl::slow(
|
||||
const HttpRequestPtr req,
|
||||
std::function<void(const HttpResponsePtr &)> callback)
|
||||
{
|
||||
// sleep for a random time between 1 and 3 seconds
|
||||
static std::once_flag flag;
|
||||
std::call_once(flag, []() { srand(time(nullptr)); });
|
||||
auto duration = 1 + (rand() % 3);
|
||||
auto loop = trantor::EventLoop::getEventLoopOfCurrentThread();
|
||||
co_await drogon::sleepCoro(loop, std::chrono::seconds(duration));
|
||||
auto resp = HttpResponse::newHttpResponse();
|
||||
resp->setBody("Hello, world!");
|
||||
callback(resp);
|
||||
co_return;
|
||||
}
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
#pragma once
|
||||
|
||||
#include <drogon/HttpController.h>
|
||||
#include <drogon/utils/coroutine.h>
|
||||
|
||||
using namespace drogon;
|
||||
|
||||
class PromTestCtrl : public drogon::HttpController<PromTestCtrl>
|
||||
{
|
||||
public:
|
||||
METHOD_LIST_BEGIN
|
||||
ADD_METHOD_TO(PromTestCtrl::fast, "/fast", "PromStat");
|
||||
ADD_METHOD_TO(PromTestCtrl::slow, "/slow", "PromStat");
|
||||
METHOD_LIST_END
|
||||
|
||||
void fast(const HttpRequestPtr &req,
|
||||
std::function<void(const HttpResponsePtr &)> &&callback);
|
||||
drogon::AsyncTask slow(
|
||||
const HttpRequestPtr req,
|
||||
std::function<void(const HttpResponsePtr &)> callback);
|
||||
};
|
||||
|
|
@ -0,0 +1,52 @@
|
|||
/**
|
||||
*
|
||||
* PromStat.cc
|
||||
*
|
||||
*/
|
||||
|
||||
#include "PromStat.h"
|
||||
#include <drogon/plugins/PromExporter.h>
|
||||
#include <drogon/utils/monitoring/Counter.h>
|
||||
#include <drogon/utils/monitoring/Histogram.h>
|
||||
#include <drogon/HttpAppFramework.h>
|
||||
#include <chrono>
|
||||
|
||||
using namespace std::literals::chrono_literals;
|
||||
using namespace drogon;
|
||||
|
||||
Task<HttpResponsePtr> PromStat::invoke(const HttpRequestPtr &req,
|
||||
MiddlewareNextAwaiter &&next)
|
||||
{
|
||||
std::string path{req->matchedPathPattern()};
|
||||
auto method = req->methodString();
|
||||
auto promExporter = app().getPlugin<drogon::plugin::PromExporter>();
|
||||
if (promExporter)
|
||||
{
|
||||
auto collector =
|
||||
promExporter->getCollector<drogon::monitoring::Counter>(
|
||||
"http_requests_total");
|
||||
if (collector)
|
||||
{
|
||||
collector->metric({method, path})->increment();
|
||||
}
|
||||
}
|
||||
auto start = trantor::Date::date();
|
||||
auto resp = co_await next;
|
||||
if (promExporter)
|
||||
{
|
||||
auto collector =
|
||||
promExporter->getCollector<drogon::monitoring::Histogram>(
|
||||
"http_request_duration_seconds");
|
||||
if (collector)
|
||||
{
|
||||
static const std::vector<double> boundaries{
|
||||
0.0001, 0.001, 0.01, 0.1, 0.5, 1, 2, 3};
|
||||
auto end = trantor::Date::date();
|
||||
auto duration =
|
||||
end.microSecondsSinceEpoch() - start.microSecondsSinceEpoch();
|
||||
collector->metric({method, path}, boundaries, 1h, 6)
|
||||
->observe((double)duration / 1000000);
|
||||
}
|
||||
}
|
||||
co_return resp;
|
||||
}
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
/**
|
||||
*
|
||||
* PromStat.h
|
||||
*
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <drogon/HttpMiddleware.h>
|
||||
|
||||
using namespace drogon;
|
||||
|
||||
class PromStat : public HttpCoroMiddleware<PromStat>
|
||||
{
|
||||
public:
|
||||
PromStat()
|
||||
{
|
||||
void(0);
|
||||
}
|
||||
|
||||
virtual ~PromStat()
|
||||
{
|
||||
}
|
||||
|
||||
Task<HttpResponsePtr> invoke(const HttpRequestPtr &req,
|
||||
MiddlewareNextAwaiter &&next) override;
|
||||
};
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
#include <drogon/drogon.h>
|
||||
|
||||
int main()
|
||||
{
|
||||
drogon::app().loadConfigFile("../config.json").run();
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
cmake_minimum_required(VERSION 3.5)
|
||||
project(prometheus_example_test CXX)
|
||||
|
||||
add_executable(${PROJECT_NAME} test_main.cc)
|
||||
|
||||
# ##############################################################################
|
||||
# If you include the drogon source code locally in your project, use this method
|
||||
# to add drogon
|
||||
# target_link_libraries(${PROJECT_NAME} PRIVATE drogon)
|
||||
#
|
||||
# and comment out the following lines
|
||||
target_link_libraries(${PROJECT_NAME} PRIVATE Drogon::Drogon)
|
||||
|
||||
ParseAndAddDrogonTests(${PROJECT_NAME})
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
#define DROGON_TEST_MAIN
|
||||
#include <drogon/drogon_test.h>
|
||||
#include <drogon/drogon.h>
|
||||
|
||||
DROGON_TEST(BasicTest)
|
||||
{
|
||||
// Add your tests here
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
using namespace drogon;
|
||||
|
||||
std::promise<void> p1;
|
||||
std::future<void> f1 = p1.get_future();
|
||||
|
||||
// Start the main loop on another thread
|
||||
std::thread thr([&]() {
|
||||
// Queues the promise to be fulfilled after starting the loop
|
||||
app().getLoop()->queueInLoop([&p1]() { p1.set_value(); });
|
||||
app().run();
|
||||
});
|
||||
|
||||
// The future is only satisfied after the event loop started
|
||||
f1.get();
|
||||
int status = test::run(argc, argv);
|
||||
|
||||
// Ask the event loop to shutdown and wait
|
||||
app().getLoop()->queueInLoop([]() { app().quit(); });
|
||||
thr.join();
|
||||
return status;
|
||||
}
|
||||
|
|
@ -60,8 +60,10 @@ class Collector : public CollectorBase
|
|||
{
|
||||
}
|
||||
|
||||
template <typename... Arguments>
|
||||
const std::shared_ptr<T> &metric(
|
||||
const std::vector<std::string> &labelValues) noexcept(false)
|
||||
const std::vector<std::string> &labelValues,
|
||||
Arguments... args) noexcept(false)
|
||||
{
|
||||
if (labelValues.size() != labelsNames_.size())
|
||||
{
|
||||
|
|
@ -75,7 +77,8 @@ class Collector : public CollectorBase
|
|||
{
|
||||
return iter->second;
|
||||
}
|
||||
auto metric = std::make_shared<T>(name_, labelsNames_, labelValues);
|
||||
auto metric =
|
||||
std::make_shared<T>(name_, labelsNames_, labelValues, args...);
|
||||
metrics_[labelValues] = metric;
|
||||
return metrics_[labelValues];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -68,6 +68,7 @@ class DROGON_EXPORT Histogram : public Metric
|
|||
}
|
||||
}
|
||||
timeBuckets_.emplace_back();
|
||||
timeBuckets_.back().buckets.resize(bucketBoundaries.size() + 1);
|
||||
// check the bucket boundaries are sorted
|
||||
for (size_t i = 1; i < bucketBoundaries.size(); i++)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@ using namespace drogon::plugin;
|
|||
void PromExporter::initAndStart(const Json::Value &config)
|
||||
{
|
||||
path_ = config.get("path", path_).asString();
|
||||
LOG_ERROR << path_;
|
||||
LOG_TRACE << path_;
|
||||
auto &app = drogon::app();
|
||||
std::weak_ptr<PromExporter> weakPtr = shared_from_this();
|
||||
app.registerHandler(
|
||||
|
|
@ -130,7 +130,7 @@ static std::string exportCollector(
|
|||
auto const &samples = sampleGroup.samples;
|
||||
for (auto &sample : samples)
|
||||
{
|
||||
res.append(metricPtr->name());
|
||||
res.append(sample.name);
|
||||
if (!sample.exLabels.empty() || !metricPtr->labels().empty())
|
||||
{
|
||||
res.append("{");
|
||||
|
|
|
|||
Loading…
Reference in New Issue