MIF is a C++11 web-application framework designed for the backend micro-service development. The framework makes use of additional type meta-information.
1.5.1
NOTE: The master branch is actively developed, use latest release for production use.
- Network classes for the easy creation of simple web services
- Interface-based RPC marshalling with the callback support
- Reflection for c++ data structures with the inheritance support
- Json, Xml serialization and the ability to use boost archives
- Database support (Implemented for PostgreSQL)
Lastly tested on gcc 13.2
Linux (Lastly tested on Ubuntu 23.10)
- Boost
- zlib
- libpq
git clone https://github.com/tdv/mif.git
cd mif
./download_third_party.sh
mkdir build
cd build
cmake ..
make
make install NOTE: In Ubuntu you might have to install some additional packages: liblz4-dev, pkgconf, bison, flex
You can try using CMAKE_INSTALL_PREFIX to select the installation directory
After mif is built, you can build examples
cd mif/examples/{sample_project}
mkdir build
cd build
cmake ..
make NOTE: To develop your applications, you can use the application template. After downloading the MIF project, follow the steps
cd mif/template
mkdir build
cd build
cmake ..
make After that you can change this template to create your own application. In addition, you can use the examples doned from the template. Examples are fully completed and have a script for build itself. All of them are in the _docs folder. You can find detailed documentation of the examples in the wiki.
Server:
cd mif/exammples/{sample_project}/bin
./{sample_project}_server Client:
cd mif/exammples/{sample_project}/bin
./{sample_project}_client Please use --help to get more information about runing an example
Source code
Description
The example demonstrates the work of the simple HTTP echo server.
HTTP-echo-server
// MIF
#include <mif/application/http_server.h>
#include <mif/common/log.h>
#include <mif/net/http/constants.h>
class Application
: public Mif::Application::HttpServer
{
public:
using HttpServer::HttpServer;
private:
// Mif.Application.HttpServer
virtual void Init(Mif::Net::Http::ServerHandlers &handlers) override final
{
handlers["/"] = [] (Mif::Net::Http::IInputPack const &request,
Mif::Net::Http::IOutputPack &response)
{
auto data = request.GetData();
MIF_LOG(Info) << "Process request \"" << request.GetPath() << request.GetQuery() << "\"\t Data: "
<< (data.empty() ? std::string{"null"} : std::string{std::begin(data), std::end(data)});
response.SetCode(Mif::Net::Http::Code::Ok);
response.SetHeader(Mif::Net::Http::Constants::Header::Connection::Value,
Mif::Net::Http::Constants::Value::Connection::Close::Value);
response.SetData(std::move(data));
};
}
};
int main(int argc, char const **argv)
{
return Mif::Application::Run<Application>(argc, argv);
}Test
curl -iv -X POST "http://localhost:55555/" -d 'Test data'Source code
Description
The example demonstrates the work of the HTTP server with dual interface for processing raw HTTP requests and MIF RPC by HTTP. More you can see in the chapter "Web service. Additional"
Source code
Description
The "Hello World" example demonstrates a basic client-server application with the interface-based RPC marshaling and TCP communication with using boost.archives for data serialization
Basic steps for building a client-server application with RPC
- define interface
- add meta-information about interface and methods
- create a data flow processing chain from a set of handler elements or use one of the prepared applications templates
- implement interface on the server side and create a server application
- create communication channel and proxy objects on the client side and create a client application
// STD
#include <string>
// MIF
#include <mif/service/iservice.h>
namespace Service
{
struct IHelloWorld
: public Mif::Service::Inherit<Mif::Service::IService>
{
virtual void AddWord(std::string const &word) = 0;
virtual std::string GetText() const = 0;
virtual void Clean() = 0;
};
} // namespace ServiceCommon interface meta-information
// STD
#include <string>
// MIF
#include <mif/remote/ps.h>
// THIS
#include "common/interface/ihello_world.h"
namespace Service
{
namespace Meta
{
using namespace ::Service;
MIF_REMOTE_PS_BEGIN(IHelloWorld)
MIF_REMOTE_METHOD(AddWord)
MIF_REMOTE_METHOD(GetText)
MIF_REMOTE_METHOD(Clean)
MIF_REMOTE_PS_END()
} // namespace Meta
} // namespace Service
MIF_REMOTE_REGISTER_PS(Service::Meta::IHelloWorld)Server interface implementation
...
// MIF
#include <mif/service/creator.h>
// THIS
#include "common/id/service.h"
#include "common/interface/ihello_world.h"
namespace Service
{
namespace Detail
{
namespace
{
class HelloWorld
: public IHelloWorld
{
public:
...
private:
...
// IHelloWorld
virtual void AddWord(std::string const &word) override final
{
...
}
virtual std::string GetText() const override final
{
...
}
virtual void Clean() override final
{
...
}
};
} // namespace
} // namespace Detail
} // namespace Service
MIF_SERVICE_CREATOR
(
::Service::Id::HelloWorld,
::Service::Detail::HelloWorld
)// MIF
#include <mif/application/tcp_service.h>
// COMMON
#include "common/id/service.h"
#include "common/ps/ihello_world.h"
class Application
: public Mif::Application::TcpService
{
public:
using TcpService::TcpService;
private:
// Mif.Application.TcpService
virtual void Init(Mif::Service::FactoryPtr factory) override final
{
factory->AddClass<Service::Id::HelloWorld>();
}
};
int main(int argc, char const **argv)
{
return Mif::Application::Run<Application>(argc, argv);
}// MIF
#include <mif/application/tcp_service_client.h>
#include <mif/common/log.h>
// COMMON
#include "common/ps/ihello_world.h"
class Application
: public Mif::Application::TcpServiceClient
{
public:
using TcpServiceClient::TcpServiceClient;
private:
// Mif.Application.TcpServiceClient
virtual void Init(Mif::Service::IFactoryPtr factory) override final
{
auto service = factory->Create<Service::IHelloWorld>("HelloWorld");
MIF_LOG(Info) << "Add words.";
service->AddWord("Hello");
service->AddWord("World");
service->AddWord("!!!");
MIF_LOG(Info) << "Result from server: \"" << service->GetText() << "\"";
MIF_LOG(Info) << "Clean.";
service->Clean();
MIF_LOG(Info) << "Result from server: \"" << service->GetText() << "\"";
}
};
int main(int argc, char const **argv)
{
return Mif::Application::Run<Application>(argc, argv);
}Source code
Description
This example is the same as "Hello World". The difference is in calling remote methods with user-defined data structures as parameters and returning a value. The project structure is the same as in the previous project example, we only add the definition of user-defined data structures and meta-information.
// STD
#include <cstdint>
#include <map>
#include <string>
namespace Service
{
namespace Data
{
using ID = std::string;
struct Human
{
std::string name;
std::string lastName;
std::uint32_t age = 0;
};
enum class Position
{
Unknown,
Developer,
Manager
};
struct Employee
: public Human
{
Position position = Position::Unknown;
};
using Employees = std::map<ID, Employee>;
} // namespace Data
} // namespace Service// MIF
#include <mif/reflection/reflect_type.h>
// THIS
#include "common/data/data.h"
namespace Service
{
namespace Data
{
namespace Meta
{
MIF_REFLECT_BEGIN(Human)
MIF_REFLECT_FIELD(name)
MIF_REFLECT_FIELD(lastName)
MIF_REFLECT_FIELD(age)
MIF_REFLECT_END()
MIF_REFLECT_BEGIN(Position)
MIF_REFLECT_FIELD(Unknown)
MIF_REFLECT_FIELD(Developer)
MIF_REFLECT_FIELD(Manager)
MIF_REFLECT_END()
MIF_REFLECT_BEGIN(Employee, Human)
MIF_REFLECT_FIELD(position)
MIF_REFLECT_END()
} // namespace Meta
} // namespace Data
} // namespace Service
MIF_REGISTER_REFLECTED_TYPE(::Service::Data::Meta::Human)
MIF_REGISTER_REFLECTED_TYPE(::Service::Data::Meta::Position)
MIF_REGISTER_REFLECTED_TYPE(::Service::Data::Meta::Employee)Source code
Description
Compared to the previous examples this one adds the inteface inheritance. In the implementation you can query an interface which is out of hierarchy.
Source code
Description
The "Visitor" example demonstrates the mechanism of remote callbacks for interface methods. This can be used as a starting point for publish / subscribe based applications.
Source code
Description
The example demonstrates the Json API (CRUD operations) on HTTP server.
Test
- run PostgreSQL
- apply DB schema from folder db
- modify config/config.xml
- run http_crud server with parameter --config (in folder 'bin' execute ./http_crud --config=../config/config.xml)
- execute commands
curl -i -X POST "http://localhost:55555/employee/create" -d '{"name":"Ivan", "lastName":"Ivanov","age":33,"email":"[email protected]","position":"Developer","rate":200000.00}'
curl -i "http://localhost:55555/employee/read?id=1"
curl -i "http://localhost:55555/employee/update?id=1" -d '{"name":"Ivan", "lastName":"Ivanov","age":33,"email":"[email protected]","position":"Developer","rate":220000.00}'
curl -i "http://localhost:55555/employee/list?limit=2&offset=0"
curl -i "http://localhost:55555/employee/delete?id=1"Source code
Description
The example demonstrates communication between two microservices (the example is more powerful version of http crud).
Test
- run PostgreSQL
- apply DB schema from folder db
- modify config/storage.xml
- run components
./storage —config=storage.xml
./service --config=service.xml- execute commands
curl -i -X POST "http://localhost:55555/employee/create" -d '{"name":"Ivan", "lastName":"Ivanov","age":33,"email":"[email protected]","position":"Developer","rate":200000.00}'
curl -i "http://localhost:55555/employee/read?id=1"
curl -i "http://localhost:55555/employee/update?id=1" -d '{"name":"Ivan", "lastName":"Ivanov","age":33,"email":"[email protected]","position":"Developer","rate":220000.00}'
curl -i "http://localhost:55555/employee/list?limit=2&offset=0"
curl -i "http://localhost:55555/employee/delete?id=1"Source code
Description
The example demonstrates the mechanism of C++ data struct reflection. This can be used as a starting point for building application with serialization, ORM and REST API.
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