Crow + Mongodb

This repository is just an example of how Crowcpp and Mongodb work, you can use this template to build your web backend

Used

Conan

• asio
• mongo-cxx-driver
• nlohmann_json

Submodules

• crowcpp

Building

Create build folder

mkdir build && cd build

Install deps from Conan

conan install .. --output-folder=conan --build=missing

CMake building & compilation (Clnag), used conan toolchain file

CC=/usr/bin/clang CXX=/usr/bin/clang++ cmake -DCMAKE_BUILD_TYPE=Release .. -G 
"Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE=./conan/conan_toolchain.cmake

cmake --build . -j4

Dependencies

• CMake 3.22
• Conan (Python 3.10)
• Compilers Clang/GCC

API Reference

GET localhost:18080/user

Parameter	Type	Description
oid	string	http param

POST localhost:18080/user

Parameter	Type	Description
oid	string	http param
body	json	json data user

PUT localhost:18080/user

Parameter	Type	Description
oid	string	http param
body	json	json data user

DELETE localhost:18080/user

Parameter	Type	Description
oid	string	http param

User model example raw body json:

{
    "age": 26,
    "name": "miroslaw",
    "nick": "witcherofthorns",
    "photo": "http://domain/img/file.jpg"
}

FAQ

Why didn't you use CrowCpp from Conan?

• I couldn't use CrowCpp from Conan because I'm using the new latest version of CrowCpp v1.1.0 (Pre-Release) and it's still not available in the Conan Package Center yet. I used this particular version because it is the newest and latest version of Crow for a long time with a large number of fixes and with the transition to Asio instead of Boost

Why is everything written functionally and no classes are used?

• Everything is written in a functional style, because I don’t see the point of using classes in a place where there is simply no point in using them, because the behavior of mongodb or crowcpp is essentially pre-defined, it’s pointless. But if you really want to use classes, you can copy all the source code and create your own simple Singleton class from it