added small example for using crow

Author: StephanKa

cmake/Conan.cmake

@@ -18,6 +18,7 @@ macro(run_conan)
     sml/1.1.5
     nlohmann_json/3.10.5
     boost/1.78.0
+    crowcpp-crow/1.0+1
     OPTIONS
     ${CONAN_EXTRA_OPTIONS}
     gtest:build_gmock=True

src/CMakeLists.txt

@@ -1,5 +1,6 @@
 OPTION(CPP_STARTER_USE_SML "Enable compilation of SML sample" OFF)
 OPTION(CPP_STARTER_USE_BOOST_BEAST "Enable compilation of boost beast sample" OFF)
+OPTION(CPP_STARTER_USE_CROW "Enable compilation of crow sample" OFF)
 
 # SML
 IF(CPP_STARTER_USE_SML)
@@ -13,6 +14,12 @@ IF(CPP_STARTER_USE_BOOST_BEAST)
     ADD_SUBDIRECTORY(boost.beast)
 ENDIF()
 
+# Crow
+IF(CPP_STARTER_USE_BOOST_BEAST)
+    MESSAGE("Using Crow")
+    ADD_SUBDIRECTORY(crow)
+ENDIF()
+
 
 # Generic test that uses conan libs
 ADD_EXECUTABLE(intro main.cpp)
@@ -23,4 +30,3 @@ TARGET_LINK_LIBRARIES(
         CONAN_PKG::docopt.cpp
         CONAN_PKG::fmt
         CONAN_PKG::spdlog)
-

src/crow/CMakeLists.txt

@@ -0,0 +1,2 @@
+ADD_EXECUTABLE(test_crow main.cpp)
+TARGET_LINK_LIBRARIES(test_crow PRIVATE CONAN_PKG::crowcpp-crow CONAN_PKG::spdlog)

src/crow/main.cpp

@@ -0,0 +1,51 @@
+/* example usage of crow-cpp http://crowcpp.org/ */
+#include "crow.h"
+
+class a : public crow::returnable
+{
+public:
+  a() : returnable("text/plain"){};
+
+  std::string dump() const override
+  {
+    return "ABCDF";
+  }
+};
+
+int main()
+{
+  constexpr uint16_t port = 8080;
+  std::vector<int> values;
+  crow::SimpleApp app;
+
+  CROW_ROUTE(app, "/")
+  ([]() {
+    return "Hello world";
+  });
+
+  CROW_ROUTE(app, "/json")
+  ([] {
+    crow::json::wvalue returnValue({ { "message", "Hello, World!" } });
+    returnValue["message2"] = "Hello, World.. Again!";
+    return returnValue;
+  });
+
+  CROW_ROUTE(app, "/custom")
+  ([] {
+    return a();
+  });
+
+  CROW_ROUTE(app, "/hello/<int>").methods(crow::HTTPMethod::POST)([&values](int count) {
+    values.push_back(count);
+    return crow::response(std::to_string(count));
+  });
+
+  CROW_ROUTE(app, "/hello/").methods(crow::HTTPMethod::GET)([&values]() {
+    crow::json::wvalue returnValue;
+    returnValue["values"] = values;
+    return returnValue;
+  });
+
+  app.port(port).run();
+  return 0;
+}