How to create a query module in C++

C API modules need to be compiled to a shared library so that they can be loaded when Memgraph starts. This means that you can write the procedures in any programming language that can work with C and be compiled to the ELF shared library format (.so). mg_procedure.h that can be found in Memgraph installation directory /usr/include/memgraph contains declarations of all functions that can be used to implement a query module procedure. To compile the module, you will have to pass the appropriate flags to the compiler, for example, clang:

clang -Wall -shared -fPIC -I /usr/include/memgraph example.c -o example.so

For more information, check the C API reference guide.
We also made an example module to help you start developing your own modules.