The aim of this project is to provide a library system for the management and borrowing of books. This repository contains the backend components of the system.

The backend consists of five microservices and a helpers library. The source code of each microservice resides in its own sub-directory, which is named after the microservice.

The table below provides an overview of the services.

The helpers library resides in helpers/.

For more detailed information about how the services work together, refer to ARCHITECTURE.md. Specific implementation details about an individual service and how to run it can be found in the README.md, of the respective service directory.

For more details about our cyber security and privacy efforts please refer to SECURITY.md.

There are two supported ways to build the services, either locally (see Chapter: 2.1 Building from Source) or inside a Docker container (see Chapter: 2.2 Building with Docker).

To build from source, please clone this repository and make sure you have a working installation of the Rust compiler and Cargo package manager, minimum version is 1.41. Please refer to the Rust website, to learn more about how to download and install Rust. Furthermore, there are required external dependencies (see Chapter: 2.1.1 External Dependencies).

Each command has to be executed in the repository root directory.

Execute cargo build to build all services or cargo build --bin=<service> command to build a specific one, while <service> is the name of the respective service. The helpers library will be automatically included, if necessary. To only build the helpers library, execute cargo build --lib=helpers.

The table below, provides an overview of the required build dependencies.

Please refer to the individual dependency documentation, to learn more about how it is made available on your platform.

To build a Docker image, please make sure you have obtained a copy of the repository and a working installation of Docker. Please refer to the Docker website, to learn more about how to download and install Docker.

Each command has to be executed in the repository root directory.

Execute docker build -f <service>/Dockerfile -t code-library-<service> . command, while <service> is the name of the respective service to build.

All development has to happen inside of separate branches. Every branch name is prefixed with its purpose of creation. The used prefixes are the same as the Github labels for pull requests. The master branch is protected and requires pull request and an approval of at least one reviewer. The used merge method is rebasing.