Okapi — a multitenant API Gateway

Copyright (C) 2015-2021 The Open Library Foundation

This software is distributed under the terms of the Apache License, Version 2.0. See the file "LICENSE" for more information.

System requirements

The Okapi software has the following compile-time dependencies:

• Java 11

• Apache Maven 3.3.x or higher

The test suite has these additional dependencies:

• Docker, for details see https://www.testcontainers.org/supported_docker_environment/

• Ports 9230-9239 must be free

Note: If tests fail, the API Gateway may be unable in some cases to shut down microservices that it has spawned, and they may need to be terminated manually.

Quick start

To build and run:

$ mvn install
$ mvn exec:exec

Okapi listens on port 9130.

To build without running the test suite:

$ mvn install -DskipTests

Developers

When running unit tests, property testStorage controls what storage to use. It has a default value of inmemory,postgres,mongo. Tests will complete faster by specifying one storage type only.

For example:

$ mvn -DtestStorage=inmemory install

When filing bug reports with unit test output, always use Maven option -B to avoid control characters in output.

Docker image

At Docker Hub:

• https://hub.docker.com/r/folioorg/okapi released versions
• https://hub.docker.com/r/folioci/okapi snapshot versions

See Automation/Docker Hub for details.

Docker images are the primary distribution model for FOLIO modules. To run the images you will need the Docker Engine or Docker Desktop runtime.

Ubuntu package

Import the FOLIO signing key and add the FOLIO apt repository for Ubuntu 20.04 LTS (Focal Fossa):

wget -q -O - https://repository.folio.org/packages/debian/folio-apt-archive-key.asc | sudo apt-key add -
sudo add-apt-repository "deb https://repository.folio.org/packages/ubuntu/ focal/"

Documentation

• Okapi Guide and Reference
• Documentation index
• Contributing guidelines
• Securing in the doc directory shows how to enable security-related modules.
• Folio Sample Modules. There is a decent README, and some minimal sample modules to get started with
• Other FOLIO Developer documentation is at dev.folio.org
• See project OKAPI at the FOLIO issue tracker