API Mediation Layer

Workflows status overview

The API Mediation Layer (API ML) provides a single point of access for mainframe service REST APIs. The API ML offers enterprise, cloud-like features such as high-availability, scalability, dynamic API discovery, consistent security, a single sign-on experience, and documentation. The API ML consists of three components: the Gateway, the Discovery Service, and the API Catalog. The API ML facilitates secure communication across loosely coupled microservices through the API Gateway. The Discovery Service enables you to determine the location and status of service instances running inside the API ML ecosystem. The API Catalog provides a user-friendly, easy-to-use interface to view all discovered services, their associated APIs, and Swagger documentation.

Notes:

• For more general information for end-users, see the API ML Overview.
• To learn more about changes to the API ML, consult the CHANGELOG.
• For developers, review the developer documentation and the Contributor guidelines.

Contents

• Run API Mediation Layer locally
  • Prerequisites
  • Quick start
• Security
• Run integration tests
• Certificates
• Contributor guidelines
• Local configuration of services
• Onboarding Services
• More Information
• Contact Us

Run API Mediation Layer locally

Prerequisites

The following platform is required to run the API Mediation Layer:

• IBM Semeru JDK Java 17 or later

The following tools are required to build and develop the API Mediation Layer:

• Node.js and npm are required to be installed globally to run npm commands in project root folder.

  • https://nodejs.org/dist/

  • During build, correct node version is automatically downloaded and built with.

Quick start

Follow these steps:

1. Build all modules:

 ./gradlew build

2. Install the same version of the concurrently globally:

 npm install -g concurrently@^6.0.0

3. Run all service on your local machine:

 npm run api-layer

Security

By default, the API Mediation Layer for local development uses mock zOSMF as the authentication provider. For development purposes, log in using the default setting USER for the username, and validPassword as the password

The API Mediation Layer can also use dummy credentials for development purposes. For development purposes, log in using the default setting user for the username, and user as the password.

Configure dummy credentials provider

Configure dummy credentials provider

Modify gateway-service.yml

      apiml:
        security:
          auth:
            #provider: zosmf
            provider: dummy

For more information, see API Mediation Layer Security.

Run integration tests

To run integration tests, follow the instructions in Integration Tests.

Certificates

For more information about how the certificates between API ML services are set up for localhost, see TLS Certificates for localhost.

Contributor guidelines

To add new functionality, follow the guidelines in Contributing.

Local configuration of services

To set local environment properties for testing on your local machine including HTTPS setup, follow the guidelines in Local Configuration.

Review IDE setup to see how to configure popular IDEs for API ML development.

Onboarding Services

For guidelines to onboard services, see Zowe Docs#Onboarding Overview.

More Information

To learn about:	Refer to:
Core Service - API Catalog	Zowe Docs
Core Service - API Catalog UI	README
Core Service - Discovery Service	Zowe Docs
Core Service - Gateway Service	Zowe Docs
APIML SDK - Java Enabler	Zowe Docs
APIML SDK - Micronaut Enabler	Zowe Docs
APIML SDK - Node.js Enabler	Zowe Docs
APIML SDK - Spring Enabler	Zowe Docs
APIML SDK - ZAAS Client	Zowe Docs
Sample Service - Spring Enabler	README
Sample Service - Micronaut Enabler	README
Sample Service - NodeJS Enabler	README

Contact Us

Get in touch using Zowe Communication Channels. You can find us in the #zowe-api channel on Slack.