service-search-api

This is a specification for the service-search-api API.

• specification/ This Open API Specification describes the endpoints, methods and messages exchanged by the API. Use it to generate interactive documentation; the contract between the API and its consumers.
• sandbox/ This NodeJS application implements a mock implementation of the service. Use it as a back-end service to the interactive documentation to illustrate interactions and concepts. It is not intended to provide an exhaustive/faithful environment suitable for full development and testing.
• scripts/ Utilities helpful to developers of this specification.
• proxies/ Live (connecting to another service) and sandbox (using the sandbox container) Apigee API Proxy definitions.

Consumers of the API will find developer documentation on the NHS Digital Developer Hub.

Contributing

Contributions to this project are welcome from anyone, providing that they conform to the guidelines for contribution and the community code of conduct.

Licensing

This code is dual licensed under the MIT license and the OGL (Open Government License). Any new work added to this repository must conform to the conditions of these licenses. In particular this means that this project may not depend on GPL-licensed or AGPL-licensed libraries, as these would violate the terms of those libraries' licenses.

The contents of this repository are protected by Crown Copyright (C).

Development

Requirements

• make
• nodejs + npm/yarn
• poetry
• Java 8+

For step by step instructions on making these installations, refer to scripts/install_prerequisites.txt. These installations should only have to be done once.

Install

$ make install

Updating hooks

You can install some pre-commit hooks to ensure you can't commit invalid spec changes by accident. These are also run in CI, but it's useful to run them locally too.

$ make install-hooks

Environment Variables

Various scripts and commands rely on environment variables being set. These are documented with the commands.

💡 Consider using direnv to manage your environment variables during development and maintaining your own .envrc file - the values of these variables will be specific to you and/or sensitive.

Make commands

There are make commands that alias some of this functionality:

• lint -- Lints the spec and code
• publish -- Outputs the specification as a single file into the build/ directory
• serve -- Serves a preview of the specification in human-readable format

Testing

Currently this repository only has smoketests.

make smoketest

These require the APIGEE get_token tool and a correctly configured environment:

SSO_LOGIN_URL=https://login.apigee.com
APIGEE_ENVIRONMENT="internal-dev"
SERVICE_BASE_PATH="service-search-api"
APIGEE_API_TOKEN="$(get_token)"
SOURCE_COMMIT_ID="7aad0db8d58e2f67eeaf7b2ebc930fceb18b991a"

VS Code Plugins

• openapi-lint resolves links and validates entire spec with the 'OpenAPI Resolve and Validate' command
• OpenAPI (Swagger) Editor provides sidebar navigation

Emacs Plugins

• openapi-yaml-mode provides syntax highlighting, completion, and path help

Speccy

OpenAPI Generator OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec OpenAPI Generator does the lifting for the following npm scripts:

• lint -- Lints the definition
• publish -- Outputs the specification as a single file into the dist/ directory

ReDocly does the lifting for the serve npm script.

• serve -- Uses redocly command preview-docs to serve a preview of the specification in human-readable format

(Workflow detailed in a post on the developerjack blog.)

💡 The publish command is useful when uploading to Apigee which requires the spec as a single file.

Caveats

Swagger UI

Swagger UI unfortunately doesn't correctly render $refs in examples, so use speccy serve instead.

Apigee Portal

The Apigee portal will not automatically pull examples from schemas, you must specify them manually.