@ovotech/schema-registry-api
v1.1.1
Published
A simple typescript node-fetch wrapper on the confluent schema-registry api
Downloads
17,745
Maintainers
Keywords
Readme
Schema Registry API
A simple typescript node-fetch wrapper on the confluent schema-registry api.
This allows calling the api in a promise-based type-safe manner.
Using
yarn add @ovotech/schema-registry-api
import { Schema } from 'avsc';
const schema: Schema = {
type: 'record',
name: 'TestSchema',
fields: [{ name: 'accountId', type: 'string' }],
};
const subjects = await getSubjects(schemaRegistryUrl);
const newVersion = await addSubjectVersion(schemaRegistryUrl, 'clients', schema);
const foundSchema = await getSchema(schemaRegistryUrl, newVersion.id);
The api rest endpoint are directly translated into functions calling node-fetch:
| Function | Rest Docs |
| --------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| getSchema(baseUrl: string, id: number)
| GET /schemas/ids/:id
|
| getSubjects(baseUrl: string)
| GET /subjects
|
| getSubjectVersions(baseUrl: string, subject: string)
| GET /subjects/:subject/versions
|
| deleteSubject(baseUrl: string, subject: string)
| DELETE /subjects/:subject
|
| getSubjectVersionSchema(baseUrl: string, subject: string, version: number)
| GET /subjects/:subject/versions/:version/schema
|
| addSubjectVersion(baseUrl: string, subject: string, schema: Schema)
| POST /subjects/:subject/versions
|
| checkSubjectRegistered(baseUrl: string, subject: string, schema: Schema)
| POST /subjects/:subject
|
| deleteSubjectVersion(baseUrl: string, subject: string, version: number)
| DELETE /subjects/:subject/versions/:version
|
| checkCompatibility( baseUrl: string, subject: string, version: number | 'latest', schema: Schema)
| POST /compatibility/subjects/:subject/versions/:version
|
But there are also to slightly higher level functions:
idToSchema(baseUrl: string, id: number)
- return a schema as a parsed Schema
object from a schema id.
schemaToId(baseUrl: string, subject: string, schema: Schema)
- return the id of a schema object. This will check for an existence of a schema within the given subject, and create a schema version if one was not found.
Running the tests
The tests require a running schema registry service, and we're using docker compose to start it, alongside kafka and zookeeper, required by the service.
So in the project's parent directory run:
docker-compose up
Then you can run the tests with:
yarn test
Coding style (linting, etc) tests
Style is maintained with prettier and tslint
yarn lint
Deployment
Deployment is preferment by lerna automatically on merge / push to master, but you'll need to bump the package version numbers yourself. Only updated packages with newer versions will be pushed to the npm registry.
Contributing
Have a bug? File an issue with a simple example that reproduces this so we can take a look & confirm.
Want to make a change? Submit a PR, explain why it's useful, and make sure you've updated the docs (this file) and the tests (see test folder).
License
This project is licensed under Apache 2 - see the LICENSE file for details