apache/rocketmq-schema-registry

One subject corresponds to only one schema, but there is not any checks when schema registering.

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#82 opened on Apr 22, 2023

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good first issue

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Description

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You can change the schemaName and register a schema to the same topic by invoke the method schemaRegistryClient.registerSchema.

I think the request must be rejected, when there is a schema bind to the topic(subject). To protect the semantics one subject corresponds to only one schema.

Contributor guide

Research direction
Identify the schema registration route in the code. Add a check to see if a schema already exists for the given subject. If it does, reject the request with an appropriate error.
Tech stack
java
Domain
backendapi
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Java
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75