Content NOT SUPPORTED: keyword "id", use "$id" for schema ID

[vicziani]

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Issue submitter TODO list

• [X] I've looked up my issue in FAQ
• [X] I've searched for an already existing issues here
• [X] I've tried running main-labeled docker image and the issue still persists there
• [X] I'm running a supported version of the application which is listed here

Describe the bug (actual behavior)

I'am using the Apicurio Schema Registry. After I create a JSON schema and try to send a message, I get the following error message:

Content NOT SUPPORTED: keyword "id", use "$id" for schema ID

JSON Schema:

{
  "$id": "https://training.com/EmployeeHasBeenCreatedEvent.schema.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "EmployeeHasBeenCreatedEvent",
  "type": "object",
  "properties": {
    "id": {
      "type": "integer",
      "format": "int64",
      "description": "The employee's id."
    },
    "name": {
      "type": "string",
      "minLength": 1,
      "description": "The employee's name."
    }
  }
}

Reading messages based on the schema works well.

Expected behavior

Send the message.

Your installation details

Same with v1.0.0 and 4de0d53.

  schema-registry:
    image: apicurio/apicurio-registry-mem:2.6.1.Final
    ports: 
      - "8081:8080"
  kafka-ui:
    #image: ghcr.io/kafbat/kafka-ui:v1.0.0
    image: ghcr.io/kafbat/kafka-ui:4de0d5330d0c615e70fd9693bba265e6536029e9
    depends_on:
      - kafka
      - schema-registry
    ports:
      - 8082:8080
    environment:
      - KAFKA_CLUSTERS_0_NAME=local
      - KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS=kafka:9093
      - KAFKA_CLUSTERS_0_SCHEMAREGISTRY=http://schema-registry:8080/apis/ccompat/v7
      - DYNAMIC_CONFIG_ENABLED='true'

Steps to reproduce

1. Create schema
2. Create topic
3. Send message

Screenshots

The JSON is generated by Kafka UI.

Logs

Nothing appears in the log.

Additional context

No response

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[Haarolean]

• Is it just one of the schemas or json schemas don't work in general?
• Are you using SR compatible API in apicurio?

[vicziani]

• For all schema.
• What does it mean SR compatible? I'am using the Confluent Schema Registry API (Version 7) (/apis/ccompat/v7). As you see the Docker Compose file above:

KAFKA_CLUSTERS_0_SCHEMAREGISTRY=http://schema-registry:8080/apis/ccompat/v7

As you can see on the screenshots, the Kafka UI can download the schema, using it when consuming messages, create sample JSON based on the schema. It only throws error while producing message.

[vicziani]

I tried with another schema draft(http://json-schema.org/draft-07/schema#).

Kafka UI can download the schema, using it when consuming messages, create sample JSON based on the schema.

But another error message while producing message: Content no schema with key or ref "http://json-schema.org/draft-07/schema#". Kafka UI supports only the draft https://json-schema.org/draft/2020-12/schema?!

[Haarolean]

@Nilumilak can you take a look, please? It looks like a frontend issue, the validator either can't parse schema references or something.

[kbzowski]

+1

[alesbukovsky]

I am facing the same issue as noted above with schema referencing http://json-schema.org, only in my case it's draft-04. The error message is the same.

[Haarolean]

Can someone verify if this works on latest main-tagged image? Should've been fixed within #900