GitHub user anthonyikeda added a comment to the discussion: [Bug] Pulsar Client
ignores producer schema
Attempted the same with a JSON Schema:
product.schema.json
```json
{
"$schema" : "https://json-schema.org/draft/2020-12/schema";,
"$id": "http://example.com/product.schema.json";,
"title" : "Product",
"description" : "A product in the catalog",
"type" : "object",
"properties":{
"product_id" : {
"description" : "A unique identifier",
"type" : "integer"
},
"product_name" : {
"description" : "name of the product",
"type" : "string"
},
"product_description" : {
"description" : "A description of the product",
"type" : "string"
}
},
"required": [ "product_id", "product_name"]
}
```
topic-schema-2.json
```json
{
"type" : "JSON",
"schema" : "{ \"$schema\" :
\"https://json-schema.org/draft/2020-12/schema\";, \"$id\":
\"http://example.com/product.schema.json\";, \"title\" : \"Product\",
\"description\" : \"A product in the catalog\", \"type\" : \"object\",
\"properties\":{\"product_id\" : {\"description\" : \"A unique identifier\",
\"type\" : \"integer\" },\"product_name\" : {\"description\" : \"name of the
product\", \"type\" : \"string\" }, \"product_description\" : { \"description\"
: \"A description of the product\", \"type\" : \"string\" } },\"required\": [
\"product_id\", \"product_name\"]}"
}
```
Upload schema:
```bash
$ bin/pulsar-admin topics create
persistent://my-tenant/my-namespace/basic-topic-4
$ bin/pulsar-admin schemas upload -f topic-schema-2.json
persistent://my-tenant/my-namespace/basic-topic-4
2023-04-05T14:33:42,660-0700 [AsyncHttpClient-7-1] WARN
org.apache.pulsar.client.admin.internal.BaseResource -
[http://localhost:8080/admin/v2/schemas/my-tenant/my-namespace/basic-topic-4/schema]
Failed to perform http post request: javax.ws.rs.ClientErrorException: HTTP
422 Invalid schema definition data for JSON schema
HTTP 422 Invalid schema definition data for JSON schema
Reason: HTTP 422 Invalid schema definition data for JSON schema
```
I think in this attempt it's about how to position a JSON schema vs an AVRO
schema.
Is JSON Schema meant to represent an AVRO schema definition written in JSON or
actual JSON Schema (https://json-schema.org) ?
GitHub link:
https://github.com/apache/pulsar/discussions/20586#discussioncomment-6187222
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