[AVRO-2411] RecordSchema with logicalType field is not JSON serializable

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 1.9.0
• Component/s: python
• Assignee: Michael A. Smith
• Reporter: Jonathan
• Created: 29/May/19 14:43
• Updated: 17/Nov/19 02:56
• Resolved: 17/Nov/19 02:56

Description

After updating to 1.9.0, RecordSchemas that contain a field with a logicalType mapping can no longer be passed into json.dumps() as it throws the following error:

 

Object of type mappingproxy is not JSON serializable

Example schema:

{
  "namespace": "Sherlock",
  "type": "record",
  "name": "Action",
  "fields": [
    {
      "name": "action_id",
      "type": "string",
      "doc": "Key for the Action"
    },
    {
      "name": "actionType_id",
      "type": "int",
      "doc": "Action Type key"
    },
    {
      "name": "timestamp",
      "type": {
        "type": "long",
        "logicalType": "timestamp-millis"
      },
      "doc": "Event time of validation request or modified_dt of save (UTC)"
    }
  ]
}