Collection metadata not returned by /collections or /collections/<name>

[jackwilsdon]

Description

The documentation for 26.0 indicates that metadata on a collection should be returned by GET /collections, however running the example in the documentation indicates this isn't the case.

Steps to reproduce

1. $ curl --silent --verbose -X POST -H 'X-Typesense-API-Key: typesense' --data '{       
     "name": "docs",
     "enable_nested_fields": true,
     "fields": [
       {
         "name": "title",
         "type": "string",
         "facet": true
       }
     ],
     "metadata": {
       "batch_job": 325,
       "indexed_from": "2023-04-20T00:00:00.000Z"
     }
   }' localhost:8108/collections
   

   *   Trying [::1]:8108...
   * Connected to localhost (::1) port 8108
   > POST /collections HTTP/1.1
   > Host: localhost:8108
   > User-Agent: curl/8.4.0
   > Accept: */*
   > X-Typesense-API-Key: typesense
   > Content-Length: 240
   > Content-Type: application/x-www-form-urlencoded
   > 
   < HTTP/1.1 201 Created
   < Connection: keep-alive
   < access-control-allow-origin: *
   < content-type: application/json; charset=utf-8
   < transfer-encoding: chunked
   < 
   * Connection #0 to host localhost left intact
   {"created_at":1714484757,"default_sorting_field":"","enable_nested_fields":true,"fields":[{"facet":true,"index":true,"infix":false,"locale":"","name":"title","optional":false,"sort":false,"stem":false,"type":"string"}],"name":"docs","num_documents":0,"symbols_to_index":[],"token_separators":[]}
   

   Formatted response:

   {
     "created_at": 1714484757,
     "default_sorting_field": "",
     "enable_nested_fields": true,
     "fields": [
       {
         "facet": true,
         "index": true,
         "infix": false,
         "locale": "",
         "name": "title",
         "optional": false,
         "sort": false,
         "stem": false,
         "type": "string"
       }
     ],
     "name": "docs",
     "num_documents": 0,
     "symbols_to_index": [],
     "token_separators": []
   }

2. $ curl --silent --verbose -H 'X-Typesense-API-Key: typesense' localhost:8108/collections
   

   *   Trying [::1]:8108...
   * Connected to localhost (::1) port 8108
   > GET /collections HTTP/1.1
   > Host: localhost:8108
   > User-Agent: curl/8.4.0
   > Accept: */*
   > X-Typesense-API-Key: typesense
   > 
   < HTTP/1.1 200 OK
   < Connection: keep-alive
   < access-control-allow-origin: *
   < content-type: application/json; charset=utf-8
   < transfer-encoding: chunked
   < 
   { [309 bytes data]
   * Connection #0 to host localhost left intact
   [{"created_at":1714484757,"default_sorting_field":"","enable_nested_fields":true,"fields":[{"facet":true,"index":true,"infix":false,"locale":"","name":"title","optional":false,"sort":false,"stem":false,"type":"string"}],"name":"docs","num_documents":0,"symbols_to_index":[],"token_separators":[]}]
   

   Formatted response:

   [
     {
       "created_at": 1714484757,
       "default_sorting_field": "",
       "enable_nested_fields": true,
       "fields": [
         {
           "facet": true,
           "index": true,
           "infix": false,
           "locale": "",
           "name": "title",
           "optional": false,
           "sort": false,
           "stem": false,
           "type": "string"
         }
       ],
       "name": "docs",
       "num_documents": 0,
       "symbols_to_index": [],
       "token_separators": []
     }
   ]
   

Expected Behavior

The collection's metadata should be returned in GET /collections (or GET /collections/<name>).

Actual Behavior

The collection's metadata is not returned.

Metadata

Typesense Version: 26.0

OS: Docker on macOS, typesense/typesense:26.0 image