How to connect apache kafka to eclipse ditto?

I'm trying to connect apache kafka 2.x to eclipse ditto in locally with default configurations.

I'm following this https://www.eclipse.org/ditto/connectivity-protocol-bindings-kafka2.html, so I tried to create a new connection with a POST request, as follows:

curl -X POST -i -u devops:foobar  -H 'Content-Type: application/json' -d '{
   "targetActorSelection":"/system/sharding/connection",
   "headers":{
      "aggregate":false
   },
   "piggybackCommand":{
      "type":"connectivity.commands:createConnection",
      "connection":{
         "id":"kafka123",
         "connectionType":"kafka",
         "connectionStatus":"open",
         "failoverEnabled":true,
         "uri":"tcp://localhost:9092",
         "specificConfig":{
            "bootstrapServers":"localhost:9092"
         },
         "sources":[
            {
               "addresses":["topic01"],
               "consumerCount":1,
               "qos":0,
               "authorizationContext":["nginx:ditto"],
               "enforcement":{
                  "input":"{{ header:device_id }}",
                  "filters":["{{ entity:id }}"]
               },
               "headerMapping":{
                  "topic01":"{{ header:topic01 }}",
                  "the-key":"{{ header:kafka.key }}"
               },
               "payloadMapping":["Ditto"],
               "replyTarget":{
                  "enabled":true,
                  "address":"topic01",
                  "headerMapping":{
                     
                  },
                  "expectedResponseTypes":[
                     "response",
                     "error",
                     "nack"
                  ]
               },
               "acknowledgementRequests":{
                  "includes":[]
               },
               "declaredAcks":[]
            }
         ]
      }
   }
}' 'http://localhost:8080/devops/piggyback/connectivity?timeout=10'

This is the result:

HTTP/1.1 408 Request Timeout
Server: nginx/1.21.6
Date: Wed, 18 May 2022 14:11:33 GMT
Content-Type: application/json
Content-Length: 4
Connection: keep-alive
correlation-id: 16231ebe-3cd1-4ec1-9f42-ad58b9b82d14
timeout: 10
response-required: false
Access-Control-Allow-Methods: GET, POST, PUT, PATCH, DELETE, OPTIONS
Access-Control-Allow-Credentials: true
Access-Control-Expose-Headers: *

null%        

I can't understand what I'm doing wrong. how can i solve?

I solved: Checking in the ditto-connectivity logs (on docker), I found an error regarding a java library. To solve the problem I followed the installation of ditto again (https://github.com/eclipse/ditto#getting-started).

After that, the command written in my question worked and I got a 200 response.