Add time interval in between each document's timestamp

[Felipe_Fuller]

Hi Community! I hope you're doing great

I'm struggling to give a 5 seconds window/interval of time between each document inserted to elasticsearch in the timestamp field.

Actually, I have this pipeline:

input {
  http_poller {
    urls => {
      url => "http://localhost:5000/post/1"
    }
    request_timeout => 60
    schedule => { every => "5m"}
    codec => "json"
    metadata_target => "http_poller_metadata"
  }
}
output {
	elasticsearch {
     	index => "weather"
     	hosts => [ "https://elasticsearch:9200" ]
     	user => "${ELASTIC_USERNAME}"
     	password => "${ELASTIC_PASSWORD}"
     	ssl => true
     	ssl_certificate_verification => true
     	cacert => '/certs/ca.crt'
     	codec => json_lines
	}
  stdout {}
}

Receiving into elasticsearch, documents such as:

{
    "is_successful": false,
    "@timestamp": "2021-04-20T22:42:08.276Z",
    "ip_address": "0.0.0.1",
}, {
    "is_successful": false,
    "@timestamp": "2021-04-20T22:42:08.276Z",
    "ip_address": "0.0.0.2",
}, {
    "is_successful": true,
    "@timestamp": "2021-04-20T22:42:08.276Z",
    "ip_address": "0.0.0.3",
}

So I would like to have 5 seconds in between each @timestamp. Such as:

{
    "is_successful": false,
    "@timestamp": "2021-04-20T22:42:08.276Z",
    "ip_address": "0.0.0.1",
}, {
    "is_successful": false,
    "@timestamp": "2021-04-20T22:42:13.276Z",
    "ip_address": "0.0.0.2",
}, {
    "is_successful": true,
    "@timestamp": "2021-04-20T22:42:18.276Z",
    "ip_address": "0.0.0.3",
}

How could I achieve this? any tip to solve it?

Thank you in advance!