Pipeline cannot start with http_poller

Elastic Stack Logstash
5

Can reproduce :confused:

My error looks slightly different, though:

The given configuration is invalid. Reason: undefined method `get' for {"url"=>"..."}:hash:
Did you mean?  gem

With this configuration:

input {
    http_poller {
        urls => {
            localhost => {
                url => "..."
            }
        }
        codec => "json_lines"
        schedule => { every => "60s" }
        metadata_target => "[@metadata][http_poller]"
    }
}