Parse "message" field on Syslog

Hi @stephenb, thanks for your reply!

Here you are.

@timestamp
Feb 28, 2021 @ 13:00:09.681

@version
1

_id
K0Ze6XcBV6EJI8QRVqc8

_index
logstash-2021.02.28-000001

_score

_type
_doc

host
gateway

message
{"latencies":{"request":7,"kong":0,"proxy":7},"service":{"host":"api","created_at":1614459071,"connect_timeout":60000,"id":"da7fd962-317e-4757-a347-3f0da3886e6c","protocol":"http","name":"MyAPI","read_timeout":60000,"port":5000,"updated_at":1614459071,"ws_id":"6e2ab00c-1e33-448c-a1ca-180f5a0f57ba","retries":5,"write_timeout":60000},"request":{"querystring":{},"size":153,"uri":"/frase/29","url":"http://api.local:8000/frase/29","headers":{"host":"api.local:8000","accept-encoding":"gzip, deflate","user-agent":"python-requests/2.25.1","accept":"/","connection":"keep-alive"},"method":"GET"},"client_ip":"192.168.0.209","tries":[{"balancer_latency":0,"port":5000,"balancer_start":1614528009794,"ip":"172.27.0.7"}],"upstream_uri":"/frase/29","response":{"headers":{"via":"kong/2.3.2","content-type":"application/json","date":"Sun, 28 Feb 2021 16:00:09 GMT","server":"Werkzeug/1.0.1 Python/3.6.13","connection":"close","x-kong-proxy-latency":"0","x-kong-upstream-latency":"7","content-length":"248"},"status":200,"size":489},"route":{"created_at":1614459089,"ws_id":"6e2ab00c-1e33-448c-a1ca-180f5a0f57ba","id":"e6d9b7ae-a9f2-40c0-b1bf-a7f1aa14f3d9","path_handling":"v0","name":"main","request_buffering":true,"service":{"id":"da7fd962-317e-4757-a347-3f0da3886e6c"},"preserve_host":false,"regex_priority":0,"response_buffering":true,"updated_at":1614459089,"paths":["/"],"https_redirect_status_code":426,"protocols":["http","https"],"strip_path":true},"started_at":1614528009794}

port
59366

tags
_grokparsefailure

type
syslog

An going to read the link!