oh if you’re into json, you can also use nginx logging in json format https://community.centminmod.com/threads/how-to-configure-nginx-for-json-based-access-logging.19641/ 
log_format cf_json escape=json '{'
'"msec": "$msec", ' # request unixtime in seconds with a milliseconds resolution
'"connection": "$connection", ' # connection serial number
'"connection_requests": "$connection_requests", ' # number of requests made in connection
'"pid": "$pid", ' # process pid
'"request_id": "$request_id", ' # the unique request id
'"request_length": "$request_length", ' # request length (including headers and body)
'"remote_addr": "$remote_addr", ' # client IP
'"remote_user": "$remote_user", ' # client HTTP username
'"remote_port": "$remote_port", ' # client port
'"time_local": "$time_local", '
'"time_iso8601": "$time_iso8601", ' # local time in the ISO 8601 standard format
'"request": "$request", ' # full path no arguments if the request
'"request_uri": "$request_uri", ' # full path and arguments if the request
'"args": "$args", ' # args
'"status": "$status", ' # response status code
'"body_bytes_sent": "$body_bytes_sent", ' # the number of body bytes exclude headers sent to a client
'"bytes_sent": "$bytes_sent", ' # the number of bytes sent to a client
'"http_referer": "$http_referer", ' # HTTP referer
'"http_user_agent": "$http_user_agent", ' # user agent
'"http_x_forwarded_for": "$http_x_forwarded_for", ' # http_x_forwarded_for
'"http_host": "$http_host", ' # the request Host: header
'"server_name": "$server_name", ' # the name of the vhost serving the request
'"request_time": "$request_time", ' # request processing time in seconds with msec resolution
'"upstream": "$upstream_addr", ' # upstream backend server for proxied requests
'"upstream_connect_time": "$upstream_connect_time", ' # upstream handshake time incl. TLS
'"upstream_header_time": "$upstream_header_time", ' # time spent receiving upstream headers
'"upstream_response_time": "$upstream_response_time", ' # time spend receiving upstream body
'"upstream_response_length": "$upstream_response_length", ' # upstream response length
'"upstream_cache_status": "$upstream_cache_status", ' # cache HIT/MISS where applicable
'"ssl_protocol": "$ssl_protocol", ' # TLS protocol
'"ssl_cipher": "$ssl_cipher", ' # TLS cipher
'"scheme": "$scheme", ' # http or https
'"request_method": "$request_method", ' # request method
'"server_protocol": "$server_protocol", ' # request protocol, like HTTP/1.1 or HTTP/2.0
'"pipe": "$pipe", ' # “p” if request was pipelined, “.” otherwise
'"gzip_ratio": "$gzip_ratio", '
'"http_cf_ray": "$http_cf_ray", '
'"http_cf_request_id": "$http_cf_request_id", '
'"http_accept": "$http_accept", '
'"http_args": "$args"'
'}';
