The codec used for compressing your logs. Valid values are zstd, snappy, and gzip. Specifying both compression_codec and gzip_level in the same API request will result in an error.
The version of the custom logging format used for the configured endpoint. The logging call gets placed by default in vcl_log if format_version is set to 2 and in vcl_deliver if format_version is set to 1.
How the message should be formatted.
Where in the generated VCL the logging call should be placed. If not set, endpoints with format_version of 2 are placed in vcl_log and those with format_version of 1 are placed in vcl_deliver.