# Fastly::LoggingGenericCommon ## Properties | Name | Type | Description | Notes | | ---- | ---- | ----------- | ----- | | **message_type** | **String** | How the message should be formatted. | [optional][default to 'classic'] | | **timestamp_format** | **String** | A timestamp format | [optional][readonly] | | **period** | **Integer** | How frequently log files are finalized so they can be available for reading (in seconds). | [optional][default to 3600] | | **gzip_level** | **Integer** | What level of gzip encoding to have when sending logs (default `0`, no compression). If an explicit non-zero value is set, then `compression_codec` will default to \"gzip.\" Specifying both `compression_codec` and `gzip_level` in the same API request will result in an error. | [optional][default to 0] | | **compression_codec** | **String** | The codec used for compression of your logs. Valid values are `zstd`, `snappy`, and `gzip`. If the specified codec is \"gzip\", `gzip_level` will default to 3. To specify a different level, leave `compression_codec` blank and explicitly set the level using `gzip_level`. Specifying both `compression_codec` and `gzip_level` in the same API request will result in an error. | [optional] | [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)