When using HTTP, GCS decompresses gzip-encoded objects by default:
https://cloud.google.com/storage/docs/transcoding
``` Setting this option to `gzip` disables automatic decompression. This can be useful for applications wanting to operate with the compressed data. Setting this option to `identity`, or not setting this option, returns decompressed data.
<aside class="note"><b>Note:</b>
Note that decompressive transcoding only apply to objects that are compressed with `gzip` and have their `content_encoding()` attribute set accordingly. At the time of this writing GCS does not decompress objects stored with other compression algorithms, nor does it detect the object compression based on the object name or its contents.
</aside>
###### See Also
[`AcceptEncodingGzip()`](xref:namespacegoogle_1_1cloud_1_1storage_1abb76cc18ed021b748ead4a4845b9b81e) is a helper function to disable decompressive encoding.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-04-22 UTC."],[[["The content provides a list of available versions for the `AcceptEncoding` structure in the Google Cloud Storage C++ client library, ranging from version 2.11.0 to the latest release candidate, 2.37.0-rc."],["The `AcceptEncoding` structure is related to handling HTTP content encoding, with a focus on managing how GCS decompresses gzip-encoded objects."],["By default, GCS decompresses gzip-encoded objects when using HTTP, but this automatic decompression can be disabled by setting the option to `gzip`, which is useful for applications working directly with compressed data."],["Decompressive transcoding in GCS only applies to objects compressed with `gzip` and have their `content_encoding()` attribute set correctly, not other algorithms."],["`AcceptEncodingGzip()` is a helper function which can be used to disable decompressive encoding."]]],[]]
