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 webpage provides a comprehensive list of versions for `google::cloud::storage::AcceptEncoding`, ranging from the latest release candidate (2.37.0-rc) down to version 2.11.0."],["`AcceptEncoding` is related to how Google Cloud Storage (GCS) handles the decompression of gzip-encoded objects during HTTP requests."],["GCS automatically decompresses gzip-encoded objects by default when using HTTP, and this default behavior can be altered."],["Setting `AcceptEncoding` to `gzip` prevents GCS from decompressing objects, which is useful for applications needing to handle compressed data directly, while setting it to `identity` or not setting it returns the data decompressed."],["Decompressive transcoding by GCS only works on objects that have been compressed with `gzip` and have the proper `content_encoding()` attribute set."]]],[]]
