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optimise brotli and gzip compression speed #2938

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optimise brotli and gzip compression speed #2938

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9751d38
optimise brotli and gzip compression speed
rakeshkky Sep 25, 2019
891b875
no-op refactor; move compression params inside function
rakeshkky Sep 26, 2019
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9 changes: 7 additions & 2 deletions server/src-lib/Hasura/Server/Compression.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -31,11 +31,16 @@ compressResponse
compressResponse reqHeaders unCompressedResp =
let compressionTypeM = getRequestedCompression reqHeaders
appendCompressionType (res, headerM) = (res, headerM, compressionTypeM)
brotliCompressionParams =
BR.defaultCompressParams{BR.compressLevel = BR.CompressionLevel4}
gzipCompressionParams =
GZ.defaultCompressParams{GZ.compressLevel = GZ.compressionLevel 1}
in appendCompressionType $ case compressionTypeM of
Just CTBrotli -> (BR.compress unCompressedResp, Just brHeader)
Just CTGZip -> (GZ.compress unCompressedResp, Just gzipHeader)
Just CTBrotli -> (BR.compressWith brotliCompressionParams unCompressedResp, Just brHeader)
Just CTGZip -> (GZ.compressWith gzipCompressionParams unCompressedResp, Just gzipHeader)
Nothing -> (unCompressedResp, Nothing)


getRequestedCompression :: NH.RequestHeaders -> Maybe CompressionType
getRequestedCompression reqHeaders
| "br" `elem` acceptEncodingVals = Just CTBrotli
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