# Method: upload.getCdnFileHashes

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Get SHA256 hashes for verifying downloaded CDN files

# Parameters:

Name Type Description Required
file_token bytes File Yes
offset int Offset from which to start getting hashes Yes

# Return type: Vector_of_FileHash

# Can bots use this method: YES

# MadelineProto Example (now async for huge speed and parallelism!):

if (!file_exists('madeline.php')) {
    copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
include 'madeline.php';

$MadelineProto = new \danog\MadelineProto\API('session.madeline');

$Vector_of_FileHash = $MadelineProto->upload->getCdnFileHashes(['file_token' => 'bytes', 'offset' => int, ]);

Or, if you’re into Lua:

Vector_of_FileHash = upload.getCdnFileHashes({file_token='bytes', offset=int, })

# Errors

Code Type Description
400 CDN_METHOD_INVALID You can’t call this method in a CDN DC
400 RSA_DECRYPT_FAILED Internal RSA decryption failed
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