You can add signature information to the query parameters of a URL. The URL contains the access key (AK), the validity period, the resource, the operation, the signature, and other information. Anyone with the URL can perform the corresponding operation within the validity period. This method is called pre-signing.

Pre-signed URL: You can access the TOS service by generating pre-signed URLs using the SDK.

Pre-signed POST Form: TOS supports browser-based POST object upload requests, making it convenient for you to upload content directly to TOS. You can use the SDK to generate pre-signed POST form parameters.

Last updated: 2026.08.10 10:27:39

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