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Cloud Object Storage
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    Terakhir diperbarui:2024-02-04 17:20:25
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      What should I do if error 403 is reported when I perform operations with a temporary key?

      Check whether the action and allowPrefix you entered when applying for the temporary key are correct.
      1. For example, if you call cos.putObject(), but the action does not contain name/cos:PutObject, then there is no putObject permission, resulting in the error 403.
      2. For example, if the key for the operation is 1.jpg, but the allowPrefix is entered as test/* (only allowing operations on the test/* path), then there is no operation permission for the corresponding path, resulting in the error 403.
      If both action and allowPrefix are correct, see Generating and Using Temporary Keys and 403 Error for COS Access. Field description: STS SDKs for different languages use different fields for action and allowPrefix, such as allowActions and allowPrefixes in the STS Java SDK. Be sure to check the examples in the STS SDK.

      What should I do if the Mini Program SDK reports the error "Request has expired (Status Code: 403; Error Code: AccessDenied)"?

      If the error is caused by the expiration of the signature, simply generate a new signature. If the error persists, check whether the local time of the server is the same as the standard local time.

      How do I configure and limit the allowlist if multiple domain names are requested in the mini program or the bucket name is unknown?

      When the SDK is instantiated, ForcePathStyle:true can be used to enable suffixed request, and then only the URL of the real request is needed, which is in the following format:
      https://cos-ap-beijing.myqcloud.com/<BucketName-APPID>/<Key>
      When a suffixed request is signed, the bucket name /<BucketName-APPID> will also be used in the signature calculation.

      How do I save an image in a Mini Program to my device?

      1. Get the image URL through cos.getObjectUrl.
      2. Call wx.downloadFile to download the image and get the temporary path.
      3. Click Save and call wx.saveImageToPhotosAlbum to save the image to the album.

      Can I upload files to COS by using the Mini Program SDK for QQ mini programs?

      COS currently supports only WeChat Mini Programs, and WeChat Mini Programs do not interconnect with QQ Mini Programs. Therefore, the Mini Program SDK cannot be used.

      What does the getAuthorization function do when Mini Programs use cos-wx-sdk-v5 to upload files to buckets?

      The backend uses the getAuthorization function in the Mini Program SDK to get a temporary key and sends it to the frontend for signature calculation. Then users can perform operations such as upload and deletion on the files according to the signature calculation result. We recommend that you use the temporary key mode to prevent disclosure of your key. For more information, see Mini Program SDK use case: Create a COS SDK instance.
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