tencent cloud

Prerequisites

1. The GZIP decompression feature is implemented via the Serverless Cloud Function (SCF) service. Before use, you need to go to App Integration > GZIP Decompression in the COS console to create a GZIP Decompression function. For detailed directions on how to create a function, see Using Console to Configure Auto GZIP File Decompression.
2. After creating the function, click Instructions on the right of the function to configure it. The configuration items are a JSON string, which will be as described in detail in this document.

• If your function needs SCF authentication, you need to call the Invoke API provided by SCF to run your cloud function, where the ClientContext parameter is passed in JSON format (see Sample Function Parameter Configuration for details).
• If you configure the function to be authentication free, you can directly send HTTP requests to the corresponding API gateway to call the function.

Sample Function Parameter Configuration

Note：

In actual practice, delete the comments in the code.

{
  "bucket": "examplebucket-1250000000",    // Source bucket storing the GZIP package
  "region": "ap-guangzhou",         // Region where the source bucket storing the GZIP package resides
  "key": "example.txt.gz",              //  GZIP package name
  "targetBucket": "examplebucket-1250000000",    // Destination bucket to store the decompressed objects
  "targetRegion": "ap-guangzhou",         // Region where the destination bucket resides
  "targetPrefix": "target/",              // Prefix of the directory to store the decompressed objects
}

The parameters are as described below:

Sample Function Response

{
   "code": 0,
   "message": "cos gunzip file success",
   "data": {
       "Bucket": "examplebucket-1250000000",
       "Region": "ap-guangzhou"
   }
}

Response parameters are as described below:

Use Cases

Use case 1: Decompressing a *.gz file

Parameter configuration

{
"bucket": "examplebucket-1250000000",
"region": "ap-guangzhou",
"key": "example.txt.gz",
"targetBucket": "examplebucket-1250000000",
"targetRegion": "ap-guangzhou",
"targetPrefix": "target/"
}

Location of decompressed objects

target/example.txt

Use case 2: Decompressing *.tar.gz and *.tgz files

Parameter configuration

{
 "bucket": "examplebucket-1250000000",
 "region": "ap-guangzhou",
 "key": "example.tar.gz",
 "targetBucket": "examplebucket-1250000000",
 "targetRegion": "ap-guangzhou",
 "targetPrefix": "target/"
}

Compressed package structure

example.tar.gz
  ├── example-subfile-1.txt
  ├── example-subfile-2.png
  └── example-subfile-3.mp4

Location of decompressed objects

target/example-subfile-1.txt
target/example-subfile-2.png
target/example-subfile-3.mp4