SQL Server Google Cloud Storage: List Objects in a Bucket

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Retrieves a list of objects in the Google Cloud Storage bucket. The name of the bucket is specified in the URL's path. This example retrieves a listing of the objects in the "chilkat-test" bucket.

Documentation: https://cloud.google.com/storage/docs/json_api/v1/objects/list

CURL Command

curl -X GET https://www.googleapis.com/storage/v1/b/chilkat-bucket/o?project=MY_CLOUD_STORAGE_PROJECT \
    --header "Authorization: Bearer CLOUD_STORAGE_TOKEN"

SQL Server Example

CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @rest int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Rest', @rest OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int

    --  URL: https://www.googleapis.com/storage/v1/b/chilkat-bucket/o?project=MY_CLOUD_STORAGE_PROJECT
    DECLARE @bTls int
    SELECT @bTls = 1
    DECLARE @port int
    SELECT @port = 443
    DECLARE @bAutoReconnect int
    SELECT @bAutoReconnect = 1
    EXEC sp_OAMethod @rest, 'Connect', @success OUT, 'www.googleapis.com', @port, @bTls, @bAutoReconnect
    IF @success <> 1
      BEGIN

        EXEC sp_OAGetProperty @rest, 'ConnectFailReason', @iTmp0 OUT
        PRINT 'ConnectFailReason: ' + @iTmp0
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @rest
        RETURN
      END

    EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'Authorization', 'Bearer CLOUD_STORAGE_TOKEN'

    DECLARE @sbResponseBody int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.StringBuilder', @sbResponseBody OUT

    EXEC sp_OAMethod @rest, 'FullRequestNoBodySb', @success OUT, 'GET', '/storage/v1/b/chilkat-bucket/o?project=MY_CLOUD_STORAGE_PROJECT', @sbResponseBody
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @sbResponseBody
        RETURN
      END
    DECLARE @respStatusCode int
    EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @respStatusCode OUT
    IF @respStatusCode >= 400
      BEGIN

        PRINT 'Response Status Code = ' + @respStatusCode

        PRINT 'Response Header:'
        EXEC sp_OAGetProperty @rest, 'ResponseHeader', @sTmp0 OUT
        PRINT @sTmp0

        PRINT 'Response Body:'
        EXEC sp_OAMethod @sbResponseBody, 'GetAsString', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @sbResponseBody
        RETURN
      END

    DECLARE @jsonResponse int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.JsonObject', @jsonResponse OUT

    EXEC sp_OAMethod @jsonResponse, 'LoadSb', @success OUT, @sbResponseBody

    --  See the Online Tool for Generating JSON Parse Code
    DECLARE @i int

    DECLARE @count_i int

    DECLARE @kind nvarchar(4000)
    EXEC sp_OAMethod @jsonResponse, 'StringOf', @kind OUT, 'kind'
    SELECT @i = 0
    EXEC sp_OAMethod @jsonResponse, 'SizeOfArray', @count_i OUT, 'items'
    WHILE @i < @count_i
      BEGIN
        EXEC sp_OASetProperty @jsonResponse, 'I', @i
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @kind OUT, 'items[i].kind'
        DECLARE @id nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @id OUT, 'items[i].id'
        DECLARE @selfLink nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @selfLink OUT, 'items[i].selfLink'
        DECLARE @name nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @name OUT, 'items[i].name'
        DECLARE @bucket nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @bucket OUT, 'items[i].bucket'
        DECLARE @generation nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @generation OUT, 'items[i].generation'
        DECLARE @metageneration nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @metageneration OUT, 'items[i].metageneration'
        DECLARE @contentType nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @contentType OUT, 'items[i].contentType'
        DECLARE @timeCreated nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @timeCreated OUT, 'items[i].timeCreated'
        DECLARE @updated nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @updated OUT, 'items[i].updated'
        DECLARE @storageClass nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @storageClass OUT, 'items[i].storageClass'
        DECLARE @timeStorageClassUpdated nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @timeStorageClassUpdated OUT, 'items[i].timeStorageClassUpdated'
        DECLARE @size nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @size OUT, 'items[i].size'
        DECLARE @md5Hash nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @md5Hash OUT, 'items[i].md5Hash'
        DECLARE @mediaLink nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @mediaLink OUT, 'items[i].mediaLink'
        DECLARE @crc32c nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @crc32c OUT, 'items[i].crc32c'
        DECLARE @etag nvarchar(4000)
        EXEC sp_OAMethod @jsonResponse, 'StringOf', @etag OUT, 'items[i].etag'
        SELECT @i = @i + 1
      END

    EXEC @hr = sp_OADestroy @rest
    EXEC @hr = sp_OADestroy @sbResponseBody
    EXEC @hr = sp_OADestroy @jsonResponse


END
GO

Sample JSON Response Body

{
  "kind": "storage#objects",
  "items": [
    {
      "kind": "storage#object",
      "id": "chilkat-bucket/hedgehogs.jpg/1540253106638630",
      "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-bucket/o/hedgehogs.jpg",
      "name": "hedgehogs.jpg",
      "bucket": "chilkat-bucket",
      "generation": "1540253106638630",
      "metageneration": "1",
      "contentType": "image/jpeg",
      "timeCreated": "2018-10-23T00:05:06.638Z",
      "updated": "2018-10-23T00:05:06.638Z",
      "storageClass": "MULTI_REGIONAL",
      "timeStorageClassUpdated": "2018-10-23T00:05:06.638Z",
      "size": "48573",
      "md5Hash": "TE1U6fQlD6MOVGaQbwGinQ==",
      "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-bucket/o/hedgehogs.jpg?generation=1540253106638630&alt=media",
      "crc32c": "1B2d6g==",
      "etag": "CKaepPqhm94CEAE="
    },
    {
      "kind": "storage#object",
      "id": "chilkat-bucket/penguins.jpg/1540253106941673",
      "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-bucket/o/penguins.jpg",
      "name": "penguins.jpg",
      "bucket": "chilkat-bucket",
      "generation": "1540253106941673",
      "metageneration": "1",
      "contentType": "image/jpeg",
      "timeCreated": "2018-10-23T00:05:06.941Z",
      "updated": "2018-10-23T00:05:06.941Z",
      "storageClass": "MULTI_REGIONAL",
      "timeStorageClassUpdated": "2018-10-23T00:05:06.941Z",
      "size": "777835",
      "md5Hash": "nTd7EM53jEk4s8fixjoimg==",
      "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-bucket/o/penguins.jpg?generation=1540253106941673&alt=media",
      "crc32c": "ixxYVw==",
      "etag": "COndtvqhm94CEAE="
    },
    {
      "kind": "storage#object",
      "id": "chilkat-bucket/starfish.jpg/1540253106637454",
      "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-bucket/o/starfish.jpg",
      "name": "starfish.jpg",
      "bucket": "chilkat-bucket",
      "generation": "1540253106637454",
      "metageneration": "1",
      "contentType": "image/jpeg",
      "timeCreated": "2018-10-23T00:05:06.636Z",
      "updated": "2018-10-23T00:05:06.636Z",
      "storageClass": "MULTI_REGIONAL",
      "timeStorageClassUpdated": "2018-10-23T00:05:06.636Z",
      "size": "6229",
      "md5Hash": "LpxZ2/JmI2fcl9/dqF2gSA==",
      "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-bucket/o/starfish.jpg?generation=1540253106637454&alt=media",
      "crc32c": "9RjgwQ==",
      "etag": "CI6VpPqhm94CEAE="
    }
  ]
}