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(Tcl) Set Container Metadata

Azure Storage Blob Service REST API: Sample code to set the user-defined metadata of a container.

Chilkat Tcl Extension Downloads

Chilkat Tcl Extension Downloads

load ./chilkat.dll

#  Azure Blob Service Example: Set Container User-Defined Metadata
#  See also: https://msdn.microsoft.com/en-us/library/azure/dd179362.aspx

#  This example requires the Chilkat API to have been previously unlocked.
#  See Global Unlock Sample for sample code.

set rest [new_CkRest]

#  Connect to the Azure Storage Blob Service
set bTls 1
set port 443
set bAutoReconnect 1
#  In this example, the storage account name is "chilkat".
set success [CkRest_Connect $rest "chilkat.blob.core.windows.net" $port $bTls $bAutoReconnect]
if {[expr $success != 1]} then {
    puts [CkRest_lastErrorText $rest]
    delete_CkRest $rest
    exit
}

#  Provide Azure Cloud credentials for the REST call.
set azAuth [new_CkAuthAzureStorage]

CkAuthAzureStorage_put_AccessKey $azAuth "AZURE_ACCESS_KEY"
#  The account name used here should match the 1st part of the domain passed in the call to Connect (above).
CkAuthAzureStorage_put_Account $azAuth "chilkat"
CkAuthAzureStorage_put_Scheme $azAuth "SharedKey"
CkAuthAzureStorage_put_Service $azAuth "Blob"
#  This causes the "x-ms-version: 2015-02-21" header to be automatically added.
CkAuthAzureStorage_put_XMsVersion $azAuth "2015-02-21"
set success [CkRest_SetAuthAzureStorage $rest $azAuth]

#  Note: The application does not need to explicitly set the following
#  headers: x-ms-date, Authorization.  These headers
#  are automatically set by Chilkat.

#  Add each name-value pair of metadata to associate with the container.
#  To remove all metadata from the container, simply don't add any x-ms-meta- headers.
set success [CkRest_AddHeader $rest "x-ms-meta-Category" "Images"]
set success [CkRest_AddHeader $rest "x-ms-meta-Resolution" "High"]

#  The expected success response is a 200 response status code with no response body.
#  In this example, we are setting the metadata of the container named "mycontainer".
set responseStr [CkRest_fullRequestNoBody $rest "PUT" "/mycontainer?restype=container&comp=metadata"]
if {[expr [CkRest_get_LastMethodSuccess $rest] != 1]} then {
    puts [CkRest_lastErrorText $rest]
    delete_CkRest $rest
    delete_CkAuthAzureStorage $azAuth
    exit
}

#  When successful, the Azure Storage service will respond with a 200 response status code,
#  with no response body.

if {[expr [CkRest_get_ResponseStatusCode $rest] != 200]} then {
    #  Examine the request/response to see what happened.
    puts "response status code = [CkRest_get_ResponseStatusCode $rest]"
    puts "response status text = [CkRest_responseStatusText $rest]"
    puts "response header: [CkRest_responseHeader $rest]"
    puts "response body (if any): $responseStr"
    puts "---"
    puts "LastRequestStartLine: [CkRest_lastRequestStartLine $rest]"
    puts "LastRequestHeader: [CkRest_lastRequestHeader $rest]"
    delete_CkRest $rest
    delete_CkAuthAzureStorage $azAuth
    exit
}

puts "Success."

delete_CkRest $rest
delete_CkAuthAzureStorage $azAuth

 

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