'azure data factory web activity properties

I want to use a web activity to access my storage account and I want to used System Managed Idenity to authenticate but I don't know what to write in the Resource field.

Am I supposed to put the resource the data factory trying to access to, the storage, or the resource who is accessing, the data factory?

azure authentication azure-data-factory azure-managed-identity azure-authentication

Solution 1:^[1]

In your storage account,

Add role assignment with a role as Storage Blob Data Contributor.
Assign access to Managed identity
Select Member and add your data factory as a member.

In Azure data factory web activity:

Provide the URL of your blob as below.

ex: https://storageaccountname.blob.core.windows.net/containername/filename
Method: GET
Add headers

x-ms-version: 2017-11-09

xs-ms-blob-type: BlockBlob
Authentication: System Assigned Managed Identity
Resource: https://storage.azure.com/

Output:

Reference: https://www.youtube.com/watch?v=ZrMpZoh4UcY

Sources

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Source: Stack Overflow

Solution	Source
Solution 1	NiharikaMoola-MT