ADLS Gen2 Power Query custom connector

Thanks for instant reply rubayatyasmin. There is a small progress I would say 🙂 However, when used code from Your example I got this error message in Power BI: 

"We cannot convert the value "?sv=2021-12-02&st=20..." to type Record."
(the value mentioned is my SAS key I guess)

When I checked in function refference, AzureStorage.DataLake() does not accept SAS as an argument. Possible optional arguments are: BlockSize, RequestSize, ConcurrentRequests and HierarchicalNavigation. Not sure where I can pass SAS than...

Also, when connecting from Power BI using the given method, it asks me to provide account key. Any ideas why?

Here is my current data connector logic:

[Version = "1.0.0"]
section BDL_Powerbi_Connector;

[DataSource.Kind="BDL_Powerbi_Connector", Publish="BDL_Powerbi_Connector.Publish"]
shared BDL_Powerbi_Connector.Contents = (accountName as text, sasToken as text) as table =>
    let
        accountName = accountName,
        sasToken = sasToken,
        dataLake = AzureStorage.DataLake(accountName, sasToken),
        contents = dataLake{[#"Folder Path"="dataproducts/",#"File Name"="test.txt"]}[Content]
    in
        contents;

// Data Source Kind description
BDL_Powerbi_Connector = [
    Authentication = [
        Key = []
    ]
];