Configure Azure SAS Authentication for REST

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Demonstrates Rest.SetAuthAzureSas, which associates an AuthAzureSAS provider so requests are authorized with an Azure Shared Access Signature token.

Background. A SAS token grants time-limited, permission-scoped access to Azure Storage resources without exposing the account key on the wire. Use SAS authorization when a query-token approach is preferred over Shared Key headers.

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    success := false

    rest := chilkat.NewRest()
    bTls := true
    bAutoReconnect := true
    success = rest.Connect("example.com",443,bTls,bAutoReconnect)
    if success == false {
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        return
    }

    //  Configure Azure Shared Access Signature (SAS) authentication.  Provide the account access key
    //  and the SAS token query parameters; Chilkat adds the SAS token to each request.
    azSas := chilkat.NewAuthAzureSAS()
    //  Normally you would not hard-code secrets in source.  You should instead obtain them from an
    //  interactive prompt, environment variable, or a secrets vault.
    azSas.SetAccessKey("BASE64_ACCOUNT_ACCESS_KEY")

    //  Associate the provider with the REST object.
    success = rest.SetAuthAzureSas(azSas)
    if success == false {
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        azSas.DisposeAuthAzureSAS()
        return
    }

    responseText := rest.FullRequestNoBody("GET","/mycontainer/myblob.txt")
    if rest.LastMethodSuccess() == false {
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        azSas.DisposeAuthAzureSAS()
        return
    }

    fmt.Println(*responseText)

    rest.DisposeRest()
    azSas.DisposeAuthAzureSAS()