public async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)]
HttpRequest req,
ILogger log,
ExecutionContext context)
{
log.LogInformation("C# HTTP trigger function processed a request.");
#region Process parameters
var fileName = req.Query["fileName"].ToString();
var contentType = req.Query["contentType"].ToString();
if (String.IsNullOrEmpty(fileName))
{
log.LogInformation("Mandatory parameter omitted.");
return(new BadRequestResult());
}
log.LogInformation($"Downloading file {fileName}");
if (String.IsNullOrEmpty(contentType))
{
contentType = "application/binary";
}
#endregion
#region Load configuration
var configBuilder = new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
var config = new ConnectorConfig(configBuilder);
#endregion
#region Download
var outputStream = await _azurestorage.DownloadAsync(config, fileName);
return(new FileContentResult(outputStream.ToArray(), contentType));
#endregion
}