public static async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "post", Route = "buildenvelope/{envelopeType}/{scenario}")]
HttpRequest req, string envelopeType, string scenario, ILogger log)
{
// Get Request Details
RequestDetails requestDetails = new RequestDetails(req, LogId);
string logPrefix = $"{LogId}:{requestDetails.TrackingId}: ";
// Add the tracking ID to the Response Headers
if (!string.IsNullOrWhiteSpace(requestDetails.TrackingId))
{
req.HttpContext.Response.Headers[HeaderConstants.AimTrackingId] = requestDetails.TrackingId;
}
log.LogDebug($"{logPrefix}Called with parameters envelopeType: {envelopeType}, scenario: {scenario}, messageContentType: {requestDetails.RequestContentType}, messageContentEncoding: {requestDetails.RequestContentEncoding}, messageTransferEncoding: {requestDetails.RequestTransferEncoding}, headerTrackingId: {requestDetails.TrackingId}, clearCache: {requestDetails.ClearCache}, enableTrace: {requestDetails.EnableTrace}");
envelopeType = envelopeType.ToLower();
// Validate the request
IActionResult result = ValidateRequest(envelopeType, scenario, requestDetails, logPrefix, log);
if (result != null)
{
return(result);
}
log.LogDebug($"{logPrefix}Request parameters are valid");
JObject envelope;
// Switch by envelopeType
switch (envelopeType)
{
case EnvelopeTypeAck:
{
log.LogDebug($"{logPrefix}Building an ACK envelope");
envelope = EnvelopeBuilder.BuildAckEnvelope(requestDetails);
break;
}
case EnvelopeTypeNack:
{
log.LogDebug($"{logPrefix}Building a NACK envelope");
envelope = EnvelopeBuilder.BuildNackEnvelope(requestDetails);
break;
}
case EnvelopeTypeDocument:
{
try
{
log.LogDebug($"{logPrefix}Building a Content envelope");
envelope = await BuildDocumentEnvelopeAsync(scenario, requestDetails, logPrefix, log);
// Update the request TrackingId if need be
requestDetails.UpdateTrackingId(envelope?["header"]?["properties"]?["trackingId"]?.Value <string>());
}
catch (AzureResponseException arex)
{
// Exception occurred
AzureResponseHelper.SetCustomResponseHeaders(req, arex);
return(AzureResponseHelper.CreateFaultObjectResult("An AzureResponseException error occurred building a Document envelope", arex, logPrefix, log));
}
catch (Exception ex)
{
// Exception occurred
return(AzureResponseHelper.CreateFaultObjectResult(requestDetails, "An error occurred building a Document envelope", ex, logPrefix, log));
}
break;
}
default:
{
// Invalid EnvelopeType
return(AzureResponseHelper.CreateFaultObjectResult(requestDetails, $"Invalid envelopeType parameter supplied - must be one of {string.Join(", ", s_allowedEnvelopeTypes)}", logPrefix, log));
}
}
// Add TrackingId header
if (!string.IsNullOrEmpty(requestDetails.TrackingId) && req?.HttpContext?.Response?.Headers?.ContainsKey(HeaderConstants.AimTrackingId) == false)
{
req?.HttpContext?.Response?.Headers?.Add(HeaderConstants.AimTrackingId, requestDetails.TrackingId);
}
log.LogDebug($"{logPrefix}Finished building envelope - returning response");
return(new OkObjectResult(envelope));
}