public static async Task <IActionResult> PostOrchestrationFunction(
// Using /a/p/i route prefix, to let Functions Host distinguish api methods from statics
[HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "a/p/i/orchestrations('{instanceId}')/{action?}")] HttpRequest req,
string instanceId,
string action,
[DurableClient(TaskHub = "%DFM_HUB_NAME%")] IDurableClient durableClient,
ILogger log)
{
// Checking that the call is authenticated properly
try
{
await Auth.ValidateIdentityAsync(req.HttpContext.User, req.Headers);
}
catch (Exception ex)
{
log.LogError(ex, "Failed to authenticate request");
return(new UnauthorizedResult());
}
string bodyString = await req.ReadAsStringAsync();
switch (action)
{
case "purge":
await durableClient.PurgeInstanceHistoryAsync(instanceId);
break;
case "rewind":
await durableClient.RewindAsync(instanceId, bodyString);
break;
case "terminate":
await durableClient.TerminateAsync(instanceId, bodyString);
break;
case "raise-event":
dynamic bodyObject = JObject.Parse(bodyString);
string eventName = bodyObject.name;
JObject eventData = bodyObject.data;
await durableClient.RaiseEventAsync(instanceId, eventName, eventData);
break;
case "set-custom-status":
string connectionString = Environment.GetEnvironmentVariable(EnvVariableNames.AzureWebJobsStorage);
string hubName = Environment.GetEnvironmentVariable(EnvVariableNames.DFM_HUB_NAME);
// Updating the table directly, as there is no other known way
var tableClient = CloudStorageAccount.Parse(connectionString).CreateCloudTableClient();
var table = tableClient.GetTableReference($"{hubName}Instances");
var orcEntity = (await table.ExecuteAsync(TableOperation.Retrieve(instanceId, string.Empty))).Result as DynamicTableEntity;
if (string.IsNullOrEmpty(bodyString))
{
orcEntity.Properties.Remove("CustomStatus");
}
else
{
// Ensuring that it is at least a valid JSON
string customStatus = JObject.Parse(bodyString).ToString();
orcEntity.Properties["CustomStatus"] = new EntityProperty(customStatus);
}
await table.ExecuteAsync(TableOperation.Replace(orcEntity));
break;
case "restart":
bool restartWithNewInstanceId = ((dynamic)JObject.Parse(bodyString)).restartWithNewInstanceId;
await durableClient.RestartAsync(instanceId, restartWithNewInstanceId);
break;
default:
return(new NotFoundResult());
}
return(new OkResult());
}
public static async Task <IActionResult> DfmPostOrchestrationFunction(
[HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = Globals.ApiRoutePrefix + "/orchestrations('{instanceId}')/{action?}")] HttpRequest req,
string instanceId,
string action,
[DurableClient(TaskHub = Globals.TaskHubRouteParamName)] IDurableClient durableClient,
ILogger log)
{
// Checking that the call is authenticated properly
try
{
await Auth.ValidateIdentityAsync(req.HttpContext.User, req.Headers, durableClient.TaskHubName);
}
catch (Exception ex)
{
log.LogError(ex, "Failed to authenticate request");
return(new UnauthorizedResult());
}
// Checking that we're not in ReadOnly mode
if (DfmEndpoint.Settings.Mode == DfmMode.ReadOnly)
{
log.LogError("Endpoint is in ReadOnly mode");
return(new StatusCodeResult(403));
}
string bodyString = await req.ReadAsStringAsync();
switch (action)
{
case "purge":
await durableClient.PurgeInstanceHistoryAsync(instanceId);
break;
case "rewind":
await durableClient.RewindAsync(instanceId, bodyString);
break;
case "terminate":
await durableClient.TerminateAsync(instanceId, bodyString);
break;
case "raise-event":
dynamic bodyObject = JObject.Parse(bodyString);
string eventName = bodyObject.name;
JObject eventData = bodyObject.data;
var match = ExpandedOrchestrationStatus.EntityIdRegex.Match(instanceId);
// if this looks like an Entity
if (match.Success)
{
// then sending signal
var entityId = new EntityId(match.Groups[1].Value, match.Groups[2].Value);
await durableClient.SignalEntityAsync(entityId, eventName, eventData);
}
else
{
// otherwise raising event
await durableClient.RaiseEventAsync(instanceId, eventName, eventData);
}
break;
case "set-custom-status":
// Updating the table directly, as there is no other known way
var table = TableClient.GetTableClient().GetTableReference($"{durableClient.TaskHubName}Instances");
var orcEntity = (await table.ExecuteAsync(TableOperation.Retrieve(instanceId, string.Empty))).Result as DynamicTableEntity;
if (string.IsNullOrEmpty(bodyString))
{
orcEntity.Properties.Remove("CustomStatus");
}
else
{
// Ensuring that it is at least a valid JSON
string customStatus = JObject.Parse(bodyString).ToString();
orcEntity.Properties["CustomStatus"] = new EntityProperty(customStatus);
}
await table.ExecuteAsync(TableOperation.Replace(orcEntity));
break;
case "restart":
bool restartWithNewInstanceId = ((dynamic)JObject.Parse(bodyString)).restartWithNewInstanceId;
await durableClient.RestartAsync(instanceId, restartWithNewInstanceId);
break;
default:
return(new NotFoundResult());
}
return(new OkResult());
}
