public async Task PostAsync(string encryptedChannelID)
{
// 0) Get request body data.
string bodyStr;
using (StreamReader reader
= new StreamReader(this.Request.Body, Encoding.UTF8, true, 1024, true))
{
bodyStr = await reader.ReadToEndAsync();
}
// 0) Decrypt the channelID.
var protector = _dataProtectionProvider.CreateProtector(_encryptionKey);
var channelID = protector.Unprotect(encryptedChannelID);
// 1) Deserialize the body to FlowHttpRequestData format, and deserialize comments of the github issue.
var dataFromRequestString = JsonConvert.DeserializeObject(bodyStr).ToString();
dataFromRequest = JsonConvert.DeserializeObject <FlowHttpRequestData>(dataFromRequestString);
commentsOfIssue = JsonConvert.DeserializeObject <List <FlowGitHubComment> >(dataFromRequest.Comments);
// 2) Get the conversation reference from the database.
var databaseName = _config["CosmosDBDatabaseName"];
var conversationReferenceCollectionName = _config["CosmosConversationReferenceCollection"];
FeedOptions queryOptions = new FeedOptions {
EnableCrossPartitionQuery = true
};
var lookupQuery1 = _documentClient.CreateDocumentQuery <ConversationReferenceData>(
UriFactory.CreateDocumentCollectionUri(databaseName, conversationReferenceCollectionName), queryOptions)
.Where(c => c.ChannelID == channelID);
var match = lookupQuery1.ToList();
var localConversationReferenceData = match[0];
var cachedConversationReference = localConversationReferenceData.ChannelConversationReferenceObject;
// 3) Call an appropriate callback.
var messageIdCollectionName = _config["CosmosMessageIdCollection"];
var lookupQuery2 = _documentClient.CreateDocumentQuery <ReplyChainData>(
UriFactory.CreateDocumentCollectionUri(databaseName, messageIdCollectionName), queryOptions)
.Where(r => r.ExternalTicketId == dataFromRequest.Id);
// For one external ticket id, there should be one messageID.
var messageID = lookupQuery2.ToList();
if (messageID.Count > 0)
{
// If this ticket already exists, update the previously sent card and send a reply indicating the card is updated.
await((BotAdapter)Adapter).ContinueConversationAsync(_appId, cachedConversationReference, BotCallbackForUpdate, default(CancellationToken));
}
else
{
// If this ticket is new, create a new card and mention people in a reply.
await((BotAdapter)Adapter).ContinueConversationAsync(_appId, cachedConversationReference, BotCallbackForSend, default(CancellationToken));
}
}
// This function gets invoked when an issue is re-opened, closed or a comment was made.
private async Task CreateReplyForUpdate(ITurnContext turnContext, string messageId,
FlowHttpRequestData dataFromRequest, CancellationToken cancellationToken)
{
// To create a reply chain, it is necessary to have 'messageID' in the
// ID of the given activity's conversation reference object.
// This mesageID is used to identify which message to follow up.
string firstConversationId = OriginalConversationId(turnContext);
UpdateConversationIdForReplyChain(turnContext, firstConversationId, messageId);
await ShowUpdatedStatusAndCommentsInReply(turnContext, cancellationToken);
// As this turncontext is global (this is created from the one
// conversation reference object we save when the bot is installed),
// we need to update the id of its activity's conversation reference
// object so other newly created cards can create replies properly.
// If we don't have this line, the request will have an incorrect
// form, eventually causing 502 internal server error.
turnContext.Activity.GetConversationReference().Conversation.Id = firstConversationId;
}
