public async Task <PaginatedList <ConversationMessageDto> > Handle(MessagesQuery query,
CancellationToken cancellationToken)
{
var key = query.Identify();
try
{
_logger.LogInformation("[WLODZIMIERZ.API / Conversations] Reading from the cache: {Name} {@Query}",
nameof(MessagesQuery), query);
return(await ReadFromCache(key));
}
catch (NotFoundException)
{
_logger.LogWarning(
"[WLODZIMIERZ.API / Conversations] No entry found for the passed key in the cache");
_logger.LogInformation(
"[WLODZIMIERZ.API / Conversations] Reading from the database: {Name} {@Query}",
nameof(MessagesQuery), query);
return(await ReadFromDatabase(query, key));
}
}
private async Task <PaginatedList <ConversationMessageDto> > ReadFromDatabase(MessagesQuery query, object key)
{
return(await _context.ConversationMessages
.Where(e => e.Conversation.ConversationId == query.ConversationId)
.OrderByDescending(x => x.Publish)
.ProjectTo <ConversationMessageDto>(_mapper.ConfigurationProvider)
.ProjectToPaginatedListAsync(query.PageNumber, query.PageSize)
.MapUsersAsync(_usersFacade)
.Cache(_cache, key));
}
private async Task <PaginatedList <ConversationMessageDto> > ReadFromDatabase(MessagesQuery query)
{
var messages = await _context.ConversationMessages
.Where(e => e.Conversation.ConversationId == query.ConversationId)
.OrderByDescending(x => x.Publish)
.ProjectTo <ConversationMessageDto>(_mapper.ConfigurationProvider)
.PaginatedListAsync(query.PageNumber, query.PageSize);
await _usersFacade.MapAsync(messages);
return(messages);
}
public async Task <PaginatedList <ConversationMessageDto> > Handle(MessagesQuery request,
CancellationToken cancellationToken)
{
return(await ReadFromDatabase(request));
}