public async Task <IEnumerable <CountryDto> > Handle(GetCountriesQuery request, CancellationToken cancellationToken)
{
var countryDtos = new List <CountryDto>();
var cacheKey = nameof(GetCountriesQuery);
string serializedCountries;
var redisCountries = await _distributedCache.GetAsync(cacheKey);
if (redisCountries != null)
{
serializedCountries = Encoding.UTF8.GetString(redisCountries);
countryDtos = JsonConvert.DeserializeObject <List <CountryDto> >(serializedCountries);
}
else
{
var countries = await _context.Countries.ToListAsync();
countryDtos = countries.Select(c => new CountryDto
{
Id = c.Id,
SortName = c.SortName,
Name = c.Name
}).ToList();
serializedCountries = JsonConvert.SerializeObject(countryDtos);
redisCountries = Encoding.UTF8.GetBytes(serializedCountries);
//TODO: Need to move options to global of the system.
var options = new DistributedCacheEntryOptions()
.SetAbsoluteExpiration(DateTime.Now.AddMinutes(10))
.SetSlidingExpiration(TimeSpan.FromMinutes(2));
await _distributedCache.SetAsync(cacheKey, redisCountries, options);
}
return(countryDtos);
}
public async Task <IEnumerable <CountryDto> > Handle(GetCountriesQuery request, CancellationToken cancellationToken)
{
var countryDtos = new List <CountryDto>();
countryDtos = await _redisCacheManager.GetAsync <List <CountryDto> >(nameof(GetCountriesQuery));
if (countryDtos != null)
{
return(countryDtos);
}
var countries = await _unitOfWork.Countries.GetAllAsync();
countryDtos = countries.Select(c => new CountryDto
{
Id = c.Id,
SortName = c.SortName,
Name = c.Name
}).ToList();
await _redisCacheManager.SetAsync <List <CountryDto> >(nameof(GetCountriesQuery), countryDtos);
return(countryDtos);
}
