async Task <Immutable <CfnResponse> > CreateSeed(CfnRequest cfnRequest, Immutable <CfnResponse> cfnResponse, ILambdaContext context)
{
try
{
var seedData = cfnRequest.ResourceProperties.SeedData;
if (seedData == null ||
seedData.Count() == 0 ||
(seedData.Count() == 1 && string.IsNullOrEmpty(seedData.First())))
{
return(cfnResponse);
}
var request = seedData.Select(seed =>
{
return(new SaveItemRequest
{
Id = "U1",
Name = "This is a custom data inserted using a custom resource",
Key = seed
});
});
var result = await _itemService.BatchWrite(request);
if (result != null)
{
LogHandler.LogMessage(context, "Db seeding successful");
return(cfnResponse.Modify(r => r.Status = "SUCCESS"));
}
else
{
LogHandler.LogMessage(context, "Db seeding failed");
return(cfnResponse.ToBuilder()
.Modify(r => r.Status = "FAILED")
.Modify(r => r.Reason = $"Resource: {_tableName} not found")
.ToImmutable());
}
}
catch (Exception ex)
{
LogHandler.LogMessage(context, ex.StackTrace);
return(cfnResponse.ToBuilder()
.Modify(r => r.Status = "FAILED")
.Modify(r => r.Reason = ex.Message)
.ToImmutable());
}
}
async Task <Immutable <CfnResponse> > DeleteTable(CfnRequest cfnRequest, Immutable <CfnResponse> cfnResponse, ILambdaContext context)
{
try
{
await _itemService.DeleteTable();
await _userService.DeleteTable();
LogHandler.LogMessage(context, $"Request {cfnRequest.RequestType} executed Successfully");
return(cfnResponse.Modify(r => r.Status = "SUCCESS"));
}
catch (Exception ex)
{
LogHandler.LogMessage(context, $"Message: {ex.Message} /Trace: {ex.StackTrace}");
return(cfnResponse.ToBuilder()
.Modify(r => r.Status = "FAILED")
.Modify(r => r.Reason = ex.Message)
.ToImmutable());
}
}
// Explicit call to cfn ResponseURL to confirm creation of custom resource
void SendResponseToCfn(CfnRequest cfnRequest, Immutable <CfnResponse> cfnResponse)
{
var serializerSettings = new JsonSerializerSettings();
serializerSettings.Converters.Add(new ImmutableJsonConverter());
string json = JsonConvert.SerializeObject(cfnResponse, serializerSettings);
byte[] byteArray = Encoding.UTF8.GetBytes(json);
var httpRequest = WebRequest.Create(cfnRequest.ResponseURL) as HttpWebRequest;
httpRequest.Method = "PUT";
httpRequest.ContentType = "";
httpRequest.ContentLength = byteArray.Length;
using (Stream datastream = httpRequest.GetRequestStream())
{
datastream.Write(byteArray, 0, byteArray.Length);
}
httpRequest.GetResponse();
}