/// <summary>
/// Takes in the APIGatewayProxyRequest, determines
/// what command is requested, executes the command,
/// and returns the serialized data in an
/// APIGatewayProxyResponse.
/// </summary>
/// <param name="apiGatewayRequest"></param>
/// <returns></returns>
public APIGatewayProxyResponse Handler(APIGatewayProxyRequest apiGatewayRequest)
//public APIGatewayProxyResponse Handler(APIGatewayProxyRequest apiGatewayRequest, ILambdaContext lambdaContextnotepad)
{
if (inDevMode)
{
Console.WriteLine(apiGatewayRequest.Path + "\n" + apiGatewayRequest.HttpMethod + "\n" + apiGatewayRequest.Body);
}
//Initializing the response object sent back to the user.
APIGatewayProxyResponse response = new APIGatewayProxyResponse()
{
StatusCode = (int)(HttpStatusCode.NoContent),
Body = string.Empty
};
//New-up Action objects and executes.
//Get the mysql database connection from the Environment Variables supplied by AWS Lambda.
try
{
//DB Connection
//string mySQLConnectionString = Environment.GetEnvironmentVariable("MYSQL_CONN");
//Deserialize the JSON object sent by the user.
Dictionary <string, string[]> requestBody = JsonConvert.DeserializeObject <Dictionary <string, string[]> >(apiGatewayRequest.Body);
//Create an Action item that is used to get/set data for the Command Objects.
Model.Action newAction = new Model.Action(requestBody, mySQLConnectionString);
//Parser to determine which Command Object to use and execute.
ActionParser parse = new ActionParser();
//Instantiation of the appropriate Command Object generated by the parser.
ActionCommand action = parse.DetermineCommandType(newAction);
//Executes the Command Object.
ActionExecutor executor = new ActionExecutor();
//Have the Executor execute on the Command Object, and store the resulting data in a Dictionary<string,string[]>.
Dictionary <string, string[]> responseData = executor.ExecuteCommand(action);
//Serialize the data to be returned to the user.
response.Body = JsonConvert.SerializeObject(responseData);
//Give an OK status code, and add some headers that will allow the return trip
//back to the user.
response.StatusCode = (int)(HttpStatusCode.OK);
response.Headers = new Dictionary <string, string> {
{ "Content-Type", "text/json" }
};
response.Headers.Add("Access-Control-Allow-Origin", "*");
response.Headers.Add("Access-Control-Allow-Credentials", "true");
response.Headers.Add("Access-Control-Allow-Methods", "GET, POST, DELETE");
response.Headers.Add("Access-Control-Allow-Headers", "Content-Type");
}
catch (ArgumentOutOfRangeException argOutExcep)
{
//Timeout exceeded before the response returned.
Console.WriteLine(argOutExcep.Message);
Console.WriteLine(argOutExcep.StackTrace);
response.StatusCode = (int)(HttpStatusCode.RequestTimeout);
}
catch (Exception ex)
{
//Timeout exceeded before the response returned.
Console.WriteLine(ex.Message);
Console.WriteLine(ex.StackTrace);
response.StatusCode = (int)(HttpStatusCode.InternalServerError);
}
if (inDevMode)
{
Console.WriteLine(response.StatusCode + '\n' + response.Body);
}
return(response);
}
