Injecting settings into service from appsettings.JSON - asp.net-core

Question

I have a service which read the data from a queue (Rabbit MQ - ProduceQueue), takes action on the message and publishes the status on a separate status queue (Rabbit MQ - StatusQueue).
The issue I am facing is I am not able to instantiate the Producer and Consumer with separate settings when I resolve the service instance.
JSON Settings:
"RabbitMQConnection": {
"UserName": "guest",
"Password": "guest",
"HostName": "localhost",
"QueueName": "TaskExecutorPublisher",
"ExchangeName": "TaskProducerExchange",
"Port": "9090"
},
"RabbitMQStatusConnection": {
"UserName": "guest",
"Password": "guest",
"HostName": "localhost",
"QueueName": "SequenceStatusPublisher",
"ExchangeName": "StatusExchange",
"Port": "9091"
}
Program.cs:
IHost host = Host.CreateDefaultBuilder(args)
.ConfigureAppConfiguration(app => { app.SetBasePath(Directory.GetCurrentDirectory()); app.AddJsonFile("appsettings.json"); })
.ConfigureServices((context, services) =>
{
//services.AddMvcCore();
//services.AddMvc();
services.AddLogging();
services.AddSingleton<IMQConsumer, RabbitMQConsumer>()
.AddOptions<IMQConnectionConfiguration>().Configure(options =>
{
options.HostName = context.Configuration["RabbitMQConnection:HostName"];
options.Port = Convert.ToInt32( context.Configuration["RabbitMQConnection:Port"]);
options.UserName = context.Configuration["RabbitMQConnection:UserName"];
options.Password = context.Configuration["RabbitMQConnection:Password"];
options.ExtensionProperties = new Dictionary<string, string>() {
{ "QueueName", context.Configuration["RabbitMQConnection:QueueName"] },
{ "ExchangeName",context. Configuration["RabbitMQConnection:ExchangeName"] }};
});
services.AddSingleton<IMQProducer, RabbitMQProducer>()
.AddOptions<IMQConnectionConfiguration>().Configure(options =>
{
options.HostName = context.Configuration["RabbitMQStatusConnection:HostName"];
options.Port = Convert.ToInt32(context.Configuration["RabbitMQStatusConnection:Port"]);
options.UserName = context.Configuration["RabbitMQStatusConnection:UserName"];
options.Password = context.Configuration["RabbitMQStatusConnection:Password"];
options.ExtensionProperties = new Dictionary<string, string>() {
{ "QueueName", context.Configuration["RabbitMQStatusConnection:QueueName"] },
{ "ExchangeName",context. Configuration["RabbitMQStatusConnection:ExchangeName"] }};
});
services.AddHostedService<ExecutorServiceAPI>();
services.AddSingleton<IMQConnectionConfiguration, ConnectionConfiguration>(option =>
{
var connectionConfig = new ConnectionConfiguration();
connectionConfig.HostName = context.Configuration["RabbitMQConnection:HostName"];
connectionConfig.Port = Convert.ToInt32(context.Configuration["RabbitMQConnection:Port"]);
connectionConfig.UserName = context.Configuration["RabbitMQConnection:UserName"];
connectionConfig.Password = context.Configuration["RabbitMQConnection:Password"];
connectionConfig.ExtensionProperties = new Dictionary<string, string>() {
{ "QueueName", context.Configuration["RabbitMQConnection:QueueName"] },
{ "ExchangeName",context. Configuration["RabbitMQConnection:ExchangeName"] }};
return connectionConfig;
});
}).UseWindowsService()
ExecutorService code :
public class ExecutorServiceAPI : IHostedService
{
private readonly ILogger _logger;
private IMQConsumer _consumerConnection;
private IMQProducer _producerConnection;
public ExecutorServiceAPI(ILogger<ExecutorServiceAPI> logger, IMQConsumer consumerConnection, IMQProducer producerConnection)
{
if (consumerConnection == null)
throw new ArgumentNullException(nameof(consumerConnection));
_logger = logger;
_consumerConnection = consumerConnection;
_producerConnection = producerConnection;
}
}

Answer 1

In appsettings.json:
"Settings": {
"RabbitMQConnection": {
"UserName": "guest",
"Password": "guest",
"HostName": "localhost",
"QueueName": "TaskExecutorPublisher",
"ExchangeName": "TaskProducerExchange",
"Port": "9090"
},
"RabbitMQStatusConnection": {
"UserName": "guest",
"Password": "guest",
"HostName": "localhost",
"QueueName": "SequenceStatusPublisher",
"ExchangeName": "StatusExchange",
"Port": "9091"
}
}
Settings:
public class Settings
{
public SettingProperties RabbitMQConnection { get; set; }
public SettingProperties RabbitMQStatusConnection { get; set; }
}
SettingProperties:
public class SettingProperties
{
public string UserName { get; set; }
public string Password { get; set; }
public string HostName { get; set; }
public string QueueName { get; set; }
public string ExchangeName { get; set; }
public string Port { get; set; }
}
In Progarm.cs (.net 6) , add below code:
builder.Services.Configure<Settings>(builder.Configuration.GetSection("Settings"));
Then in HomeController:
public class HomeController : Controller
{
private readonly Settings _MysettingsM;
public HomeController(IOptions<Settings> APPsettings)
{
_MysettingsM = APPsettings.Value;
}
public IActionResult Index()
{
var R1= _MysettingsM.RabbitMQConnection;
var R2 = _MysettingsM.RabbitMQStatusConnection;
return View();
}
}
result: