FrameworkContainers 4.2.0

FrameworkContainers

Useful parts of Frameworks wrapped into single types.

PM> Install-Package FrameworkContainers

TL;DR

Replace what would normally be a whole service, with a single type.
Instead of creating some HttpService file everytime you start a new project, use the Http type instead.
Types are created with sensible defaults, sync, async, and error handled versions are also provided.
Works with dependency injection frameworks, types are low allocation; preferring to be static under the hood.

var response = await Http.PostJsonAsync<TRequest, TResponse>(request, url, headers);

Intro

This library contains snippets of code I find myself adding over, and over again to new projects.
The code is reusable, as it's not domain specific, though it is influenced by the way I code.

The components are not that complex, you could recreate them in a few hours, to similar effect.
That said, it's rather the point; I want those few hours back for each new project (and I'm sick of copy-pasting!).

Components

Each component has a static core, from here the methods can be accessed easily inline; as a standard type (i.e. no dependency injection required).
If dependency injection is needed, then each component also has a Client type, with an accompanying interface.

The components have been designed to handle most use cases, with the true aim to be simple to use.
If you find some component does not meet your needs, then drop it and write custom code instead of fighting the framework.
The components are built to be performant, and have the best defaults set; they are hard to use in a wrong way.

There are three distinct ways to use a component (excluding the static / client options mentioned above).
You can use the raw type T, which will throw any encountered exceptions.
You can use Response<T>, which will internally log any exceptions (when you set a logger), and only return a value of T when it can.
You can use Maybe<T>, which will return either T, or the error type Exception.
If you would like to know more about types: Response, and Maybe; please visit their repo ContainerExpressions.

Http Component

Send, and receive all the things over the network.
This component has support for get, post, put, and delete; with both sync, and async APIs.
The sync APIs are built on top of System.Net.WebRequest.
The async APIs are built on top of System.Net.Http.HttpClient.

[Things we do for you]

• Set a default timeout of 15 seconds.
• Set the content type, and content length.
• Write in UTF-8.
• Read error responses, adding them to the generated HttpException.
• Renew DNS (for the domain(s) you are calling).
• Disable insecure ciphers, only leaving up to date ones active.
• Enable fast header read.
• Async JSON uses System.Net.Http.Json, to serialize models via System.IO.Pipelines for best performance.

[Examples]

Get http body T:

string body = Http.Get("/api/weather");

Get http body Response<T>:

Response<string> body = Http.Response.Get("/api/weather");

Get http body Maybe<T>:

Maybe<string> body = Http.Maybe.Get("/api/weather");

Get http body IHttpClient:

IHttpClient http = new HttpClient();
string body = http.Get("/api/weather");

Create a new User from an Onboard request object using JSON, and the async API:

User user = await Http.PostJsonAsync<User, Onboard>(request);

[Http + Json + Model == Shortcuts]

var request = new Request();

// Awaitable http verbs that send / receive json, and serialize the request / response models.
var get = await new Get<Response>("https://example.com");
var put = await new Put<Request, Response>(request, "https://example.com");
var post = await new Post<Request, Response>(request, "https://example.com");
var patch = await new Patch<Request, Response>(request, "https://example.com");
var delete = await new DeleteStatus("https://example.com");

// Extension methods that collect the "Request" type, and wrap http / json calls.
var get = await "https://example.com".Get<Response>();
var post = await request.Send("https://example.com").Post<Response>();
var put = await request.Send("https://example.com").Put<Response>();
var patch = await request.Send("https://example.com").Patch<Response>();
var delete = await "https://example.com".DeleteStatus();

Json Component

Serialize, and deserialize JSON to, and from domain models.
This component's APIs are built on top of System.Text.Json.JsonSerializer.

[Things we do for you]

• Two serializer categories: Performant, and Permissive; one for speed, and one that "just works".
• JSON converters for standard types to "just work", they include: Bool, DateTime, Enum, Float, Guid, Int, and Long.

[Examples]

Json to model:

string json = "{\"name\": \"John Smith\"}";
User user = Json.ToModel<User>(json);

Model to json:

User user = new User { Name = "John Smith" };
string json = Json.FromModel(user);

Setting the JSON options:

User user = Json.ToModel<User>(json, JsonOptions.Performant);

Using a JSON converter (strings are converted to ints, nulls are converetd to 0, invalid values still throw errors):

[JsonConverter(typeof(DefaultIntConverter))]
public int Age { get; set; }

using Response<T>:

Response<User> user = Json.Response.ToModel<User>(json);

Using Maybe<T>:

Maybe<User> user = Json.Maybe.ToModel<User>(json);

Using IJsonClient:

IJsonClient json = new JsonClient();
User user = json.ToModel<User>(json);

[JSON converters]

You can add converters to JsonOptions, or to JsonSerializerOptions as follows:

// JsonOptions (i.e. FrameworkContainers):
var converters = JsonOptions.GetJsonConverters(); // Get's all primitive "default" converters (int, bool, etc).
converters.AddEnumConverter<Enum>(); // Add any enum properties you have.
converters.AddSmartEnumConverter<Colour>(); // Add any smart enum properties you have.

var options = JsonOptions.WithConverters(converters: converters.ToArray());
var payload = new OptionsModel();

var json = Json.FromModel(payload, options); // Json converters are sent in with the options.
var model = Json.ToModel<OptionsModel>(json, options);

// JsonSerializerOptions (i.e. System.Text.Json):
var settings = new JsonSerializerOptions();
settings.AddJsonConverters();
settings.Converters.AddEnumConverter<Enum>();
settings.Converters.AddSmartEnumConverter<Colour>();

var payload = new OptionsModel();

var json = JsonSerializer.Serialize(payload, settings);
var model = JsonSerializer.Deserialize<OptionsModel>(json, settings);

Xml Component

Serialize, and deserialize XML to, and from domain models.
This component's APIs are built on top of System.Xml.Serialization.XmlSerializer.

[Things we do for you]

• Remove default namespaces, and omit the XML declaration.
• Allow custom character encodings.
• Protection against malicious exceptions.
• Optimized stream for the XML deserializer, reducing string allocation.

[Examples]

XML to model:

User user = Xml.ToModel<User>(xml);

Model to XML:

string xml = Xml.FromModel(user);

Setting the XML options:

string xml = Xml.FromModel(user, new XmlOptions(true, true, null));

using Response<T>:

Response<User> user = Xml.Response.ToModel<User>(json);

Using Maybe<T>:

Maybe<User> user = Xml.Maybe.ToModel<User>(json);

Using IXmlClient:

IXmlClient xml = new XmlClient();
User user = xml.ToModel<User>(json);

Sql Component

Insert, update, select, and delete your way though the database (via stored procedures).
This component's APIs are built on top of System.Data.SqlClient.SqlConnection.

[Things we do for you]

• Provide both sync, and async APIs for: ExecuteReader, ExecuteNonQuery, and BulkInsert.
• Allow easy access to values with the Get<T> extension method.

[Examples]

Setting the global connection string:

Sql.ConnectionString = connectionString;

ExecuteNonQuery:

int rows = Sql.ExecuteNonQuery("usp_insert_user", new SqlParameter("@name", "John Smith"));

ExecuteNonQuery, overriding the global connection string:

int rows = Sql.ExecuteNonQuery("usp_insert_user", connectionString, new SqlParameter("@name", "John Smith"));

Async ExecuteReader using Get<T>:

IEnumerable<User> Read(IDataReader dr)
{
	List<User> results = new List<User>();
	while (dr.Read())
	{
		results.Add(new User
		{
			name = dr.Get<string>("Name")
		});
	}
	return results;
}

IEnumerable<User> users = await Sql.ExecuteReaderAsync(Read, "usp_select_users");

BulkInsert:

DataTable table = new DataTable();
table.Columns.Add("Name");
foreach (User user in users)
{
	var row = table.NewRow();
	row["Name"] = user.Name;
	table.Rows.Add(row);
}
table.AcceptChanges();

Sql.BulkInsert("tblUsers", table);

using Response<T>:

Response<int> rows = Sql.Response.ExecuteNonQuery("usp_insert_user", new SqlParameter("@name", "John Smith"));

Using Maybe<T>:

Maybe<int> rows = Sql.Maybe.ExecuteNonQuery("usp_insert_user", new SqlParameter("@name", "John Smith"));

Using ISqlClient:

ISqlClient sql = new SqlClient();
int rows = sql.ExecuteNonQuery("usp_insert_user", new SqlParameter("@name", "John Smith"));

Dependency Injection Component

Adds types to your DI framework of choice.
You provide a mapper, and DependencyInjection will provide the types.
Types are added by a naming convention: interface IService will match implementation Service.
There is a "sandbox mode", for cases when you'd like to provide different implementations.
When enabled any implementation of ServiceSandbox, will override Service.

[Things we do for you]

• Scan assemblies, find all exported types, and match IService, to Service.
• Provide a "sandbox mode", so services can be swapped out.

[Examples]

Using ASP.NET CORE's IServiceCollection:

public void ConfigureServices(IServiceCollection services)
{
	DependencyInjection.AddServicesByConvention((x, y) => services.AddSingleton(x, y), Assembly.GetExecutingAssembly().GetName().Name);
}

Also using IServiceCollection, adding services as singletons by default:

builder.services.AddServicesByConvention(Assembly.GetExecutingAssembly().GetName().Name);

Some helper functions off IServiceCollection to add Framework's clients to DI:

builder.services.AddFrameworkXmlClient();
builder.services.AddFrameworkJsonClient();
builder.services.AddFrameworkSqlClient();
builder.services.AddFrameworkHttpClient();

// You can add all of the above with:
builder.services.AddEverythingEverywhereAllAtOnce();

Logging Component

Hook up the ContainerExpressions Try, and Trace loggers with a simple extension method at startup:

services.AddLogging();
var sp = services.BuildServiceProvider();
sp.AddContainerExpressionsLogging(); // Creates a logger factory for Container Expressions to use.

Credits

• Icon made by Vitaly Gorbachev from Flaticon.

Changelog

2.0.0

• Started a changelog - reset the project.
• Added Sql for ExecuteReader, ExecuteNonQuery, and BulkInsert database operations.
• Added Http for Get, Post, Put, and Delete network operations.
• Added Json for Serialize, and Deserialize model operations.
• Added Xml for Serialize, and Deserialize model operations.
• Updated nuget pack settings, to make the project easier to deploy.

2.1.0

• Added a Dependency Injection helper, to add types from assemblies by naming convention (IService ⇒ Service).

2.2.0

• Removed the "Standalone" option for from DependencyInjection, as it was not needed when we already have "Sandbox" options.

3.0.0

• Added a maximum to the recursive depth for the XML, and JSON serializers; providing protection against malicious stackoverflow exceptions.
• Optimized the XML deserializer, to reduce string allocation when writing to a stream; adding seperate read, and write XmlOptions.
• Added JSON options to the HTTP options model.
• Generally aligned the interfaces between the clients.

4.0.0

• Replaced raw http string responses with a type: HttpBody.
• Added a new method to Http: Post245, a general way to cover 200, 400, and 500 http responses individually.
• Simplifed Xml, removing it's XmlOptions type.
• Added new WebClientOptions to HttpOptions for custom HttpClient configuration, and cancellation tokens.

4.1.0

• Added new awaitable http verb types allowing: var response = await new Get("https://example.com");

4.2.0

• Updated downstream dependencies.
• Added HttpExtensions allowing for simple web calls off models, and uris.
• Added a json converter for SmartEnum<T> - [JsonConverter(typeof(SmartEnumConverter<T>))].
• Added explicit support for dependency injection though IServiceCollection.
• Added logging configuration from the providers to ContainerExpressions.