FluentRest - Lightweight fluent wrapper over HttpClient

August 10, 2015

Features

Download

The FluentRest library is available on nuget.org via package name FluentRest.

To install FluentRest, run the following command in the Package Manager Console

PM> Install-Package FluentRest

NuGet Version

Fluent Request

Create a form post request

var client = new FluentClient();
client.BaseUri = new Uri("http://echo.jpillora.com/", UriKind.Absolute);

var result = await client.PostAsync<EchoResult>(b => b
    .AppendPath("Project")
    .AppendPath("123")
    .FormValue("Test", "Value")
    .FormValue("key", "value")
    .QueryString("page", 10)
);

Custom authorization header

var client = new FluentClient();
client.BaseUri = new Uri("https://api.github.com/", UriKind.Absolute);

var result = await client.GetAsync<Repository>(b => b
    .AppendPath("repos")
    .AppendPath("loresoft")
    .AppendPath("FluentRest")
    .Header(h => h.Authorization("token", "7ca..."))
);

Fake Response

FluentRest has the ability to fake an HTTP responses by using a custom HttpClientHandler. Faking the HTTP response allows creating unit tests without having to make the actual HTTP call.

Fake Response Stores

Fake HTTP responses can be stored in the following message stores. To create your own message store, implement IFakeMessageStore.

MemoryMessageStore

The memory message store allows composing a JSON response in the unit test. Register the responses on the start of the unit test.

Register a fake response by URL.

MemoryMessageStore.Current.Register(b => b
    .Url("https://api.github.com/repos/loresoft/FluentRest")
    .StatusCode(HttpStatusCode.OK)
    .ReasonPhrase("OK")
    .Content(c => c
        .Header("Content-Type", "application/json; charset=utf-8")
        .Data(responseObject) // object to be JSON serialized
    )
);

Use the fake response in a unit test

var serializer = new JsonContentSerializer();

// use memory store by default
var fakeHttp = new FakeMessageHandler();

var client = new FluentClient(serializer, fakeHttp);
client.BaseUri = new Uri("https://api.github.com/", UriKind.Absolute);

// make HTTP call
var result = await client.GetAsync<Repository>(b => b
    .AppendPath("repos")
    .AppendPath("loresoft")
    .AppendPath("FluentRest")
    .Header(h => h.Authorization("token", "7ca..."))
);

FileMessageStore

The file message store allows saving an HTTP call response on the first use. You can then use that saved response for all future unit test runs.

Configure the FluentRest to capture response.

var serializer = new JsonContentSerializer();

// use file store to load from disk
var fakeStore = new FileMessageStore();
fakeStore.StorePath = @".\GitHub\Responses";

var fakeHttp = new FakeMessageHandler(fakeStore, FakeResponseMode.Capture);

var client = new FluentClient(serializer, fakeHttp);
client.BaseUri = new Uri("https://api.github.com/", UriKind.Absolute);

var result = await client.GetAsync<Repository>(b => b
    .AppendPath("repos")
    .AppendPath("loresoft")
    .AppendPath("FluentRest")
    .Header(h => h.Authorization("token", "7ca..."))
);

Use captured response

var serializer = new JsonContentSerializer();

// use file store to load from disk
var fakeStore = new FileMessageStore();
fakeStore.StorePath = @".\GitHub\Responses";

var fakeHttp = new FakeMessageHandler(fakeStore, FakeResponseMode.Fake);

var client = new FluentClient(serializer, fakeHttp);
client.BaseUri = new Uri("https://api.github.com/", UriKind.Absolute);

var result = await client.GetAsync<Repository>(b => b
    .AppendPath("repos")
    .AppendPath("loresoft")
    .AppendPath("FluentRest")
    .Header(h => h.Authorization("token", "7ca..."))
);

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