Step by Step Guide to Building a MemberPress API Integration in C#

Introduction

Hey there, fellow developer! Ready to dive into the world of MemberPress API integration? You're in for a treat. We're going to walk through building a robust C# integration that'll have you managing memberships like a pro in no time. Let's get cracking!

Prerequisites

Before we jump in, make sure you've got these essentials:

• Visual Studio or your favorite C# IDE
• .NET Core 3.1 or later
• MemberPress API credentials (you've got these, right?)

Setting up the project

First things first, let's get our project off the ground:

1. Fire up Visual Studio and create a new C# Console Application.
2. Time to grab some packages. Open up your Package Manager Console and run:

Install-Package RestSharp
Install-Package Newtonsoft.Json

These will make our lives easier when dealing with HTTP requests and JSON parsing.

Authenticating with the MemberPress API

Alright, security first! Let's implement OAuth 2.0:

public class MemberPressAuthenticator
{
    private string _clientId;
    private string _clientSecret;
    private string _accessToken;

    public MemberPressAuthenticator(string clientId, string clientSecret)
    {
        _clientId = clientId;
        _clientSecret = clientSecret;
    }

    public async Task<string> GetAccessTokenAsync()
    {
        // Implement OAuth flow here
        // Store and return access token
    }
}

Pro tip: Don't forget to implement token refreshing to keep your integration running smoothly!

Creating API client

Now, let's build our API client:

public class MemberPressClient
{
    private RestClient _client;
    private MemberPressAuthenticator _authenticator;

    public MemberPressClient(string baseUrl, MemberPressAuthenticator authenticator)
    {
        _client = new RestClient(baseUrl);
        _authenticator = authenticator;
    }

    public async Task<T> ExecuteRequestAsync<T>(RestRequest request)
    {
        request.AddHeader("Authorization", $"Bearer {await _authenticator.GetAccessTokenAsync()}");
        var response = await _client.ExecuteAsync<T>(request);
        
        // Handle rate limiting and errors here
        
        return response.Data;
    }
}

Implementing core API functionalities

Time to put our client to work! Let's implement some key features:

public class MemberPressService
{
    private MemberPressClient _client;

    public MemberPressService(MemberPressClient client)
    {
        _client = client;
    }

    public async Task<List<Member>> GetMembersAsync()
    {
        var request = new RestRequest("members", Method.GET);
        return await _client.ExecuteRequestAsync<List<Member>>(request);
    }

    public async Task<Membership> CreateMembershipAsync(MembershipRequest membershipRequest)
    {
        var request = new RestRequest("memberships", Method.POST);
        request.AddJsonBody(membershipRequest);
        return await _client.ExecuteRequestAsync<Membership>(request);
    }

    // Implement other methods for subscriptions, transactions, etc.
}

Error handling and logging

Don't let those pesky errors catch you off guard:

public class MemberPressException : Exception
{
    public int StatusCode { get; set; }
    public string ResponseContent { get; set; }

    public MemberPressException(string message, int statusCode, string responseContent)
        : base(message)
    {
        StatusCode = statusCode;
        ResponseContent = responseContent;
    }
}

// In your client:
if (!response.IsSuccessful)
{
    throw new MemberPressException("API request failed", (int)response.StatusCode, response.Content);
}

As for logging, consider using a library like Serilog for comprehensive logging capabilities.

Testing the integration

Test, test, and test again! Here's a quick unit test example:

[TestMethod]
public async Task GetMembers_ReturnsListOfMembers()
{
    var mockClient = new Mock<MemberPressClient>();
    mockClient.Setup(c => c.ExecuteRequestAsync<List<Member>>(It.IsAny<RestRequest>()))
        .ReturnsAsync(new List<Member> { new Member { Id = 1, Name = "John Doe" } });

    var service = new MemberPressService(mockClient.Object);
    var result = await service.GetMembersAsync();

    Assert.AreEqual(1, result.Count);
    Assert.AreEqual("John Doe", result[0].Name);
}

Best practices and optimization

Remember these golden rules:

1. Cache frequently accessed data to reduce API calls.
2. Use asynchronous operations to keep your application responsive.
3. Implement exponential backoff for rate limit handling.

Conclusion

And there you have it! You've just built a solid foundation for your MemberPress API integration. Remember, practice makes perfect, so keep experimenting and refining your code.

For more in-depth info, check out the MemberPress API documentation. Happy coding, and may your integrations always be smooth and your tokens never expire!