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How to Add Customer and Product Observability to Your WSO2 APIs With Moesif

This guest blog was written by Matt Turner from Moesif. Moesif provides insights and tooling for API product owners to activate, understand, and monetize customers.

Introduction

APIs power the core features of many applications, connecting different systems and services. Because of this, API performance and functionality play a critical role in the overall user experience. Customer and product observability can ensure your APIs continue to work as expected and deliver top-notch user experiences.

In this blog post, we will discuss customer and product observability and why it matters for APIs. We also discuss the metrics you should track and show you how to implement observability using Moesif and WSO2 APK. By the end, you will have the knowledge and tools to observe how your APIs perform and how your customers use them. This will help you make data-driven decisions to optimize your API strategy.

What is Customer and Product Observability?

Customer and product observability defines the practice of collecting, analyzing, and understanding data about your API’s usage, performance, and overall health from both the customer and product perspective. This dual perspective allows for proactive monitoring of your APIs and ensuring they are running smoothly.

Customer observability allows you to understand how your customers use your APIs. This means tracking API usage patterns, traffic volume, response times, error rates, and customer satisfaction. By looking into these areas, you can identify issues early. This allows you to optimize the customer experience and proactively fix any problems that may arise.

Product observability covers the technical aspects of your APIs. It monitors your API endpoints' underlying infrastructure, dependencies, and performance. This means tracking metrics like server load, database queries, caching efficiency, and the overall health of your API infrastructure. By looking into these areas, you can ensure your APIs perform optimally and identify any bottlenecks or performance issues that may impact your customers.

Customer and product observability gives you a complete view of your API lifecycle, enabling you to make informed decisions about designing, developing, and maintaining your APIs. This approach enables you to deliver a seamless and reliable API experience to your customers and ensure the long-term success of your API strategy.

Why is Customer and Product Observability Important for APIs?

Not all organizations apply customer and product observability to their APIs. Although we often talk about treating APIs as a product, looking at customer and product metrics sometimes becomes an afterthought for the developers and organizations building and publishing APIs. Nonetheless, customer and product observability is important for APIs for the following reasons:

Proactive Issue Detection and Resolution

You can detect anomalies, errors, or performance degradations in real-time by monitoring your APIs. This allows you to fix issues before they become problems for your customers and deliver a seamless and reliable API experience.

Better Customer Experience

Understanding how your customers use your APIs allows you to identify pain points, optimize usage flows, and tailor your APIs to their needs. This means higher customer satisfaction, more adoption, and stronger relationships with your users.

Data-Driven Decision Making

Observability gives you valuable data and insights into how your APIs perform. This includes key metrics like the most popular endpoints and how customers use them. Based on real-world usage patterns, this enables you to make informed decisions about API design, development, and prioritization.

Improved Performance and Reliability

By monitoring the technical aspects of your APIs, you can identify bottlenecks, optimize resource utilization, and fine-tune your infrastructure for optimal performance. This means faster response times, scalability, and a reliable API platform.

Business Growth and Innovation

Observability can reveal new opportunities for API monetization, product expansion, or partnerships. By understanding how your APIs drive business value, you can identify areas for growth and innovation.

Security and Compliance

Monitoring API traffic and usage patterns can help you detect and mitigate security threats such as unauthorized access or malicious attacks. It also enables you to ensure compliance with industry regulations and data protection standards.

In short, customer and product observability have become critical components of modern API management. They help you understand your APIs, optimize them, deliver a better customer experience, and drive business success in the digital world.

What to Measure?

This section briefly discusses some essential product and customer metrics you should measure. These metrics demonstrate the indispensable data that hides behind the scenes in your API infrastructure and traffic. Below, we break down a few areas under both customer and product metrics, qualitative and quantitative, that you should focus on.

Customer Metrics

  • API Usage:
    • Total requests: Overall API calls.
    • Requests per endpoint: The most popular endpoints and, in contrast, the underutilized endpoints.
    • Requests per customer: How different customers are using your APIs.
  • Response Times:
    • Average response time: Overall API response time, measuring the typical duration an API requires to process a request and return a response.
    • Response time percentiles—for example, 95th percentile: Outliers and performance issues.
    • Response time by endpoint: Slow endpoints.
    • Time to First Hello World (TTFHW): Time it takes to integrate and receive a first response from an endpoint.
  • Error Rates:
    • Total errors: Overall errors in your API.
    • Errors per endpoint: Endpoints producing errors, error rate by endpoint, offering a comparative health check for erroneous endpoints.
    • Error types: Classify errors to understand the root cause, which may be client errors or server errors.
  • Customer Satisfaction:
    • Net Promoter Score (NPS): Overall customer satisfaction with your APIs.
    • Customer feedback: Qualitative feedback through surveys or other channels.
    • User analytics: User behavior patterns to identify pain points or areas for improvement in the API usage experience.

Product Metrics

  • Serverless Function Performance (if applicable):
    • Cold Start Duration: Time to produce the first response from a cold-started function.
    • Function Execution Time: Function invocation duration.
    • Function Memory Usage: Function memory usage to optimize resource allocation.
  • API Dependencies:
    • Dependency Latency: The response time of external services or dependencies on which your API depends.
    • Dependency Errors: Errors in external dependencies to identify issues upstream.
  • API Reliability and Errors:
    • API Uptime: Availability of your API endpoints.
    • Error Rate Trends: Overall error rate to identify patterns or spikes over time.
    • Error Analysis: Error logs and stack traces to diagnose and troubleshoot.

By monitoring these and other metrics, you can gain valuable insights into your APIs. These insights help you catch problems early and make data-driven decisions to optimize your API strategy.

How to Implement Customer and Product Observability with Moesif and WSO2

Moesif seamlessly integrates with WSO2 APK with its native plugin. Here’s a quick start with all the resources you need to integrate Moesif with your WSO2 APK API successfully:

  1. Create a Moesif Account: If you don’t have one already, sign up for a Moesif account. We offer a free 14-day trial to get you started without a credit card.
  2. Install and set up Moesif WSO2 Integration: Follow the integration instructions in Moesif documentation for WSO2 APK. This involves providing your Moesif API key and setting up filters or configurations to control what API traffic WSO2 sends to Moesif for analysis.
  3. Start Collecting Data: Moesif collects data from your WSO2 APK API once you complete the integration. This includes API requests and responses, errors, performance metrics, etc.
  4. Analyze and Visualize Data: Moesif Portal is your central hub for all your analytics and Moesif’s rich feature sets. You can access dashboards and analytics tools to visualize and analyze the collected data. You can create custom dashboards, set up alerts for specific events, and get valuable insights into your API usage and performance.
  5. Use Moesif Features: Explore Moesif’s additional features:
  • API Monitoring: Set up real-time monitoring of your APIs to detect anomalies, errors, or performance issues.
  • API Analytics: Get deep insights into API usage patterns, trends, and customer behavior.
  • API Security: Identify and mitigate security threats such as unauthorized access or malicious attacks.

You can also look at WSO2 docs on integrating Moesif for more specifics.

With these steps, you can easily integrate Moesif’s powerful observability platform into your WSO2 APK API. Once integrated, Moesif will infuse your API portfolio with end-to-end customer and product observability. With this capability added, you can make data-driven decisions, optimize your API strategy, and deliver superior API experiences to your customers.

Conclusion

Customer and product observability has become an absolute requirement for driving effective API development and management operations. They provide the insights and data-driven decision-making capabilities to deliver great API experiences, optimize performance, and grow business.
Using Moesif with WSO2 APK API gives you invaluable information about how your consumers use your APIs, how your APIs are scaling, and where problems might occur. With a robust observability integration like Moesif and WSO2 APK, you empower yourself with a data-driven, proactive, and customer-centric API strategy. This positively influences your entire journey so you can confidently grow your API product with minimal friction.
Remember that succeeding with customer and product observability requires an ongoing effort and preparedness to implement revisions to certain aspects of your business. Continuously monitoring, analyzing, and learning from your API data is essential. It helps you stay ahead of the curve, adapt to changing customer needs, and remain competitive in the digital market.