Uber, Netflix, Spotify, and Etsy. Guess what all these businesses have in common? They are all leveraging microservices development for their software applications. 

In a microservice architecture, you can split down an application component into small, independent services. This enables you to develop, deploy, and scale a service without affecting other services. 

This is the reason why big organizations are shifting from a monolithic architecture to microservices development. However, adopting a microservices architecture for software development comes with its own set of challenges.

Like increasing the complexity of operation, testing, etc. To overcome these challenges or lower their impact, you can implement some common practices for developing microservice architecture. 

In this blog, you will discover 11 Microservices Best Practices that can aid you in the journey of microservice software development. 

Here is a quick roadmap

  1. Align Microservices with Business Domains Using Domain-Driven Design
  2. Ensure Single Responsibility for Maintainable Microservices
  3. Decouple Microservice Data with Separate Databases
  4. Leverage Asynchronous Communication for Resilience
  5. Containerized Microservices for Portability and Scalability
  6. Extend microservices to the front-end with micro frontends.
  7. Embrace Stateless Design for Horizontal Scalability
  8. DevOps Culture for Efficient Microservices Management
  9. Proactive Monitoring and Maintenance for Microservices Ecosystems
  10. Avoid Hardcoding for Flexible and Adaptable Microservices
  11. Choose the Right Technologies to Optimize Microservices Performance

11 Best Practices of Microservices Development

Aligning Microservices with Business Domains Using Domain-Driven Design

This approach to the best practices of microservices focuses on modeling microservices architecture software development based on business domains. It lets you define the boundaries of each microservice.  

There are two types of domain driven design.

1. Strategic: In this, you design the large-scale structure of the system. It ensures that your architecture remains focused on business capabilities.

2. Tactical: Tactical DDD provides design patterns (entities, aggregates, and domain services) to create domain models. This allows for the design of loosely coupled and cohesive microservices.  

By utilizing a tactical model, you can design microservices that align closely with business domains. This will allow services to have a well-defined purpose. Thus, you can create scalable and easy to maintain software using this.


Ensure Single Responsibility for Maintainable Microservices

What will help you manage a task better? If you have a predefined task that only you have to manage or have a lot of tasks that others are also managing.

The first option, right? The single responsibility principle states the same. As per this principle, each microservice must have a single and well-defined responsibility. That is, it must focus on a single business component. This way, you can ensure microservices are small, manageable, and easy to deploy or replace.            

Also, you must keep the modules decoupled so that you can develop, test, and deploy them individually without affecting other modules.

E.g., An ecommerce platform has separate microservices architecture software development for product catalog, carts, wish lists, user logins, payment processing, etc. 

                                                                               

Decouple Microservice Data with Separate Databases

According to this concept, each microservice must have a separate database. They must act as an autonomous entity and implement their functionality individually. This ensures that even if a single microservice fails, it will not affect the other microservices.

Unlike monolithic architecture, you must not have the same database for multiple services. You can use an API to enable a microservice to fetch data from another. This allows each microservice to manage its own logging and caching mechanism without affecting other microservices.

To implement this concept, you can use solutions like the Saga pattern, API composition, and CQRS (Composition Query Responsibility Segregation).


  •  API composition: This allows task coordination by allowing multiple microservices to communicate (via API). This allows implementation of complex transactions and queries across multiple microservices.
  • Command Query Responsibility Segregation (CQRS) pattern: This pattern differentiates the read and write operations for data, allowing for better management of complex data models. This can help improve the performance and scalability of the system.
  • SAGA Pattern: In this pattern, you can split complex transactions in microservices into smaller, coordinated steps. This ensures data consistency and error handling for each service involved.


Leverage Asynchronous Communication for Resilience 

You can set up communication in two ways in a microservice architecture.


  • Synchronous (communication in real time)

In this, a client sends a request and waits for a response. HTTPs using protocols like REST, GraphQL, and GRPC are common examples. This is best when you need real time response, like someone liking your Instagram post and you getting a notification immediately.

  • Asynchronous (communication is independent of time) 

In this, a client sends a request and does not wait for the response but instead continues with their own proceedings. It is best when multiple services have to react at the same time. For instance, sending a message to a queue for further processing by another service.

Asynchronous communication is a better option in a microservice setup. This is because it allows for greater resilience and autonomy of each microservice. It does not rely on other microservices for the initial service's HTTP request/response operation.


Containerized Microservices for Portability and Scalability

Containerization means deploying microservices by bundling them along with their codebase, libraries and files (that are needed to run it). This allows the microservice to be deployed consistently across various computing models.

Containers are more portable and efficient than virtual machines. This makes it easy for you to scale and improve portability.

A Container deployment process includes  

  • Building (a container image), 
  • Deploying it (in computing environment) and 
  • Managing it (using containerization platform)

Extend Microservices to the Front-end with Micro Frontends 

This concept extends the capabilities of microservices development services to the frontend. In this way, you can break down the user interface into small, independent features. Then you can bundle them together to create a single frontend application.

This makes the development process faster as each team works on one particular business domain. 

IKEA and Spotify have implemented this concept in their new and old code bases. This gives them leverage to respond more quickly to market changes. Also, they can now provide a unique customer experience, leading to faster growth.

Embrace Stateless Design for Horizontal Scalability 

This principle treats servers as stateless. This means that each request from a client is handled independently, without the server storing any information about previous requests or the client's state. This enables horizontal scaling by adding more instances of the service.  

Each instance can handle any request without the need to share state information. Also, since each request is handled independently, there is no risk of data inconsistency. You can easily replace microservices if a server fails without losing any state information.

DevOps Culture for Efficient Microservices Management

DevOps culture integrates and automates the work of software development and IT operations. Thus, it improves collaboration and communication between these teams. This can help in handling complex microservice ecosystems. 

The modularity of microservice architecture complements the collaboration-driven DevOps workflow. This enables continuous integration and continuous delivery (CI/CD) pipelines, which optimize building, testing, and deploying services.

Proactive Monitoring and Maintenance

The complexity and need for maintenance increase if you migrate from a monolithic architecture to microservices development services. 

You need to constantly check if all microservices are functioning as needed and are using resources efficiently. You also need to monitor the ongoing changes to resource allocation. 

You can adopt a Blackbox approach for the same. The Black Box approach sets service latency and error rates as the key metrics. Performance testing, security, and historical data analysis are also important parts of monitoring. You can use tools like JMeter or Gatling to identify any issues and optimize the system's performance.

You can also leverage AI-enabled tools like Instana and Dynatrace for better observability, intelligent insights and proactive problem-solving

Avoid Hardcoding for Flexible and Adaptable Microservices

This rule states to avoid the use of hardcoding in microservice architecture. Hardcoding means writing specific, fixed values directly into the code. Let's use an example to understand why:

Imagine you have an e-commerce app. When the customer places an order, the customer service needs to communicate with the shipping service to handle the delivery. In a traditional approach, the developers might hardcode the address or location of the shipping service directly into the customer service code. 

This means if the network configuration or location of the shipping service changes, the customer service code would need to be updated to reflect that change. To avoid this issue, a better approach is to use a network discovery mechanism, like a proxy or service registry. 

This allows customer service to discover the location of the shipping service dynamically, instead of having it hardcoded.

Choose the Right Technologies to Optimize Microservices Performance

In microservices development services, each service is independent of the others. So, you can use different technologies for developing different services.

Selecting the right technology or language is crucial for achieving better results from microservice architecture. 

However, as so many technologies are available, selecting the right one can be challenging. You can consider factors like scalability, maintainability, cost of architecture, ease of deployment, and fault tolerance to select the right one.  

Beyond the Basics: Additional Microservices Considerations

These are the 11 most common microservices best practices that can help you build and maintain a microservice architecture efficiently. However, the list doesn’t end here. There are more such practices that you can consider. 

  • Loose Coupling: Ensuring microservices have minimal knowledge of each other reduces dependencies. 
  • High Cohesion: Designing microservices to encapsulate all related data and functionality together. 
  • Dedicated Teams: Assigning separate teams to own and develop individual microservices enables faster delivery.

Remember, the best practices may differ as per your business type and goal you aim to achieve. It is best to thoroughly consider all the factors before deciding which practices are the best for you. 

If you need help migrating from a monolithic to a microservices development service or want to speed up the process, we can help. 

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FAQ

  • 01

    What is microservices architecture?

    • A microservices architecture is a design approach where software is developed as a collection of small, independent services. Each service focuses on a specific task. They all work together to provide the overall functionality of the application.

  • 02

    What is the best way to create a microservice architecture?

    • To create a microservices architecture, you should: Understand your product goals and requirements. Identify the different features and functions of your application. Determine how these features and functions should interact. Create a blueprint that shows how all the components of your application will work together.

  • 03

    Who can help me with building a microservices project?

    • You can find experienced microservices developers on our platform. You can submit a project specification form, and our expert will get in touch with you to discuss your requirements.