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Understanding Micro Frontends (MFE) And Its Significance

02 Apr 2024

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Shivani Sabby


In web development, it is crucial to stay up to date with the changing world of technologies. Micro Frontends has gained popularity recently. This kind of architectural pattern helps in breaking down monolithic frontend applications into smaller pieces that are easier to manage. In this blog post, we will go through the basics of Micro Frontends, their benefits, challenges, and implementation strategies, and additionally look at real-world examples that showcase why they have started gaining more relevance day by day in web development.

Understanding Micro Frontend (MFE) and it's Significance

What is a Micro Frontend?

Micro Frontend means a small frontend. It is a way of extending the principles of microservices to front-end development. In monolithic front-end applications, the entire user interface is built in one piece. However, as applications grow larger and more complex, it becomes difficult to maintain them and scale them up. Micro Frontends solves this problem by decomposing the frontend into smaller autonomous units that are responsible for specific features or functionalities.

Micro frontends can be developed, deployed, or scaled individually. They contain logic alongside GUI components allowing teams to work on different parts of an app with no overlap between their activities. These architectures enhance modularity, reusability, and flexibility meaning that complicated frontends can undergo maintenance or evolution without much effort.

Micro Frontend architecture vs Monolithic achitecture

Benefits of Micro Frontend

1. Autonomy and Separation: By breaking down the front end into smaller, self-sufficient components, Micro Frontends promote modularity. Every micro frontend can be independently built, deployed, and updated so that they can work parallel to one another.

2. Expandability: This ensures that required resources are ideally allocated, as well as performance constraints specifically tackled in different sections of the program. Micro Frontends make it possible for groups to scale individual parts of an application independently.

3. Different Technologies: This advances innovation and allows every team to choose what suits them best without being bound by choices made on other parts of the application. Micro Frontends aid in embracing technology diversity where distinct segments of the application may be implemented using various technologies or frameworks that each run on separate programming languages.

4. Incremental Deployments: As such, updates and alterations can then be rolled out incrementally since micro frontends can all be deployed individually allowing for quick iteration cycles which results in a more reactive and agile development cycle with reduced risk of introducing bugs.

5. Independent Teams: These independent teams are therefore able to become responsible for specific features or functionalities. Thus, this fosters a sense

Challenges and Considerations

Although there are many benefits to Micro Frontends, they also have some challenges and considerations.

1. Cross-cutting Concerns: Handling cross-cutting concerns like authentication, routing, and styling across multiple micro frontends can be a challenge. This is something that needs careful coordination with other teams for the sake of consistency and coherence in user experience.

2. Integration Complexity: Developing a single cohesive user interface by integrating multiple micro frontends demands careful planning and coordination. For seamless integration as well as interoperability, teams should establish clear communication channels along with well-defined interfaces.

3. Performance Overhead: With the increasing size and complexity of applications, managing a number of micro frontends has an overhead that affects performance. To ensure minimal overhead and optimum performance, teams need to optimize their build process and deployment procedures very carefully

4. Consistency and Branding: It is not easy to maintain uniformity in branding, design, and user experience across different micro frontends. Identify exact guidelines for designs then institute governance practices so that everything remains consistent when flexibility allows innovation too.

5. Tooling and Infrastructure: However, it might be a requirement to spend on new tooling and infrastructure in order to back the development, deployment, and observation of more than one front-end application that come with Micro Frontends adoption. In this context, teams must analyze their current processes as well as facilities and establish areas worth improvement and capital infusion.

Micro Front-End Implementation Strategies

Micro Frontend Implementation Strategy

There are several implementation strategies for adopting Micro Frontends:

1. Composition at Build Time: Individual micro frontends are built separately and then composed into one application during the building process. This allows for greater optimization and performance but may require more upfront planning and coordination.

2. Composition at Runtime: During runtime, micro-frontends are dynamically composed either on the client side or server side. It provides greater flexibility and agility but might introduce additional overheads and complexity.

3. Hybrid Approach: Many organisation's take a blend of both build-time and runtime composition to balance performance with flexibility and agility.

Real-world Examples

Several companies have successfully adopted Micro Frontends in their development processes:

1. Amazon: Amazon is using a Micro Frontend architecture for running its retail website which allows teams to work independently on features without disrupting users experience as a whole.

2. Spotify: Spotify implemented Micro Frontends so that it could scale up easily on its web player platform which would allow teams to iterate faster and deliver more frequent user updates.

3. Netflix, for instance, applies Micro Frontends to guarantee streaming is seamless and consistent for all devices. By separating its front end into smaller self-managing units, Netflix can move faster in working on personalized experiences for its consumers.


Micro Frontends, however, provides a promising way forward as regards developing front-end software by breaking monolithic applications into more manageable units. In addition, Micro Frontends helps to promote modularity, independence, and scalability which allows teams to work better together and bring value to customers faster. Yet while this approach has its challenges and issues that organisation's having to consider, it is evident that there are many advantages of embracing them as the web development’s growing pattern. Therefore, as organisation's continue to embrace Micro Frontends, care should be taken in their implementation strategies based on experience from case studies to maximise the benefits and reduce the difficulties associated with this method.