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This article introduces the relevant knowledge of "introduction and use Guide of Serverless Component". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

What is Serverless Component and how do I use it?

What is the goal of Serverless Components?

We hope to make it more convenient and smooth for developers to link up with the various services provided by cloud vendors through Serverless Components.

Currently, building an application means that you can pick and manage various SaaS services (such as serverless services), and then integrate them into an applicable solution. This is great because it is faster and less expensive.

But it can also be very complicated. In order to integrate these services, you need a lot of manual configuration, and currently there are not many tools to help you build and manage your own application architecture.

First acquaintance of Serverless Components

The goal of Serverless Components is to change what developers are facing today.

Components provides a unified standard for orchestrating these resources and business codes for the basic services of various cloud vendors / SaaS vendors. Like Lego bricks, you can use multiple Components to build your application very easily.

Serverless Components also provides a comprehensive, community contribution-driven developer ecology. You can easily browse and optimize these Components. The end result is that you can greatly save development time, instead of building your Full Stack application from scratch, you can use existing components to quickly build and adapt to your own needs.

Serverless Components operation mechanism

Let's take a look at how to use Serverless Components to quickly build a complete Serverless application.

Unified experienc

All cloud services can be encapsulated as a Serverless Component.

Each Component supports the creation, rollback and removal of corresponding cloud services, which can be implemented through Serverless Components CLI.

Developers only need to configure Components to provide the minimum configuration required for the service, and the rest will be provided in the default configuration. This makes it easier to create the corresponding resources. When you reference a Component, you only need to add the "components" attribute to the serverless.yml file and reference the Component, as shown in the figure.

As shown above, you can create a bucket resource for object storage by running the serverless command.

Combine higher-dimensional Components

Suppose you want to deploy an Express.js framework based on Serverless architecture in Tencent Cloud. To build this framework, you need to create a new API in the API gateway service, and use this API to call the cloud function service. In order to complete the basic data operations, you also need to create, connect and call the database service (assuming PostgreSQL) to add, delete, modify and query.

We currently support all the Components required by the framework. Each component can be configured with very simple parameters, and you can orchestrate the underlying cloud resources according to these configurations, and deploy the service quickly and easily.

All Serverless Components can be combined to form a larger, more feature-rich Component.

We combine these three basic Components (PostgreSQL, API Gateway, SCF) to form an Express.js framework, and they will form a new, higher-dimensional Express Component. As shown in the figure, these configurations are also reflected in the serverless.yml file.

According to this picture, we can see the value of Components. When you build an Express framework, you need to do a lot of preparatory work, you need to activate and configure a lot of products, such as creating functions, configuring REST API, configuring and connecting DB, etc.

But in fact you can save a lot of similar configuration work by abstracting these basic Components, and Express.js framework components can be deployed with many default configurations and expose only the simplest, business-oriented configuration items.

In addition, you can reuse this Express Component in other projects. Or other developers can use it in their own projects and simply adjust the configuration according to their own business. For example, they may modify the path of REST API or the supported protocols, etc.

In the end, these higher-dimensional Components become a variety of common scenarios that can be quickly used and reused and integrated by developers.

Composing Components to build the whole application

Now let's look at the Express framework from a broader perspective. When you want to deploy the entire application, the requirements become more complex and comprehensive. For example, you need to isolate dynamic and static resources, optimize page access speed, provide richer API, and so on.

Don't worry, you can still use Serverless Components to further expand and improve your application. You only need to combine this high-dimensional Component with more other Components to build a more complete application. As shown in the following figure, a complete Full-Stack application can be implemented by continuously combining Serverless Components.

Like all other Components, other developers can easily reuse this Full-Stack component and only need to expose the simplest configuration information.

We believe that Serverless revolves around the scenario and does not require too much configuration and management of the underlying resources. We hope that Components will make the infrastructure more transparent to developers, who can focus on business logic and scenarios, and make these scenarios shareable and reusable through the open source community, while further promoting developer ecology.

Are you ready to experience Serverless Components?

We just demonstrated the deployment of a full-stack application. If you want to learn more about Components, you are welcome to visit Serverless Components's Github home page and check out the currently supported scenario templates.

We currently provide several basic Components, you can flexibly combine them, and create your own high-dimensional application scenarios. We welcome open source contributions to the Serverless Components repository and look forward to developer suggestions and feedback!

This is the end of the introduction and use Guide to Serverless Component. Thank you for your reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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