The following article will guide you How to build a component monorepo library with React components. Develop, build, test, version, pack and publish each component …
Sharing components between different repositories and projects is very effective for code reuse. In the case of UI components, it’s also an effective way to make sure your UI stays consistent across different applications.
But, sharing components can also be a challenge as trying to publish each component would force us to split our repository into multiple repositories and publish each component individually. So, sometimes it’s better to keep all components in one single repository and still publish each individually. This architecture is often referred to as a multi-package repository or monorepo.
Great aid tools like Lerna can help automate some of the overhead around a multi-package monorepo, like versioning and publishing each package. However, it still requires a lot of overhead since each package still needs to be boilerplated and maintained just like it was a standalone repository.
When it comes to a multi-component library, this overhead can be heavy, so it’s rare to see such a library refactoring in order to publish each component.
In this post, we’ll see how you can get the same results without the overhead, by leveraging Bit’s ability to isolate, version and publish components as packages from an existing library- with zero refactoring or overhead.
Furthermore, you will be able to isolate the components in the repo so that you can build, test and version each of them separately in full isolation. Since Bit controls the relationships between the components, you can update a component and bump a version only for that component and the components depending on it. This means that not only you can publish individual packages from the repo, but you gain modular control over its development.
For any questions, please don’t hesitate to comment or reach out.
Here is a very nice open-source component library called React foundation*. *Using Bit, and with 0 refactoring at all, each of its components was published as a standalone package. You can view and install them in this collection.
Bit’s open-source CLI-tool lets you virtualize the isolation of components in the repository. This is done using the
<a href="https://docs.bit.dev/docs/add-and-isolate-components.html" target="_blank">bit add</a> command, which points Bit to paths in the repository where the components are located.
Bit will then automatically define and encapsulate every component with all its dependencies, turning it into a standalone unit that can be built, tested and run outside of the project in isolation. This process automatically creates a
package.json file for every component, which will Bit will help manage and update upon detected changes to the component’s dependencies.
Since each component should be built and tested on its own, Bit lets you link a compiler and tester to all the components in your project’s workspace. You can also choose to link a testing environment to run each component’s unit-tests. By running the
bit build and
bit test commands, you can then build and test each component in full, true isolation from the rest of the project.
bit tag command you can version the components in the repo with semver rules. Now, each component is given a version that can be indecently bumped when there are changes to the component itself. No need to update a version for the button component when you only change an unrelated component like a slider. But, if you change a component that has other components depending on it, a Bit will prompt you to update the dependent components as well (it reads the
This means that any moment you can run
bit status to learn which components are tracked and encapsulated in the repo, which are modified and needs a version update (or which has dependencies updated and needs to be updated too), and so on. And, obviously, there are symlinks too :)
When ready, you can publish all the components as individual packages, which can be separately consumed and updated in other projects.
The experience you get for developing the repository is that with 0 to very little refactoring you can instantly isolate, build, test, version and publish each component in the repository separately. When changes are made to a component, Bit lets you view, learn and control exactly which other components are affected and choose if you want to update all at once.
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Let’s assume the following library structure.
├── package.json ├── src │ ├── components │ │ ├── Accordion │ │ │ ├── Accordion-spec.js │ │ │ ├── Accordion.js │ │ │ ├── Acordion.module.scss │ │ │ ├── index.js │ │ ├── Button │ │ │ ├── Button-spec.js │ │ │ ├── Button.js │ │ │ ├── Button.module.scss │ │ │ ├── index.js
In this case, we’d like to individually version and publish
accordion and all other components in the
Using Bit, we can virtually encapsulate these components without having to refactor the repository at all, or boilerplate each of them as a package.
First, let’s initialize a Bit workspace for the repository and commit the newly created
.bitmap file to Git so the two can be synced in harmony.
$ bit init$ git add .bitmap $ git commit -am "initialized an emtpy bit workspace" [master a4eddaa] bit initialized for project 2 files changed, 11 insertions(+) create mode 100644 .bitmap
We’re now set to start versioning and publishing components.
bit add command tells Bit to track components in a specific directory. It bundles all the files of each component as part of the component and will analyze the code of each component to define all its dependencies. You can see that Bit creates a
package.json for each component that you can view as part of the component. In this example, let’s run it like this:
$ bit add src/components/*
Bit will write to its models all the data of the components (run
bit show to view each component’s dependency graph, and
bit status to learn that Bit successfully identified all files and dependencies for each component). If some are missing, you will need to
bit add them separately.
Next, let’s define a compiler that can build the code into files that can run in other projects. You can find all the available compilers here. In this case (React library), let’s choose the React compiler and install it in the workspace.
$ bit import bit.envs/compilers/react
Bit will apply this compiler to all the components in the workspace, which means you save overhead for defining the configurations of each component.
Next, let’s set a version for every component. Versioning component independently is very useful when issuing updates to separate components, and for cross-repository component sharing and development (see below). For now, let’s set all components to version 0.0.1.
$ bit tag --all 0.0.1
Great! Our components are ready for export. Next, let’s
bit export them to the bit.dev collection you’ve created earlier. Note that Bit is distributed and you can host components on any server, but bit.dev provides a registry from which you can install each component as a package. It also provides features for rendering, searching and collaborating over components.
$ bit export user-name.collection-name
And that’s it! You can now browse the collection, save examples for each component (which will also show up as snapshots in the collection) and- install each of them as an independent package with the NPM and **Yarn **clients from the bit.dev registry. No refactoring needed, no overhead.
Once your components are published, they become available in the bit.dev component hub, which also functions as a registry from which you can install components using package managers like npm and yarn.
The bit.dev component hub also provides discoverability for your components via a components search-engine and visual collections with preview snapshots. Each component’s example is rendered, and its API docs are auto-extracted and presented in the component page so you can learn how it works.
To install a component, just use the command in the installation pane in the component page.
Note that if you haven’t installed Bit and run the
bit login command, you will first need to configure bit.dev as a scoped npm registry. If you run
bit login first, there’s no need to do that.
npm config set '@bit:registry' https://node.bit.dev
Then, just run the install command from the new project you’d like to consume the component in.
npm i @bit/primefaces.primereact.chart # or yarn add @bit/primefaces.primereact.chart
And that’s it. Your component is now individually installed as a package dependency in the new project and can be used like any other package. Since you only install the component you need, you avoided installing the whole library and prevented redundant weight and dependencies in the project.
Without having to publish or update the whole library, and without context switching!
When you publish many components from your library, people can choose and consume individual components in their projects. That’s useful, but in some cases, people will still need to make changes to the component before using it. It’s best to avoid context-switching for doing so.
Using Bit, you can bring the source-code of every component right into a new project and make the changes you need. Since Bit will still manage the “cloned” component, changes can be versioned, published and even updated back to the original project or other projects.
This means people can adopt the components without having to dive-in to the whole library to suggest a pull request, which might or might not be accepted.
To bring a component’s code into a different project and edit it, use the
bit import command that appears in the same pane in the component page. Note that you should have Bit installed and a bit workspace initialized in the consuming repository to do that, so Bit can track and manage changes.
bit import primefaces.primereact/chart
Then, just make your changes, run
bit tag again and
bit export the new version. If you run
bit status, bit will show you that the component is changed and which other components are affected by the changes too and should be updated. No need to update everything else, Bit lets you control the dependency graph of each component to easily update only what you need.
When you are building a component library and want to use its components in different projects or applications, you can leverage tooling like Bit to develop components in isolation in the library, while controlling their dependency graph and being able to build, test, version and publish each component.
By making them discoverable and letting other people install and even update individual components in their own projects, you increase the adoption of your components which helps to standardize your development across repositories and keep your UI consistent across apps for your users.
Originally published by **Jonathan Saring **at blog.bitsrc.io
If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?
In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.
Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.
Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.
The popularity of React Native comes from its advantages. Some of its advantages are as follows:
Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.
React Native is very close to native. Consider the following aspects as described on the React Native website:
Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.
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React Starter Kit is an opinionated boilerplate for web development built on top of Node.js, Express, GraphQL and React, containing modern web development tools such as Webpack, Babel and Browsersync. Helping you to stay productive following the best practices. A solid starting point for both professionals and newcomers to the industry.
master branch of React Starter Kit doesn't include a Flux implementation or any other advanced integrations. Nevertheless, we have some integrations available to you in feature branches that you can use either as a reference or merge into your project:
You can see status of most reasonable merge combination as PRs labeled as
If you think that any of these features should be on
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Since March 2020 reached 556 million monthly downloads have increased, It shows that React JS has been steadily growing. React.js also provides a desirable amount of pliancy and efficiency for developing innovative solutions with interactive user interfaces. It’s no surprise that an increasing number of businesses are adopting this technology. How do you select and recruit React.js developers who will propel your project forward? How much does a React developer make? We’ll bring you here all the details you need.
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React is adaptable. It can be conveniently paired with various state administrators (e.g., Redux, Flux, Alt or Reflux) and can be used to implement a number of architectural patterns.
Is there a market for React.js programmers?
The need for React.js developers is rising at an unparalleled rate. React.js is currently used by over one million websites around the world. React is used by Fortune 400+ businesses and popular companies such as Facebook, Twitter, Glassdoor and Cloudflare.
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