Adding Solid support

Today we're adding another frontend framework to our growing list of supported handlers, Solid. The new handler is fully compatible with the current 0.21 release.

Support for Solid includes server-side rendering (SSR), hydration, layouting, as well as liveview integration. Having recently added hydration, layouts and liveview to React, this brings to three the number of frontend frameworks we fully support.

Install

To install the Solid module, run npm install @primate/solid. Then add it to your Primate configuration.

import solid from "@primate/solid";

export default {
  modules: [
    solid(),
  ],
};

Supporting Solid has been challenging in the sense that like React, it uses JSX components, but unlike React, it uses them slightly differently, calling for a different compiling method to JavaScript. In addition, this is the first time we have encountered potential file extension conflicts, as both handlers use the jsx file extension. To nonetheless allow users to work with both frameworks side by side, we have added an extension option you can pass the Solid handler, to override its jsx default.

import solid from "@primate/solid";

export default {
  modules: [
    solid({
      extension: "solid",
    }),
  ],
};

This would allow you to create Solid components with the solid extension and place them alongside React (jsx) components.

Use

To use a Solid component, create a route under routes. This example assumes you have changed the Solid component file extension to solid.

import view from "primate/handler/view";

const posts = [{
  id: 1,
  title: "First post",
}];

export default {
  get() {
    return view("PostIndex.solid", { posts });
  },
};

Next, create a component in components.

import { For } from "solid-js/web";

export default function (props) {
  return <>
    <h1>All posts</h1>
    <For each={props.data.posts}>
      {post => <h2><a href={`/post/view/${post.id}`}>{post.title}</a></h2>}
    </For>
    <h3><a href="/post/edit/">add post</a></h3>
  </>;
}

Add a layout

Create a +layout.js file alongside your routes (layouts apply to all routes in their directory and its subdirectories, hierarchically).

import view from "primate/handler/view";

export default () => {
  return view("layout.solid", { user: "Tom" });
};

Then add a component for the layout in components.

export default function layout(props) {
  return <>
    <div>Hi, {props.data.user}.</div>
    {props.children}
  </>;
}

Activate liveview

To activate liveview for Solid, turning your app into an SPA and avoiding full page reloads, install and load @primate/liveview.

import solid from "@primate/solid";
import liveview from "@primate/liveview";

export default {
  modules: [
    solid(),
    liveview(),
  ],
};

Fin

If you like Primate, consider joining our channel #primate on irc.libera.chat.

Otherwise, have a blast with Solid!