Get started with Gatsby

To automatically render all Plasmic-defined pages at the routes specified in Plasmic, specify a Gatsby template page:

gatsby-config.js
Copy
module.exports = {
  // ...
  plugins: [
    {
      resolve: '@plasmicapp/loader-gatsby',
      options: {
        // ...
      },
      options: {
        projects: [
          {
            id: 'PROJECTID', // ID of a project you are using
            token: 'APITOKEN' // API token for that project
          }
        ],
        defaultPlasmicPage: require.resolve('./src/templates/defaultPlasmicPage.tsx'),
        // Optionally specify pages to ignore.
        ignorePaths: ['/my-page']
      }
    }
  ]
};

And create the template, editing it with any wrappers you want:

src/templates/defaultPlasmicPage.tsx
Copy
import React from 'react';
import { initPlasmicLoader, PlasmicComponent, PlasmicRootProvider } from '@plasmicapp/loader-gatsby';
import { graphql } from 'gatsby';

// You can use any library you want for <head/> injection
import { Helmet } from 'react-helmet';

export const query = graphql`
  query ($path: String) {
    plasmicComponents(componentNames: [$path])
    plasmicOptions
  }
`;

const PlasmicGatsbyPage = ({ location, data }) => {
  const { plasmicComponents, plasmicOptions } = data;
  const pageMeta = plasmicComponents.entryCompMetas[0];
  const pageMetadata = pageMeta.pageMetadata;
  return (
    <PlasmicRootProvider
      loader={initPlasmicLoader(plasmicOptions)}
      prefetchedData={plasmicComponents}
      pageParams={pageMeta.params}
      pageQuery={Object.fromEntries(new URLSearchParams(location.search))}
      Head={Helmet}
    >
      <Helmet>
        {pageMetadata.title && <title>{pageMetadata.title}</title>}
        {pageMetadata.title && <meta property="og:title" content={pageMetadata.title} />}
        {pageMetadata.description && <meta property="og:description" content={pageMetadata.description} />}
        {pageMetadata.openGraphImageUrl && <meta property="og:image" content={pageMetadata.openGraphImageUrl} />}
      </Helmet>
      <PlasmicComponent component={pageMeta.displayName} />
    </PlasmicRootProvider>
  );
};

export default PlasmicGatsbyPage;

If your project has dynamic pages, you will need to manually add your dynamic routes to your gatsby-node.ts. Learn more about dynamic pages.

We use Gatsby’s GraphQL layer to fetch the design statically.

For example, to render a page: add a file under src/pages/, named for your desired route, with the following code.

src/pages/my-page.tsx
Copy
// This page will show up at the route /my-page

import React from "react";
import {
  PlasmicComponent,
  PlasmicRootProvider,
  initPlasmicLoader,
} from "@plasmicapp/loader-gatsby";
import { graphql } from 'gatsby';

// You can use any library you want for <head/> injection
import { Helmet } from 'react-helmet';

// Statically fetch the data needed to render Plasmic pages or components.
// You can pass in multiple page paths or component names.
export const query = graphql`
  query {
    plasmicComponents(componentNames: ["COMPONENTNAME"])
    plasmicOptions
  }
`;

// Render the page or component from Plasmic.
export default const MyPage = ({ data, location, params }) => {
  const { plasmicComponents, plasmicOptions } = data;
  return (
    <PlasmicRootProvider
      loader={initPlasmicLoader(plasmicOptions)}
      prefetchedData={plasmicComponents}
      pageParams={params}
      pageQuery={Object.fromEntries(new URLSearchParams(location.search))}
      Head={Helmet}
    >
      <PlasmicComponent component="COMPONENT_OR_PAGEROUTE" />
    </PlasmicRootProvider>
  );
};

Let your Plasmic Studio users drag/drop and visually manipulate any React component! Learn more.

Step 1

Create a simple example React component:

import React, { ReactNode } from 'react';

export interface HelloWorldProps {
  children?: ReactNode;
  className?: string;
  verbose?: boolean;
}

export function HelloWorld({ children, className, verbose }: HelloWorldProps) {
  return (
    <div className={className} style={{ padding: '20px' }}>
      <p>Hello there! {verbose && 'Really nice to meet you!'}</p>
      <div>{children}</div>
    </div>
  );
}

Step 2

Create a module src/plasmic-init.ts that extracts initPlasmicLoader centrally:

src/plasmic-init.ts
Copy
import { initPlasmicLoader } from '@plasmicapp/loader-gatsby';
import { HelloWorld } from './components/HelloWorld';

export function initPlasmicLoaderWithRegistrations(plasmicOptions: any) {
  const PLASMIC = initPlasmicLoader(plasmicOptions);
  // Add all your code component registrations here.
  PLASMIC.registerComponent(HelloWorld, {
    name: 'HelloWorld',
    props: {
      verbose: 'boolean',
      children: 'slot'
    }
  });
  return PLASMIC;
}

Now replace all other calls to initPlasmicLoader with initPlasmicLoaderWithRegistrations. For instance, if you’re auto-loadng all Plasmic pages in src/templates/defaultPlasmicPage.tsx:

src/templates/defaultPlasmicPage.tsx
Copy
// You can use any library you want for <head/> injection
import { Helmet } from 'react-helmet';

import { initPlasmicLoaderWithRegistrations } from '../plasmic-init';
// ...

const PlasmicGatsbyPage = ({ location, data }) => {
  const { plasmicComponents, plasmicOptions } = data;
  return (
    <PlasmicRootProvider
      loader={initPlasmicLoaderWithRegistrations(plasmicOptions)}
      prefetchedData={plasmicComponents}
      Head={Helmet}
    >
      {/* ... */}
    </PlasmicRootProvider>
  );
};

// ...

Step 3

Create a host page at route /plasmic-host:

src/pages/plasmic-host.tsx
Copy
import * as React from 'react';
import { PlasmicCanvasHost } from '@plasmicapp/loader-gatsby';
import { initPlasmicLoaderWithRegistrations } from '../plasmic-init';
import { graphql } from 'gatsby';

export const pageQuery = graphql`
  query {
    plasmicOptions
  }
`;

export default function Host({ data }) {
  const { plasmicOptions } = data;
  initPlasmicLoaderWithRegistrations(plasmicOptions);
  return <PlasmicCanvasHost />;
}

We also need to update gatsby-ssr.js to remove HMR for the /plasmic-host route:

gatsby-ssr.js
Copy
const React = require('react');

const HeadComponents = [
  <script
    key="plasmic-hmr"
    type="text/javascript"
    dangerouslySetInnerHTML={{
      __html: `
        if (typeof window !== "undefined" && /\\/plasmic-host\\/?$/.test(window.location.pathname)) {
          const RealEventSource = window.EventSource;
          window.EventSource = function(url, config) {
            if (/[^a-zA-Z]hmr($|[^a-zA-Z])/.test(url)) {
              console.warn("Plasmic: disabled EventSource request for", url);
              return {
                onerror() {}, onmessage() {}, onopen() {}, close() {}
              };
            } else {
              return new RealEventSource(url, config);
            }
          }
        }
      `
    }}
  />
];

const isProduction = process.env.NODE_ENV === 'production';

exports.onRenderBody = ({ pathname, setHeadComponents }) => {
  /**
   * We add the preamble tag script to all pages during development mode
   * because during development all pages are dynamically rendered based
   * on `/` route, during production we add it only in `/plasmic-host/`
   */
  if (!isProduction || pathname === '/plasmic-host/') {
    setHeadComponents(HeadComponents);
  }
};

Step 4

Start your app:

npm run start

And check that you see a confirmation message at http://localhost:8000/plasmic-host.

Step 5

Open https://studio.plasmic.app, click the menu for the current project, select "Configure project," and set it to http://localhost:8000/plasmic-host.

Step 6

Re-open this project (or reload this tab) to see your component listed in the insert menu!

Later, after you deploy the route to production, update the project to use your production host URL instead, such as https://my-app.com/plasmic-host. This way, other members of your team (who can’t access your localhost dev server) will be able to open and edit the project in Plasmic. (Again, the /plasmic-host route itself is a special hidden route not meant for humans to visit; it is only for Plasmic Studio to hook into.)

Learn more about code components.