- GraphQL query abstraction and caching in SSR React projects, improving the performance of your app
- Normalized caching, optimizing memory management to keep your site lightweight and fast
- Fullstack integration, leveraging client-side and server-side caching to streamline your caching strategy
- Support for GraphQL fragments, directives, and variables
- Optional GraphQL DoS attack mitigation security module
Obsidian is Deno's first native GraphQL caching client and server module. Boasting lightning-fast caching and fetching capabilities alongside headlining normalization and destructuring strategies, Obsidian is equipped to support scalable, highly performant applications.
Optimized for use in server-side rendered React apps built with Deno, full stack integration of Obsidian enables many of its most powerful features, including optimized caching exchanges between client and server and extremely lightweight client-side caching.
In the server:
import { ObsidianRouter } from 'https://deno.land/x/obsidian/mod.ts';In the app:
import { ObsidianWrapper } from 'https://deno.land/x/obsidian/clientMod.ts';import { Application, Router } from 'https://deno.land/x/oak/mod.ts';
import { ObsidianRouter, gql } from 'https://deno.land/x/obsidian/mod.ts';
const PORT = 8000;
const app = new Application();
const types = (gql as any)`
// GraphQL type definitions
`;
const resolvers = {
// Resolvers
}
interface ObsRouter extends Router {
obsidianSchema?: any;
}
const GraphQLRouter = await ObsidianRouter<ObsRouter>({
Router,
typeDefs: types,
resolvers: resolvers,
redisPort: 6379,
});
const router = new Router();
router.get('/', handlePage);
function handlePage(ctx: any) {
try {
const body = (ReactDomServer as any).renderToString(<App />);
ctx.response.body = `<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>SSR React App</title>
</head>
<body>
<div id="root">\${body}</div>
<script src="/static/client.tsx" defer></script>
</body>
</html>`;
} catch (error) {
console.error(error);
app.use(GraphQLRouter.routes(), GraphQLRouter.allowedMethods());
await app.listen({ port: PORT });import { ObsidianWrapper } from 'https://deno.land/x/obsidian/clientMod.ts';
const App = () => {
return (
<ObsidianWrapper>
<MovieApp />
</ObsidianWrapper>
);
};import { useObsidian, BrowserCache } from 'https://deno.land/x/obsidian/clientMod.ts';
const MovieApp = () => {
const { query, cache, setCache } = useObsidian();
const [movies, setMovies] = (React as any).useState('');
const queryStr = `query {
movies {
id
title
releaseYear
genre
}
}
`;
return (
<h1>{movies}</h1>
<button
onClick={() => {
query(queryStr)
.then(resp => setMovies(resp.data))
.then(resp => setCache(new BrowserCache(cache.storage)))
}}
>Get Movies</button>
);
};import { useObsidian, BrowserCache } from 'https://deno.land/x/obsidian/clientMod.ts';
const MovieApp = () => {
const { mutate, cache, setCache } = useObsidian();
const [movies, setMovies] = (React as any).useState('');
const queryStr = `mutation {
addMovie(input: {title: "Cruel Intentions", releaseYear: 1999, genre: "DRAMA" }) {
id
title
releaseYear
genre
}
}
`;
return (
<h1>{movies}</h1>
<button
onClick={() => {
mutate(queryStr)
.then(resp => setMovies(resp.data))
.then(resp => setCache(new BrowserCache(cache.storage)))
}}
>Get Movies</button>
);
}Lascaux Engineers
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