SolidJS tRPC

Getting Started

I recommend using Create JD App but if you want to create a project from scratch, you can follow the steps below:

Installation

npm install solid-trpc @tanstack/solid-query

Creating A Client

// utils/trpc.ts
import { IAppRouter } from "api/src/routers/_route"; // your trpc appRouter type
import { createSolidQueryHooks } from "solid-trpc";

export const trpc = createSolidQueryHooks<IAppRouter>();
export const client = trpc.createClient({
  url: "/api/trpc", // your trpc server url
});

TRPC Provider

// App.tsx
import { QueryClient } from "@tanstack/solid-query";
import { Component } from "solid-js";
import { TRPCProvider } from "solid-trpc";
import { client } from "./utils/trpc"; // the client we created above
import Home from "./pages/Home"; // any page that uses trpc

interface IAppProps {}

const queryClient = new QueryClient();
const App: Component<IAppProps> = ({}) => {
  return (
    <TRPCProvider client={client} queryClient={queryClient}>
      <Home />
    </TRPCProvider>
  );
};

export default App;

Queries

// pages/Home.tsx
import { Component } from "solid-js";
import { trpc } from "../../utils/trpc";

interface IHomeProps {}

const Home: Component<IHomeProps> = ({}) => {
  const test = trpc.createQuery(() => ["example.test", { name: "example" }]);

  return (
    <div>
      <h1>{test.data ?? "no data || yet"}</h1>
    </div>
  );
};

export default Home;

Mutations

// pages/Home.tsx
import { Component, onMount } from "solid-js";
import { trpc } from "../../utils/trpc";

interface IHomeProps {}

const Home: Component<IHomeProps> = ({}) => {
  const test = trpc.createMutation(() => "example.mTest");

  onMount(() => {
    test.mutateAsync({ number: 3 });
  });

  return (
    <div>
      <h1>{test.data ?? "no data || yet"}</h1>
    </div>
  );
};

export default Home;

What is different

• No SSR
• Replace "use" with "create" (e.g. useQuery -> createQuery)
• Query paths (key and input) are being treated as Solid Accessor (callback) instead of a string (eg: useQuery(["MyKey", {...}]) -> createQuery(()=> ["MyKey", {...}]))