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@connectrpc/connect-next
Advanced tools
Connect is a family of libraries for building and consuming APIs on different languages and platforms, and [@connectrpc/connect](https://www.npmjs.com/package/@connectrpc/connect) brings type-safe APIs with Protobuf to TypeScript.
Connect is a family of libraries for building and consuming APIs on different languages and platforms, and @connectrpc/connect brings type-safe APIs with Protobuf to TypeScript.
@connectrpc/connect-next
provides a plugin for Next.js,
the React Framework for the Web.
Provide your Connect RPCs via Next.js API routes. To enable Connect in Next.js, add two files to your project:
.
├── connect.ts
└── pages
└── api
└── [[...connect]].ts
Note: Next.js 13 introduced the new App Router. Your Connect API routes need to be placed in
pages/
, but you can use theapp/
directory for the App Router at the same time.
The new file connect.ts
is where you register your RPCs:
// connect.ts
import { ConnectRouter } from "@connectrpc/connect";
export default function (router: ConnectRouter) {
// implement rpc Say(SayRequest) returns (SayResponse)
router.rpc(ElizaService, ElizaService.methods.say, async (req) => ({
sentence: `you said: ${req.sentence}`,
}));
}
pages/api/[[..connect]].ts
is a Next.js catch-all API route:
// pages/api/[[..connect]].ts
import { nextJsApiRouter } from "@connectrpc/connect-next";
import routes from "../../connect";
const { handler, config } = nextJsApiRouter({ routes });
export { handler as default, config };
With that server running, you can make requests with any Connect or gRPC-Web client.
Note that Next.js serves all your RPCs with the /api
prefix.
curl
with the Connect protocol:
curl \
--header "Content-Type: application/json" \
--data '{"sentence": "I feel happy."}' \
--http2-prior-knowledge \
http://localhost:3000/api/connectrpc.eliza.v1.ElizaService/Say
Node.js with the gRPC-web protocol (using a transport from @connectrpc/connect-node):
import { createClient } from "@connectrpc/connect";
import { createGrpcWebTransport } from "@connectrpc/connect-node";
import { ElizaService } from "./gen/eliza_connect.js";
const transport = createGrpcWebTransport({
baseUrl: "http://localhost:3000/api",
httpVersion: "1.1",
});
const client = createClient(ElizaService, transport);
const { sentence } = await client.say({ sentence: "I feel happy." });
console.log(sentence); // you said: I feel happy.
A client for the web browser actually looks identical to this example - it would
simply use createConnectTransport
from @connectrpc/connect-web
instead.
Note that support for gRPC is limited, since many gRPC clients require HTTP/2,
and Express does not support the Node.js http2
module.
Currently, @connectrpc/connect-next
does not support the Vercel Edge runtime.
It requires the Node.js server runtime, which is used by default when deploying
to Vercel.
To get started with Connect, head over to the docs for a tutorial, or take a look at our example.
FAQs
Connect is a family of libraries for building and consuming APIs on different languages and platforms, and [@connectrpc/connect](https://www.npmjs.com/package/@connectrpc/connect) brings type-safe APIs with Protobuf to TypeScript.
We found that @connectrpc/connect-next demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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