@connectrpc/connect-node
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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.
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JavaScript
// Copyright 2021-2025 The Connect Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import { Code, ConnectError, createConnectRouter } from "@connectrpc/connect";
import { uResponseNotFound } from "@connectrpc/connect/protocol";
import { universalRequestFromNodeRequest, universalResponseToNodeResponse, } from "./node-universal-handler.js";
import { compressionBrotli, compressionGzip } from "./compression.js";
/**
* Create a Node.js request handler from a ConnectRouter.
*
* The returned function is compatible with http.RequestListener and its equivalent for http2.
*/
export function connectNodeAdapter(options) {
var _a;
if (options.acceptCompression === undefined) {
options.acceptCompression = [compressionGzip, compressionBrotli];
}
const router = createConnectRouter(options);
options.routes(router);
const prefix = (_a = options.requestPathPrefix) !== null && _a !== void 0 ? _a : "";
const paths = new Map();
for (const uHandler of router.handlers) {
paths.set(prefix + uHandler.requestPath, uHandler);
}
return function nodeRequestHandler(req, res) {
var _a, _b, _c, _d;
// Strip the query parameter when matching paths.
const uHandler = paths.get((_b = (_a = req.url) === null || _a === void 0 ? void 0 : _a.split("?", 2)[0]) !== null && _b !== void 0 ? _b : "");
if (!uHandler) {
((_c = options.fallback) !== null && _c !== void 0 ? _c : fallback)(req, res);
return;
}
const uReq = universalRequestFromNodeRequest(req, res, undefined, (_d = options.contextValues) === null || _d === void 0 ? void 0 : _d.call(options, req));
uHandler(uReq)
.then((uRes) => universalResponseToNodeResponse(uRes, res))
.catch((reason) => {
if (ConnectError.from(reason).code == Code.Aborted) {
return;
}
// eslint-disable-next-line no-console
console.error(`handler for rpc ${uHandler.method.name} of ${uHandler.service.typeName} failed`, reason);
});
};
}
const fallback = (request, response) => {
response.writeHead(uResponseNotFound.status);
response.end();
};