vite-plugin-react-server
Version:
Vite plugin for React Server Components (RSC)
86 lines (83 loc) • 11.6 kB
JavaScript
/**
* vite-plugin-react-server
* Copyright (c) Nico Brinkkemper
* MIT License
*/
import { cleanupServerAction } from '../dev-server/cleanupServerAction.client.js';
import { toError } from '../error/toError.js';
import { logError } from '../error/logError.js';
import { PassThrough } from 'node:stream';
import { parseServerActionRequestBody, setupServerActionHeaders, createServerActionResponse } from './handleServerActionHelper.js';
export { parseServerActionRequest } from './handleServerActionHelper.js';
function createServerActionStream(res) {
const passThrough = new PassThrough();
passThrough.pipe(res, { end: true });
passThrough.on("end", () => {
res.end();
});
return passThrough;
}
function handleServerActionError(error, res, logger) {
const err = toError(error);
logError(err, logger);
res.statusCode = 500;
res.end(JSON.stringify(createServerActionResponse(void 0, err.message)));
}
async function handleServerAction(req, res, options) {
if (!options.worker) {
throw new Error("Worker is required for client-side server actions");
}
let messageHandler = null;
const passThrough = createServerActionStream(res);
try {
const chunks = [];
for await (const chunk of req) {
chunks.push(chunk);
}
const body = Buffer.concat(chunks).toString();
const { id, args } = parseServerActionRequestBody(body, req.url);
setupServerActionHeaders(res);
options.worker.postMessage({
type: "SERVER_ACTION",
id,
args
});
messageHandler = (message) => {
if (message.type === "RSC_CHUNK") {
passThrough.write(message.chunk);
} else if (message.type === "RSC_END") {
if (messageHandler) {
cleanupServerAction(passThrough, options.worker, messageHandler, res);
}
} else if (message.type === "ERROR") {
if (messageHandler) {
cleanupServerAction(
passThrough,
options.worker,
messageHandler,
res,
message.error,
options.logger
);
}
}
};
options.worker.on("message", messageHandler);
passThrough.on("error", (error) => {
if (messageHandler) {
cleanupServerAction(
passThrough,
options.worker,
messageHandler,
res,
error,
options.logger
);
}
});
} catch (error) {
handleServerActionError(error, res, options.logger);
}
}
export { createServerActionResponse, createServerActionStream, handleServerAction, handleServerActionError, parseServerActionRequestBody, setupServerActionHeaders };
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"file":"handleServerAction.client.js","sources":["../../../plugin/helpers/handleServerAction.client.ts"],"sourcesContent":["import type { Logger } from \"vite\";\nimport type { IncomingMessage, ServerResponse } from \"node:http\";\nimport type { Worker } from \"node:worker_threads\";\nimport type { RscWorkerInputMessage } from \"../worker/rsc/types.js\";\nimport type { MessageHandler } from \"../types.js\";\nimport { cleanupServerAction } from \"../dev-server/cleanupServerAction.client.js\";\nimport { logError, toError } from \"../error/index.js\";\nimport { PassThrough } from \"node:stream\";\nimport type {\n  ServerActionHandlerOptions,\n} from \"./handleServerActionHelper.js\";\nimport { parseServerActionRequestBody, createServerActionResponse, setupServerActionHeaders } from \"./handleServerActionHelper.js\";\n\n// Use shared helper instead of duplicating logic\n\n// Use shared helper instead of duplicating logic\n\n/**\n * Creates a pass-through stream for server action responses.\n */\nexport function createServerActionStream(res: ServerResponse): PassThrough {\n  const passThrough = new PassThrough();\n  passThrough.pipe(res, { end: true });\n  passThrough.on('end', () => {\n    res.end();\n  });\n  return passThrough;\n}\n\n/**\n * Handles errors in server action processing.\n */\nexport function handleServerActionError(error: unknown, res: ServerResponse, logger?: Logger) {\n  const err = toError(error);\n  logError(err, logger);\n  res.statusCode = 500;\n  res.end(JSON.stringify(createServerActionResponse(undefined, err.message)));\n}\n\n/**\n * Client-side server action handler that delegates to worker\n */\nexport async function handleServerAction(\n  req: IncomingMessage,\n  res: ServerResponse,\n  options: ServerActionHandlerOptions & { worker?: Worker }\n): Promise<void> {\n  if (!options.worker) {\n    throw new Error(\"Worker is required for client-side server actions\");\n  }\n\n  let messageHandler: MessageHandler<any> | null = null;\n  const passThrough = createServerActionStream(res);\n\n  try {\n    // Read request body\n    const chunks: Buffer[] = [];\n    for await (const chunk of req) {\n      chunks.push(chunk);\n    }\n    const body = Buffer.concat(chunks).toString();\n\n    // Parse the server action request\n    const { id, args } = parseServerActionRequestBody(body, req.url);\n\n    // Set up response headers\n    setupServerActionHeaders(res);\n\n    // Send server action request to worker\n    options.worker.postMessage({\n      type: \"SERVER_ACTION\",\n      id,\n      args,\n    } satisfies RscWorkerInputMessage);\n\n    // Handle worker messages\n    messageHandler = (message: any) => {\n      if (message.type === \"RSC_CHUNK\") {\n        passThrough.write(message.chunk);\n      } else if (message.type === \"RSC_END\") {\n        if (messageHandler) {\n          cleanupServerAction(passThrough, options.worker!, messageHandler, res);\n        }\n      } else if (message.type === \"ERROR\") {\n        if (messageHandler) {\n          cleanupServerAction(\n            passThrough,\n            options.worker!,\n            messageHandler,\n            res,\n            message.error,\n            options.logger\n          );\n        }\n      }\n    };\n\n    options.worker.on(\"message\", messageHandler);\n\n    // Handle errors\n    passThrough.on(\"error\", (error: unknown) => {\n      if (messageHandler) {\n        cleanupServerAction(\n          passThrough,\n          options.worker!,\n          messageHandler,\n          res,\n          error,\n          options.logger\n        );\n      }\n    });\n  } catch (error) {\n    handleServerActionError(error, res, options.logger);\n  }\n}\n\n/**\n * Client-side ViteDevServer-specific handler that delegates to worker\n */\nexport async function handleServerActionWithViteServer(\n  req: IncomingMessage,\n  res: ServerResponse,\n  server: any,\n  handlerOptions: {\n    verbose?: boolean;\n    projectRoot: string;\n    worker?: Worker;\n  }\n): Promise<void> {\n  return handleServerAction(req, res, {\n    projectRoot: handlerOptions.projectRoot,\n    verbose: handlerOptions.verbose,\n    logger: server.config.customLogger || server.config.logger,\n    worker: handlerOptions.worker,\n  });\n}\n\n// Re-export helper functions for the entry point\nexport { \n  parseServerActionRequest,\n  parseServerActionRequestBody,\n  createServerActionResponse, \n  setupServerActionHeaders \n} from \"./handleServerActionHelper.js\"; 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