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Gracefully handle exceptions during hot module reloading #133

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30 changes: 19 additions & 11 deletions packages/vite-plugin-node/src/server/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -46,17 +46,25 @@ export const createMiddleware = async (
const requestHandler = getRequestHandler(config.adapter);

async function _loadApp(config: VitePluginNodeConfig) {
const appModule = await server.ssrLoadModule(config.appPath);
let app = appModule[config.exportName!];
if (!app) {
logger.error(
`Failed to find a named export ${config.exportName} from ${config.appPath}`,
);
process.exit(1);
} else {
// some app may be created with a function returning a promise
app = await app;
return app;
try {
const appModule = await server.ssrLoadModule(config.appPath);
let app = appModule[config.exportName!];
if (!app) {
logger.error(
`Failed to find a named export ${config.exportName} from ${config.appPath}`,
);
process.exit(1);
} else {
// some app may be created with a function returning a promise
app = await app;
return app;
}
} catch(e) {
if (config.reloadAppOnFileChange) {
logger.error("Loading app has failed. Waiting for an update.")
} else {
throw e
}
}
}

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