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|
import type { CreatePreviewServer } from 'astro';
import { AstroError } from 'astro/errors';
import type http from 'node:http';
import { fileURLToPath } from 'node:url';
import { getNetworkAddress } from './get-network-address.js';
import { createServer } from './http-server.js';
import type { createExports } from './server.js';
const preview: CreatePreviewServer = async function ({
client,
serverEntrypoint,
host,
port,
base,
logger,
}) {
type ServerModule = ReturnType<typeof createExports>;
type MaybeServerModule = Partial<ServerModule>;
let ssrHandler: ServerModule['handler'];
try {
process.env.ASTRO_NODE_AUTOSTART = 'disabled';
const ssrModule: MaybeServerModule = await import(serverEntrypoint.toString());
if (typeof ssrModule.handler === 'function') {
ssrHandler = ssrModule.handler;
} else {
throw new AstroError(
`The server entrypoint doesn't have a handler. Are you sure this is the right file?`
);
}
} catch (err) {
if ((err as any).code === 'ERR_MODULE_NOT_FOUND') {
throw new AstroError(
`The server entrypoint ${fileURLToPath(
serverEntrypoint
)} does not exist. Have you ran a build yet?`
);
} else {
throw err;
}
}
const handler: http.RequestListener = (req, res) => {
ssrHandler(req, res);
};
const baseWithoutTrailingSlash: string = base.endsWith('/')
? base.slice(0, base.length - 1)
: base;
function removeBase(pathname: string): string {
if (pathname.startsWith(base)) {
return pathname.slice(baseWithoutTrailingSlash.length);
}
return pathname;
}
const server = createServer(
{
client,
port,
host,
removeBase,
},
handler
);
const address = getNetworkAddress('http', host, port);
if (host === undefined) {
logger.info(
`Preview server listening on \n local: ${address.local[0]} \t\n network: ${address.network[0]}\n`
);
} else {
logger.info(`Preview server listening on ${address.local[0]}`);
}
return server;
};
export { preview as default };
|
