diff options
Diffstat (limited to 'packages/integrations/node/src/preview.ts')
-rw-r--r-- | packages/integrations/node/src/preview.ts | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/packages/integrations/node/src/preview.ts b/packages/integrations/node/src/preview.ts new file mode 100644 index 000000000..33c2f18e2 --- /dev/null +++ b/packages/integrations/node/src/preview.ts @@ -0,0 +1,54 @@ +import type { CreatePreviewServer } from 'astro'; +import type { createExports } from './server'; +import http from 'http'; +import { fileURLToPath } from 'url'; +import { createServer } from './http-server.js'; + +const preview: CreatePreviewServer = async function({ + client, + serverEntrypoint, + host, + port, +}) { + 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 Error(`The server entrypoint doesn't have a handler. Are you sure this is the right file?`); + } + } catch(_err) { + throw new Error(`The server entrypoint ${fileURLToPath} does not exist. Have you ran a build yet?`); + } + + const handler: http.RequestListener = (req, res) => { + ssrHandler(req, res, (ssrErr: any) => { + if (ssrErr) { + res.writeHead(500); + res.end(ssrErr.toString()); + } else { + res.writeHead(404); + res.end(); + } + }); + }; + + const server = createServer({ + client, + port, + host, + }, handler); + + // eslint-disable-next-line no-console + console.log(`Preview server listening on http://${host}:${port}`); + + return server; +} + +export { + preview as default +}; |