snapshot of https://github.com/TanStack/query.git (main, 2026-09-16; blobs > 131072B omitted)

examples/lit/ssr/config/ports.js

@@ -0,0 +1,63 @@
+const DEFAULT_SSR_HOST = '127.0.0.1'
+const DEFAULT_SSR_PORT = 4174
+
+function normalizeUrlHost(host) {
+  if (host.includes(':') && !host.startsWith('[') && !host.endsWith(']')) {
+    return `[${host}]`
+  }
+
+  return host
+}
+
+function resolvePort(name, fallback) {
+  const value = process.env[name]
+  if (!value) {
+    return fallback
+  }
+
+  const parsedPort = Number.parseInt(value, 10)
+  const isValidPort =
+    Number.isInteger(parsedPort) && parsedPort > 0 && parsedPort <= 65_535
+
+  if (!isValidPort) {
+    throw new Error(
+      `Invalid ${name} "${value}". Expected an integer between 1 and 65535.`,
+    )
+  }
+
+  return parsedPort
+}
+
+export const SSR_PORT = resolvePort('SSR_PORT', DEFAULT_SSR_PORT)
+export const SSR_HOST = process.env.SSR_HOST ?? DEFAULT_SSR_HOST
+
+function resolveConnectHost(host) {
+  if (host === '0.0.0.0') {
+    return '127.0.0.1'
+  }
+
+  if (host === '::') {
+    return '[::1]'
+  }
+
+  return normalizeUrlHost(host)
+}
+
+function resolvePublicOrigin(host, port) {
+  const explicitOrigin = process.env.SSR_PUBLIC_ORIGIN
+  if (explicitOrigin) {
+    const url = new URL(explicitOrigin)
+    return url.origin
+  }
+
+  const explicitPublicHost = process.env.SSR_PUBLIC_HOST
+  const publicHost = explicitPublicHost
+    ? normalizeUrlHost(explicitPublicHost)
+    : resolveConnectHost(host)
+
+  return `http://${publicHost}:${port}`
+}
+
+export const SSR_CONNECT_HOST = resolveConnectHost(SSR_HOST)
+export const SSR_BASE_URL = `http://${SSR_CONNECT_HOST}:${SSR_PORT}`
+export const SSR_PUBLIC_ORIGIN = resolvePublicOrigin(SSR_HOST, SSR_PORT)