Rename server => modules

modules/middleware/devAssets.js

@@ -0,0 +1,29 @@
+const invariant = require("invariant");
+
+const createAssets = require("./utils/createAssets");
+
+/**
+ * An express middleware that sets req.assets from the
+ * latest result from a running webpack compiler (i.e. using
+ * webpack-dev-middleware). Should only be used in dev.
+ */
+function devAssets(webpackCompiler) {
+  let assets;
+  webpackCompiler.plugin("done", stats => {
+    assets = createAssets(stats.toJson());
+  });
+
+  return (req, res, next) => {
+    invariant(
+      assets != null,
+      "devAssets middleware needs a running compiler; " +
+        "use webpack-dev-middleware in front of devAssets"
+    );
+
+    req.assets = assets;
+
+    next();
+  };
+}
+
+module.exports = devAssets;