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Middleware nodes

JSON Body Parser — express.middleware.jsonParser​

Parses incoming requests with JSON payloads.

  • Inputs: in — "App"
  • Outputs: out — "App"
  • Config fields: none
app.use(express.json());

Custom Middleware — middleware.customCode​

The escape hatch for middleware: raw JavaScript inserted as an app.use(...) callback.

  • Inputs: in — "App"
  • Outputs: out — "App"
  • Config fields:
KeyTypeDefaultNotes
codecode""Available: req, res, next. Call next() to continue to the next middleware/route, or send a response (res.json/res.send/res.end) to end the chain there.
isAsyncbooleanfalseEnable to use await inside this middleware.
npmDependenciestext""Comma-separated npm packages this code requires, e.g. "axios, lodash@^4.17.0".

Your code is spliced verbatim (each line indented) into an app.use(...) wrapper — the same trust level as typing raw JavaScript anywhere else in visual-node, no sandboxing.

app.use((req, res, next) => {
  console.log(`${req.method} ${req.path}`);
  next();
});

This is the exact code the Custom Middleware Logging example generates from a one-line logger.