createApp() — express Function Reference

Architecture documentation for the createApp() function in express.json.js from the express codebase.

Function javascript ExpressCore ApplicationInit

Entity Profile

ExpressCore→ ApplicationInit→ createApp() — express Function Reference

Dependency Diagram

graph TD
  d705aba7_815d_6409_2697_da757ce9e17f["createApp()"]
  eca68b5c_f321_92f1_9725_72b595b85224["express.json.js"]
  d705aba7_815d_6409_2697_da757ce9e17f -->|defined in| eca68b5c_f321_92f1_9725_72b595b85224
  style d705aba7_815d_6409_2697_da757ce9e17f fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

test/express.json.js lines 722–740

function createApp (options) {
  var app = express()

  app.use(express.json(options))

  app.use(function (err, req, res, next) {
    // console.log(err)
    res.status(err.status || 500)
    res.send(String(req.headers['x-error-property']
      ? err[req.headers['x-error-property']]
      : ('[' + err.type + '] ' + err.message)))
  })

  app.post('/', function (req, res) {
    res.json(req.body)
  })

  return app
}