How to use the json function from body-parser

Find comprehensive JavaScript body-parser.json code examples handpicked from public code repositorys.

body-parser.json is a middleware for Node.js that parses incoming JSON payloads and makes them available under the req.body property.

app.js

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    console.error(err)
    return res.status(500).json({ error: 'unexpected error' })
  }
})


app.get('/api/game', bodyParser.json(), validateToken, function (req, res) {
  try {
    const actions = determineActions(req.state)
    return res.json({ map: MAP, state: req.state, actions, decryptedToken: req.decryptedToken })
  } catch (err) {

app.js

GitHub: CoolestProjectsBelgium/coolestproject-backend

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  ...yaml.load(fs.readFileSync(path.resolve(__dirname, './api/swagger.yaml'), 'utf8')),
  'x-express-openapi-additional-middleware': [validateAllResponses, cleanResponse],
  'x-express-openapi-validation-strict': true
},
consumesMiddleware: {
  'application/json': bodyParser.json(),
  'text/text': bodyParser.text()
},
errorMiddleware: function(err, req, res, next) {
  console.log('app.js_02_Error Middleware:', err);

How does body-parser.json work?

The body-parser.json middleware in Express is used to parse JSON-encoded data in the body of a request, and make it available as req.body object in subsequent middleware functions or routes. It can also handle some common errors related to invalid JSON data.

index.js

GitHub: Janine65/amc-backend

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    userid: session.userid,
  };
}


const app = express();
app.use( bodyParser.json());
app.use(bodyParser.urlencoded({     // to support URL-encoded bodies
  extended: true})); 
app.use(cors())

Ai Example

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const express = require("express");
const bodyParser = require("body-parser");

const app = express();

// Use JSON body parser middleware
app.use(bodyParser.json());

// POST request handler
app.post("/api/user", (req, res) => {
  const user = req.body; // Extract user data from request body
  // Handle user data
  res.send("User created successfully");
});

// Start the server
app.listen(3000, () => {
  console.log("Server is running on port 3000");
});

In the example above, body-parser.json() middleware is used to parse the JSON data from the request body of a POST request. The parsed JSON data is then available in the req.body object for further processing.

Other functions in body-parser

Sorted by popularity

body-parser.urlencoded is the most popular function in body-parser (42 examples)

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