How to use the json function from express

Find comprehensive JavaScript express.json code examples handpicked from public code repositorys.

express.json is a built-in middleware in Express.js that parses incoming requests with JSON payloads.

index.js

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const {store, cart, roundNumber} = require("../.././bot/bot_store_cart.js");
const {algoliaIndexProducts} = require("../.././bot/bot_search");
const {createHash, createHmac} = require("crypto");
const jwt = require("jsonwebtoken");
const cookieParser = require("cookie-parser");
const jsonParser = express.json();
const Validator = require("validatorjs");
const busboy = require("busboy");
const moment = require("moment");
const cors = require("cors");

ExpressApi.js

GitHub: nnocsupnn/scraper-automation

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    }

    // Helment adds required security headers in the middleware
    this.server.use(helmet())

    // The express.json() function is a built-in middleware function in Express. It parses incoming requests with JSON payloads and is based on body-parser.
    this.server.use(express.json())

    
}

How does express.json work?

express.json() is an Express middleware function that parses incoming request bodies as JSON and exposes the resulting object on req.body. It uses the body-parser package to parse the request body, and checks the Content-Type header to determine whether to parse it as JSON. If the header is not application/json, it will skip parsing and leave req.body undefined.

server.js

GitHub: peppertaco/oai

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var chatsPath = 'public/chats/';
if (is_colab && process.env.googledrive == 2){
    charactersPath = '/content/drive/MyDrive/TavernAI/characters/';
    chatsPath = '/content/drive/MyDrive/TavernAI/chats/';
}
const jsonParser = express.json({limit: '100mb'});
const urlencodedParser = express.urlencoded({extended: true, limit: '100mb'});


// CSRF Protection //
const doubleCsrf = require('csrf-csrf').doubleCsrf;

server.js

GitHub: Konnect1946/TAIFRANKEN

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var chatsPath = 'public/chats/';
if (is_colab && process.env.googledrive == 2) {
    charactersPath = '/content/drive/MyDrive/TavernAI/characters/';
    chatsPath = '/content/drive/MyDrive/TavernAI/chats/';
}
const jsonParser = express.json({ limit: '100mb' });
const urlencodedParser = express.urlencoded({ extended: true, limit: '100mb' });
const baseRequestArgs = { headers: { "Content-Type": "application/json" } };
const directories = {
    worlds: 'public/worlds/',

Ai Example

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const express = require("express");
const app = express();

// Middleware to parse JSON requests
app.use(express.json());

// Route handler that expects a JSON request body
app.post("/users", (req, res) => {
  const { name, email, password } = req.body;
  // ...
});

In this example, express.json() is used as a middleware to parse incoming JSON requests. It adds a body object to the request object and parses the JSON data sent in the request. The parsed data can then be accessed in subsequent route handlers through req.body.

app.js

GitHub: midzovicmilan/natours

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app.use(express.urlencoded({ extended: true, limit: '10kb' }));
// cookie parser
app.use(cookieParser());
//middleware koj nam treba da bismo dobili podatke iz post route, bez toga dobijamo undefined
app.use(
  express.json({
    // kad imamo body veci od 10kb, nece biti prihvacen
    limit: '10kb',
  })
);

shortStorieRoutes.js

GitHub: vini00784/api-term-paper

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