Code Snippet - Return JSON Response for Express.js

Table of Contents

1. Introduction
2. Sample Code
3. JSON Response
4. Conclusion

Introduction

This is a sample code snippet for creating an API that returns a JSON object in Express.js.

Sample Code

A Sample Code Snippet for create api return json object
   var tagQ = yourCollection.find({}).limit(20);
    yourCollection.exec(function (err, resultCollections) {
        var array = [];
        var result = {};
        resultCollections.forEach(function (tag) {
            array.push(tag.TagId);
        });
        result.name = 'name';
        result.id = 'id';
        result.items = array;
        res.json(result);
    });

JSON Response

The above code will return a JSON object like the following:

{
    "name": "name",
    "id": "id",
    "items": [
        "your item1",
        "your item2"
    ]
}

Conclusion

Using res.json() in Express.js is a simple way to return a JSON response from your API. You can build the response object by querying your collection and structuring the data as needed.