npm install

• bcrypt :- hash your plain password and store hashed password in database.
• body-parser :- Parse incoming request bodies in a middleware before your handlers, available under the req.bodyproperty.
• express :- Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications.
• jsonwebtoken :- JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object.
• mongoose :- Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment.
• morgan :- HTTP request logger middleware for node.js.
• nodemon :- nodemon will watch the files in the directory in which nodemon was started, and if any files change, nodemon will automatically restart your node application.

These are the Donut APIs

The response body for all the APIs will use the following format and it will contain one of them ( data | errors ).

{
    data: {
        /../
    },
    errors: {
        /../
    }
}

Error objects provide additional information about problems encountered while performing an operation. Error objects MUST be returned as an array keyed by errors in the top level of a JSON:API document.

• status : the HTTP status code applicable to this problem, expressed as a string value.
• code : an application-specific error code, expressed as a string value.
• title : a short, human-readable summary of the problem that SHOULD NOT change from occurrence to occurrence of the problem, except for purposes of localization.
• detail : a human-readable explanation specific to this occurrence of the problem. Like title, this field’s value can be localized.

POST    : To create resource 
PATCH   : To Update resource
GET     : Get a resource or list of resources
DELETE  : To delete resource