aditimahabole/food_order_app

food_order_app

PART 1

---

git clone empty repo -> cd foldername -> npm init -> (package.json is made )

tsc --init (to have tsconfig file)

created index.ts in Main folder

dont forget to add scripts to package.json file for index.ts

---

Created Directories

• utility
• services
• routes
• models
• middlewares
• images
• images
• dto
• controllers
• config

---

We created two routes AdminRoute and VandorRoute in routes Folder

Then we moved to contollers Folder to control AdminRoute and inside AdminControll.ts we created three functions that are
CreateVandor : for posting data
GetVandor : for getting all vandors
GetVandorbyID : getting vandor by ID

---

Then in AdminRoute.ts we created routes

• router.post('/vandor',CreateVandor)
• router.post('/vandors',GetVandor )
• router.post('/vandor/:id',GetVandorbyID)

---

Now we moved to dto folder (Data Transfer Object)

We created Vandor Interface (you can say class)

---

For fetching data from url we will use body-parser in main file

---

Then we completed CreateVandor function in AdminControl.ts file

---

Creating Model

Installed mongoose dependencies npm i mongoose @types/mongoose

Inside Vandor Scema foods field is an array of object ids , basciaaly its forein key from Food Table

It's an array of objects, where each object is expected to be of type mongoose.Schema.ObjectId and is referring to the "food" model (specified by ref: "food")

---

---

Creating a vandor in AdminController.ts , checking if it already exists and using salt excrypting the password

A Password utility is made inside utility folder where generating salt and hashing is done.

Install below first :

npm i bcrypt

npm i --save-dev @types/bcrypt

Removing password and salt and createdAt and such things while sending as JSON

JSON MESSAGE

MONGO DB

---

As you can see now we are not able to see the password in JSON format which is good for security purpose , but in database they all are stored , so hacker will not be able to acess password or salt from json response as we have removed it .

20 dec 23

sucessfully created model and applied only one user entry , hased password using bcrypt and salt , and removed password and salt field from JSON message

---

PART 2

Storing helper classes in utility folder if data is not available or incorrect

Completed getVandors , getvandorById

Working on Vandor route

Use of JWT in utility/Password.ts

The signature verification process involves the use of a secret key that only the server knows. The key is used to sign the JWT when it is created and to verify the signature when the JWT is presented to the server. The signature is a cryptographic hash generated using this secret key and the content of the JWT (header and payload).

---

---

Token Generated

---

Verifying signature

Made Auth.dto.ts

In payload variable we are able to acess id , name , email , foodTypes

---

---

Middleware CommonAuth

Checking if Signature is Validated or Not

First Login using Email and Password

---

---

Copy the Token generated below

---

---

Go to Folders three dot and click Edit

---

---

Go to Authorization tab

---

---

Select Type as Bearer Token and paste the copied token below it

This will help to make that user validated and under this folder every request can access this token to verify

Now Click on Save button

---

---

In vandor profile set option of Authorization as bearer Token

Now go to Vandor Profile Request and clear the body as its a Get request and if the user is authenticated it will show us user details

If not validated We will see json message as:{"message":"User not authorized (Authenticate)"}

---

---

PART 3

Adding food functionality

First Login > copy token > VANDOR folder > edit > choose Bearer Token , add token without " " > Click Save > and now do the below thing

---

---

Adding Iamges using Multer Library

Multer is a node.js middleware for handling multipart/form-data, which is primarily used for uploading files

# PART 4

Adding Images to Database

npm i multer -> npm i @types/multer : it handles file upload functionality