Spring Boot Project With JWT For Beginners

In this tutorial, we will be covering the basics of Spring Boot and JWT token. Spring Boot is an open-source Java-based framework that is used to create stand-alone, production-grade applications. JWT (JSON Web Token) is a secure way of transmitting information between two parties. It is a compact, URL-safe means of representing claims to be transferred between two parties. In this article, we will explain what JWT is, why we use it, and why it is important to learn.

What is JWT?

JWT stands for JSON Web Token. It is a secure and compact way of transmitting information between two parties. It is encoded in JSON, which is a lightweight data-interchange format. JWT tokens are digitally signed, which makes them tamper-proof.

Why do we use JWT?

JWT is commonly used for authentication and authorization purposes. When a user logs in to a system, the system generates a JWT token that contains the user’s information. This token is then sent back to the user’s browser, where it is stored in a cookie or local storage. On subsequent requests, the token is sent back to the server, where it is used to authenticate the user.

Why is learning JWT important?

Learning JWT is important because it is becoming the de facto standard for authentication and authorization. It is used by many modern web frameworks, including Spring Boot. By learning JWT, you will be able to understand how modern web applications handle authentication and authorization. This knowledge will be useful if you are developing web applications or working in a security-related field.

Spring Boot and JWT Token

Spring Boot is a popular framework for building Java-based web applications. It provides a set of tools and conventions that make it easy to create standalone, production-grade applications. Spring Boot also has excellent support for integrating with other frameworks and technologies, including JWT.

To use JWT with Spring Boot, you need to add the appropriate dependencies to your project. Once you have added the dependencies, you can start using JWT with Spring Boot. Spring Boot provides a set of classes that make it easy to create, sign, and verify JWT tokens.

Project Link:

Practical Implementation

Source Code:

application.properties for referance

app.secret-key=asdfSFS34wfsdfsdfSDSD32dfsddDDerQSNCK34SOWEK5354fdgdf4

app.private-key= \
-----BEGIN PRIVATE KEY-----\n\
MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQDK7c0HtOvefMRM\n\
s1tkdiJm+A16Df85lQlmXjQvMHNgY4P/znvl4kRON9DdBdo3K81OG7pR/0H9XvdB\n\
TEojj/6vCVuMDeeIiBrgx0OJjhv0r8oUD4d52+1kXXITaniyZcbJ08s4sF7fUSCu\n\
IZOhvvwQTd/tIwXGU1qqfg+bsomQ6h2czPSKXAux54vUiRO2IWf/Y6twyk8cy1PH\n\
IOfelCVUJ4kzmP+CsOH7Rh3JMwZ0Mc4GAzndWpKwNXKjVM20/bKE9FgIiIjzmEQd\n\
VpSdUz2MbAKM1kskdaHXQyuaHoHfPwESYuEwBld4vh9AGMF3jYMu8ggnAzVRIoWG\n\
Mr5eCE2tAgMBAAECggEBAKBPXiKRdahMzlJ9elyRyrmnihX7Cr41k7hwAS+qSetC\n\
kpu6RjykFCvqgjCpF+tvyf/DfdybF0mPBStrlkIj1iH29YBd16QPSZR7NkprnoAd\n\
gzl3zyGgcRhRjfXyrajZKEJ281s0Ua5/i56kXdlwY/aJXrYabcxwOvbnIXNxhqWY\n\
NSejZn75fcacSyvaueRO6NqxmCTBG2IO4FDc/xGzsyFKIOVYS+B4o/ktUOlU3Kbf\n\
vwtz7U5GAh9mpFF+Dkr77Kv3i2aQUonja6is7X3JlA93dPu4JDWK8jrhgdZqY9p9\n\
Q8odbKYUaBV8Z8CnNgz2zaNQinshzwOeGfFlsd6H7SECgYEA7ScsDCL7omoXj4lV\n\
Mt9RkWp6wQ8WDu5M+OCDrcM1/lfyta2wf7+9hv7iDb+FwQnWO3W7eFngYUTwSw5x\n\
YP2uvOL5qbe7YntKI4Q9gHgUd4XdRJJSIdcoY9/d1pavkYwOGk7KsUrmSeoJJ2Jg\n\
54ypVzZlVRkcHjuwiiXKvHwj2+UCgYEA2w5YvWSujExREmue0BOXtypOPgxuolZY\n\
pS5LnuAr4rvrZakE8I4sdYjh0yLZ6qXJHzVlxW3DhTqhcrhTLhd54YDogy2IT2ff\n\
0GzAV0kX+nz+mRhw0/u+Yw6h0QuzH9Q04Wg3T/u/K9+rG335j/RU1Tnh7nxetfGb\n\
EwJ1oOqcXikCgYEAqBAWmxM/mL3urH36ru6r842uKJr0WuhuDAGvz7iDzxesnSvV\n\
5PKQ8dY3hN6xfzflZoXssUGgTc55K/e0SbP93UZNAAWA+i29QKY6n4x5lKp9QFch\n\
dXHw4baIk8Z97Xt/kw07f6FAyijdC9ggLHf2miOmdEQzNQm/9mcJ4cFn+DECgYEA\n\
gvOepQntNr3gsUxY0jcEOWE3COzRroZD0+tLFZ0ZXx/L5ygVZeD4PwMnTNrGvvmA\n\
tAFt54pomdqk7Tm3sBQkrmQrm0+67w0/xQ9eJE/z37CdWtQ7jt4twHXc0mVWHa70\n\
NdPhTRVIAWhil7rFWANOO3Gw2KrMy6O1erW7sAjQlZECgYBmjXWzgasT7JcHrP72\n\
fqrEx4cg/jQFNlqODNb515tfXSBBoAFiaxWJK3Uh/60/I6cFL/Qoner4trNDWSNo\n\
YENBqXLZnWGfIo0vAIgniJ6OD67+1hEQtbenhSfeE8Hou2BnFOTajUxmYgGm3+hx\n\
h8TPOvfHATdiwIm7Qu76gHhpzQ==\n\
-----END PRIVATE KEY-----\n

app.public-key= \
-----BEGIN PUBLIC KEY-----\n\
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyu3NB7Tr3nzETLNbZHYi\n\
ZvgNeg3/OZUJZl40LzBzYGOD/8575eJETjfQ3QXaNyvNThu6Uf9B/V73QUxKI4/+\n\
rwlbjA3niIga4MdDiY4b9K/KFA+HedvtZF1yE2p4smXGydPLOLBe31EgriGTob78\n\
EE3f7SMFxlNaqn4Pm7KJkOodnMz0ilwLseeL1IkTtiFn/2OrcMpPHMtTxyDn3pQl\n\
VCeJM5j/grDh+0YdyTMGdDHOBgM53VqSsDVyo1TNtP2yhPRYCIiI85hEHVaUnVM9\n\
jGwCjNZLJHWh10Mrmh6B3z8BEmLhMAZXeL4fQBjBd42DLvIIJwM1USKFhjK+XghN\n\
rQIDAQAB\n\
-----END PUBLIC KEY-----\n

Conclusion

In this article, we have covered the basics of Spring Boot and JWT token. We have explained what JWT is, why we use it, and why it is important to learn. We have also discussed how to use JWT with Spring Boot. By learning JWT and Spring Boot, you will be well-equipped to build modern web applications that are secure and reliable.

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