Top Tweets for #100DaysofLearning
๐๐ฎ๐ ๐ฐ๐ญ/๐ญ๐ฌ๐ฌ
A valid JWT doesn't mean you're allowed to do everything.
For an admin endpoint, the backend must verify the token, find the user, check their role, then allow or reject the request.
Authentication โ Authorization.
#100DaysOfLearning
๐๐ฎ๐ ๐ฐ๐ฌ/๐ญ๐ฌ๐ฌ
Imagine a customer changing product prices or staff deleting admin records. Thatโs what happens when everyone has the same access.
RBAC separates permissions by role: user, staff, and admin. The backend must enforce them.
#100DaysOfLearning
Day 36/100 ๐๐
No coding, just recharging!
A day of reading for fun, resting & spending quality time with friends. โจ
Building in public also means embracing the days spent simply living.
What's your favourite way to unplug from tech? ๐ท
#100DaysOfLearning #BuildInPublic
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While studying my backend, I also started building the frontend.
We moved from an admin dashboard to a login page, then planned a separate public product page where visitors can browse without logging in.
It's still a work in progress
#100DaysOfLearning
๐๐ฎ๐ ๐ฏ๐ด/๐ญ๐ฌ๐ฌ
Why track refresh sessions?
Because a token that expires in 7 days may need to be revoked before then.
Session tracking helps a backend handle logout, revoke compromised sessions, and manage logins across devices.
#100DaysOfLearning
Day 14 of #100DaysOfLearning
Todayโs DSA practice focused on arrays:
โข Majority Element using HashMap in Java
โข Understanding frequency counting
โข Learning how to approach the Leaders in an Array problem
โข Practicing dry runs, logic building, and time & space complexity
๐๐ฎ๐ ๐ฏ๐ณ/๐ญ๐ฌ๐ฌ
What's the difference?
Access token: Accesses protected resources.
Refresh token: Gets a new access token when the current one expires.
In my MMS, access tokens last 1 hour, refresh tokens last 7 days.
#100DaysOfLearning
๐Day 31: Learnings | Data Analytics
๐ Statistics:
โ
Mean
โ
Variance & Standard Deviation
โ
Density Curves
โ
Empirical Rule (68โ95โ99.7%)
#DataAnalytics #Statistics #100DaysOfLearning
๐๐ฎ๐ ๐ฏ๐ฒ/๐ญ๐ฌ๐ฌ
Why should tokens expire?
If a token is stolen, an expiry time helps limit how long it can be used.
In my MMS backend:
Access token: 1 hour
Refresh token: 7 days
it is not just granting access, also control how long that access lasts.
#100DaysOfLearning
....IDOR, authentication, XSS, SQL injection, business logic flaws, API security, and other common vulnerabilities.
The mission is clear: submit my first valid bug bounty report before the end of December. ๐ฏ
One step at a time. Consistency over perfection.
#100DaysOfLearning
Day 33/100 ๐โจ
A little less tech, a little more life today!
Festivities, some tarot study ๐ฎ & a much-needed change of pace.
Still managed to kickstart Project Day 6! ๐ฉ๐ปโ๐ป๐
Building a life I love while building things I love.
#100DaysOfLearning #BuildInPublic
For those sharing their daily learning updates on Twitter ๐
Has posting your learning journey actually helped you stay consistent, connect with people, or land opportunities?
#LearningInPublic #DataAnalytics #100DaysOfLearning
๐๐ฎ๐ ๐ฏ๐ฑ/๐ญ๐ฌ๐ฌ
35 days of learning, building, debugging, and growing.
Today is for resting, reflecting, and recharging.
Consistency isn't about never resting. It's about showing up again.
#100DaysOfLearning #Rest #Consistency
๐๐ฎ๐ ๐ฏ๐ฐ/๐ญ๐ฌ๐ฌ
What happens when you click "Forgot Passwordโ?
Generate a secure token โ Hash it โ Store the hash โ Send the reset link โ Verify the token โ Change the password.
#100DaysOfLearning #Security #PasswordHash
๐๐ฎ๐ ๐ฏ๐ญ/๐ญ๐ฌ๐ฌ
I moved toward a minimal JWT payload: { id, iat, exp }.
Why? User roles and details changes. Fetching the current user from the database helps my backend use up-to-date information instead of relying on stale token data
#100DaysOfLearning #BackendDevelopment
๐๐ฎ๐ ๐ฏ๐ฌ/๐ญ๐ฌ๐ฌ
An admin, staff member, and user can all log in successfully. But should they have the same permissions?
Authentication identifies the user. Authorization decides what they can do.
#100DaysOfLearning #BackendDevelopment #API #SoftwareEngineering
context using a quotation mark and inject malicious JavaScript.
Iโm learning to look beyond the obvious and understand how context affects XSS vulnerabilities. ๐
#100DaysOfLearning #CyberSecurity #XSS #BugBounty
Been MIA from my #100DaysOfLearning journey for 12 days, thanks to my research paper.
Finally done! Will share updates soon.
Tomorrow, back to coding and my Tech journey.
Day 25/100 ๐ง ๐
Today's learning: Context Engineering, RAG & Dynamic Filters from @roadmapsh.
Biggest takeaway?
It's not about giving LLMs MORE information, but the RIGHT information at the right time.๐ฉ๐ปโ๐ปโจ
#100DaysOfLearning #BuildInPublic
๐๐ฎ๐ ๐ฎ๐ฑ/๐ญ๐ฌ๐ฌ
While working on my order flow, I started thinking about who should calculate the final order total. The frontend can calculate it, the backend shouldn't blindly trust it.
It should verify the data give the final total.
#100DaysOfLearning #BackendDevelopment
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