Shardul Lavekar
@shardullavekar
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Founder at - replay production traffic locally. Git:
Mountain View, California
Joined January 2010
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Last Seen Profiles
We launched on Hackernews yesterday and made it to the top today.
Check us on HN! We have made both our plugin and SDK fully open-source!
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Bangalore to my hometown used to be a 24 hours journey. Now, there is a direct flight everyday and i travelled to vote for the man who made it happen.
Vote. It matters. ✌️
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Iterate and get better every time; this holds true for programming, entrepreneurship, and life in general. So much to learn from
@venkat_s
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@_pagarwal
Airtel uses inhouse devloped OCR to verify user data from documents automatically. We process about 800k documents everyday.
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I will be conducting a session on replaying production traffic locally at the
@spring_io
, thank you
@sergialmar
for considering my entry!
Super excited to be in Barcelona, Spain on the 30th and 31st of May!
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Internally, Uber and Ola have platforms that other teams use. The platform teams have their own unit and integration tests which mostly test downstream dependencies. No one ever tests all the upstream scenarios.
Replaying production traffic locally, even before pushing code
Apparently, this man booked an Uber auto for Rs 62
And got Rs 7.66 crore bill
And driver said he is not gonna move until he’s paid
Lmao 😂
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Remember this user who got a bill of USD 950k for a ride of USD 1?
I am building to replay production traffic locally and guarantee 0 regressions and we have launched on Product Hunt today. Your support means a lot!
Thank you
Internally, Uber and Ola have platforms that other teams use. The platform teams have their own unit and integration tests which mostly test downstream dependencies. No one ever tests all the upstream scenarios.
Replaying production traffic locally, even before pushing code
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Landed in Barcelona and am super excited for my workshop at
@spring_io
, if you are around, let's catch up!
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We are hiring a founding engineer. You can read more about it here:
RT for good karma. If your referral seals the deal, coffee on me
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Testing in prod is cool but next time, do consider - it allows you to replay production traffic locally without turning your customers into beta testers.
Razorpay (
@Razorpay
) has taken the entire Testing in Prod approach today with my account.😂😂
A Razorpay employee accessed my LIVE account, created a subscription payment, paid for it & then refunded it to himself lmao.
1. I was never informed about any "tests".
2. The worst
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When only you can fix production issues, and are finally summoned!
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The Java world is in constant motion, and we wrote a post to dive into the latest game-changer: Java 21. This release isn't just about a few tweaks; it's a leap forward, packed with groundbreaking features that will transform the way you work with Java.
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Enough resources are available to test a web or a mobile app using selenium, cypress, or playwright. In our case, we had to automate testing an IntelliJ Plugin. An IntelliJ Plugin is built using Swing and sits inside the IDE. Here is how we developed an RPA that tests our plugin
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"Apply for a job in a filmy style. Bollywood, ok?"
ChatGTP:
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We have written a guide on integrating Spring Security with Spring Boot 3, Spring Data JPA, and PostgreSQL. Check it out and share your thoughts. Up next: advanced topics like role-based access, JWTs, and OAuth2 social login. Stay tuned!
#SpringBoot
#SpringSecurity
"
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Developer love life is like their VPN connection: unstable, unpredictable, and often goes down when they need it the most 😠
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A lot of my early days coding questions on Stackoverflow were about strings in Java. We wrote a blog that explores the evolution of strings from Java 1 to Java 21.
(If you are bored with the Sam Altman news, this will be a good break! :P)
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How to set up Mockito for your Java code?
How to enable runtime mocking?
Can you mock interfaces?
How to stub a method to throw an exception?
How to mock static methods and classes?
My blogpost explains it in depth.
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One of the main feedbacks with Unlogged's record and replay was that irrelevant or ever-changing fields such as timestamps were compared and the test cases failed.
We implemented custom assertions to address this.
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Lombok worked so flawlessly that I never had to worry about how it worked underneath until we extended its implementation to create unlogged-sdk.
Here, we explain how lombok works, in detail.
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I am in Madrid till 24th May and in Barcelona from the 28th May till 1st June.
Happy to catch up if anyone is around.
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US: We are building a decentralized finance platform for non-traditional assets & darivatives.
No-one:
India, meanwhile:
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Workshop 2 (Room 4)
Seats are filling fast.
Register, while you can.
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We wrote an article that explains setting up social logins using Oauth 2.0 in your Spring Boot 3 application.
Let us know your feedback.
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Unit tests are essential, but writing them takes time. Fear not! 5 fantastic tools (apart from Co-Pilot) that generate unit tests or boilerplate.
Randoop: Java app, some setup complexities, but runs on JRE/JDK.
#UnitTest
#TestAutomation
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Discover Java 21's game-changers: Record data type & enhanced pattern matching. Dive into how they're transforming Java programming.
#Java21
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We wrote a 2nd post that dives into the power of the Vector API, now in its 6th Incubator. Learn how enabling efficient vector computations boosts performance in domains like machine learning, finance, and more.
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Why upgrade from Java 8/Spring Boot 2 now?
Limitations of older Java/Spring Boot versions?
Best practices for moving to Java 21/Spring Boot 3.2?
Tools and tips for a smooth Java/Spring Boot upgrade?
Here's our blog post that answers it.
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We wrote a blog post comparing all mocking frameworks in Java.
Read and let me know what you think.
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Truly great talk by
@alina_yurenko
at the
@spring_io
Coincidently, we published an in-depth blog post on the same topic today!
Great
@graalvm
+
@springboot
talk by
@alina_yurenko
at
#springio24
with a great explanation of what Spring AOT is (Ahead Of Time optimizations required on native but also usable on the JVM).
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So many chain snatchings, mobile thefts, and drug peddling on the streets yet police harass innocent folks. Time to leave Blr.
I was waiting in my car outside Nexus mall Koramangala for a friend. Suddenly a police officer from the Adugodi police station showed up asked me to step out of the car and said he was going to check me and the vehicle.
@BlrCityPolice
@DgpKarnataka
@CPBlr
#Bangalore
#Police
1/n
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lol!
I totally agree, but also I believe it should happen exactly the same when somebody suggest to use JavaScript on the backend.
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Things going wrong on production :D
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I conducted a workshop on Replaying production traffic locally and more people turned up than the room could accommodate. Everything at the
@spring_io
has been so smooth so far!
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Inside an Ola interview:
Candidate: *cancels the meeting 2mins before scheduled time*
Interviewer: You are hired. Welcome to Ola!
#copied
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Totally, we are already creating a build system that runs all generated unit tests and tells what's wrong - almost instantly. Soon..
Future developers👩💻 will use the test suite like we use the compiler right now🟥✅
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Q: why do something like nuclear energy with Oklo when you are already doing something big as OpenAI?
Answer by
@sama
: 2 things inevitably become part of everything we do.
1. energy
2. intelligenece
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You have to have a team to execute. Hire at least a few engineers!
Worst piece of advice ever.
Founders: what is the worst piece of advice you've received?
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@NestawayIndia
Sunday evening 8 PM. Got a prompt customer care call after I enquired for a PG. Nice service! Way to go.
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Just heard "Varahroopam" being played at the groom's entry. How ironic!
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Mad respect for
@jimSarbh
for playing Dr. Bhabha. Go watch Rocket Boys 2 - you will experience emotions like never before. Not sure who did the soundtrack - kudos to them!
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A Hotfix.
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Load Balancing!
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Conventional testing only covers a little ground.
Trying to fit all the production scenarios in conventional testing is like trying to fill the Grand Canyon with a teaspoon. I am creating an open-source tool that replays the relevant production traffic for a code change, locally
🚀 Dive into "Replay Production Traffic Locally: Instantly Spot & Fix Breaking Changes" at
#GIDS
2024 on April 24th!
@shardullavekar
unveils cost-saving strategies & AI tools for zero production bugs. 🐞💼
🔗 Session details:
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respect for
@svembu
sir keeps increasing 🙏
Today we began a cultural program to identify and sponsor 50 local artists to perform weekly in 50 small villages in a rotation, creating income for the artists and an enriching experience for rural people.
The first Nadhaswaram concert started in our village this evening. 🙏
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Fun fact: both startup are founded by bitsians 😎
super proud!
The launch of 3 satellites from Indian companies
@PixxelSpace
and
@DhruvaSpace
heralds the beginning of a new era, where Indian talent in space technology can be fully realized. Congratulations to all the companies and everyone involved in this launch.
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one of the best innings from
@imVkohli
, win over Pakistan and diwali at home! What's more to ask for 😍
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Well, they felt stupid even with the special effects.
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Exploring
#SpringBoot
,
#Quarkus
, &
#Micronaut
for Java microservices? 🚀 Dive into their architecture, pros & cons, and how to choose the right framework for your project. Get all the insights in our latest post! ✨
#JavaDevelopment
#Microservices
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Thanks for the shoutout, Artem! 🙏
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"Test the waters before jumping in" - gone wrong!
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Am I the only one having only 1 card or getting too old?
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super cool stuff, do check this out!
I’m SUPER excited to announce the launch of Outserv — a GraphQL-powered Blockchain Search System 🚀🔭
Outserv enables you to run production-grade GraphQL Search APIs over any blockchain data 10x faster than existing mechanisms.
Read all about it here:
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@PMOIndia
@GST_Council
@DARPG_GoI
- Sir, I have no clue why this is still pending. You claim to have ease of doing business and ground reality is something else! Can you please look into this and issue my business a GST number!?
@GST_Council
my gst number allocation is pending - it's super urgent for me to get the gst number within 1-2 days.
ARN AA270822128350G
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Best thing to see on the internet today 🔥🔥
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Pratik, you have been a sharp engineer, great mentor, truly altruistic, and above all - a good friend.
You wouldn’t like anyone expressing such emotions about you but words can’t describe the loss and grief.
Om Shanti, and Rest in Peace, wherever you are.
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From carrying satellites on a bullock cart, to a soft landing on the moon's south pole.
Well done
@isro
, so proud of you!
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Dive into our latest blog post where we simplify the integration of JWT with Spring Security 6. It's meant for developers looking to enhance authentication in their projects.
#JavaDev
#SpringBoot
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@aparanjape
He spoke for youth in general.
A lot of IT folks (who pay the tax at source) loose productivity due to poor infra/traffic woes.
Almost 2 hours a day is lost in traffic. It’s hard to expect them to work more, pay more taxes, and get nothing in return. Competing with larger
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when production went down and the last commit is yours....
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Read.This.Please.
When I joined IIT Bombay in 2013, the biggest stress that I had was how would I survive here, competing with all the top JEE ranks. For context, IIT Bombay's CSE program closed at AIR 59 (General) and almost all the top JEE rankers joined there.
Thread 👇🧵
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We just released a free plugin to generate a boilerplate for unit tests. Install Unlogged Plugin from Intellij Marketplace, open the plugin, and click on any method.
That's all it takes to get the code. It works fully offline!
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One legend playing another.
Waiting.
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@elonmusk
I have been trying to post an ad for a week now. No support from the ads team. Can you help?
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__/\__
@SushmaSwaraj
has earned a life long fan in me.
I have found out the details. Mr.Vijay Khanduja First Secretary in Indian Embassy is trying to help them.
@akhilbits
@__Aafreen
@BinitG
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These so-called journos preach with such confidence that they know the world far better than their audience. At times their motivation is to get noticed by western intellectuals. No wonder
@Nidhi
just bought that she is called for a job at Harvard! 😆😆
Says a lot about the quality of some of our
#journalists
if they are so easily influenced by scammers! Are the "news" and "views" they peddle influenced by, ahem, scammers, too?
#news
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so so true
It's sad to see 18-25 qe group, who are ready to jump into
#BlackLivesMatter
&
#BanCrackers
bandwagon, are oblivious to
#India
losing a hero. Most are busy liking, sharing and making reels on
#Instagram
. Shame 🇮🇳🙏
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making both abundant and affordable is important to make humanity progress at speed and scale.
One of the best things i heard in a long time!
@ycombinator
alum meet has been worth it!
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Diffblue Cover: AI writes JUnit tests. Indistinguishable from human-made. Boost coverage, and accelerate development.
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We were lucky to work with
@sdianahu
and glad that future YC founders will be lucky too!
It's been a joy and an honor to work with so many ambitious founders. I look forward to continuing working long-term as a group partner at YC. I am so excited!
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We launched 2 features on hacker news last week.
Atomic Run - it lets you hot-reload your code changes, replay the previously recorded inputs and check if your code changes are causing any regressions.
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We are also waiting for justice for
@anant1306
karmuse. BJP expects its workers to fight till death and forgets them once in power! :(
@Dev_Fadnavis
@Devendra_Office
@AmitShah
@narendramodi
@JPNadda
#KarnatakaBJPWorkerDeath
Video | Hindu activists and BJP workers surround state party president Nalin Kumar Kateel's car and heckle him, at Bellare in Sullia taluk.
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