m.karimi

Discipline is not personality trait.
its a system.

Backend engineer

[m.karimi @karimymiriam]

I learn best by building real things.

So I'm teaching myself M-Pesa integration from scratch using NestJS and Typescript.

Day1: Daraja sandbox is live☑️

Going to document every step the wins , the bugs everything.

Let's see where it goes👀

#Mpesa #Safaricom #Fintech

[m.karimi @karimymiriam]

Your code can be flawless but the business layer can still kill it.

[m.karimi @karimymiriam]

The most dangerous gap isn't your code but it's compliance
You can spend months building the cleanest most reliable system in east Africa and safaricom can pull your API access overnight because of a clause buried in your merchant agreement that you never read.

[Dmitrii Kovanikov @ChShersh]

Microservices should talk to each other only via queues. If a microservice failure leads to your system failure, you’re doing it wrong.

If you don’t have the skills to design such a system, make a monolith.

And if you can’t design a scalable monolith, read a fucking book.

[Sospeter Mong'are @msnmongare]

Another day in the life of a fintech developer, where every figure has to add up.

Today was all about learning, debugging & making sure every transaction behaved exactly as expected. 🔥

Did the money go through? ✅ Yes.
Did the accounts reconcile? ✅ Yes.

In fintech, the code isn't done until the numbers agree.

[m.karimi @karimymiriam]

How do we cache a token so that we are not requesting a new one on every API call?

[m.karimi @karimymiriam]

Picking up wherei left off with the M-Pesa integration series. let's get into it

[m.karimi @karimymiriam]

Picking up wherei left off with the M-Pesa integration series. let's get into it

[m.karimi @karimymiriam]

Been off the grid for a bit. Back to building until further notice.. unless I die or worse my code does or until production takes me out first
#FinTech #Mpesa #BuildInPublic

[m.karimi @karimymiriam]

Been off the grid for a bit. Back to building until further notice.. unless I die or worse my code does or until production takes me out first
#FinTech #Mpesa #BuildInPublic

[Sospeter Mong'are @msnmongare]

Missing M-Pesa callbacks will teach you the Transaction Status API faster than any tutorial ever will😂

You'll be reading Daraja Tatu docs wondering why your callback URL went silent.

The fix? Always persist your CheckoutRequestID the moment you fire the STK Push before anything else. That's your lifeline when callbacks ghost you.

Then hit the Transaction Status API to query what actually happened.

[m.karimi @karimymiriam]

I fixed the errors by moving database url to prisma.config.ts
Also installed the Prisma adapter

Database connected successfully..

Next STK push🚀

[m.karimi @karimymiriam]

Day 3 building Mpesa integration in public no filter
A learning journey

Database layer done but it wasn't easy
Challenges I hit
✔️Prisma 7 no longer supports url in schema.prisma
✔️It requires a driver adapter(Prisma pg)
✔️Permission denied for shadow db.
I

[m.karimi @karimymiriam]

I fixed the errors by moving database url to prisma.config.ts
Also installed the Prisma adapter

Database connected successfully..

Next STK push🚀

[m.karimi @karimymiriam]

Day 3 building Mpesa integration in public no filter
A learning journey

Database layer done but it wasn't easy
Challenges I hit
✔️Prisma 7 no longer supports url in schema.prisma
✔️It requires a driver adapter(Prisma pg)
✔️Permission denied for shadow db.
I

[JaPrado. @Dr_AustinOmondi]

Unless otherwise you will never get rich through employment. Start that business brother.

[David Oladapo @oladapodev]

Keep going at this rate, and you will have more endpoints than users

[Pratham @Prathkum]

Everything you need to know about REST API:

[Tomilola • Software Engineer @tomilola_ng]

216 API Endpoints delivered in just 3 weeks

This are the best times to build ✅

[Prof. Lenchodas @PimaSuti]

@Toribabieegirl The discipline of silence

[m.karimi @karimymiriam]

@BenoHr80463 Interested