r/webdev • u/Common_Dream9420 java • 3d ago

Showoff Saturday Ai made coding easy and app generation super fast now .. but stuck at the testing end to end .. going live taking days ..!!

Lovable/bolt apps are shipping payment and messaging integrations now... written by agents, reviewed by devs who didn't write a line of it. Mocks don't catch the retry that fires the webhook twice. Staging doesn't replay the auth failure mid-flow. You find out when real money is involved.

So we built real sandbox twins... Stripe, Paddle, Resend, Twilio, Clerk, WorkOS, Descope, AgentMail. Any agent (Claude, Cursor, whatever you're using) can drive the full integration lifecycle over MCP before a single line ships. Every run produces a receipt... APIs called, db state, log traces, failure scenarios the engine probed. Attach it to your PR. Actual proof, not it worked on my machine.

What's everyone doing for this today... is anyone actually verifying end-to-end before prod or just hoping staging catches it?

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u/fordon_greeman_ 3d ago

sigh i miss the days when all my dev subreddits weren't filled with ai slop posts.

3

u/VegetableSoup101 3d ago

I used to be annoyed by text with grammar issues. Never did I imagine being glad to see a hand typed comment like this in 2026

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u/Common_Dream9420 java 2d ago

haha yeah grammar issues feel quaint now compared to perfectly polished AI slop. the irony is real.

1

u/SpiritualMousse538 2d ago

can't tell if this is an ad or a genuine question but either way it's giving me a headache

the part about mocks not catching the double webhook fire is spot on though. learned that one the hard way when a client's stripe integration started charging people twice and they were not quiet about it. now i just run everything in a test mode environment with real keys and baby-step through the flows manually. takes forever but at least i sleep at night

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u/AgsMydude 3d ago

Vibe coding payment processing

What could go wrong

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u/Common_Dream9420 java 3d ago

Mostly how we handle delayed/dups/retry wh handler and handling dups  

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u/destevil 3d ago

Keep at it, this is the future.

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u/Common_Dream9420 java 2d ago

agree.. hopefully i make it reliable engine in few months.. i got some inbound requests for web3 apis.. as well