Daniel Pertu - DEV Community

Daniel Pertu

Oct 16

Our next.config.ts configures nothing, and its only comment describes a mechanism we never used

#nextjs #typescript #webdev #react

5 min read

Daniel Pertu

Oct 16

Our crash window tells you to check a log file that most of the app never writes to

#electron #node #observability #typescript

5 min read

Daniel Pertu

Oct 16

One optional phone number, eleven files, five kinds of empty, and no migration

#typescript #postgres #ux #webdev

7 min read

Daniel Pertu

Oct 16

Two things must happen before our server module loads, and a require is all that enforces the order

#electron #node #typescript #architecture

6 min read

Daniel Pertu

Oct 16

Setting an env var above your imports does not run before them, and our integration test works anyway

#testing #node #typescript #postgres

6 min read

Daniel Pertu

Oct 16

Two functions decide what to call you, and they disagree on purpose

#typescript #webdev #ux #email

4 min read

Daniel Pertu

Oct 16

Our newest commit changed zero files, and the 27 lines it was really about are all pooler workarounds

#postgres #nextjs #database #typescript

5 min read

Daniel Pertu

Oct 16

A malformed uuid is a 500, not an empty result, which is why one five line function has 19 call sites

#postgres #typescript #nextjs #webdev

5 min read

Daniel Pertu

Oct 16

Seventeen environment variables, all of them secrets, and next build runs with none of them set

#nextjs #node #devops #typescript

6 min read

Daniel Pertu

Oct 16

Two taxonomies in our app share the word "engineering", and matching on it is exactly backwards

#typescript #architecture #webdev #datamodelling

4 min read

Daniel Pertu

Oct 16

Six HTML emails, five plain-text twins, and the one without a twin carries the activation code

#email #typescript #webdev #node

5 min read

Daniel Pertu

Oct 16

48 of our functions are POST endpoints, and the three that read the host page are deliberately not

#nextjs #security #react #typescript

5 min read

Daniel Pertu

Oct 16

Structured Outputs has no optional fields, so our model schema and our stored schema are different types

#typescript #ai #webdev #architecture

7 min read

Daniel Pertu

Oct 16

Our client-side fetch retries POSTs, and a primary key is the only reason that is safe

#typescript #react #webdev #javascript

5 min read

Daniel Pertu

Oct 16

A photo with no file path, a screen with no stable key, and seven failures with seven sentences

#reactnative #typescript #privacy #ux

6 min read

Daniel Pertu

Oct 16

Two postgres-js clients for one database, and every number in them is different

#postgres #nextjs #serverless #node

5 min read

Daniel Pertu

Oct 16

The biggest file on our website is the terms of service, and nothing imports it

#nextjs #react #webdev #typescript

6 min read

Daniel Pertu

Oct 16

Two weeks ago I argued that flagging beats dropping. The code now drops.

#email #typescript #ai #webdev

4 min read

Daniel Pertu

Oct 16

Our inbound mail webhook had a path that skipped signature verification, and reaching it meant leaving a header out

#security #node #nextjs #webdev

5 min read

Daniel Pertu

Oct 16

A 120 second request, a 35 second crawl and a 75 second model call, and the arithmetic has to leave slack

#nextjs #node #ai #webdev

7 min read

Daniel Pertu

Oct 16

Our terms version is two constants you bump by 0.1, and renaming the company was enough to bump them

#typescript #postgres #privacy #webdev

7 min read

Daniel Pertu

Oct 16

wrap, break, minPresenceAhead and fixed: the four react-pdf props that decide where a report splits

#react #pdf #typescript #webdev

5 min read

Daniel Pertu

Oct 16

Three Supabase clients, one cookie jar, and the response object our proxy is not allowed to replace

#nextjs #supabase #webdev #typescript

7 min read

Daniel Pertu

Oct 16

Six exercise types, two layouts, and a phone that gets three tabs instead of three panes

#react #css #webdev #nextjs

4 min read

Daniel Pertu

Oct 16

A signed-in session crosses two of our domains in a URL fragment, and one consumer handles both producers

#nextjs #security #typescript #reactnative

6 min read

Daniel Pertu

Oct 16

Three platforms' logos, three sets of brand rules, and one SVG id that can blank the rest

#react #svg #css #webdev

1

7 min read

Daniel Pertu

Oct 16

Our Redis cache measured one string and stored another, so every read deleted the key

#postgres #redis #performance #node

6 min read

Daniel Pertu

Oct 16

Four ways to stop our email, and only one of them asks first

#email #nextjs #privacy #webdev

6 min read

Daniel Pertu

Oct 16

1,250,964 rows that recorded nothing, and why deleting them gave back no disk at all

#postgres #database #node #webdev

6 min read

Daniel Pertu

Oct 16

373 of our pages live at the site root, and one Set is the only thing stopping a slug from eating /terms

#nextjs #seo #typescript #webdev

1

6 min read

Daniel Pertu

Oct 15

We cut a scene out of our Remotion reel and slowed the rest to 80%, and two one-line functions kept every cue on its frame

#remotion #react #typescript #animation

7 min read

Daniel Pertu

Oct 15

Four email switches stored as an array of the ones you turned off, and consent that belongs to the address

#postgres #webdev #typescript #privacy

6 min read

Daniel Pertu

Oct 15

Forty-one columns in our schema are enums in TypeScript and plain text in Postgres

#postgres #typescript #database #webdev

6 min read

Daniel Pertu

Oct 15

Our support answers live in a TypeScript array, and every number in them is interpolated from the plans file

#typescript #webdev #devjournal #ai

6 min read

Daniel Pertu

Oct 15

Every line of a new support thread gets its own millisecond, because one transaction would stamp them all the same

#postgres #typescript #webdev #database

6 min read

Daniel Pertu

Oct 15

A background refresh must not move the row under your cursor, so our table renders the snapshot it loaded with

#react #nextjs #webdev #frontend

5 min read

Daniel Pertu

Oct 15

Every contrast failure on our site is the same Tailwind feature, and measuring it needs a canvas

#a11y #css #tailwindcss #webdev

6 min read

Daniel Pertu

Oct 15

Our .env.example documents 19 variables and the app reads 15, and you can read one of them off the live HTML

#nextjs #webdev #devops #react

5 min read

Daniel Pertu

Oct 15

Our heaviest animation is a word nobody is meant to read, at 5% opacity, hidden on every phone

#nextjs #react #performance #webdev

4 min read

Daniel Pertu

Oct 15

Five ways to say "wait" in one Next.js app, and the sign-in form uses none of them

#nextjs #react #webdev #ux

4 min read

Daniel Pertu

Oct 15

I nearly deleted four live components, because my audit grep only matched double quotes

#react #nextjs #webdev #typescript

4 min read

Daniel Pertu

Oct 15

Three icon conventions in one app, and the copy-pasted one is on every sign-in screen

#nextjs #react #webdev #performance

5 min read

Daniel Pertu

Oct 15

We ask every desktop notification to never disappear, and on the two platforms we ship to that is one option too many and one too few

#electron #javascript #macos #windows

5 min read

Daniel Pertu

Oct 15

We round a converted price up to the next .99, and three of our currencies have no .99 to round to

#typescript #i18n #webdev #javascript

6 min read

Daniel Pertu

Oct 15

Four alert emails, eight functions, and a five-line HTML escaper we wrote on purpose

#email #typescript #webdev #node

6 min read

Daniel Pertu

Oct 15

Our whole database client is twenty lines, and three of its four options exist because of the connection pooler

#postgres #nextjs #serverless #devops

6 min read

Daniel Pertu

Oct 15

One release script, two child processes, and only one of them is allowed a shell

#node #devops #aws #javascript

5 min read

Daniel Pertu

Oct 15

Two files in our build set an environment variable and then call require(), and an import would have broken both

#electron #node #javascript #typescript

4 min read

Daniel Pertu

Oct 15

Four of our expo-router screens sit outside the authenticated group, so the gate had to become a hook

#reactnative #expo #security #mobile

5 min read

Daniel Pertu

Oct 15

Our API client has no idea what a store is, and that inversion is how the app notices its data went stale

#reactnative #typescript #architecture #mobile

5 min read

Daniel Pertu

Oct 15

Expo in a pnpm monorepo: one flat node_modules, two peer overrides, and the Metro flag you should not set

#expo #reactnative #node #typescript

5 min read

Daniel Pertu

Oct 15

Our label photos leave the phone at a 1,568 pixel long edge, and the crop happens before the resize

#reactnative #expo #mobile #performance

5 min read

Daniel Pertu

Oct 15

Our FAQPage markup and our FAQ markup are one array, because the price inside it changes per visitor

#seo #nextjs #typescript #webdev

4 min read

Daniel Pertu

Oct 15

Fifteen numbers on one admin page, one round trip, and a row count Postgres never counts

#postgres #sql #nextjs #typescript

5 min read

Daniel Pertu

Oct 15

Shipping a feature means editing the data export, and deciding which columns are not about the user

#nextjs #typescript #postgres #webdev

4 min read

Daniel Pertu

Oct 15

The data is in git, the progress is in localStorage, and neither of them is in the database

#typescript #nextjs #webdev #javascript

5 min read

Daniel Pertu

Oct 15

Somebody else's report is a 404, and the user id is in the where clause rather than in an if

#nextjs #webdev #security #typescript

4 min read

Daniel Pertu

Oct 15

The list shows two numbers, so the query digs them out of the JSON instead of loading a hundred attempts

#postgres #sql #typescript #nextjs

4 min read

Daniel Pertu

Oct 15

A review still marked "processing" after two minutes was killed sixty seconds in

#nextjs #serverless #webdev #typescript

4 min read

Daniel Pertu

Oct 15

Our results screen only lived as long as the tab, so we gave it a URL and ended up with one shape and three renderers

#nextjs #react #typescript #webdev

4 min read

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