Hook
Category: Infrastructure“HOOK”
A spot in a program that is left open on purpose so extra code can run before, during, or after a step.
Lesson #8: The Builder's Toolkit: Hooks, Plugins, APIs & SDKs →A stud in the wall with a hanger already on it — you can hang something there without tearing the wall open.
A phone case slot that lets you add a card holder: the case was built expecting you to attach something.
A hook in the estimating tool runs a safety-margin check every time a bid total is calculated.
A hook fires after every new customer record is saved, adding them to the welcome email sequence.
Hooks let you customize software without rewriting it, so upgrades don't erase your changes.
A hook is a planned opening in software where your own logic can run.
Find one step in a tool you use where you always do a manual extra check. That step wants a hook.
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Related terms
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An automatic message one app sends to another the moment something happens, so nobody has to keep checking for updates.
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An add-on you install to give a program a new ability it did not ship with, without changing the program itself.
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A ready-made bundle of code, tools, and instructions that makes it much faster to build on top of somebody else's system.
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A common, predictable way for programs to ask each other for information or to make a change, using plain web addresses.
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Getting into a company by compromising something it depends on — a vendor, a plugin, or a piece of borrowed code.
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One specific address in an API that does one specific job, like listing customers or creating an invoice.
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