AG Digitalz field guide

APIs are how business systems talk to each other.

An API lets a website send data to a CRM, ask AI for a summary, create a task, send an alert, or pull records into a dashboard.

By AG DigitalzPublished Updated
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What it does

APIs

APIs are the invisible connections that make a website behave like a real business system instead of a static brochure.

Stack to use

Recommended setup

  • Frontend form
  • Backend endpoint
  • Authentication or API key
  • JSON request/response
  • Error handling
  • Logs
  • Retry plan
Common mistakes

What to avoid

  • Calling private APIs from frontend code.
  • No validation.
  • No error messages.
  • No retry plan.
  • No logs.

Implementation

Build the workflow step by step.

Connect the smallest useful flow first, make ownership clear, then measure it before expanding.

01

Step 1

Decide what data needs to move.

02

Step 2

Create the backend endpoint.

03

Step 3

Validate the incoming fields.

04

Step 4

Authenticate the request when needed.

05

Step 5

Call the external API.

06

Step 6

Handle failures clearly.

07

Step 7

Log the result for debugging.

Primary sources

Official documentation behind this guide.

Use these sources to verify capabilities, limits, and setup details before putting a workflow into production.

Official source

MDN API intro

Reference documentation used for this AG Digitalz field guide.

Open source
Official source

OpenAI API docs

Reference documentation used for this AG Digitalz field guide.

Open source