---
title: "AWS Lambda — Definition | FourSight Glossary"
url: https://foursight.cloud/glossary/aws-lambda
description: "Amazon's serverless function-as-a-service product — runs your code in response to events without you managing servers. Has measurable cold-start latency…"
lang: en
---

Back to glossary: https://foursight.cloud/glossary

Platforms

# AWS Lambda

Amazon's serverless function-as-a-service product — runs your code in response to events without you managing servers. Has measurable cold-start latency the first time a function runs after idle.

Source

- AWS Docs — AWS Lambda Developer Guide (https://docs.aws.amazon.com/lambda/latest/dg/welcome.html)

Related guide: Monitoring AWS Lambda & API Gateway: https://foursight.cloud/guides/monitoring-aws-lambda-apis

## Related terms

Stripe Webhook

An HTTPS POST that Stripe sends to your endpoint when a billing event occurs.
https://foursight.cloud/glossary/stripe-webhook

Stripe Events API

An API that lets you fetch and replay past Stripe events — essential for recovering after a webhook outage…
https://foursight.cloud/glossary/stripe-events-api

Supabase Auth

Supabase's hosted authentication service — email/password, OAuth, magic links, MFA — built on top of Postgr…
https://foursight.cloud/glossary/supabase-auth

Supabase Realtime

A WebSocket-based service that streams Postgres changes (INSERT/UPDATE/DELETE), broadcast messages, and pre…
https://foursight.cloud/glossary/supabase-realtime

Supabase Edge Functions

Deno-based serverless functions deployed globally and invoked over HTTPS.
https://foursight.cloud/glossary/supabase-edge-functions

Postgres Connection Pool

A managed set of pre-opened Postgres connections shared across application requests.
https://foursight.cloud/glossary/postgres-connection-pool

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