localstack/localstack-docs

[📑 Docs]: Expand page: Lambda + S3 Image Resizer (Hot Reload)

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#237 opened on Sep 25, 2025

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Description

What docs changes are you proposing?

Source: https://github.com/localstack-samples/sample-lambda-s3-image-resizer-hot-reload

Problem

Currently linked repo only.

Proposal

  • Add tutorial page with:
    • Introduction (upload image to S3, Lambda resizes, hot reload support)
    • Prerequisites (LocalStack Pro, Node.js/Python runtime, Docker)
    • Architecture diagram (S3 input → Lambda → S3 output)
    • Steps (clone repo, deploy, upload sample image, edit code for hot reload)
    • Testing the application (download resized image, verify dimensions, re-upload after code change and confirm new size)
    • Conclusion (serverless image pipeline patterns)

Acceptance Criteria

  • Doc page structured like other tutorials with explicit Testing the application steps.

Code of Conduct

  • I agree to follow this project's Code of Conduct

Contributor guide

Research direction
Create a tutorial page for the Lambda + S3 image resizer with hot reload, following the existing tutorial structure and including introduction, prerequisites, architecture diagram, steps, testing, and conclusion.
Tech stack
pythonnodejsdockeraws
Domain
backendapiclouddocumentation
Issue type
Documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitDockerNode.js/Python
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
90