Available Layers

Quick Start

Using Pre-built Layers

# serverless.ymlprovider:layers:    -arn:aws:lambda:us-east-1:ACCOUNT:layer:ql4b-shell-qrencode:1    -arn:aws:lambda:us-east-1:ACCOUNT:layer:ql4b-shell-htmlq:1functions:handler:environment:PATH:"/opt/bin:${env:PATH}"

Building Your Own

# Build specific layercd qrencode&& ./build.sh# Build all layers./scripts/build-all.sh# Deploy layer to AWS./scripts/deploy-layer.sh qrencode

Layer Structure

/opt/├── bin/           # Executable binaries└── lib/           # Shared libraries (if needed)

Usage Examples

QR Code Generation

# In your Lambda functionapi_handler() {local text="$1"    qrencode -o /tmp/qr.png"$text"echo"QR code generated at /tmp/qr.png"}

HTML Parsing

# Extract data from HTMLapi_handler() {local html="$1"echo"$html"| htmlq'.title' --text}

HTTP Requests

# Make HTTP requestsapi_handler() {local response=$(http-cli --header"Content-Type: application/json" https://api.example.com)echo"$response"| jq'.data'}

Pattern Matching

# Find patterns in textapi_handler() {local text="$1"echo"$text"| pcre2grep -o"[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,}" --ignore-case}

Generate UUIDs

# Generate a UUIDapi_handler() {local uuid=$(uuidgen)echo"Generated UUID:$uuid"}

Building Layers

Build Requirements

Integration with Terraform

# Reference pre-built layerdata"aws_lambda_layer_version""qrencode" {layer_name="ql4b-shell-qrencode"}# Use in functionresource"aws_lambda_function""handler" {layers=[data.aws_lambda_layer_version.qrencode.arn]environment {variables={      PATH="/opt/bin:${env:PATH}"    }  }}

Contributing

Layer Compatibility