bootstrap

#!/bin/sh

set -euo pipefail

# Processing Loop
while true
do
  echo "handler: $_HANDLER"
  HEADERS="$(mktemp)"
  # Get an event. The HTTP request will block until one is received
  EVENT_DATA=$(curl -sS -LD "$HEADERS" -X GET "http://${AWS_LAMBDA_RUNTIME_API}/2018-06-01/runtime/invocation/next")
  echo "event data: $EVENT_DATA"

  # Extract request ID by scraping response headers received above
  REQUEST_ID=$(grep -Fi Lambda-Runtime-Aws-Request-Id "$HEADERS" | tr -d '[:space:]' | cut -d: -f2)
  echo "request id: $REQUEST_ID"

  # Execute the handler function from the script
  export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$LAMBDA_TASK_ROOT/lib
  echo "LD_LIBRARY_PATH: $LD_LIBRARY_PATH"
  echo "ls -lh $(pwd) (current working dir)"
  echo "$(ls -lh .)"
  #RESPONSE=$($_HANDLER)
  RESPONSE=$(/var/task/hello-world)
  
  # Necessary API Gateway response format
  JSON_RESPONSE='
  {
    "isBase64Encoded": false,
    "statusCode": 200, 
    "body": "'"$RESPONSE"'" 
  }'

  # Send the response
  curl -X POST "http://${AWS_LAMBDA_RUNTIME_API}/2018-06-01/runtime/invocation/$REQUEST_ID/response"  -d "${JSON_RESPONSE}"
done