Check health of services through APIs

services-healthcheck.sh

#!/bin/bash

############
# Functions
############

function is_api_healthy() {
  local api_endpoint=${1}
  local api_name=${2}
  local status_code=$(/usr/bin/curl -sL --max-time 5 -w "%{http_code}\n" "$api_endpoint" -o /dev/null)

  if [ "$status_code" -ne "200" ]; then
    echo "$api_name ❌ [HTTP $status_code] $api_endpoint"
    return 1
  else
    echo "$api_name ✅ healthy"
    return 0
  fi
}

#########
# Script
#########

# Define your target APIs
services=(1)
declare -a name=(
  [1]="service-alerts-subscription"
  # (add new endpoints here)
)
declare -a endpoint=(
  [1]="https://service-alerts-subscription.apps.dev.eu-central-1.mercury.ORGANISATION.org/api/health"
  # (add new endpoints here)
)

echo "Starting healthcheck... 🌡"

# Check if APIs are healthy
total_failures=0
for service in "${services[@]}"; do
  is_api_healthy ${endpoint[$service]} ${name[$service]}
  num_failure=$?
  total_failures+=$num_failure
done

exit $total_failures