Simple bash API perf test

gistfile1.txt

#!/bin/bash

# Variables
URL=""
BEARER_TOKEN=""
API_KEY=""
NUM_REQUESTS=100

# Array to store latencies
latencies=()

# Perform requests
echo "Starting performance testing..."
for ((i=1; i<=NUM_REQUESTS; i++)); do
  start_time=$(date +%s%3N)
  
  # Send request
  response=$(curl -s -o /dev/null -w "%{http_code}" \
    -H "Authorization: Bearer $BEARER_TOKEN" \
    -H "x-api-key: $API_KEY" \
    "$URL")
  
  end_time=$(date +%s%3N)
  latency=$((end_time - start_time))
  
  # Store latency
  latencies+=("$latency")
  
  # Output progress
  echo "Request $i: $latency ms (HTTP $response)"
done

# Calculate average latency
average=$(printf "%s\n" "${latencies[@]}" | awk '{sum += $1} END {print sum/NR}')

# Calculate median latency
sorted_latencies=($(printf "%s\n" "${latencies[@]}" | sort -n))
count=${#sorted_latencies[@]}
if (( count % 2 == 0 )); then
  # Even number of latencies
  mid1=${sorted_latencies[$((count / 2 - 1))]}
  mid2=${sorted_latencies[$((count / 2))]}
  median=$(((mid1 + mid2) / 2))
else
  # Odd number of latencies
  median=${sorted_latencies[$((count / 2))]}
fi

# Output results
echo "-----------------------------------"
echo "Performance Test Results:"
echo "Total Requests: $NUM_REQUESTS"
echo "Average Latency: $average ms"
echo "Median Latency: $median ms"
echo "-----------------------------------"