Getting Started with HTTPPing — Setup, Options, ExamplesHTTPPing is a lightweight command-line tool designed to check the availability and responsiveness of HTTP(S) endpoints. Unlike ICMP-based ping which measures basic network reachability, HTTPPing performs real HTTP requests and reports status codes, latency, and simple content checks — making it better suited for modern web services and APIs. This guide covers installation, configuration options, real-world examples, and practical tips to integrate HTTPPing into monitoring workflows.
Why use HTTPPing?
- Checks the actual HTTP layer: verifies web server responses (status codes, headers, body) rather than just network connectivity.
- Reports latency and response details: helps find slow endpoints even when they’re technically “up.”
- Flexible checks: can validate status codes, search for strings in responses, follow redirects, and use custom headers or methods.
- Lightweight and scriptable: ideal for CI, cron jobs, containers, and automation pipelines.
Installation
HTTPPing is commonly distributed as a single binary for multiple platforms. The exact installation method varies by project distribution; the general approaches are:
- Download the prebuilt binary for your OS (Linux, macOS, Windows), make it executable, and place it in your PATH.
- Install via a package manager if available (Homebrew on macOS, apt/yum on Linux distributions if provided).
- Build from source (often Go-based projects use go install).
Example (macOS/Homebrew style):
brew install httping
Example (manual download on Linux):
wget https://example.com/httping-linux-amd64 -O /usr/local/bin/httping chmod +x /usr/local/bin/httping
If building from source (Go):
go install github.com/example/httping@latest
Basic usage
The simplest use is to request a URL and report status and timing:
httping https://example.com
Typical brief output shows status code, time to first byte (TTFB) or full response time, and basic success/failure.
Common flags:
- -c, –count N : number of requests to send
- -i, –interval S : pause S seconds between requests
- -m, –method METHOD : HTTP method (GET, HEAD, POST)
- -H, –header “Name: value” : add custom header
- -d, –data “payload” : send request body (for POST/PUT)
- -k, –insecure : skip TLS certificate validation (not recommended except testing)
- -L, –follow : follow redirects
- -t, –timeout S : request timeout in seconds
Example: send 5 requests, 2 seconds apart:
httping -c 5 -i 2 https://example.com
Advanced options
- Content checks: validate that a response body contains a specific string or matches a regex. Useful for verifying that an endpoint returns the expected page or JSON field.
httping --contains "Welcome" https://example.com
- Status validation: accept only specific status codes (for instance, treat 301 as success if you expect redirects).
httping --expected 200,301 https://example.com
- Custom TLS settings: specify client certs or CA bundles for mTLS or private CAs.
httping --cacert /path/ca.pem --cert /path/client.pem --key /path/client.key https://internal.example
- Parallel/concurrent checks: some implementations let you run multiple checks concurrently to stress-test or measure variability.
httping --concurrency 10 -c 50 https://api.example.com
- JSON output / machine-readable formats: for integrating with monitoring systems or parsers, request JSON or CSV output.
httping --output json https://example.com
Examples
- Simple uptime check in cron (every minute): “`bash
- * * * * /usr/local/bin/httping -c 1 –timeout 5 –output json https://example.com > /var/log/httping-example.log 2>&1 “`
-
CI health check before deployment (fail build if endpoint not OK):
httping -c 3 --timeout 3 --expected 200 https://staging.example.com || { echo "Health check failed"; exit 1; }
-
Monitor an API that requires a header and POST body:
httping -m POST -H "Authorization: Bearer $API_TOKEN" -H "Content-Type: application/json" -d '{"ping":true}' https://api.example.com/health
-
Follow redirects and check content:
httping -L --contains "Service OK" https://short.example/redirect
-
Use in a systemd service for continuous checks and logging: Create /etc/systemd/system/httping-monitor.service “`ini [Unit] Description=HTTPPing monitor for example.com
[Service] ExecStart=/usr/local/bin/httping –interval 10 –output json https://example.com
Restart=always RestartSec=5 StandardOutput=append:/var/log/httping-monitor.log
[Install] WantedBy=multi-user.target “`
Interpreting results
- 2xx status codes: generally success. Look at latency values to detect degradation.
- 3xx: redirects — may be acceptable if you follow redirects; otherwise treat as special-cased success.
- 4xx/5xx: client or server errors — investigate server logs, rate limits, authentication.
- Timeouts/connection errors: could be network issues, DNS problems, or the server overloaded. Try increasing verbosity to see curl-like error messages.
Integrating with monitoring and alerting
- Send JSON output to a small script that pushes metrics to Prometheus Pushgateway, InfluxDB, or a monitoring API.
- Use exit codes to trigger alerts in CI or automation pipelines.
- Combine with PagerDuty/Slack webhooks by wrapping HTTPPing output in a short script that posts when checks fail.
- For long-term metrics use: run periodic checks and store response times and statuses in a time-series DB to set thresholds and detect trends.
Security considerations
- Avoid storing sensitive tokens in scripts; use environment variables or secure stores.
- Don’t skip TLS verification in production (-k/–insecure) except for controlled testing.
- Rate-limit checks against third-party APIs to avoid being blocked.
- For internal endpoints, use mTLS or client certs where appropriate.
Troubleshooting tips
- Increase verbosity or use a packet capture (tcpdump) to diagnose connection issues.
- Verify DNS resolution separately (dig/nslookup).
- Test with curl or httpie to compare responses and headers.
- Check server logs for 4xx/5xx errors tied to the requests’ timestamps.
Conclusion
HTTPPing is a practical, scriptable tool for validating web endpoints at the HTTP layer. Use it for simple uptime checks, CI gating, or lightweight monitoring. Start with conservative intervals and timeouts, validate expected status codes and content, and integrate output with your existing monitoring or alerting stack for the best results.
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