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Monitoring & Logging: Track API Usage

Monitor your API integrations like a pro. Master the analytics dashboard, error tracking, usage alerts, custom metrics, and observability best practices for production-grade systems.

Sarah Johnson
May 18, 2025
11 min read

TL;DR

  • AppHighway Analytics Dashboard tracks all API usage, costs, and performance metrics
  • Set up usage alerts: get notified when points drop below threshold or API errors spike
  • Error tracking: identify which APIs fail most often and why
  • Custom metrics: export usage data to external monitoring tools (Datadog, Grafana)
  • Real-time logs: debug API calls with request/response inspection
  • Cost analysis: identify which APIs consume the most points and optimize

Why Monitoring Matters

Production systems require visibility. Without monitoring, you're flying blind—unaware of errors, cost spikes, or performance degradation until users complain. AppHighway's analytics dashboard provides real-time insights into API usage, errors, and costs, enabling proactive management and optimization.

Analytics Dashboard Overview

The AppHighway dashboard provides comprehensive insights into your API usage.

Usage Metrics

Track total API calls, points consumed, and request volume over time

Insights: Identify usage trends, peak hours, and seasonal patterns

Cost Tracking

Monitor points consumption per API and per day/week/month

Insights: Identify most expensive APIs and optimize workflow

Error Rates

Track failed requests, error types, and success rates per API

Insights: Detect reliability issues early and fix before impact

Response Time

Monitor average API response times and latency percentiles

Insights: Identify slow APIs and optimize performance bottlenecks

Error Tracking & Debugging

Identify and resolve API errors quickly with comprehensive error tracking.

Common Error Types

401 Unauthorized: Invalid or expired API token

429 Too Many Requests: Rate limit exceeded

402 Payment Required: Insufficient points balance

400 Bad Request: Invalid input parameters

500 Internal Server Error: API processing failure

Debugging Workflow

Step 1: Identify error pattern in dashboard (which API, frequency, time)

Step 2: Inspect failed request details (headers, body, parameters)

Step 3: Check error message and status code for root cause

Step 4: Test fix in development environment

Step 5: Monitor production for resolution confirmation

Usage Alerts & Notifications

Stay informed with automated alerts for critical events.

Low Points Balance

Triggered when points balance drops below threshold (e.g., <100 points)

Action: Purchase more points before running out

Error Rate Spike

Triggered when error rate exceeds 10% within 1 hour

Action: Investigate and fix failing API calls

Unusual Usage Pattern

Triggered when API call volume exceeds 3x normal baseline

Action: Check for unexpected traffic or potential abuse

Token Expiration Warning

Triggered 7 days before API token expires

Action: Rotate token to avoid service disruption

Notification Channels

Email: Receive alerts via email (default)

Webhook: POST alerts to custom endpoint for integration with Slack, PagerDuty

SMS: Critical alerts via SMS (premium feature)

Custom Metrics & Export

Export AppHighway metrics to external monitoring and observability platforms.

Datadog Integration

Forward metrics to Datadog for centralized monitoring

Metrics: API call count, error rate, response time, points consumed

Grafana Dashboards

Build custom dashboards with Prometheus metrics

Use case: Visualize API usage alongside other infrastructure metrics

AWS CloudWatch

Send metrics to CloudWatch for AWS-native monitoring

Use case: Unified monitoring for Lambda + AppHighway tools

New Relic APM

Track API calls as distributed traces in APM

Use case: End-to-end request tracing across services

Real-World Example: E-commerce Monitoring Setup

Scenario: E-commerce platform processing 10,000 orders/day with AppHighway tools

Monitoring Setup

Dashboard: Track points consumption per API (Structify, Email Validator, etc.)

Alerts: Low points warning (<500 pts), error rate spike (>5%)

Logs: Enable request logging for failed Structify calls

Metrics: Export to Datadog for unified infrastructure monitoring

Reports: Weekly cost analysis email to finance team

Incident Example

Problem: Error rate spiked to 30% at 2 AM, 300 failed Structify calls

Detection: Alert fired within 5 minutes via email + Slack webhook

Diagnosis: Dashboard logs showed 400 Bad Request errors—invalid JSON input

Resolution: Fixed upstream data validation bug in order parser

Outcome: Error rate dropped to 0.1% within 30 minutes, prevented 2,000+ failed orders

Monitoring Best Practices

Set up alerts BEFORE going to production—don't wait for outages

Monitor golden signals: latency, traffic, errors, saturation

Review dashboard weekly to identify optimization opportunities

Enable request logging for critical APIs (can be disabled for cost savings)

Export metrics to external tools for long-term trend analysis

Document incident response procedures—know what to do when alerts fire

Test alert thresholds in staging before deploying to production

Logging Levels & Retention

Minimal Logging (Free)

Includes: API call count, success/failure status, points consumed

Retention: 7 days

Standard Logging (Included)

Includes: All minimal + error messages, response times

Retention: 30 days

Detailed Logging (Premium)

Includes: All standard + request/response bodies, headers, IP addresses

Retention: 90 days

Use case: Debugging complex issues, compliance audits

Next Steps

Start monitoring today

Explore Analytics Dashboard

View your current API usage, costs, and error rates in real-time.

Configure Usage Alerts

Set up notifications for low points balance and error rate spikes.

Visibility Prevents Outages

Monitoring transforms reactive firefighting into proactive management. With the analytics dashboard, error tracking, and usage alerts, you'll catch issues before they impact users. Set up monitoring on day one—your future self will thank you.

Ready to monitor your tools? Explore the analytics dashboard and configure your first alert.

Monitoring & Logging: Track API Usage | AppHighway Advanced Guide