Structured application logs
Six log levels, messages, structured parameters and nested-object inspection.
debuginfologwarnerrorcritical
APPLICATION LOGGING / BROWSER + NODE.JS
Application logs.
In context.
Find the error, follow related events and inspect the detail. App Tracker brings your logs, healthchecks and alerts into one shared workspace.
01 / RELATED EVENTS3 logs
- INFOCheckout openedcomponent: checkout
- ERRORPayment request failedcomponent: checkout · attempt: 1
- INFORetry completedcomponent: checkout · attempt: 2
One browser correlation ID connects these events.
02 / ERROR DETAILERROR
Payment request failed
{
"component": "checkout",
"attempt": 1,
"email": "[REDACTED]",
"accessToken": "[REDACTED]"
}Recognized sensitive values are masked.
THE WORKSPACE
Investigate the event.
Keep an eye on the application.
Collect structured logs, investigate errors and monitor application health in a shared workspace.
Log analytics dashboards
Log counts, severity breakdowns, activity charts and calendar views filtered by application and date.
Log search and event correlation
Text, severity, time-range and custom-property filters, saved searches, browser correlation IDs and JSON/XML exports.
Healthchecks and log alerts
Scheduled URL healthchecks and notification profiles with recipients, log levels and message conditions.
Team roles and access control
Company workspaces, application management, team roles and two-factor authentication.
Log storage and retention
Plan usage, storage consumption, retention policies and billing history.
SENSITIVE DATA, LESS EXPOSURE
Two layers of redaction.
Less sensitive data in your logs.
Sensitive-data redaction is built into both the app-tracker npm package and the backend. Recognized secrets and personal data are masked, and sensitive URL details are removed.
01
Before sendingThe package sanitizes log messages and structured parameters, including nested objects.
02
Before storageThe backend sanitizes incoming logs again. Log storage also uses encryption.
Recognized patterns include passwords, tokens, API keys, email addresses and IP addresses. Sensitive URL details are removed. Redaction is pattern-based: review what your application logs.
BUILT-IN LOG REDACTIONEXAMPLE
Logged parameters
{
"message": "Request failed",
"email": "alex@example.com",
"accessToken": "example-token",
"attempt": 2
} Sanitized parameters
{
"message": "Request failed",
"email": "[REDACTED]",
"accessToken": "[REDACTED]",
"attempt": 2
}INTEGRATION / APP-TRACKER
Your first log starts here.
Meet app-tracker, our TypeScript and JavaScript logging package for browser and Node.js applications.
- Configurable batching and immediate sending for selected log levels
- Retries, request timeouts and development-mode controls
- Built-in sensitive-data redaction
- Browser correlation IDs and an explicit flush for controlled Node.js shutdowns
npm install app-trackerQUICK STARTTypeScript / Browser
import { AppTracker } from 'app-tracker';
const tracker = AppTracker.init('YOUR_API_KEY', {
userAgentOrOs: navigator.userAgent,
sendLogsInDevelopment: false
});
tracker.error('Payment request failed', {
component: 'checkout',
attempt: 2
});SETUP
Start collecting application logs
- 01
Create your workspace
Register, set up your company and create an application to get its API key.
- 02
Connect your application
Install app-tracker, initialize it with your key and start sending events.
- 03
Make the data useful
Explore your dashboard, save useful searches and configure healthchecks and alerts.
A FEW PRACTICAL DETAILS
Application logging FAQ
How integration, log protection and monitoring work in App Tracker.
What is App Tracker?
App Tracker is an application logging and monitoring platform. It brings structured logs, analytics dashboards, saved searches, URL healthchecks and notification profiles into a company workspace.
How do I send logs from a browser or Node.js application?
Install the app-tracker npm package and initialize it with your application's API key. The package supports TypeScript and JavaScript, configurable batching and retries. See the npm installation and browser quick start, or the package documentation for Node.js configuration.
How are sensitive data protected in logs?
The npm package sanitizes messages and structured parameters before sending. The backend sanitizes incoming logs again, and log storage uses encryption. Recognized secrets and personal data are masked; sensitive URL details are removed. See the log redaction example. Pattern-based redaction does not replace reviewing the data your application logs.
Can I search logs and receive alerts?
Yes. Filter logs by text, severity, time range and custom properties, save searches and trace browser events through correlation IDs. Configure log notification profiles and scheduled URL healthchecks to monitor application issues.
Does this landing page track visitors?
The landing-page code does not use visitor analytics, tracking cookies or the App Tracker logging package. Technical hosting data may still be processed to deliver and secure the website. Read the landing-page privacy policy for details.
READY TO CONNECT YOUR APPLICATION?