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Telemetry
About Telemetry

Your application events, ready to query with SQL

Telemetry turns JSON events from your application into tables. Query them with SQL, build charts and dashboards, export the results, or set an alert. A coding agent can add the instrumentation to your codebase.

Each event has a table

Use consistent event names and fields. Query the table to debug a failure or measure usage. You can inspect the individual rows behind a result.

Read the SQL behind the chart

You can read and edit every query. Public recipes include the event schema, sample results, known edge cases, and advice on turning the query into a dashboard or alert.

Choose what you send

Our guides recommend categories and identifiers. They tell you to exclude prompts, credentials, request bodies, and private customer content unless your team explicitly approves sending them.

Editorial and technical review

What we check before publishing

We check the docs against our public API and application code. SQL recipes only read data. We also have an optional audit that checks whether DataFusion can plan each query.

We label sample rows and charts as synthetic. They show how a query works and do not measure customer results. Comparison pages link to the other product's documentation and show when we reviewed the claims.

We update a page's review date when we change its claims or guidance. Unchanged content keeps its date.

Read the complete editorial standards and technical review policy to see who reviews the content, which sources we use, and how to request corrections.

Try a query on your own events

Pick a SQL recipe, check which event fields it needs, and adapt the query to your application.