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Platformatic DB uses a low overhead logger named Pino to output structured log messages, which are efficient and easy to parse both programmatically and visually.

Logger output level

The default logging level is set to info. This means that all log messages from info level and above (warn, error, fatal) will be displayed. To override the logger output, add a logger object in the server configuration settings:

"server": {
"logger": {
"level": "error"

For a full list of log levels and their meanings, see the Pino documentation.

Log formatting

Logs are automatically pretty-printed by pino-pretty to improve readability when running Platformatic DB in a terminal environment where standard out stdout supports TTY

$ npx platformatic db start
[11:20:33.466] INFO (337606): server listening
url: ""

In non-TTY environments, such as when logs are redirected to a file or a log management system, logs are formatted as newline-delimited JSON for easier parsing:

$ npx platformatic db start | head
{"level":30,"time":1665566628973,"pid":338365,"hostname":"darkav2","url":"","msg":"server listening"}

Query Logging

Enable detailed query logging by setting the log level to trace. This is especially useful during development for monitoring the queries executed against the database:

[12:09:13.810] INFO (platformatic-db/9695): incoming request
[12:09:13.819] TRACE (platformatic-db/9695): query
query: {
"text": "SELECT \"id\", \"title\"\n FROM \"movies\"\nLIMIT ?"
[12:09:13.820] INFO (platformatic-db/9695): request completed
responseTime: 10.350167274475098

Note extensive logging, especially at the trace level, can impact performance and should be used judiciously in production environments.


If you run into a bug or have a suggestion for improvement, please raise an issue on GitHub or join our Discord feedback channel.