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View logs from your backend functions in the terminal. By default the command returns the 50 most recent log entries across all functions in your project. Use flags to filter by function name, time range, or adjust the number of results.

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Usage

base44 logs
This command must be run from your project directory. The CLI reads your .app.jsonc file to determine which app to fetch logs for. There’s no flag to specify an app ID directly, so if you manage multiple projects, navigate to the correct one first.

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Flags

FlagDescription
--function <names>Filter by function name. Accepts a comma-separated list. If omitted, fetches logs for all project functions.
--since <datetime>Show logs from this time onward. Accepts ISO 8601 format.
--until <datetime>Show logs up to this time. Accepts ISO 8601 format.
-n, --limit <n>Maximum number of results to return, between 1 and 1000. Defaults to 50.
--order <order>Sort order: asc or desc. Defaults to desc.

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Output format

The output is a list of log entries sorted by time. Each entry shows the timestamp, level, function name in brackets, and log message. For example: 
Showing 4 function log entries

2026-02-24 08:23:37 ERROR [send-email] Failed to deliver to user@example.com: connection timed out
2026-02-24 08:23:37 INFO  [send-email] Sending welcome email to user@example.com
2026-02-24 08:23:36 INFO  [process-order] Order #1042 processed successfully
2026-02-24 08:23:36 DEBUG [process-order] isolate start time: 350.47 ms (user time: 69.32 ms)
The log level reflects the console method used in your function code:
Console methodLog level
console.logINFO
console.infoINFO
console.errorERROR
console.warnWARNING
console.debugDEBUG
The output also includes system-level entries from Deno Deploy, such as isolate startup times. The log level for these entries is assigned by Deno Deploy.

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See also