Logs

Last updated 04 November 2026

What the app writes to stdout and stderr, from all its deployments. dudbox keeps 3 days. Build logs are on the deployment: see Deployments.

The examples use API=https://dudbox.com/api/v1 and AUTH="Authorization: Bearer $DUDBOX_TOKEN".

GET /api/v1/services/{project}/{service}/logs

The newest lines, oldest first:

curl -s "$API/services/acme/shop/logs?lines=50" -H "$AUTH"

{
  "lines": [
    { "time": "2026-11-04T09:31:10.120Z", "deployment": 44, "stream": "out", "message": "listening on :8080" },
    { "time": "2026-11-04T09:31:11.004Z", "deployment": 44, "stream": "err", "message": "warning: cache is cold" }
  ]
}

Query parameters, all optional:

• lines: how many of the newest lines, 1 to 5000. Default 200.
• since, until: only lines in this time, like 2026-11-04T09:00:00Z.
• deployment: only lines of one deployment. Use it to see why a new version did not start.
• follow=true: keep the connection open. The answer is then a stream of server-sent events, not JSON:
  • line: one line, the same object as above.
  • end: sent once, after the old lines ("history"). New lines follow as the app writes them.

curl -sN "$API/services/acme/shop/logs?follow=true&lines=20" -H "$AUTH"

Secret env values are not masked in app logs: the app writes what it writes.