Last updated 6 days ago

Send logs to Timber via the Timber HTTP API

Timber has a rich HTTP API that you can use to send logs to the Timber platform.

Timber offers language level libraries and support for log forwarders that handle the efficient and reliable delivery of your log data. We highly recommend using those when possible.


Forwarding logs to Timber is highly specific to your HTTP client. Below are a few examples, as well as best practices. If possible, we recommend following our language, log forwarder, operating system, or platform integrations, as log delivery is handled for you in all of these.


Authorization: Bearer YOUR_API_KEY
Content-Type: application/ndjson
{"level": "debug", "message": "Testing the pipes"}
{"level": "debug", "message": "Testing the pipes again"}
curl \
--request POST \
--header 'Authorization: Bearer YOUR_API_KEY' \
--header "Content-Type: application/ndjson" \
--data '{"level": "debug", "message": "Testing the pipes"}
{"level": "debug", "message": "Testing the pipes again"}' \

Getting Your API Key And Source ID

If you haven't already, please create a Timber source by following the Sending Logs guide. Timber will display your API key and source ID immediately after you create a source.


Be sure to use the Bearer strategy. Do not encode your API key in any way.

Timber requires the Authorization header using the Bearer strategy as shown above in the example. Your API key does not need to be base64 encoded, you can simply copy and paste it as shown above.

Buffering & Batching

Always buffer and batch your log data to Timber. Do not send lines individually as this is extremely inefficient; you'll quickly tax your application. Timber recommends flushing your buffer every 2 seconds or until it's size reaches 950kb. Timber will not accept requests larger than 1mb.

Accepted Content Types

Timber accepts the following content types (ordered by preference):

Expected Response Codes

  1. 202 - Success, logs accepted.

  2. 400 - Request invalid, usually due to a bad content-type.

  3. 401 - API key invalid.

  4. 402 - Subscription blocked or unpaid. Please update your subscription.

  5. 500 - Timber service error.

Timber Libraries

If you don't want to do this yourself you can use one of Timber's language libraries.


See the Limitations document for a comprehensive list.


To begin, please see our log delivery troubleshooting guide. This covers the most common issues we see with log delivery:

If the above guide does not resolve your issue please contact support.