This extremely simple log library is intended for use with micro service applications, which have only two logging targets: the console while developing the application, and a log aggregation service in production.
This library was inspired by:
- The
fmtlibrary is not used to minimize memory allocations. - Logs to
stdoutby default. - Can be configured to send messages to a UDP log aggregator.
By default, log will emit messages on os.Stderr which is supposed to be
an unbuffered stream. The destination can be changed with:
log.SetOutput(os.Stdout)To prevent console logging from being visible at all, change the destination
to /dev/null:
devnull, err := os.OpenFile(os.DevNull, O_WRONLY, 0666)
if err != null {
panic(err)
}
defer devnull.Close()
log.SetOutput(devnull)To send output to a UDP log aggregator, just set the address and port of the service as follows:
log.SetServer("10.10.10.10:8080")Now every log message is formatted in JSON and will be sent to the aggregator:
log.Info("The quick brown fox")
// Output: {"time":1554370662469959000,"name":"main","level":"INFO","message":"The quick brown fox"} - Fork it
- Create a feature branch (
git checkout -b new-feature) - Commit changes (
git commit -am "Added new feature xyz") - Push the branch (
git push origin new-feature) - Create a new pull request.
Copyright 2019 Metaleaf.io
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.