logs-go is a logging library wrapped around zerolog.
It sacrifices a bit of zerolog's advantage of low allocation and instead improves usability. In most cases, it can be used as-is, but in situations where performance must be pursued, it is also possible to call zerolog's API.
Source:
package main
import logs "github.com/rtkym/logs-go"
func main() {
logs.Set("key", "val")
logs.V("foo", "1").Info("hoge")
logs.V("bar", "2").Info("fuga")
}Output:
{"level":"info","key":"val","foo":"1","time":"2022-08-16T14:05:47.215002900+09:00","message":"hoge"}
{"level":"info","key":"val","bar":"2","time":"2022-08-16T14:05:47.263814600+09:00","message":"fuga"}
Source:
package main
import logs "github.com/rtkym/logs-go"
func main() {
logger := logs.New()
logger.Set("key", "val")
logger.V("foo", "1").Info("hoge")
logger.V("bar", "2").Info("fuga")
}Output:
{"level":"info","key":"val","foo":"1","time":"2022-08-16T14:10:41.535728100+09:00","message":"hoge"}
{"level":"info","key":"val","bar":"2","time":"2022-08-16T14:10:41.575108000+09:00","message":"fuga"}
ctx := context.Background()
logCtx := &optctx.OptCtx{ /* some configuration options */}
ctx = optctx.NewContext(ctx, logCtx)
logger := optctx.NewLogger(ctx)Supported values for the environment variable LOG_LEVEL are trace, debug, info, warning, error and fatal. default value is info.
Supported values for the environment variable LOG_FORMAT are json and console. default value is json.
logger := logs.New()
logger := logs.NewWithOption()
logger := logs.NewWithOption(logs.OptionWriter("json"))
logger := logs.NewWithOption(logs.OptionJSONWriter())logger := logs.NewWithOption(logs.OptionWriter("console"))
logger := logs.NewWithOption(logs.OptionConsoleWriter())buf := &bytes.Buffer{}
logger := logs.NewWithOption(func(opt *logs.Option) { opt.Writer = buf })