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0da8bef69e
* Update log for passing attrs with context. * Check type-casting * add tests. * Use t.Cleanup() to restore the global value. * Fix error. * Update tests. * Add comments. * Remove cover.cov * Update doc. * Update git ignore.
42 lines
717 B
Go
42 lines
717 B
Go
package log
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import (
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"context"
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"log/slog"
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)
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var defaultLogger *slog.Logger
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func init() {
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defaultLogger = slog.Default()
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}
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type loggerKeyType string
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const loggerKey loggerKeyType = "logger"
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func getLogger(ctx context.Context) *slog.Logger {
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if ctx == nil {
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return defaultLogger
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}
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logger := ctx.Value(loggerKey)
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if logger == nil {
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return defaultLogger
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}
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ret, ok := logger.(*slog.Logger)
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if !ok {
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return defaultLogger
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}
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return ret
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}
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// WithAttrs creates a new context containing a new logger with [args] as logging attributes.
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func WithAttrs(ctx context.Context, args ...any) context.Context {
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old := getLogger(ctx)
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new := old.With(args...)
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return context.WithValue(ctx, loggerKey, new)
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}
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