Zero Allocation JSON Logger

Who uses zerolog

Features

Installation

Getting Started

Simple Logging Example

Contextual Logging

Leveled Logging

Simple Leveled Logging Example

Setting Global Log Level

Logging without Level or Message

Error Logging

Error Logging with Stacktrace

Logging Fatal Messages

Create logger instance to manage different outputs

Sub-loggers let you chain loggers with additional context

Pretty logging

Sub dictionary

Customize automatic field names

Add contextual fields to the global logger

Add file and line number to log

Thread-safe, lock-free, non-blocking writer

Log Sampling

Hooks

Pass a sub-logger by context

Set as standard logger output

context.Context integration

Integration with `net/http`

Multiple Log Output

Global Settings

Field Types

Standard Types

Advanced Fields

Binary Encoding

Related Projects

Benchmarks

Caveats

Field duplication

Concurrency safety