Golang zap middleware. But this can quickly become repetitive and inconsistent.

Golang zap middleware ZapLogger is an example of echo middleware that logs requests using logger "zap" - echo_zap. Mar 29, 2023 · I'm working in a project using Gin and recently started implementing a logger through the project. Apr 1, 2025 · RecoveryWithZap returns a gin. com/gin-gonic/gin. Learn how to use Zap logger to create machine-parseable JSON logs that improve debugging and monitoring across microservices. Mar 15, 2023 · Once the gRPC logging middleware has added the gRPC specific Tags to the ctx they will then be written with the logs that are made using the `ctx_logrus` or `ctx_zap` loggers. Feb 4, 2025 · How to EFFICIENTLY Handle Errors in Golang APIs Below is a detailed guide on handling errors in Golang APIs efficiently and cleanly. Oct 12, 2024 · The otelgin middleware above simply takes the context of the http request and with a properly setup OpenTelemetry tracer and internal propagation of context, it will export to your tracing tool that supports OpenTelemetry. (Could factor it into defer recoverPanic() if you have to do it the verbose way. Nov 1, 2025 · Package logging is a "parent" package for gRPC logging middlewares. Middleware gRPC is a fantastic RPC middleware, which sees a lot of adoption in the Golang world. My approach is to create a separate package for zap logger’s configuration and initialization. Advanced Logging Strategy: Inject detailed contextual information into logs at the middleware level to trace the complete lifecycle of requests. Implemented as a zap encoder. Learn more about Golang logging, its benefits and more. Jul 5, 2016 · Doing the same defer-recover in each function would is the brute-force way, of course, but leaving this open in case there's a gRPC-specific way. go golang middleware echo grpc gin gin-middleware gorilla-mux grpc-middleware echo-middleware go-project-structure Updated Apr 9, 2024 Go gin-contrib / zap Star 480 Code Issues Pull requests Jun 9, 2023 · When building an application, a middleware is a code that hooks on the server-based request/response Tagged with go, webdev, beginners, http. - grpc-ecosystem/go-grpc-middleware gRPC Go has support for "interceptors", i. Also it provides wrapper functions implementation which can be useful a lot in case of changing zap to another logging tool. SugaredLogger) type Flagger type Middlewarer type PanicFunc Constants This section is empty. Feb 7, 2024 · Zap is a high-performance library for Go that offers a fast and efficient way to log messages in Go applications. Contribute to gin-contrib/zap development by creating an account on GitHub. gin-jwt: a middleware for Gin framework. You can access it via the middleware. Golang gRPC Middlewares: interceptor chaining, auth, logging, retries and more. They are added to zap logger metadata in http and grpc middleware. 3. https://github. InjectFields`. It is a perfect way to implement common patterns: auth, logging, tracing, metrics, validation, retries, rate limiting and more, which can be a great generic building Sep 16, 2018 · Step 1: Add Uber zap logger First step is to replace standard Go log by Uber zap. circuitbreaker - Circuit Breaker middleware for Fiber. Jun 30, 2025 · In the Go programming language, implementing middleware is a straightforward process, and this guide will walk you through the steps to create and integrate middleware in your Go web applications. Contribute to akath19/gin-zap development by creating an account on GitHub. Now() Golang gRPC Middlewares: interceptor chaining, auth, logging, retries and more. Any pointers would be appreciated as the documentation on gin's github wasn't too helpful. Sep 11, 2024 · func SetLoggerInContext (ctx huma. I really, really like zerolog. Logger` will be used for logging completed gRPC calls, and be populated into the `context. However, the upstream gRPC codebase is relatively bare bones. I use the same logger instance for logging directly and pass it in to my echo middleware with a bunch of custom options for HTTP logging. 2. However, most logging libraries also privide a way to inherit logger, say, creating child loggers with fields from its Middleware gRPC Go has support for "interceptors", i. Index func Ginzap (logger *zap. Submit your pull request, either with the package in a folder, or by adding a link to this README. Println I can see those Nov 29, 2016 · 10 I am building a web server in Golang. Now zap and slog have a lot of momentum, but I've deeply committed to zerolog, so no real reason to change anything. Functions func Ginzap func Ginzap(logger * zap. It's more convenient for developers who are used to printf -style logging but comes with a minor performance penalty. go redis golang elasticsearch middleware jwt kafka authentication log service rest-api configuration rate-limiting rsa authorization event-driven codebase graceful-shutdown go-chi hs256 Updated on Nov 7, 2023 Go Oct 23, 2021 · This works fine when you have only a few middleware handlers (which is typical), but if you find yourself adding many, you should try the Adapter pattern outlined in Mat Ryer's excellent article Writing Middleware in #golang and how Go makes it so much fun. Revolutionized my approach to structured logging in both go and java, and I rather like the API. RecoveryFunc) gin. You can extract/inject data in the propagated context using `logging. 1. casbin: An authorization library that supports access control models like ACL, RBAC, ABAC in Golang. Context has a Value method to keep variables under a context. Custom Middleware func Logger() gin. Create a slog handler using zap logger with the zaphandler tool by chanchal1987. Code structure based on ginrus package. Golang HTTP logger middleware with color console output and structured logs - MadAppGang/httplog Alternatively, I also log manually using uber/zap logger but I haven't found a way to replace gin's logger with mine. Discover best practices for request processing, authentication, and modular HTTP handling. an request flow like this ： frist:before router middleware (query in cache,no found) -> controller -> after router middleware (save in cache) -> return second: before router middleware (query in cache,founded) ->return 🚨 slog: Zap handler. (by grpc-ecosystem) Grpc Golang Middleware generic-functions Library Logging Authentication Retries Testing Interceptor Source Code Suggest alternative Edit details May 21, 2018 · I want to cache response body. Like, in the auth middleware we can just do like: ctx := req. The Go standard library Request ID Request ID middleware generates a unique id for a request. com/chanchal1987/zaphandler zapr: starting with v1. Context in Golang is useful for timeouts but it’s also useful for structured logging ( among other things ) Here we’ve used a string as an example, but you can put anything in its In a typical RESTful application, you might encounter errors in any route such as: Invalid input from the user Database failures Unauthorized access Internal server bugs By default, Gin allows you to handle errors manually in each route using c. 21 introduced the log/slog package as a new standard, Zap remains a top choice for developers who need maximum performance and fine-grained control over their logging output. 0, both slog/logr and go-logr/logr APIs are supported by the same logger instance. go redis golang elasticsearch middleware jwt kafka authentication log service rest-api configuration rate-limiting rsa authorization event-driven codebase graceful-shutdown go-chi hs256 Updated on Nov 7, 2023 Go func ZapLogger func ZapLogger(log * zap. 22 Docker (and docker-compose) While Jun 6, 2024 · This document contains instructions on how to set up OpenTelemetry instrumentation in your Go applications and view your application traces in SigNoz. 21 where the new log/slog package for structured, leveled, and context-aware logging was one of the major highlights. echozap Middleware for Golang Echo framework that provides integration with Uber´s Zap logging library for logging HTTP requests. Context, logger *zap. Prerequisites: Go 1. Ctx(req. Sadly its a bit cumbersome to ensure the logging context is propagated in java because you dont have a convention around the context. HandlerFunc Constants This section is empty. Context` passed into gRPC handler code. fiberzap - Zap Jul 24, 2023 · I am using the uber/zap package for logging. Index func CustomRecoveryWithZap (logger ZapLogger, stack bool, recovery gin. The same `zap. Beego Uber Zap middleware. The middleware handles NewRelic insturmentation. Learn how to implement and utilize middleware in Chi, the lightweight Go web framework. Mar 14, 2023 · Request validation middleware: This middleware validates incoming requests to ensure that they meet certain criteria, such as HTTP method, headers, query parameters, and request body content. It is a perfect way to implement common patterns: auth, logging, tracing, metrics, validation, retries, rate limiting and more, which can be a great generic building blocks that make Mar 15, 2023 · It accepts a user-configured `zap. Mar 1, 2016 · Here below is the entry point of my web application written in Go using Labstack's Echo: gRPC Go has support for "interceptors", i. . Mar 28, 2025 · Logging interceptors: Available for both client and server, with support for popular logging libraries like zap, logrus, and slog. To put it simple, middleware allow you to extend the Gin framework with your own wish, the handler func will process the requests within the context. Error(err). Logger, timeFormat string, utc bool) gin. fiberi18n - Middleware for i18n support in Fiber. Bring your own router & middleware to enable incremental adoption across a large number of organizations. We will be using New Relic, Sentry, Prometheus and Grafana. Jun 21, 2024 · 5. Aug 6, 2018 · Package ginzap provides a logging middleware to get https://github. Mar 27, 2022 · The goal of observability is a holistic understanding of one or more application operations in distributed systems. Using Zerolog with Middleware Concept: Middleware in Go are functions that process requests before they reach the actual application logic, ideal for implementing systematic logging. fibernewrelic - NewRelic middleware for Fiber. The logger is stored on the request context Jul 3, 2024 · The golang go-grpc grpc. 后端: Gin: a web framework written in Go (Golang). stack means whether output the stack info. Context() log := zerolog. Context that should be inherited by all server gRPC call handlers. after calls to router-specific middleware. Context May 7, 2024 · 実は当初middlewareとして実装していたのですが、gin-contrib/zapがあることに気づき、 車輪の再発明をしていたことに気づきました。 Apr 22, 2020 · I am attempting to add some logging middleware to a grpc server, I am following the simple example on their github here. Logger) echo. I want to record which file and line number the Dec 19, 2023 · There's probably a 99% chance that if you're logging in Go, you're using a third-party logging framework since the built-in log package lacks even the most basic features required for production logging. Mar 8, 2023 · Building a Logger Wrapper in Go with Support for Multiple Logging Libraries When building a Go application, logging is an essential part of the development process. The Go standard library High performance, minimalist Go web framework. For monitoring, go-grpc-middleware integrates with Prometheus, providing both client and server metrics. Sep 15, 2025 · While Go 1. com/grpc-ecosystem/go-grpc Overview Package ginzap provides log handling using zap package. AtomicLevel LogLevel sets the current Zap root logger's level when using the logging middleware. Context object, but oh well. Definition and origin of Zap Zap was developed with the goal of providing a structured logger that can offer Oct 12, 2024 · The otelgin middleware above simply takes the context of the http request and with a properly setup OpenTelemetry tracer and internal propagation of context, it will export to your tracing tool that supports OpenTelemetry. Here, we'll explore some best practices for structuring a Gin project. Marshal and fmt. echozap Middleware for Golang Echo framework that provides integration with Uber´s Zap logging library for logging HTTP requests. context. In order to reduce mapping errors to response, my project gin-error is one middleware for error handling. If adding a package directly, don't forget to create a README. The goals of this project are to provide: Incremental adoption for teams with existing services Bring your own router (including Go 1. Logger, timeFormat string, utc bool) gin Which is the best alternative to go-grpc-middleware? Based on common mentions it is: Newman, Protobuf, Viper, Pgx, Validator, Zap, Golang/Mock, Grpc-web or Grpc-gateway Tại sao lại cần log ra file * Hiện tại đa số anh em develop khi phát triển chức năng phần lớn là chỉ logging ra console, sau đó lên các môi trường như dev, pro,. com/tjhop/slog-gokit. Sep 15, 2025 · On the other hand, zap. I saw a couple libraries but decided to go with uber's Zap. Router-agnostic - runs in the Huma processing chain, i. To solve this, we can use custom middleware to handle all errors in one place Aug 6, 2018 · Gin middleware to use Uber's Zap for logging. Aug 25, 2025 · Golang logging is the process of recording information about the execution of an application. SugaredLogger provides a less verbose and loosely-typed API (such as Infof() and Errorw()) that allows you write less code in your logging calls. Logger` that will be used for logging. But this can quickly become repetitive and inconsistent. Logging Middleware go golang middleware echo grpc gin gin-middleware gorilla-mux grpc-middleware echo-middleware go-project-structure Updated on Oct 4, 2024 Go May 17, 2024 · context. go Nov 8, 2025 · Using middleware Edit page Last updated: Nov 8, 2025 Previous Using BasicAuth middleware Next Without middleware by default Logger middleware for Fiber that logs HTTP request/response details. For example, you can use zap with Fiber logger middleware like this: feat: adding stream interceptor for logging middleware (#3359) feat (contrib/log/zap): If disable this level of logging entirely, avoid additional overhead (#3357) Jun 22, 2024 · The thing is echo only logs the requests and responses that are done to the application, when trying to log a custom message it dosent even log anything :/ A structured logger with output designed to be read by humans. Dec 10, 2023 · Overview Package ginzap provides log handling using zap package. Related Article: Optimizing and Benchmarking Beego ORM in Golang Separation of Concerns To keep your codebase organized and maintainable, it's important to gin-authz is an authorization middleware for Gin Go 821 60 Oct 10, 2021 · We introduce rk-boot which is a library can be used to create goLang micro-service with gRPC in a convenient way Logger bridges Zap Handler, a slog handler that uses Zap: https://github. Contribute to GNURub/beezap development by creating an account on GitHub. HandlerFunc (middleware) that recovers from any panics and logs requests using uber-go/zap. In API layer, I will use Fiber framework for building a simple service. MiddlewareFunc ZapLogger is a middleware and zap to provide an "access log" like logging for each request. Variables This section is empty. md. Dec 14, 2023 · By adopting best practices and leveraging various external logging libraries like `log`, `zerolog`, `zap`, `logrus`, `gofr`, and `slog`, developers can create well-structured logs that aid in monitoring, debugging, and maintaining the health of their Go applications. Aug 1, 2023 · Still using Jaeger/Sentry? Uptrace is an OpenTelemetry tracing tool that stores data in extremely Tagged with monitoring, programming, performance, go. This guide will take you from the fundamentals of Zap to advanced, production-ready patterns. Nov 3, 2021 · Gin 101: Logging middleware in Gin framework We will use rk-boot to add logging middleware in Gin framework. List of third party middlewares and maintained by the Fiber team and community. HandlerFunc { return func(c *gin. Sep 11, 2024 · Huma provides a Zap-based contextual structured logger as part of the default middleware stack. Feb 7, 2025 · RecoveryWithZap returns an iris. You know Golang has an context package and it's offically recommended to always pass a context as first argument. Usage High performance, minimalist Go web framework. Dec 19, 2023 · In this comprehensive guide, we'll delve into the Zap package and discuss many of its most useful features. Sep 28, 2023 · Now, let’s create a middleware. Gorm: The fantastic ORM library for Golang. Handler (middleware) that recovers from any panics and logs requests using uber-go/zap. It also plays well with OpenTelemetry for distributed tracing and additional metrics. Caching middleware: This middleware caches responses to certain requests to improve performance and reduce server load. Fprintf to log tons of interface {} makes your application slow. It reduces your issue to resolution time by providing… golang zap logger logrus gorm-logger fiber-middleware go-hclog Updated on Apr 20, 2022 Go echozap Middleware for Golang Echo framework that provides integration with Uber´s Zap logging library for logging HTTP requests. Logger` will be populated into the `context. All logging middleware will emit a final log statement. A superset of monitoring, that holds the ability to measure system internal state by its outputs, such as metrics, events, logs and traces. Error (). Context) { t := time. Mar 31, 2025 · Master structured logging in Go with this guide to best practices, efficient implementations, and performance optimization for enhanced application observability. Mar 15, 2023 · `grpc_middleware` is a collection of gRPC middleware packages: interceptors, helpers and tools. Mar 15, 2023 · Documentation Overview `grpc_zap` is a gRPC logging middleware backed by ZAP loggers It accepts a user-configured `zap. This package, and most of its child packages provides commonly needed middleware for gRPC: client-side interceptors for retires, server-side Alternative logging through zap. If adding a link to your own repository, please 5 days ago · Learn how to configure Middleware APM for Go applications to track performance, monitor requests, and debug errors effectively. GetLogger(ctx) which returns a *zap. For applications that log in the hot path, reflection-based serialization and string formatting are prohibitively expensive - they're CPU-intensive and make many small allocations. g. Zap is supported by gRPC middleware framework that is the reason to use it for this tutorial. md inside with author name. Feb 6, 2025 · A middleware. It is a structured logger, which means that it logs messages in a format, such as JSON, which can be easily parsed by other tools. middleware that is executed either on the gRPC Server before the request is passed onto the user's application logic, or on the gRPC client either around the user call. 5 days ago · Package zap provides fast, structured, leveled logging. Introduce rk-boot rk-boot is a library used to create goLang micro-service with Gin … Mar 27, 2022 · In this article, we will look into Structured Logging in Golang with Zap from Uber! When it comes to product development, logging plays a vital role in identifying issues, evaluating performances, and knowing the process status within the application. go-grpc-middleware Golang gRPC Middlewares: interceptor chaining, auth, logging, retries and more. ) Mar 15, 2023 · It accepts a user-configured `zap. Sep 1, 2019 · 16 I suppose it's a good idea to avoid replacing the default go logger, as was mentioned by @ammills01. The middleware functions defined can be used to log requests, measure request duration, and count requests in flight. The gRPC logging middleware populates request-scoped data to `logging. With its fast performance, it allows simple logging without impacting the performance of your application. This recently changed with the release of Go 1. 1. We'll start with the basic setup of Zap in a Go program, then move on to detailed examples illustrating how to write and manage logs of various levels and formats. HandlerFunc func GinzapWithConfig (logger ZapLogger, conf *Config) gin. Fields` that relate to the current gRPC call (e. before router-agnostic middleware. It stands out in the developer community for its blazing fast, low-allocation logging strategies, making it an ideal choice for applications that require high-speed logging with minimal overhead. ExtractFields` and `logging. Compare go-oidc-middleware vs zap and see what are their differences. Nov 12, 2021 · 0 The benefit of handling errors in middleware is handling errors centralized, as opposed to explicitly handling exceptions in each handler. Mar 31, 2024 · Hello, I will talk about how to monitor and log the Go service. It is a perfect way to implement common patterns: auth, logging, tracing, metrics Jun 22, 2024 · Zap is a high-performance logging library designed specifically for Go applications. e. Oct 27, 2024 · This is a blogs about how to integrate sentry in your project to view how your application is performing and follow through bugs. Jun 26, 2024 · In this post, I will try to demonstrate how to build a complete observability solution for a go microservice with Prometheus, Loki, Promtail, Tempo and interacting with the Grafana dashboard. Contribute to samber/slog-zap development by creating an account on GitHub. Your original logger will be at caller skip = 1, and your middleware creates a new logger with caller skip 1+1=2, which should give you the intended behaviour. fibersentry - Sentry support for Fiber. 22 May 14, 2021 · Having good logging is crucial for running and debugging applications in production. This package, and most of its child packages provides commonly needed middleware for gRPC: client-side interceptors for retires About Gin middleware/handler to logger url path using rs/zerolog logger gin logger-middleware gin-gonic zerolog Readme MIT license Here you'll find middleware ready to use with Gin Framework. com/uber-go/zap as logging library for https://github. Contribute to labstack/echo development by creating an account on GitHub. A handler for GoKit: https://github. go file instead contains the telemetry middleware, for use with the gin web framework. thì dùng các tool sẽ hỗ trợ việc coll Sep 28, 2023 · Now, let’s create a middleware. If you want to know about the gin middleware and how it works, you may refer to this doc. Jun 26, 2018 · zapには NewProduction () のloggerをそのまま渡しているのでログはstderrに 出力される。 これを ReplaceGrpcLogger () でも渡しているのでgRPCライブラリ内部のエラーも出る。 Golangの高速なロガーzapとlumberjackでログを出力してrotateさせる - sambaiz-net Compare go-grpc-middleware vs zap and see what are their differences. - grpc-ecosystem/go-grpc-middleware Nov 1, 2025 · Package middleware `middleware` is a collection of gRPC middleware packages: interceptors, helpers and tools. All errors are logged using zap. go golang log zap logger logging developer-tools structured-logging development-environment logger-interface terminal-ui Updated Mar 23, 2024 Go Sep 29, 2023 · 介绍go-grpc-middleware库及其关键中间件：grpc_zap实现日志记录，支持流式和简单RPC；grpc_auth实现bearer token认证；grpc_recovery捕获panic并转为error。通过示例展示各中间件在服务端的集成与配置，提升gRPC服务的稳定性和安全性。 chi-logger is a simple logging middleware for Chi with support for Zap and Logrus In your middleware, take the existing logger, and then use WithOptions to pass an additional AddCallerSkip(1). casbin - Provides Casbin authorization middleware for Fiber. chi-logger is a simple logging middleware for Chi with support for Zap and Logrus In your middleware, take the existing logger, and then use WithOptions to pass an additional AddCallerSkip(1). Feb 26, 2023 · Mastering Middleware in Go: Tips, Tricks, and Real-World Use Cases As a developer coming from a Java background, one of the first things I thought about when starting to work with Go was whether … Jun 21, 2024 · 5. logrus: Logrus is a structured logger for Go (golang), completely API compatible with the standard library golang middleware swagger gin gin-middleware gin-swagger Updated Apr 19, 2024 Go youngxhui / GinHello Star 309 Code Issues Pull requests Discussions 🌎中文文档 🇯🇵日本語ドキュメント What is huma? Install Example Documentation A modern, simple, fast & flexible micro framework for building HTTP REST/RPC APIs in Go backed by OpenAPI 3 and JSON Schema. When I use fmt. If you are in a hurry, you can find the source code in this section. Aug 31, 2024 · A comprehensive example of how to leverage gRPC in Go to create robust services, with the help of Connect. This function allows you to use 3rd party loggers such as logrus or zap with the Fiber logger middleware without any extra afford. NewServer() call appears to lack any means to inject a default context. Aug 29, 2022 · I'm attempting to set up logging using httplog for a Chi service that was generated with oapi-codegen, but structured logging isn't showing up in the console. Variables View Source var LogLevel * zap. HandlerFunc func RecoveryWithZap (logger Structured Logging in Golang with Zap - Blazing Fast Logger In this article, we will look into Structured Logging in Golang with Zap from Uber! When it comes to product development, logging plays a vital role in identifying issues, evaluating performances, and knowing the process status within the application. 3 days ago · Hertz provides a series of code examples designed to help users get start with Hertz and be familiar with its features. service and method names). SugaredLogger. Put differently, using json. Mar 29, 2023 · Yes, making the logger context-scoped is a great idea: while zap tries to maintain immutability, it isn't really guaranteed. I've got controllers that look like th Middleware Middleware Huma has support for two variants of middleware: Router-specific - works at the router level, i. We use home cooked correlation ids. HandlerFunc func Ginzap (logger ZapLogger, timeFormat string, utc bool) gin. Logger` that will be used for logging completed gRPC calls. You can use any middleware that is implemented for your router. Jun 21, 2023 · Project Structuring in Gin When developing a Gin application, it's crucial to have a well-structured project layout that promotes maintainability and scalability. Pronounced IPA: /'hjuːmɑ/. This can be changed dynamically at runtime. Star 23 Code Issues Pull requests ⚡️ simple zap logging middleware for go-chi golang middleware zap logger chi go-chi uber-zap Updated last week Go. In my design, I log any errors in the middleware of the grpc package. hwsn lryzs ctgt ejt uytig jufno ziatug svsb urfnis rkytw nsw uhkajh bxlendbs omjopld ciyskwg