Simple and complete explanation about goroutines and concurrency in GoLang. Graphs, interactive visualizations are available 😉

https://divan.github.io/posts/go_concurrency_visualize/

One of the most featured articles on the Medium from CEO smsjunk.com and Chief Architect Officer at KnowBe4. He designed a new backend for handling 1 million JSON POST RPM and saving them into Amazon S3. Of course, he used goroutines, channels, parallel computing and other GoLang features. Enjoy reading!

https://medium.com/smsjunk/handling-1-million-requests-per-minute-with-golang-f70ac505fcaa

Must-read official article about arrays, slices and strings in GoLang

https://blog.golang.org/slices

Go best practices, six years in; article by Peter Bourgon

This article was originally a talk at QCon London 2016; If you want to save your time you can just look through these points:

1. Put $GOPATH/bin in your $PATH, so installed binaries are easily accessible.

2. Put library code under a pkg/ subdirectory. Put binaries under a cmd/ subdirectory.

3. Always use fully-qualified import paths. Never use relative imports.

4. Defer to Andrew Gerrand’s naming conventions.(https://talks.golang.org/2014/names.slide)

5. Only func main has the right to decide which flags are available to the user.

6. Use struct literal initialization to avoid invalid intermediate state. Inline struct declarations where possible.

7. Avoid nil checks via default no-op implementations.

8. Make the zero value useful, especially in config objects.

9. Make dependencies explicit!

10. Loggers are dependencies, just like references to other components, database handles, commandline flags, etc.

11. Use many small interfaces to model dependencies.

12. Tests only need to test the thing being tested.

13. Use a top tool to vendor dependencies for your binary.

14. Libraries should never vendor their dependencies.

15. Prefer go install to go build.

See more details and examples:
https://peter.bourgon.org/go-best-practices-2016/

Go + microservices + docker containers - good article about building and understanding the infrastructure of GoLang services on the Rest API.

Main points of the manual:
- Build Go Restful API with echo framework;

- Build Go binary on golang base image with Docker;

- Build lightweight image (Alpine) holding Go binaries;

- Create containers with Docker

https://hackernoon.com/golang-docker-microservices-for-enterprise-model-5c79addfa811

Errors handling experience, their context, panic and comparison to other languages in the following note:

https://opencredo.com/why-i-dont-like-error-handling-in-go/

Do you want to read something about GoLang? Here is a list of GoLang books for everyone from beginners to advanced levels

https://github.com/dariubs/GoBooks

Joey Clover tells about problems of microservices development and management. Key-points in his article are:


- What are the microservices?
- Why are they hard?
- Is it true that you can use any language for microservices development?
- How should services communicate each other?
- Reasons for the migrating from monolithic application to microservice architecture

https://hackernoon.com/microservices-are-hard-an-invaluable-guide-to-microservices-2d06bd7bcf5d?source=linkShare-b636419a57de-1516468517

Up-to-date article about data-stream processing: Apache Kafka, microservices, JVM to GoLang migrations, ES & Cassandra. What they did when they got 6x traffic increasing in 6 month

#design #cases #microservices #scalability

https://medium.com/@magicpineng/in-depth-look-at-a-scalable-robust-data-stream-processing-pipeline-using-golang-processing-500k-9e68310a0675

Do you think about gRPC usage? Here is a great post about step-by-step guide to gRPC framework development. You’ll find here code examples, theory introductions and useful tips. Enjoy learning! 🙂

#manual #development #microservices #examples

https://medium.com/@shijuvar/building-high-performance-apis-in-go-using-grpc-and-protocol-buffers-2eda5b80771b?source=linkShare-b636419a57de-1516656055

Today the Twitch company is introducing the new gRPC GoLang framework Twirp. It has already announced on the GitHub https://github.com/twitchtv/twirp

#development #frameworks #news

See more by link https://blog.twitch.tv/twirp-a-sweet-new-rpc-framework-for-go-5f2febbf35f

How to write and use benchmarks? I hope we understand their importance so let’s see couple of thoughts about benchmarks in GoLang:

#development #testing #profiling

https://medium.com/@hackintoshrao/daily-code-optimization-using-benchmarks-and-profiling-in-golang-gophercon-india-2016-talk-874c8b4dc3c5?source=linkShare-b636419a57de-1516810002

Tips, tricks and good advices about a memory management in GoLang in the “Allocation Efficiency in High-Performance Go Services” article by the Segment company. You’ll know:
- best way to use pointers in code;
- memory allocation complexity in heap and stack;
- Slice memory-optimisation tricks;
- and more 😉

https://segment.com/blog/allocation-efficiency-in-high-performance-go-services/

Are you a beginner in GoLang? Then it requires your attention 🙂.
Good and simple for understanding article about microservice-based API development; just simple and work solution with code examples and couple of advices

#development #microservices #architecture #practice

https://medium.com/@thedevsaddam/build-restful-api-service-in-golang-using-gin-gonic-framework-85b1a6e176f3?source=linkShare-b636419a57de-1516910445

GoLang 1.10 Release notes has been added!

Go 1.10 is not yet released. These are work-in-progress release notes. Go 1.10 is expected to be released in February 2018.

This release:
- caching of built packages;
- adds caching of successful test results;
- runs vet automatically during tests;
- permits passing string values directly between Go and C using cgo.

#golang #news #releases
See more:
https://tip.golang.org/doc/go1.10

Top-featured manual about kubernates-services step-by-step development. Code examples, service design, test coverage

#development #microservices #architecture

https://blog.gopheracademy.com/advent-2017/kubernetes-ready-service/

In the GoLang we use interfaces everywhere. But we also should understand the rules and idioms how GoLang interfaces works. Let’s read about them 😉; part one:

#development #basics

https://medium.com/golangspec/interfaces-in-go-part-i-4ae53a97479c

Everybody use dependencies and third-party packages but what is the best way to use it? GopherAcademy helps to understand best practice for the vendor folder organization. Of course, code examples and theory points are included 🙂

#development #basics #manual

https://blog.gopheracademy.com/advent-2015/vendor-folder/

Interesting step-by-step guide about design and development API with Docker containers, Swarm cluster and Traefik (HTTP reverse proxy and load balancer).

In this article you’ll know how to configure the Traefik in the Docker environment with 3 following nodes: one manager and two workers

#architecture #configuration #docker #microservices


https://hackernoon.com/architecting-a-highly-scalable-golang-api-with-docker-swarm-traefik-875d1871cc1f?source=linkShare-b636419a57de-1517171008

A presentation by Russ Cox in the MIT University: Go’s memory model

#development #memory_management

https://nil.csail.mit.edu/6.824/2016/notes/gomem.pdf