Golang Tutorials - Golang Libraries, Apps, Golang Jobs and Go Tutorials

The main objective of Centrifugo is to manage persistent client connections established over various real-time transports (including WebSocket, HTTP-Streaming, SSE, WebTransport, etc – see here) and offer an API for publishing data towards established connections. Clients subscribe to channels, hence Centrifugo implements PUB/SUB mechanics to transmit published data to all online channel subscribers. Centrifugo employs Redis as its […]

How to implement a disk-based key-value store in Golang

No Comments

| Golang Tutorials

I’d been mulling around reading a computer science paper and implementing a project based on it. Distributed systems, Networking and Databases are some of the things that fascinate me a lot. However, I had been looking to implement a more approachable project to avoid getting inundated initially. And I happened to chance upon the Bitcask paper through […]

How to work with the proposed structured logging Package for the Golang Standard Library

No Comments

| Golang Tutorials

For a while now, I’ve been keeping a close eye on the structure logging proposal making its way through Go’s language proposal process. Last month an experimental version of the proposal was released under the golang.org/x/exp package (see documentation here) and I decided to experiment with it and decided to summarise my learnings in a blog for others to learn […]

Golang gRPC to JSON proxy generator following the gRPC HTTP spec

No Comments

| Golang Tutorials

The gRPC-Gateway is a plugin of the Google protocol buffers compiler protoc. It reads protobuf service definitions and generates a reverse-proxy server which translates a RESTful HTTP API into gRPC. This server is generated according to the google.api.http annotations in your service definitions. This helps you provide your APIs in both gRPC and RESTful style at the same […]

How to declare ORM model and validation rules in OpenAPI doc for Golang

No Comments

| Golang Tutorials

The typical usage mode of an OpenAPI document is generating client and server API skeletons and interfaces from model. In most cases, the generated types aren’t compatible with the DB schema, so adapters must be implemented which causes more coding and automatic tests. A few solution provides the internal types on the external API, so adapters between […]

How to create transparent animated GIFs with Golang

No Comments

| Golang Tutorials

The image/gif package of Go’s standard library makes it quite easy to create animated GIF images. All you need to do is create your individual frames as an array of *image.Paletted and use gif.EncodeAll() to encode them into an animated GIF. Once you get to the point where you need to do something more advanced than importing existing images or drawing basic shapes, […]

How to work with Golang contexts and blocking functions

No Comments

| Golang Tutorials

Once you’ve been programming long enough, you’re bound to encounter issues where an application would become stuck intermittently, but for no obvious reason. With the root cause found and the issue resolved, you might ask yourself “how can I keep this kind of bug from happening in the future?” In this post I suggest a […]

Building a custom code search index in Golang

No Comments

| General, Golang Libraries, Golang Tutorials

I present what I belive is a unique index for indexing and searching source code. It copies ideas from Bing bitfunnel implementation to create a very fast, memory efficient trigram index over source code. What Happened? On Monday 21st November 2022 I updated the DNS entries for searchcode to point at the new searchcode server […]

Dependency handling for microservices with Golang: monorepo vs multirepo

No Comments

| Golang Tutorials

Microservice architecture is famous nowadays, but it has some drawbacks, see my earlier article: Microservice architecture is not a silver bullet. One of the painful complexity is handling the component version dependency. The component version dependency is more than component dependency, because it specifies which version is used on the dependency. Handling this additional info makes […]

A boilerplate for a gRPC-gateway-powered REST services project in Golang

No Comments

| Golang Libraries, Golang Tutorials

All the boilerplate you need to get started with writing grpc-gateway powered REST services in Go. Requirements Go 1.17+ Running Running main.go starts a web server on https://0.0.0.0:11000/. You can configure the port used with the $PORT environment variable, and to serve on HTTP set $SERVE_HTTP=true. An OpenAPI UI is served on https://0.0.0.0:11000/. Running the standalone server If you want to use […]

Golang Libraries, Apps, Golang Jobs and Go Tutorials

Category: Golang Tutorials

Improving Redis Engine throughput and allocation efficiency with Rueidis Golang library

How to implement a disk-based key-value store in Golang

How to work with the proposed structured logging Package for the Golang Standard Library

Golang gRPC to JSON proxy generator following the gRPC HTTP spec

How to declare ORM model and validation rules in OpenAPI doc for Golang

How to create transparent animated GIFs with Golang

How to work with Golang contexts and blocking functions

Building a custom code search index in Golang

Dependency handling for microservices with Golang: monorepo vs multirepo

A boilerplate for a gRPC-gateway-powered REST services project in Golang