Golang News, Tutorials, Go Libraries and Golang Jobs
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 […]
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 […]
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, […]
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 […]
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 […]
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 […]
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 […]
In this post, I will briefly introduce the NATS JetStream Key/Value Store using an example with Go programming language. If you’re using NATS ecosystem in your systems architecture, you can further leverage the Key/Value Store as a mechanism for a consistent key/value store for various use cases like dynamic configurations for distributed systems and microservices. […]
We’ll discuss how using RWMutex over Mutex can greatly enhance performance. Introduction Multiple threads accessing the same memory at the same time is not desirable. In Golang we can have several different goroutines that all possibly have access to the same memory variables, which can lead to a race condition. Mutex, mutual exclusion, along with […]
A feature-rich chat application in Golang using Redis as a complete solution. Redis is used to store all user data, chats, contact lists, and many other things. The Chat Application’s name is Kayee. It is slang you will hear in Jabalpur city for what’s up! Introduction In this tutorial, you will create a chat application in Golang, […]