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This article covers building a chat app in Rust using asynchronous code. Source code can be found on GitHub. Cargo.toml file below contains all the dependencies we'll need. [package] name = "rusty-chat" version = "0.1.0" authors = ["Tin Rabzelj <[email protected]>"] edition = "2018" [dependencies] serde = { version = "1.0.105", features = ["derive"] } serde_json = "1.0.50" log = "0.4.8" env_logger
This article shows how to build a simple real-time chat using GraphQL and Go. The GraphQL server is implemented with vektah/gqlgen package and uses Redis to store the state. The front-end app is made with Vue and uses Apollo client libraries to communicate with the server. Full source code is available on GitHub. Getting started Set up Docker and Docker Compose. You also need Go with vgo and vekta
A few months ago, a really nice Go package vektah/gqlgen for GraphQL became popular. This article describes how GraphQL is implemented in "Spidey", an exemplary microservices based online store. Some parts listed below are missing, but complete source code is available on GitHub. Architecture Spidey encompasses three services that are exposed to the user through a GraphQL gateway. Communication wi
Building a Microservices Application in Go Following the CQRS Pattern This article walks through the development of a simplistic social network application where anyone can post anonymous messages. Source code is available on GitHub. Architecture The application is built using the Command Query Responsibility Segregation (CQRS) pattern. The goal is to decouple command and query sides into separate
This article shows how to build a simple search service in Go using Elasticsearch. The service will run inside a local Docker machine along side Elasticsearch instance. If you're only interested in the source code, you can find it on GitHub. Getting started If you haven't already, install Docker, Go and golang/dep dependency management tool. Create a directory for your project inside $GOPATH. Conf
This article shows how to build a simple drawing app using Go for the back-end. All communication will be established with WebSockets, so users will be able to see each others' drawings in real-time. Source code is available on GitHub. Getting started Install necessary Go packages. go get -u github.com/gorilla/websocket \ github.com/lucasb-eyer/go-colorful \ github.com/tidwall/gjson \ github.com/s
Getting Started with Microservices using Go, gRPC and Kubernetes This article aims to provide a simple introduction to building microservices in Go, using gRPC, and deploying them to a Kubernetes cluster. It shows how to set up two containerized, scalable services, talking to each other using request/response mechanism. One microservice will be responsible for calculating the greatest common divis
This tutorial shows how to build an image recognition service in Go using pre-trained TensorFlow Inception-V3 model. The service will run inside a Docker container, use TensorFlow Go package to process images and return labels that best describe them. Full source code is available on GitHub. Getting started Install Docker and Docker Compose. Configure container Inside project's root directory crea
GraphQL is better than REST for developing and consuming APIs. It lets you query the exact data you need without having to create many overspecific API endpoints. This article describes how to get GraphQL server running on Google App Engine with a "simple social network" data model. This tutorial uses the following technologies: Google Cloud SDK 173.0.0 (Installation instructions, also install goo
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