Default WebApp template

Test project to build simple RESTful service based on OpenApi definitions defined in /api directory.

TODOs

• Configuration with Viper
• Add support for flags (cobra?)
• Version tags / Build info
• Containerization
• OpenApi code generation
• REST server using echo.Echo
• Middleware for REST endpoints
• Picking structured logging library
• Dummy Frontend SPA
• Single Binary deployment with embedded SPA
• Persistence storage
• SearchStore capabilities

Directory layout

Directory	Description
./.iac	"infrastructure as code"
./api	OpenAPI, gRPC contracts
./bin/<arch>	Build output directory, grouped by architecture (eg: darwin, linux)
./cmd	application main
./config	application specific configuration
./internal	project private libraries
./pkg	project libraries
./scripts	Shell scripts used in dev environment (env setup, automation etc)
./ui	frontend as Single Page Application

Prerequisites

Minimum

• Go 1.14+
• Go Modules

Recommended

• Git (SCM)
• Docker (containerization)
• Unix based system (for scripts execution)
• Javascript with React (for UI component development)
• yarn (frontend package manager)
• developer tools binaries installed on host

Installation

Image build

gomodroot=$(go list -m)
buildTime=$(date -u '+%Y-%m-%d %H:%M:%S %Z') && \
docker build \
  --build-arg VERSION=$(git describe --tags --always --dirty) \
  --build-arg GIT_COMMIT=$(git rev-list -1 HEAD) \
  --build-arg BUILD_TIME=$buildTime \
  --build-arg GO_MOD_ROOT=$gomodroot \
  -t macpla/webapp .

Docker run

docker run -p 8080:8080 --rm macpla/webapp

Local build

1. build ui component (React App)

./scripts/build-ui.sh

2. build backend with embedded SPA.

./scripts/build-local.sh

optional steps

• clean pack2 generated files

./scripts/build-local.sh clean

• openApi spec generation

./scripts/openapi-gen.sh

Interacting with a Service

http://localhost:8080/ -- React landing Page

http://localhost:8080/api/v1/demoapp/.well-known/alive?full=1 -- backend health-check

Developer tools

deepmap/oapi-codegen - OpenAPI 3 client and server boilerplate generator for GO

mikefarah/yq - cli YAML preprocessor

openapi-generator-cli - all purpose node based OpenAPI generator used to generate frontend client

gobuffalo/packr/v2 - static files to Go embedding processor