quote

Display random quotes evertimes it is run:

install golang

install golang

https://golang.org/doc/install

set path: vi ~/.bash_profile

export GOPATH=/Users/nandeshwar.sah/go
export GOROOT=/usr/local/go

export PATH=$PATH:/Users/nandeshwar.sah/go/bin
export PATH=$PATH:/usr/local/go/bin
export GOBIN=/usr/local/go/bin

alias dc='docker-compose'
alias dcup='docker-compose up -d'
alias dcdown='docker-compose down'

How to run?

go run cmd/quote/main.go

To get test coverage

go test $(go list ./pkg/*) -coverprofile r.txt
go tool cover -func r.txt
go tool cover -html r.txt

Run using docker container (default server run duration 5 minutes)

docker run -p 1922:1922 -t nandeshwar/quote
or
docker run -p 1922:1922 -e SERVER_RUN_DURATION_MIN=10 -e SERVER_RUN_DURATION_HOUR=10 -t nandeshwar/quote

Run using docker compose

docker-compose up -d

Default time zone is set to America/Denver, can be changed with env variable TZ=America/Denver

docker run -p 1922:1922 -e SERVER_RUN_DURATION_MIN=10 -e SERVER_RUN_DURATION_HOUR=10 -e TZ=America/Denver -t nandeshwar/quote

build image and push Image to docker container

docker build -t nandeshwar/quote .
docker push nandeshwar/quote

or
 
docker-compose up -d --build
docker push nandeshwar/quote
docker-compose down
docker images -q -f "dangling=true" | xargs docker rmi

Create image compatible for Raspberry pi

Step1: Create image specific to Raspberry pi 

Install buildx with below commands,
git clone git://github.com/docker/buildx && cd buildx
make install
Create image compatible with raspberry pi with below command,
docker buildx create --name testbuilder
docker buildx ls

docker buildx use testbuilder

docker buildx build --platform linux/amd64,linux/arm64 --tag nandeshwar/quote-r:latest --push .

docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 --tag nandeshwar/quote-r:latest --push .

Enter to MySqlite3

sqlite3 ./db/quote.db 

List tables

.tables

Swagger setup in local

Install go-swagger in mac

brew tap go-swagger/go-swagger
brew install go-swagger

Setup code for swagger

1. copy swagger-ui folder as it is

2. change title in index.html

3. api.go has following lines at top of file and should be commented as given below
// Package Quote QuoteAPI.
//
//     Consumes:
//		- application/xml
//     Produces:
//      - application/json
//
// swagger:meta

4. Add line below in api.go
//go:generate swagger generate spec -m -o ../../swagger-ui/swagger.json

5. Link these 2 lines given below api.go
sh := http.StripPrefix("/swagger-ui/", http.FileServer(http.Dir("./swagger-ui/")))
mux.PathPrefix("/swagger-ui/").Handler(sh)

6. Add swagger tag in struct like given below
// swagger:model infoResponse
type Info struct {

7. Add swagger tag before function similar to below
// swagger:operation GET /api/quote/v1/info/{id} INFO info
// ---
// description: get INFO by id
// consumes:
// - "application/json"
// parameters:
// - name: id
//   description: id to get info
//   in: path
//   required: true
//   default: 1
//   type: string
// Responses:
//   '200':
//     description: Ok
//     schema:
//        '$ref': '#/definitions/infoResponse'
//   '400':
//     description: Bad request
//   '404':
//     description: Not found
//   '500':
//     description: Internal server error

Generate Swagger documentation

go generate ./...

Local Swagger UI URL

http://localhost:1922/swagger-ui/

Docker compose Swagger UI URL

http://localhost:1922/swagger-ui/

Install grpc related utility

go get google.golang.org/protobuf/cmd/protoc-gen-go
go get google.golang.org/grpc/cmd/protoc-gen-go-grpc

go get -u google.golang.org/grpc

go generate pb file grpc - EventDetail

protoc -I=./pkg/grpcquote/ --go_out=./pkg/grpcquote/ --go-grpc_out=./pkg/grpcquote/ ./pkg/grpcquote/event-detail.proto

Development setup for grpc

https://grpc.io/docs/quickstart/go.html

Look "Before you begin" section

For endpoints using grpc

https://github.com/phuongdo/go-grpc-tutorial

go get -u github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway

run grpc client to get & update record for event-detail

default get request

go run cmd/grpc_client/eventDetailClient.go

get event detail

go run cmd/grpc_client/eventDetailClient.go get 41

update event detail

go run cmd/grpc_client/eventDetailClient.go put event.json

get multiple event detail - grpc stream

go run cmd/grpc_client/eventDetailClient.go gets "1, 2, 3, 4, 5"

Kafka UI

http://localhost:8000/

Run Kafka producer

go run cmd/binaryclient/kafka/producer/kafkaproducer.go

Run Kafka Consumer

go run cmd/binaryclient/kafka/consumer/kafkaconsumer.go

RabbitMQ UI - user: rabbitmq, password: rabbitmq

http://localhost:15672/

RabbitMQ Producer

sudo go run cmd/binaryclient/rabbitmq/producer/producer.go

RabbitMQ Consumer

sudo go run cmd/binaryclient/rabbitmq/consumer/consumer.go

Email Server setting

export EMAIL_SERVER="smtp.gmail.com"
export EMAIL_SERVER_PORT=587
export EMAIL_FROM="abc@gmail.com"
export EMAIL_FROM_PWD="****"
export EMAIL_TO_FOR_EVENTS="abc@gmail.com, xyz@gmail.com"
export EMAIL_TO_FOR_QUOTE_IMAGE="abc@gmail.com, xyz@gmail.com"

Note: for smtp gmail. go to gmail acccount -> Search -> Less secure app access -> turn it on

To setup git repo

1. Add ssh public key in github
2. git remote set-url origin git@github.com:Nandeshwar/quote.git
3. git push origin <branch>