greeter

README

WebService Lab

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Mission

And that's a Wrap!! Decorate your user greeter as a Web Service...

• Ensure your web server is listening on port 4500
• Create an HTTP service with two endpoints ie / and /greet
• If the user hits / the service should produce a no route match error with a 400 status code
• /greet serves out new greetings
  • The request should take query parameters for the user name and age
  • You should issue a JSON response!
• Make sure the proper JSON headers are set
• Write the necessary tests to shake out your endpoints!
• Run your web service using cmd/svc/main.go
• Now run your cli to call your web service cmd/cli/main.go
• [BONUS] Hit a classmate greeting service if you share the same network

Expected Output

{
    "Age": 42,
    "Greeting": "Greetings Fernand! You are now 42 years old...",
    "Name": "Fernand"
}

OSX Brew Installs (Totally Optional!!)

# Install httpie
brew install httpie

Commands

# Start your web server
go run cmd/srv/main.go
# Hit the new_word url classic
curl -XGET 'http://localhost:4500/greet?name=Fernand&age=42'
# Or...
http :4500/greet name==Fernand age==42
# Run the cli
go run cmd/cli/main.go -age 10 -name fred -url localhost:4500

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© 2019 Imhotep Software LLC. All materials licensed under Apache v2.0

Documentation

Index

• func GreetingHandler(w http.ResponseWriter, r *http.Request)
• func NoMatchHandler(w http.ResponseWriter, r *http.Request)
• func SetupRoutes()
• type Response

Functions

func GreetingHandler

func GreetingHandler(w http.ResponseWriter, r *http.Request)

GreetingHandler greats incoming users.

func NoMatchHandler

func NoMatchHandler(w http.ResponseWriter, r *http.Request)

NoMatchHandler is used when no known endpoints.

func SetupRoutes

func SetupRoutes()

SetupRoutes for various endpoints.

Types

type Response

type Response struct {
	Greeting, Name string
	Age            int
}

Response greeting message format.