Web Server on GoLang

Build web-echo Server

$ go build

Running web-echo

$ ./web-echo web-echo is running on 80 port.

Running on different Port; use -p port

$ ./web-echo -p 8000
2019/06/23 23:25:28 Listening on port 8000...

if port number not provided; default port 80 will be used

Serving custome message; use -m "msg"

$ ./web-echo -p 8000 -m "my greeting msg"

custome message will be served on '/greet' endpoint

In this case;

$ curl http://localhost:8000/greet my greeting msg

If no -m provided; default message is be "Message"

$ curl http://localhost:8000/greet Message

Echo Server : endpoint /echo

$ ./web-echo -p 8000

In this case;

$ curl http://localhost:8000/echo

{"Method":"GET","URL":{"Scheme":"","Opaque":"","User":null,"Host":"","Path":"/echo","RawPath":"","ForceQuery":false,"RawQuery":"","Fragment":""},"Proto":"HTTP/1.1","ProtoMajor":1,"ProtoMinor":1,"Header":{"Accept":["*/*"],"User-Agent":["curl/7.54.0"]},"Body":{"String":""},"ContentLength":0,"TransferEncoding":null,"Host":"localhost:8000","Trailer":null,"RemoteAddr":"[::1]:53638","RequestURI":"/echo"}

If no -m provided; default message is be "Message"

$ curl http://localhost:8000/greet Message

Docker Image building

Before Building Docker image make sure two things:

• Docker Application must be available
• Build the OS compatiable binary

Then we use the Dockerfile to build the Docker image.

Build Binary for OS compatible

$ GOOS=linux go build .

Build Docker Image

$ docker build . -f Dockerfile -t web-echo

Build Binary and Docker Image as one liner cmd

$ GOOS=linux go build . && docker build . -f Dockerfile -t web-echo