========= Go code must be kept inside a workspace. A workspace is a directory hierarchy with three directories at its root:

1. src contains Go source files organized into packages (one package per directory),
2. pkg contains package objects, and
3. bin contains executable commands.

The src subdirectory will contain my git repository: git@github.com:mujibur-rahman/golangTest.git

The GOPATH environment variable specifies the location of your workspace.

• $ mkdir $HOME/work
• $ export GOPATH=$HOME/work

Now cd to work/src directory and the use following comand

• git clone git@github.com:mujibur-rahman/golangTest.git

Add new third part packages which is needed to run.

• go get github.com/gin-gonic/gin
• go get github.com/dgrijalva/jwt-go

To run the application run the follow commands

• cd golangTest
• go run main.go

To use flag while running the main.go

* go run main.go [It will start default port: 8000, ginMode: release, logToFile:true and useGinLogger: false
* go run main.go -port=9000 -logToFile=false [It will start port 9000 and logToFile=false(It supports to write log on stdout)]

it will start go web server. It will log all to logs/web-server.log command to see that: tail -f logs/web-server.log from current directory

Open a new command line.

1. export GOPATH=$HOME/work
2. cd cd golangTest/auth
3. go test -v

Following commands needed to run and test the apps. I did not use any web html template, but everything I tested in command line tool by using curl I used GIN framework for RESTFUL API supports

1. curl http://localhost:8000/

Response: {"message":"Its an entry point :)"}

2. curl http://localhost:8000/token

Response: {"token":"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJJRCI6Im11amlidXJUZXN0IiwiZXhwIjoxNDU0MjU3MzcyfQ.4RnySbetK3SBFeSjJ7f6FHF7Ji63pCdES8dZAVXGVRE"}

Now you need to copy the token and paste while testing the auth and others api. Replace paste-me-here-token-keys with the token

3. curl --form authkey=abc123456abc -H "Authorization: bearer paste-me-here-token-keys" http://localhost:8000/auth following things happend if:

$ curl --form authkey=abc123456abc -H "Authorization: bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJJRCI6Im11amlidXJUZXN0IiwiZXhwIjoxNDU0MTc4ODIyfQ.n-BrOHIX2ns--X52BA2eF1PyeD77-SPsUGpyftEAD_w" http://localhost:8000/auth

#Log

2016-01-31T23:25:58GMT 127.0.0.1 401 316.142µs "POST /auth HTTP/1.1" -1

Error #01: token is expired

$ curl --form authkey=abc123456abc http://localhost:8000/auth

#Log

2016-01-31T23:27:22GMT 127.0.0.1 401 734.016µs "POST /auth HTTP/1.1" -1

Error #01: no token present in request

$ curl -v --form authkey=abc123456abc1 -H "Authorization: bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJJRCI6Im11amlidXJUZXN0IiwiZXhwIjoxNDU0MjU3MzcyfQ.4RnySbetK3SBFeSjJ7f6FHF7Ji63pCdES8dZAVXGVRE" http://localhost:8000/auth

Response: "Wrong key"

$ curl -v http://localhost:8000/user

Response: 401

$ curl -H "Authorization: bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJJRCI6Im11amlidXJUZXN0IiwiZXhwIjoxNDU0MjU3MzcyfQ.4RnySbetK3SBFeSjJ7f6FHF7Ji63pCdES8dZAVXGVRE" http://localhost:8000/user

Response: {"user":{"country":"malaysia","id":9001,"mobile":"+019378646","username":"Mujibur"}}

$ curl -H "Authorization: bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJJRCI6Im11amlidXJUZXN0IiwiZXhwIjoxNDU0MjU3MzcyfQ.4RnySbetK3SBFeSjJ7f6FHF7Ji63pCdES8dZAVXGVRE" http://localhost:8000/user/9001

Response: {"id":9001,"username":"Mujibur","country":"malaysia","mobile":"+019378646"}

$ curl http://localhost:8000/dbaccessor

{"object":{"Databases":[{"Tables":[{"Types":[{"country":"string","id":"int","mobile":"string","name":"string"}],"name":"user"}],"host":"localhost","name":"golang","pass":"root","port":3306,"type":"mysql","user":"root"}],"buffer_size":10}}

$ godoc golangTest/auth