Access restrict using api key
Add bullet, testing gems, fix N+1 queries
Add user model spec
Post and link specs
Add url validation test case
Model specs over
Add helper for parsing JSON
Controller spec testing start
Add controller specs, test user login, token set
Changes based on test results
Post create tested
Fixed up user token gen part, test cases for post create
Posts index test case
Have to change the workflow
Links controller, separated from posts
Post controller specs
Post not found handle in specs
Better specs
User specs completed
Links test cases