Frontend Done!

[Guergeiro]

File restructure

• Swapped file structured to account for both projects.

  distributed-systems-2019/
  ├── placemanager-server/
  │     ├── src/
  │     ├── Dockerfile
  │     └── pom.xml
  │
  └── rest-server
    ├── src/
    ├── Dockerfile
    └── pom.xml

  Improved ComunicationHeartbeat.java

• Before we were dependent on Place.java since it belonged to an ArrayList<Place>.
• Now, we simply pass an Object and cast it to our needs. Could be an array, string, etc.

  FrontEnd Done!

  HTTP METHOD	GET	POST	PUT	DELETE
  CRUD OP	READ	CREATE	UPDATE	REMOVE
  /places	List all places	Create new place	Error	Error
  /places/1	Info about place 1	Error	Update info of place 1	Remove place 1

Note: The parameters to CREATE and UPDATE the place are codPostal and locality.

Some features:

• It's not dependent on a PlaceManager, although it will return a 500 status code when they don't respond to the requests.
• Requires 4 params:
  1. Multicast Address
  2. Multicast Port
  3. FrontEnd Address
  4. FrontEnd Port
• LEADER is only responsible for POST, PUT and DELETE requests.
• FOLLOWERS are chosen randomly to answer GET requests.

  How to test:

  1. Run 2 placemanager-server (One needs to be LEADER and other FOLLOWER), like before.
  2. Run rest-server with the correct arguments explained above.
  3. Make requests using any client you want, i.e. Postman.

     General Fixes

• Updated a bunch of files, i.e. .travis.yml to account for these changes.