Alura_ChallengeONE_Java_3

Alura Challenge: Forum-Hub. Java BackEnd API REST

This API REST system simulates the functionality of a Forum using four main endpoints. It supports the GET, POST, PUT and DELETE http methods.

-- How does it work --

• Every endpoint that has an object to return, returns it as a Json and a status code.
• The system uses PostgresSQL for the database.
• The url before the endpoints can be adjusted according to the needs.
• As an example: "http:/anyserver/ENDPOINT".
• There are four main endpoints:

1. Endpoint("/login"):
   • The only http method it accepts is POST.
   • This endpoint does not require any kind of authorization, so anyone can access to it.
   • You need to send a Json with valid credentials in order to recive a JsonWebToken that will allow you to access all the other endpoints.
   • Example of the Json with credentials:
   • 
   • If your credentials are valid you will recive your JWT and it will valid for two hours according to the UTC(-06:00).
   • Example of successful response:
   • 
   • If your credentials are not valid you will recive a 403 status code.

• Once you have recived your JWT, you will be able to access all the other endpoints.

2. Endpoint("/topic"):

   • This endpoint will accept GET, POST, PUT and DELETE http methods.
   • Only the active topics will be considered for this functions (status = true).
   • Method POST:
     • To register a new topic, you need to send a Json which can't have empty information.
     • Example of a valid Json:
     • 
     • If the request is successful you will get a 201 status code, the created object and its location("http:/server/topic/TOPIC_ID"):
     • 
     • If you try to register a topic with the same "title" and "message" that another topic, you will get a 400 status code.
   • Method GET:
     • Endpoint("/all"):
       • This endpoint will return a list of all the topics in a Json format.
       • Example of sucessful response:
       • 
     • Endpoint("/firstTen"):
       • This endpoint will return a list of ten topics ordered by their ascending "creation_date".
     • Endpoint("/title/{title}"):
       • This endpoint allowes you to search a topic by its exact title.
       • An example of a request is "http:/server/topic/title/example-of-title".
       • If the topic is found, you will recive a Json object:
       • 
       • If the topic is not found, you will get a 404 status code.
     • Endpoint("/author/{id}"):
       • This endpoint allowes you to search a topic by an author's id.
       • An example of a request is "http:/server/topic/author/2".
       • If the author's id and topic is found, you will recive a list of topics in a Json format:
       • 
       • If the author's id or topic is not found, you will get a 404 status code.
     • Endpoint("/course/{id}"):
       • This endpoint allowes you to search a topic by a course's id.
       • An example of a request is "http:/server/topic/course/4".
       • If the course's id and topic is found, you will recive a list of topics in a Json format:
       • 
       • If the course's id or topic is not found, you will get a 404 status code.
     • Endpoint("/{id}"):
       • This endpoint allowes you to search a topic by its id.
       • An example of a request is "http:/server/topic/1".
       • If the topic is found, you will recive a Json object:
       • 
       • If the topic is not found, you will get a 404 status code.
   • Method PUT:
     • Endpoint("/{id}"):
       • This endpoint allowes you to update a topic by its id.
       • Example of a valid Json to update a topic:
       • 
       • You can omit any of the Json properties as this is only and update.
       • If the topic is found and the Json is valid, you will recive a Json of the updated object:
       • 
       • If the topic is not found, you will get a 404 status code.
   • Method DELETE:
     • Endpoint("/{id}"):
       • This endpoint allowes you to delete a topic by its id.
       • If the topic is found, you will only get a 200 status code.
       • If the topic is not found, you will get a 404 status code.

3. Endpoint("/author"):

• This endpoint will accept GET and PUT http methods.
• Method GET:
  • Endpoint("/{id}"):
    • This endpoint allowes you to search an author by its id.
    • An example of a request is "http:/server/author/1".
    • If the author is found, you will recive a Json object:
    • 
    • If the author is not found, you will get a 404 status code.
  • Endpoint("/name/{name}"):
    • This endpoint allowes you to search an author by its exact name.
    • An example of a request is "http:/server/author/name/Pedro-Hernandez".
    • If the author is found, you will recive a Json object:
    • 
    • If the author is not found, you will get a 404 status code.
  • Endpoint("/email/{email}"):
    • This endpoint allowes you to search an author by its exact email.
    • An example of a request is "http:/server/author/email/[email protected]".
    • If the author is found, you will recive a Json object:
    • 
    • If the author is not found, you will get a 404 status code.
• Method PUT:
  • Endpoint("/{id}"):
    • This endpoint allowes you to update an author by its id.
    • Example of a valid Json to update an author:
    • 
    • You can omit any of the Json properties as this is only and update.
    • If the author is found and the Json is valid, you will revice a Json of the updated object:
    • 
    • If the author is not found, you will get a 404 status code.

4. Endpoint("/answer"):

• This endpoint will accept GET, POST, PUT and DELETE http methods.
• Method GET:
  • Endpoint("/{id}"):
    • This endpoint allowes you to search an answer by its id.
    • An example of a request is "http:/server/answer/1".
    • If the answer is found, you will recive a Json object:
    • 
    • If the answer is not found, you will get a 404 status code.
• Method POST:
  • Endpoint("/add"):
    • This endpoint allowes you to add a new answer.
    • You need to send a Json which can't have empty information.
    • Example of a valid Json:
    • 
    • If the request is successful you will get a 201 status code, the created object and its location("http:/server/answer/ANSWER_ID"):
    • 
    • If your request is missing something or it is not correct, you will get a 400 status code.
• Method PUT:
  • Endpoint("/{id}"):
    • This endpoint allowes you to update an answer by its id.
    • Example of a valid Json to update an answer:
    • 
    • You can omit any of the Json properties as this is only and update.
    • If the answer is found and the Json is valid, you will revice a Json of the updated object:
    • 
    • If the answer is not found, you will get a 404 status code.
• Method DELETE:
  • Endpoint("/{id}"):
    • This endpoint allowes you to delete an answer by its id.
    • If the answer is found, you will only get a 200 status code.
    • If the answer is not found, you will get a 404 status code.