Biblioteca

I am running a small library for the community in these difficult times. I need to manage the books in the library using the book management system. I have implemented some of the APIs but haven't had a chance to make it comprehensive. Can you help me?

Notes for HTTP: here.

Install dependencies

To start off, using mod:

go mod init <your-module-name>

Run

go run .

This starts a server on port 9000.

Once you run the application it automatically installs the dependencies, updates go.mod and creates go.sum file. Once the server is running, you will have to test the server using ./test-with-curl.sh.

Using modules

go mod download

Instructions

Implementation details

Map the CRUD (Create, Read, Update & Destroy) operations to the appropriate end-point based on the table below:

CRUD	Action	Method	Path	Params	Body	Response
R	Index	GET	/books	-	-	[ {ID: , Title: ,} ]
R	Show	GET	/books/{id}	-	-	{ID: , Title: ,}
C	Create	POST	/books	-	{ Title: , Author: , }	{ID: , Title: ,}
U	Update	PUT	/books/{id}	-	{ ID: , Title: , Author: , }	{ID: , Title: ,}
U	Update	PATCH	/books/{id}	-	{only send attributes which are to be updated}	{ID: , Title: ,}
D	Delete	DELETE	/books/{id}	-	-	{ID: , Title: ,}

Test

./test-with-curl.sh

Questions and Hints

• Look at encoding/json for decoding req.Body
• Is the API json compliant? If not, why?
  • What would it take to turn it in to xml?
  • Can you support both?
• Can you make the field names in json camelCase?
  • What happens when you change the attribute name of books to start with lower case?
• Handle edge cases too!
  • What happens when a user tries to delete a non-existent book?
  • Don't accept any price <5. See: Validator
• What happens when you make concurrent requests?