standardc

About

• User signs up for using the system.
• User needs to login to use the system. Otherwise he api's will reject his request.
• Currently there is no timeout implemented in the system
• User needs to submit his request using compute api
• User can query his previous requests using two api's - previous-bydate, previous-byrange
• previous-bydate - User can specify from and to date , or just to date or just from date or just on date
• previous-byrange - User can specify from and to range of requests , or just from, or just two or last #n requests.

Implementation

• springboot template project has been used for providing the api's.
• ComputeController.java & UserController.java have the API end points listed.
• Business logic is written in ComputeService.java and UserService.java
• An attempt was made by me to use vaadin for building the UI for this project. But I couldn't complete it by Monday morning.
• H2 database is used for storing the requests. IT can be easily replaced by mysql or any database as springboot provides the JPA for interacting with most of the databases.

API Calls

Compute call

*Pass x,a,b,c *Response is response object with error code and error message . eg, If success error code is 99 and error message is "success"

POST /compute HTTP/1.1

Host: localhost:8080

Content-Type: application/json

cache-control: no-cache.

Postman-Token: 57030a99-2390-4c6d-8f9a-a39aef830932.

{. "x":20 ,.

"a":10 ,.

"b":10, .

"c":10.

}.

Get previous requests from 01/01/2019

• Get all events from 01/01/20019 onwards. Note that username has to be passed as only if the user is logged the request is allowed

GET /previous-bydate?from=01/01/2019& username=sharatc HTTP/1.1

Host: localhost:8080

Content-Type: application/json

cache-control: no-cache

Postman-Token: b1e62a59-a9a5-4a8a-b45c-57a07ed52ea0

Get Previous requests from 01/01/2019 until 02/02/2019

• Get all events from 01/01/20019 until 02/20/2019. Note that username has to be passed as only if the user is logged the request is allowed

GET /previous-bydate?from=01/01/2019&to=02/20/2019; username=sharatc HTTP/1.1

Host: localhost:8080

Content-Type: application/json

cache-control: no-cache

Postman-Token: b1e62a59-a9a5-4a8a-b45c-57a07ed52ea0

Get Previous requests on 02/20/2019

• Get all events on 02/20/2019. Note that username has to be passed as only if the user is logged the request is allowed

GET /previous-bydate?ondate=02/20/2019& username=sharatc HTTP/1.1

Host: localhost:8080

Content-Type: application/json

cache-control: no-cache

Postman-Token: b1e62a59-a9a5-4a8a-b45c-57a07ed52ea0

Get all the events from range 10 to 0

GET /previous-byrange?beforen=10& username=sharatc HTTP/1.1

Host: localhost:8080

Content-Type: application/json

cache-control: no-cache

Postman-Token: 50774156-9e02-4e50-b081-de786583f1a6

Get all the events from range 100 to 5

GET /previous-byrange?beforen=100&afteren=5& username=sharatc HTTP/1.1

Host: localhost:8080

Content-Type: application/json

cache-control: no-cache

Postman-Token: 50774156-9e02-4e50-b081-de786583f1a6

Get last 30 events

GET /previous-byrange?lastn=30& username=sharatc HTTP/1.1

Host: localhost:8080

Content-Type: application/json

cache-control: no-cache

Postman-Token: 50774156-9e02-4e50-b081-de786583f1a6