Restful API for statistics.
The main use case for our API is to calculate realtime statistic from the last 60 seconds. There will be two APIs, one of them is called every time a transaction is made. It is also the sole input of this rest API. The other one returns the statistic based of the transactions of the last 60 seconds.
Every Time a new transaction happened, this endpoint will be called.
Body: { "amount": 12.3, "timestamp": 1478192204000 }
Where:
- amount - transaction amount (a
doublespecifying the amount) - timestamp - transaction time in
epoch in millis in UTC time zone(this is not current timestamp)
Returns:
- Empty body with either 201 or 204.
201 - in case of success
204 - if transaction is older than 60 seconds
It returns the statistic based on the transactions which happened in the last 60 seconds.
Returns:
{ "sum": 1000, "avg": 100, "max": 200, "min": 50, "count": 10 }
Where:
- sum is a
doublespecifying the total sum of transaction value in the last 60 seconds - avg is a
doublespecifying the average amount of transaction value in the last 60 seconds - max is a
doublespecifying single highest transaction value in the last 60 seconds - min is a
doublespecifying single lowest transaction value in the last 60 seconds - count is a
longspecifying the total number of transactions happened in the last 60 seconds