Pass data using 'json' so it gets encoded and correctly mimetype-d.

[elo80ka]

Hi...thanks for releasing this.

While using the latest version (1.2.4) in a project with Python 3.6, I noticed that trying to create plans kept returning a 400: Bad Request. Specifically:

from paystackapi.paystack import Plan
params = {'name': 'Some Plan', ...}
response = Plan.create(**params)

Enabling logging for requests, I discovered that the Content-type was being set to application/x-www-urlencoded, and the data posted as key/value pairs, which Paystack doesn't support. This appears to be the default behaviour for requests.

Changing the data parameter in paystackapi.base.PaystackRequests._request to json works (it correctly sets the Content-type to application/json and JSON-encodes the payload), and has been supported since version 2.4.2. I'm a bit confused though - is this a Python 3.6-only issue? Or are you manually JSON-encoding your data somehow?

[coveralls]

Changes Unknown when pulling 948bbd9 on elo80ka:master into ** on andela-sjames:master**.

[andela-sjames]

@elo80ka thanks for reaching out, this is a better modification as opposed to encoding it manually. Please, can you raise a Pull request to the Develop branch so that it can be merged and updated