Change apiview to modelviewset

[prathamesh920]

No description provided.

[pep8speaks]

Hello @prathamesh920! Thanks for opening this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file api/tests.py:

Line 36:46: E128 continuation line under-indented for visual indent
Line 444:46: E128 continuation line under-indented for visual indent

• In the file api/views.py:

Line 38:1: E302 expected 2 blank lines, found 1
Line 221:1: W293 blank line contains whitespace
Line 246:1: W293 blank line contains whitespace