Enable CORS in bottle python

To access data of the REST API from other domain API should have CORS enabled for the website. Like most of all framework Bottle by default does not set CORS header. To enable it, following decorator can be used:

from bottle import Bottle,response
def allow_cors(func):
""" this is a decorator which enable CORS for specified endpoint """
def wrapper(*args, **kwargs):
response.headers['Access-Control-Allow-Origin'] = 'example.com' # * in case you want to be accessed via any website
return func(*args, **kwargs)
return wrapper
#example usages in an API endpoint
app = Bottle()
def get_cakes_by_id():
# loading cakes by ID
return {"cakes": cakes}

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In the API response header “Access-Control-Allow-Origin” will be added. As per our example, it will be Access-Control-Allow-Origin: example.com.  To enable it for any website you can set it as “*”.   There is an interesting discussion whether to set it * or not.

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