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"""A simple number and datetime addition JSON API.
Run the app:
$ python examples/bottle_example.py
Try the following with httpie (a cURL-like utility, http://httpie.org):
$ pip install httpie
$ http GET :5001/
$ http GET :5001/ name==Ada
$ http POST :5001/add x=40 y=2
$ http POST :5001/dateadd value=1973-04-10 addend=63
$ http POST :5001/dateadd value=2014-10-23 addend=525600 unit=minutes
"""
import datetime as dt
from bottle import error, response, route, run
from webargs import fields, validate
from webargs.bottleparser import use_args, use_kwargs
hello_args = {"name": fields.Str(load_default="Friend")}
@route("/", method="GET", apply=use_args(hello_args))
def index(args):
"""A welcome page."""
return {"message": "Welcome, {}!".format(args["name"])}
add_args = {"x": fields.Float(required=True), "y": fields.Float(required=True)}
@route("/add", method="POST", apply=use_kwargs(add_args))
def add(x, y):
"""An addition endpoint."""
return {"result": x + y}
dateadd_args = {
"value": fields.Date(required=False),
"addend": fields.Int(required=True, validate=validate.Range(min=1)),
"unit": fields.Str(
load_default="days", validate=validate.OneOf(["minutes", "days"])
),
}
@route("/dateadd", method="POST", apply=use_kwargs(dateadd_args))
def dateadd(value, addend, unit):
"""A date adder endpoint."""
value = value or dt.datetime.utcnow()
if unit == "minutes":
delta = dt.timedelta(minutes=addend)
else:
delta = dt.timedelta(days=addend)
result = value + delta
return {"result": result.isoformat()}
# Return validation errors as JSON
@error(400)
@error(422)
def handle_error(err):
response.content_type = "application/json"
return err.body
if __name__ == "__main__":
run(port=5001, reloader=True, debug=True)
|
