Coding rounds were for a middleware URL router and a multi-user rate limiter.

Question

RateLimiting Program · Accepted Answer

Here is the code for rate limiter. Well there is a python package that does ratelimiting.

import time
class RateLimiter:
	def __init__(self,request_id):
		self.request_id=request_id
		self.last_reset=time.time()
		self.num_calls=0
	def check(self):
		if self.request_id in dict.keys():
			current_time=time.time()
			time_since_reset=current_time-dict[self.request_id]["last_reset"]
			if time_since_reset10:
				dict[self.request_id]["last_reset"]=time.time()
				dict[self.request_id]["num_calls"]=0
				self.check()
		elif self.request_id not in dict.keys():
			dict[self.request_id]={"num_calls":1,"last_reset":time.time()}

rate_limiter=RateLimiter(1)
for i in range(20):
	print(rate_limiter.check())

RateLimiter · Answer

import time
class RateLimiter:
	def __init__(self,request_id):
		self.request_id=request_id
		self.last_reset=time.time()
		self.num_calls=0
	def check(self):
		if self.request_id in dict.keys():
			current_time=time.time()
			time_since_reset=current_time-dict[self.request_id]["last_reset"]
			if time_since_reset10:
				dict[self.request_id]["last_reset"]=time.time()
				dict[self.request_id]["num_calls"]=0
				self.check()
		elif self.request_id not in dict.keys():
			dict[self.request_id]={"num_calls":1,"last_reset":time.time()}

rate_limiter=RateLimiter(1)
for i in range(20):
	print(rate_limiter.check())

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