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43 lines
No EOL
1.5 KiB
Python
43 lines
No EOL
1.5 KiB
Python
import re
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TOKEN_REGEX = re.compile("^[0-9A-F-]+$")
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class Service:
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def __init__(self, product_detail_client, product_search_client):
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self.product_detail_client = product_detail_client
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self.product_search_client = product_search_client
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def lookup(self, product_token):
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"""
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Given a valid product token,
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lookup product detail information from the product detail backend service.
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- Results in Bad Request if the token is invalid
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- Results in Not Found if the product is unknown to the backend service
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"""
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if not TOKEN_REGEX.match(product_token):
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return {"status": 400}
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lookup_result = self.product_detail_client.lookup(product_token)
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if lookup_result:
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return {"status": 200, "product": lookup_result}
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else:
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return {"status": 404}
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def search_by_price_range(self, lower_cents, upper_cents, start_record, num_records):
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page_of_product_tokens = \
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self.product_search_client.search_for_all_in_price_range(
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lower_cents,
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upper_cents,
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start_record,
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num_records)
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product_detail_results = []
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for product_token in page_of_product_tokens:
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product_detail_results.append(self.lookup(product_token)["product"])
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return {"status": 200, "products": product_detail_results}
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if __name__ == "__main__":
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a = Service()
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print(a.lookup('aaa')) |