Dream API

A web framework hands your code a path and waits for a response. Write handle_request(path, dream_db) for a small dream service. dream_db maps topics to lists of dream descriptions. Return a dictionary with a status code and a body:

/topics returns status 200 and the topic names sorted alphabetically.
/dreams/TOPIC returns status 200 and that topic's dreams. Topics match without caring about case.
/dreams/TOPIC?limit=N returns at most N dreams.
An unknown topic returns status 404 and the body "No dreams found for topic: TOPIC".
Any other path returns status 400 and the body "Bad request".

This is exactly the routing and validation a real Flask or FastAPI endpoint does.

Build it step by step

Split off the query string with path.partition("?").
Handle /topics first.
For paths starting with /dreams/, find the topic ignoring case.
Read limit from the query string and slice the list.
Everything else is a 400.

Examples

handle_request('/topics', {'sea': ['Deep blue water'], 'flight': ['Soaring']})

→ {'status': 200, 'body': ['flight', 'sea']}

handle_request('/dreams/flight', {'flight': ['Soaring over neon clouds', 'Falling gently'], 'sea': ['Deep blue water']})

→ {'status': 200, 'body': ['Soaring over neon clouds', 'Falling gently']}

project.py

PYTHON

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Tests

0 of 7 passing

•
/topics lists topics
handle_request('/topics', {'sea': ['Deep blue water'], 'flight': ['Soaring']})
expected {'status': 200, 'body': ['flight', 'sea']}
•
/dreams/flight
handle_request('/dreams/flight', {'flight': ['Soaring over neon clouds', 'Falling gently'], 'sea': ['Deep blue water']})
expected {'status': 200, 'body': ['Soaring over neon clouds', 'Falling gently']}
•
topic in capitals
handle_request('/dreams/FLIGHT', {'flight': ['Soaring']})
expected {'status': 200, 'body': ['Soaring']}
•
limit=1
handle_request('/dreams/flight?limit=1', {'flight': ['Soaring', 'Falling', 'Gliding']})
expected {'status': 200, 'body': ['Soaring']}
•
unknown topic
handle_request('/dreams/forest', {'flight': ['Soaring']})
expected {'status': 404, 'body': 'No dreams found for topic: forest'}
•
unknown path
handle_request('/weather', {'flight': ['Soaring']})
expected {'status': 400, 'body': 'Bad request'}
•
limit is not a number
handle_request('/dreams/flight?limit=lots', {'flight': ['Soaring']})
expected {'status': 400, 'body': 'Bad request'}

On the line

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