def get_category_list():
try:
category_list = endpoints.get_categories(connection)
except Exception as e:
bottle.response.status = 500
return {"error": f"Server error – {e}"}
return {"results": category_list}
def index():
query = bottle.request.query.q
timeframe = bottle.request.query.timeframe
category_filter = bottle.request.query.getall(
'category') # multiple params possible
metric = bottle.request.query.metric
entity = "papers"
page = bottle.request.query.page
page_size = bottle.request.query.page_size
error = ""
default_front = (metric == '' and timeframe == '')
# Don't accept bad values for fields that we cache on
if metric not in ["downloads", "twitter"]:
metric = "twitter"
if metric == "twitter":
if timeframe == "":
timeframe = "day"
if timeframe not in ["alltime", "day", "week", "month", "year"]:
error = f"There was a problem with the submitted query: {timeframe} is not a recognized timeframe for tweets."
bottle.response.status = 400
return {"error": error}
elif metric == "downloads":
if timeframe == "":
timeframe = "alltime"
if timeframe not in ["alltime", "ytd", "lastmonth"]:
error = f"There was a problem with the submitted query: {timeframe} is not a recognized timeframe for downloads."
bottle.response.status = 400
return {"error": error}
category_list = endpoints.get_categories(
connection) # list of all article categories
# Get rid of a category filter that's just one empty parameter:
if len(category_filter) == 1 and category_filter[0] == "":
category_filter = []
else:
# otherwise validate that the categories are valid
for cat in category_filter:
if cat not in category_list:
error = f"There was a problem with the submitted query: {cat} is not a recognized category."
bottle.response.status = 400
return {"error": error}
if page == "" or page == None:
page = 0
else:
try:
page = int(page)
except Exception as e:
error = f"Problem recognizing specified page number: {e}"
if page < 0:
error = f"There was a problem with the submitted query: {page} is not a valid page number."
bottle.response.status = 400
return {"error": error}
if page_size == "":
page_size = config.default_page_size
else:
try:
page_size = int(page_size)
except Exception as e:
error = f"Problem recognizing specified page size: {e}"
page_size = 0
if page_size > config.max_page_size:
error = f"There was a problem with the submitted query: Max page size is {config.max_page_size}."
bottle.response.status = 400
return {"error": error}
results = {} # a list of articles for the current page
totalcount = 0 # how many results there are in total
if error == "": # if nothing's gone wrong yet, fetch results:
try:
results, totalcount = endpoints.paper_query(
query, category_filter, timeframe, metric, page, page_size,
connection)
except Exception as e:
error = f"There was a problem with the submitted query: {e}"
bottle.response.status = 500
return {"error": error}
# If daily twitter stats aren't available go weekly:
if default_front and totalcount == 0:
timeframe = 'week'
try:
results, totalcount = endpoints.paper_query(
query, category_filter, timeframe, metric, page, page_size,
connection)
except Exception as e:
error = f"There was a problem with the submitted query: {e}"
bottle.response.status = 500
return {"error": error}
# If there is an unreasonably low number of weekly results, just roll over to downloads instead
if default_front and totalcount < 150:
metric = 'downloads'
timeframe = 'lastmonth'
try:
results, totalcount = endpoints.paper_query(
query, category_filter, timeframe, metric, page, page_size,
connection)
except Exception as e:
error = f"There was a problem with the submitted query: {e}"
bottle.response.status = 500
return {"error": error}
# CACHE CONTROL
# website front page
if bottle.request.query_string == "":
bottle.response.set_header(
"Cache-Control",
f'max-age={config.cache["front_page"]}, stale-while-revalidate=172800'
)
# if it's a simple query:
if query == "" and page < 3 and page_size == config.default_page_size:
bottle.response.set_header(
"Cache-Control",
f'max-age={config.cache["simple"]}, stale-while-revalidate=172800')
resp = models.PaperQueryResponse(results, query, timeframe,
category_filter, metric, page, page_size,
totalcount)
return resp.json()
