71 lines
2.6 KiB
Python
71 lines
2.6 KiB
Python
# backend.py
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# openeventdatabase
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import falcon
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import psycopg2
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import uuid
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import json
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class StatsResource(object):
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def on_get(self, req, resp):
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db = psycopg2.connect("dbname=oedb")
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cur = db.cursor()
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cur.execute("SELECT count(*) as events_count, max(createdate) as last_created, max(lastupdate) as last_updated from events;")
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stat = cur.fetchone()
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cur.close()
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db.close()
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resp.body = """{"events_count": %s, "last_created": "%s", "last_updated": "%s"}""" % (stat[0], stat[1],stat[2])
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resp.set_header('X-Powered-By', 'OpenEventDatabase')
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resp.set_header('Access-Control-Allow-Origin', '*')
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resp.set_header('Access-Control-Allow-Headers', 'X-Requested-With')
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resp.status = falcon.HTTP_200
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class EventResource(object):
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def on_get(self, req, resp):
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db = psycopg2.connect("dbname=oedb")
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cur = db.cursor()
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print(req.params['id'])
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# get data to display activity graphs
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cur.execute("""select * from events where events_id='%s';""", req.params['id'])
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e = cur.fetchone(e['events_tags'])
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resp.body = e
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resp.status = falcon.HTTP_200
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resp.set_header('X-Powered-By', 'OpenEventDatabase')
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resp.set_header('Access-Control-Allow-Origin', '*')
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resp.set_header('Access-Control-Allow-Headers', 'X-Requested-With')
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db.close()
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def on_post(self, req, resp):
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# get request body payload (json)
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body = req.stream.read().decode('utf-8')
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j=json.loads(body)
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# connect to db and insert
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db = psycopg2.connect("dbname=oedb")
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cur = db.cursor()
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cur.execute("""INSERT INTO events ( events_type, events_what, events_when, events_tags) VALUES (%s, %s, %s, %s) RETURNING events_id;""",(j['type'],j['what'],j['when'], body))
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# get newly created event id
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e = cur.fetchone()
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db.commit()
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cur.close()
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db.close()
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# send back to client
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resp.body = """{"id":"%s"}""" % (e[0])
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resp.set_header('X-Powered-By', 'OpenEventDatabase')
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resp.set_header('Access-Control-Allow-Origin', '*')
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resp.set_header('Access-Control-Allow-Headers', 'X-Requested-With')
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resp.status = falcon.HTTP_200
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# falcon.API instances are callable WSGI apps
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app = falcon.API()
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# Resources are represented by long-lived class instances
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event = EventResource()
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stats = StatsResource()
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# things will handle all requests to the matching URL path
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app.add_route('/event', event) # handle single event requests
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app.add_route('/stats', stats)
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