An agenda scraper framework for municipalities
pip i engage-scraper
The Engage Scraper is a standalone library that can be included in any service. The purpose of the scraper is to catalog a municipality's council meeting agendas in a usable format for such things as the engage-client and engage-backend.
To extend this library for your municipality, override the methods of the base class from the
scraper_core/ directory and put it in
scraper_logics/, prefacing it with your municipality name. For an example see the Santa Monica, CA example in the
scraper_logics/ directory. The Santa Monica example makes use of
htmlutils.py because it requires HTML scraping for its sources. Feel free to make PRs with new utilities (for example, PDF scraping, RSS scraping, JSON parsing, etc.). The Santa Monica example also uses SQLAlchemy for its models and that is what is preferred for use in the
dbutils.py, however you can use anything. ORMs are preferred rather than vanilla psycopg2 or the like.
To use the postgres
dbutils.py make sure to set these 5 environment variables (check
dev.env and see docker-compose usage below):
POSTGRES_HOSToptional a host or hostname that is resolvable. Defaults to localhost
POSTGRES_PORToptional defaults to 5432
POSTGRES_DBrequired The database used for cataloging your municipality's agendas.
An example of using the Santa Monica scraper library
from engage_scraper.scraper_logics import santamonica_scraper_logic scraper = santamonica_scraper_logic.SantaMonicaScraper(committee="Santa Monica City Council") scraper.get_available_agendas() scraper.scrape()
For SantaMonicaScraper instantiation
For twitter utils used in SantaMonicaScraer
To use the santa monica logic, you must create an App on twitter (will work to make this optional). Following making an app, please use the structure
dev.env file to insert the appropriate parameters. But make sure not to make changes to the repository's file. Copy the file up one directory and edit it there. Following the edit, use the
docker-compose.yml for testing. You can add examples to
examples/ and run them from the script in
scripts/ using the docker container.
For the SantaMonicaScraper class the init has these options
tz_string="America/Los_Angeles"# defaulted string
years=["2019"]# defaulted array of strings of years
committee="Santa Monica City Council"# defaulted string of council name
The exposed API methods for scraper are
.get_available_agendas()# To get available agendas, no arguments
.scrape()# To process agendas and store contents
Feel free to expose more
- Write wrappers for internal functions if you want to expose them
- Write extra functions to handle more complex municipality-specific tasks
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