Package: yfscreen 0.1.3

yfscreen: Yahoo Finance 'screener' API

Simple and efficient access to Yahoo Finance's 'screener' API <https://finance.yahoo.com/research-hub/screener/> for querying and retrieving financial data. The 'yfscreen' package abstracts the complexities of interacting with Yahoo Finance APIs, such as session management, crumb and cookie handling, query construction, pagination, and JSON payload generation. This abstraction allows users to focus on filtering and retrieving data rather than managing API details. Use cases include screening across a range of security types such as equities, mutual funds, ETFs, indices, and futures. The package supports advanced query capabilities, including logical operators, nested filters, and customizable payloads. It automatically handles pagination for efficient retrieval of large datasets by fetching results in batches of up to 250 entries per request. Filters are defined as lists of conditions to accommodate a wide range of screens. The implementation uses standard HTTP libraries to handle API interactions efficiently and supports both R and 'Python' to make it accessible for a broad audience.

Authors:Jason Foster [aut, cre]