SQLA and Flask: Planets Database Example -- More Queries and an API route

Published: 27 November 2023
on channel: Thomas Blum

In this video we continue our example of a simple SQLAlchemy database (just one table containing Planet data). We look a little more carefully at the queries. If we query the entire table (somewhat like a SELECT * in SQL), the result is a list of object. However, if we name specific columns we want in the query, the result is a list of "named tuples." In each case we can cast the results to a list of dictionaries. When we have objects we use __dict__, and when we have named tuples we use _asdict(). We change the query leading to our GridJS datatable, and we add a search functionality. Finally we add an API route that just dumps our the query results as JSON.

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