Search

In this tutorial we will find a dataset by performing a search over metadata.

To follow along, start the Tiled server with example data from a Terminal.

tiled serve demo

Search Using the Python Client

Now, in a Python interpreter, connect with the Python client.

from tiled.client import from_uri

client = from_uri("http://localhost:8000")

Tiled has an extensible collection of queries. The client just has to construct the query, and server sorts out how to execute it as efficiently as possible given however the metadata and data are stored.

This example collection of data has several entries with metadata.

>>> client['short_table'].metadata
DictView({'animal': 'dog', 'color': 'red'})

>>> client['long_table'].metadata
DictView({'animal': 'dog', 'color': 'green'})

>>> client['structured_data'].metadata
DictView({'animal': 'cat', 'color': 'green'})

# etc.

We’ll search among them for entries where the term "dog" appears anywhere in the metadata.

>>> from tiled.queries import FullText

>>> client.search(FullText("dog"))
<Container {'short_table', 'long_table', 'wide_table'}>

The result has a subset of the contents of the original. Searches may be chained to progressively narrow results:

>>> client.search(FullText("dog")).search(FullText("red"))
<Container {'short_table', 'wide_table'}>

If there no matches, the result is an empty Node:

>>> client.search(FullText("something that will not be found"))
<Container {}>

More Queries

Above examples use the FullText query. Tiled supports many queries; see Queries.