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A connector to connect to the Lizard-API ( with Python.

Project description



Connector to Lizard api (e.g. for python.

Includes: - Datatypes (experimental / alpha) - Endpoint (Easy access to Lizard api endpoints) - Connector (http handling) - queryfunctions for special cases such as geographical queries and time related queries other queries can be input as a dictionary - parserfunctions to parse the json obtained from Endpoint queries

Example usage

Use one endpoints in Python with the Endpoint class:

import lizard_connector
import datetime

# Fill in your username and password
timeseries = lizard_connector.connector.Endpoint(
    username = "example.username",
    password = "example_password",
    endpoint = 'timeseries'

endpoint = 'timeseries'
south_west = [48.0, -6.8]
north_east = [56.2, 18.9]

organisation_id = 'example_organisation_uuid'

start = datetime.datetime(1970, 1, 1)
end =

relevant_queries = [
    lizard_connector.queries.in_bbox(south_west, north_east, endpoint),
    lizard_connector.queries.organisation(organisation_id, endpoint),
    lizard_connector.queries.datetime_limits(start, end)

results =*relevant_queries)

Usage with PyQT (for Qgis plugins)

You can create a QThread worker like so:

from PyQt4.QtCore import QThread
from PyQt4.QtCore import pyqtSignal

class Worker(QThread):
    """This class creates a worker thread for getting the data."""
    output = pyqtSignal(object)

    def __init__(self, parent=None, endpoint=None, *querydicts, **queries):
        """Initiate the Worker."""
        super(Worker, self).__init__(parent)
        self._endpoint = endpoint
        self._querydicts = querydicts
        self._queries = queries

    def run(self):
        """Called indirectly by PyQt if you call start().
        This method retrieves the data from Lizard and emits it via the
        output signal as dictionary.
        data = self._endpoint._synchronous_download_async(
            *self._querydicts, **self._queries)


Changelog of lizard-connector

0.6 (2018-02-07)

  • Add explicit py2/3 imports to mitigate problems with the future library.

0.5 (2017-10-16)

  • Compatible with python 2.7.
  • Refactored pagination.
  • Added Async downloads with callback.
  • Removes max_result on Endpoint initialisation.

0.4 (2016-06-05)

  • Fixed bug in iteration over paginated results.
  • When all_pages is set to False all methods involving get return the object as an iterator.

0.3 (2016-05-06)

  • Http base urls are not allowed, throws exception when baseurl is not secure (i.e. does not start with https).
  • Fixed a bug that caused a get to run two times.

0.2 (2016-05-04)

  • Added Datatype classes.
  • Renamed Endpoint get and post to download and upload.

0.1 (2016-03-29)

  • Basic setup
  • Added tests
  • Initial project structure created with nensskel 1.37.dev0.

Project details

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