How to Build an ETL App for Toggl Data in Python with CData

The rich ecosystem of Python modules lets you get to work quickly and integrate your systems more effectively. With the CData API Driver for Python and the petl framework, you can build Toggl-connected applications and pipelines for extracting, transforming, and loading Toggl data. This article shows how to connect to Toggl with the CData Python Connector and use petl and pandas to extract, transform, and load Toggl data.

With built-in, optimized data processing, the CData Python Connector offers unmatched performance for interacting with live Toggl data in Python. When you issue complex SQL queries from Toggl, the driver pushes supported SQL operations, like filters and aggregations, directly to Toggl and utilizes the embedded SQL engine to process unsupported operations client-side (often SQL functions and JOIN operations).

Connecting to Toggl Data

Connecting to Toggl data looks just like connecting to any relational data source. Create a connection string using the required connection properties. For this article, you will pass the connection string as a parameter to the create_engine function.

Start by setting the Profile connection property to the location of the Toggl Profile on disk (e.g. C:\profiles\Toggl.apip). Next, set the ProfileSettings connection property to the connection string for Toggl (see below).

Toggl API Profile Settings

Obtain your API key from your Toggl account Profile Settings page, where it is listed under the API section.

After installing the CData Toggl Connector, follow the procedure below to install the other required modules and start accessing Toggl through Python objects.

Install Required Modules

Use the pip utility to install the required modules and frameworks:

pip install petl
pip install pandas

Build an ETL App for Toggl Data in Python

Once the required modules and frameworks are installed, we are ready to build our ETL app. Code snippets follow, but the full source code is available at the end of the article.

First, be sure to import the modules (including the CData Connector) with the following:

import petl as etl
import pandas as pd
import cdata.api as mod

You can now connect with a connection string. Use the connect function for the CData Toggl Connector to create a connection for working with Toggl data.

cnxn = mod.connect("Profile=C:\profiles\Toggl.apip;ProfileSettings='APIKey=your_api_key';")

Create a SQL Statement to Query Toggl

Use SQL to create a statement for querying Toggl. In this article, we read data from the Clients entity.

sql = "SELECT Id, WorkspaceId FROM Clients WHERE IsArchived = 'false'"

Extract, Transform, and Load the Toggl Data

With the query results stored in a DataFrame, we can use petl to extract, transform, and load the Toggl data. In this example, we extract Toggl data, sort the data by the WorkspaceId column, and load the data into a CSV file.

Loading Toggl Data into a CSV File

table1 = etl.fromdb(cnxn,sql)

table2 = etl.sort(table1,'WorkspaceId')

etl.tocsv(table2,'clients_data.csv')

With the CData API Driver for Python, you can work with Toggl data just like you would with any database, including direct access to data in ETL packages like petl.

Free Trial & More Information

Download a free, 30-day trial of the CData API Driver for Python to start building Python apps and scripts with connectivity to Toggl data. Reach out to our Support Team if you have any questions.

Full Source Code

import petl as etl
import pandas as pd
import cdata.api as mod

cnxn = mod.connect("Profile=C:\profiles\Toggl.apip;ProfileSettings='APIKey=your_api_key';")

sql = "SELECT Id, WorkspaceId FROM Clients WHERE IsArchived = 'false'"

table1 = etl.fromdb(cnxn,sql)

table2 = etl.sort(table1,'WorkspaceId')

etl.tocsv(table2,'clients_data.csv')