How to use SQLAlchemy ORM to access Instantly Data in Python
The rich ecosystem of Python modules lets you get to work quickly and integrate your systems effectively. With the CData API Driver for Python and the SQLAlchemy toolkit, you can build Instantly-connected Python applications and scripts. This article shows how to use SQLAlchemy to connect to Instantly data to query Instantly data.
With built-in optimized data processing, the CData Python Connector offers unmatched performance for interacting with live Instantly data in Python. When you issue complex SQL queries from Instantly, the CData Connector pushes supported SQL operations, like filters and aggregations, directly to Instantly and utilizes the embedded SQL engine to process unsupported operations client-side (often SQL functions and JOIN operations).
Connecting to Instantly Data
Connecting to Instantly 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.
Using API Key Authentication
Instantly uses API keys to authenticate requests. You can find or create your API key in the Instantly workspace settings under API & Webhooks.
After setting the following connection properties, you are ready to connect:
- AuthScheme: Set this to APIKey.
- APIKey: Set this to your Instantly API key (Bearer token for API v2).
Example connection string
Profile=C:\profiles\Instantly.apip;AuthScheme=APIKey;ProfileSettings="APIKey=your_api_key";
Follow the procedure below to install SQLAlchemy and start accessing Instantly through Python objects.
Install Required Modules
Use the pip utility to install the SQLAlchemy toolkit and SQLAlchemy ORM package:
pip install sqlalchemy pip install sqlalchemy.orm
Be sure to import the appropriate modules:
from sqlalchemy import create_engine, String, Column from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import sessionmaker
Model Instantly Data in Python
You can now connect with a connection string. Use the create_engine function to create an Engine for working with Instantly data.
NOTE: Users should URL encode the any connection string properties that include special characters. For more information, refer to the SQL Alchemy documentation.
engine = create_engine("api:///?Profile=C:\profiles\Instantly.apip&AuthScheme=APIKey&ProfileSettings="APIKey=your_api_key"")
Declare a Mapping Class for Instantly Data
After establishing the connection, declare a mapping class for the table you wish to model in the ORM (in this article, we will model the AccountCampaignMappings table). Use the sqlalchemy.ext.declarative.declarative_base function and create a new class with some or all of the fields (columns) defined.
base = declarative_base() class AccountCampaignMappings(base): __tablename__ = "AccountCampaignMappings" = Column(String,primary_key=True) = Column(String) ...
Query Instantly Data
With the mapping class prepared, you can use a session object to query the data source. After binding the Engine to the session, provide the mapping class to the session query method.
Using the query Method
engine = create_engine("api:///?Profile=C:\profiles\Instantly.apip&AuthScheme=APIKey&ProfileSettings="APIKey=your_api_key"")
factory = sessionmaker(bind=engine)
session = factory()
for instance in session.query(AccountCampaignMappings).filter_by(=""):
print(": ", instance.)
print(": ", instance.)
print("---------")
Alternatively, you can use the execute method with the appropriate table object. The code below works with an active session.
Using the execute Method
AccountCampaignMappings_table = AccountCampaignMappings.metadata.tables["AccountCampaignMappings"]
for instance in session.execute(AccountCampaignMappings_table.select().where(AccountCampaignMappings_table.c. == "")):
print(": ", instance.)
print(": ", instance.)
print("---------")
For examples of more complex querying, including JOINs, aggregations, limits, and more, refer to the Help documentation for the extension.
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 Instantly data. Reach out to our Support Team if you have any questions.