Ready to get started?

Learn more about CData Cloud Hub or sign up for a free trial:

Learn More

Connect to Trello Data as a Federated Tables in MySQL

Use the CData Cloud Hub to set up federated tables for Trello data in MySQL .

You can use the CData Cloud Hub to set up federated tables in MySQL for Trello data. The Cloud Hub provides a MySQL interface for Trello: After configuring a virtual MySQL database for Trello, you can create a server and tables using the FEDERATED Storage Engine in MySQL. You can then work with Trello data just as you would local MySQL tables.

The CData Cloud Hub provides a pure MySQL, cloud-to-cloud interface for Trello, allowing you to easily query live Trello data alongside existing MySQL data — all without replicating the data. Using optimized data processing out of the box, the CData Cloud Hub pushes all supported SQL operations (filters, JOINs, etc) directly to Trello, leveraging server-side processing to quickly return Trello data.

Create a Virtual MySQL Database for Trello Data

CData Cloud Hub uses a straightforward, point-and-click interface to connect to data sources and generate APIs.

  1. Login to Cloud Hub and click Databases.
  2. Select "Trello" from Available Data Sources.
  3. Enter the necessary authentication properties to connect to Trello.

    Trello uses token-based authentication to grant third-party applications access to their API. When a user has granted an application access to their data, the application is given a token that can be used to make requests to Trello's API.

    Trello's API can be accessed in 2 different ways. The first is using Trello's own Authorization Route, and the second is using OAuth1.0.

    • Authorization Route: At the moment of registration, Trello assigns an API key and Token to the account. See the Help documentation for information on how to connect via the Authorization route.
    • OAuth Route: Similar to using Authorization, OAuth creates an Application Id and Secret when you create your account. See the Help documentation for information on how to to connect.

  4. Click Test Database.
  5. Click Privileges -> Add and add the new user (or an existing user) with the appropriate permissions.

With the virtual database created, you are ready to connect to Trello data from any MySQL client.

Create a FEDERATED Server and Tables for Trello Data

After you have configured and started the service, create a FEDERATED server to simplify the process of creating FEDERATED tables:

Create a FEDERATED Server

The following statement will create a FEDERATED server based on the Cloud Hub. Note that the username and password of the FEDERATED server must match a user account you defined on the Cloud Hub.

CREATE SERVER fedTrello
FOREIGN DATA WRAPPER mysql
OPTIONS (USER 'cloud_hub_user', PASSWORD 'cloud_hub_passwd', HOST 'myinstance.cdatacloud.net', PORT 3306, DATABASE 'trellodb');

Create a FEDERATED Table

To create a FEDERATED table using our newly created server, use the CONNECTION keyword and pass the name of the FEDERATED server and the remote table (Boards). Refer to the following template for the statement to create a FEDERATED table:

CREATE TABLE fed_boards (
  ...,
  boardid  TYPE(LEN),
  name  TYPE(LEN),
  ...,
)
ENGINE=FEDERATED
DEFAULT CHARSET=utf8
CONNECTION='fedTrello/Boards';

NOTE: The table schema for the FEDERATED table must match the remote table schema exactly. You can always connect directly to the Cloud Hub using any MySQL client and run SHOW COLUMNS FROM Boards to get the table schema.

Execute Queries

You can now execute queries to the Trello FEDERATED tables from any tool that can connect to MySQL, which is particularly useful if you need to JOIN data from a local table with data from Trello. Refer to the following example:

SELECT 
  fed_boards.boardid, 
  local_table.custom_field 
FROM 
  local_table 
JOIN 
  fed_boards 
ON 
  local_table.foreign_boardid = fed_boards.boardid;