PostgreSQL

PostgreSQL stands as an open-source object-relational database system, providing a secure environment for storing and efficiently managing diverse data workloads.

Prerequisite

1. Authentication Credentials to connect to your postgres instance. You will need either of the below two credentials option:

   • PostgreSQL database username and password.
   • AWS IAM authentication (for AWS-hosted PostgreSQL databases).

2. Connection Details:

   • Hostname of the PostgreSQL database.
   • Port number for database access.
   • Database name within the PostgreSQL host.

3. Firewall Rules:

   • Configure firewall settings to allow DronaHQ (IP whitelist) access to your PostgreSQL host.

Configuring Connector in DronaHQ

Configure your database category by providing below details. Choose between User and Password or AWS IAM Authentication. Validate the connection with Test connection and Save settings for secure and efficient database setup.

tip

DronaHQ can Auto fill crucial connection values like host, name, password, and more from the connector's connection string or from a AWS IAM credentials using AWS Import.

General

Field	Description
Host	Enter the Host Domain or IP
Port	Enter the Port number
Database Name	Enter the Database name
Authentication Type	Choose from User and Password or AWS IAM
Username	Enter the Username
Password	Enter the Password
AWS Access Key	Enter the AWS Access Key of your database.
AWS Secret Key	Enter the AWS Secret Key of your database.
AWS Region	Enter the AWS Region of your database.
Role to assume (ARN)	Enter the role to be used while accessing API. Example - arn:aws:iam::123456789012:role/RoleName

PostgreSQL with Sample details.

Admin

Advanced Option	Description
Connection Options	The key and value connection options in database configuration refer to specific settings (keys) and their corresponding values that dictate how the application connects to the database
Use Dynamic Database Host	Dynamically determine the host for the database connection.
Use Dynamic Database Name	Set the database name dynamically, allowing easy switching between databases.
Use Dynamic Database Credentials	Enable dynamic database credentials for secure and convenient management.
Enable Converting Queries to Prepared Statement	Opt for prepared statements to enhance database performance and security.
Connect using SSL	Securely access the database using an encrypted SSL connection, ensuring data integrity and confidentiality.
Enable SSH Tunneling	Securely access the database through encrypted SSH tunneling.
Whitelist IP	Enhance security by restricting database access to specific whitelisted IP addresses.

Adding Database Queries

After configuring the connector, access it in your Connector Library. To add queries, click Add query once the connection is ready. Create simple or complex queries, view tables and fields. Input Query name, run the query, and see results in Response.

Write Queries

tip

Use double curly brackets for dynamic variables. Test with sample values before saving. Link dynamic variables to controls/actions and more for runtime use.

Saved queries appear under your connector in Connector Library.

Added Queries

Supported Query Operations

Operations	Description
Raw SQL Query	Various select, insert, delete, update, join operations which are supported by PostgresSQL query. e.g. - select * from UserInfo;
Stored Procedure Call	You can call store procedure similar to that we call from workbench. e.g. - CALL getUserInfo;

Using PostgreSQL Connector

Data Bind using Data Query

Read/Display Data Query:

After configuring the PostgreSQL connector, locate it in Connector Library. To retrieve data from the PostgreSQL database, add a query to read the data.

Query used:

select * from industry_role

Query explanation:

This query selects all details from the industry_role schema's table, allowing you to display the data.

Get Data Query

Place the Table grid control from the Controls section. Bind data by selecting the PostgreSQL connector from Data Bind Options -> Quick Select -> Connector Library. . Choose the relevant query for displaying data and bind the preferred columns.

Displaying data

Using in Actionflow blocks

Delete Data Query:

For data deletion, create a query to remove details related to selected data.

Query used:

DELETE from industry_role WHERE id = {{id}};

Query explanation:

This query operates a delete action on the industry_role table, targeting the user-selected ID (primary key) for removal.

After saving your query after successful configuration testing.

1. In the table grid's Actions, choose delete_click.

2. Build the action flow:

   • Confirm task for user delete confirmation.
   • Server-side action with the delete data query.
   • Bind the id connector key to capture selected row's id.

3. Access id using Use Keywords for smooth action flow.

Actionflow for deleting data