add-env-vars-to-a-lambda.mdx

sidebar_position	sidebar_label	description	keywords
4	Add custom environment variables	Learn how to add and access custom environment variables to your lambda connector.	hasura hasura ddn cicd api deployment business logic

Add Custom Environment Variables

Introduction

Custom environment variables allow you to define configuration values specific to your deployment. These variables can be used to set API keys, connection strings, or other parameters that your application or connectors need. When you run the ddn connector env add command, it automatically updates multiple files to ensure the environment variables are available across your project:

• .env: Adds the variable to the current context's environment configuration file for easy access during development.
• connector.yaml: Updates the connector's configuration to include the variable for deployment.
• compose.yaml: Ensures the variable is included in the Docker Compose configuration for runtime.

Add an environment variable

ddn connector env add <connector_name> --env FOO=bar

Repeat these steps for each additional variable.

Use an environment variable

After creating a new build and running your connector, you can access your environment variable(s) via whatever conventions your language of choice prefers. For detailed instructions, refer to the following resources:

• Node.js: Using dotenv
• Python: Using python-dotenv
• Go: Using godotenv