Stage variables are name-value pairs that you can define as configuration attributes associated with a deployment stage of a REST API. They act like environment variables and can be used in your API setup and mapping templates.
For example, you can define a stage variable in a stage configuration, and then set its value as the URL string of an HTTP integration for a method in your REST API. Later, you can reference the URL string using the associated stage variable name from the API setup. This way, you can use the same API setup with a different endpoint at each stage by resetting the stage variable value to the corresponding URLs. You can also access stage variables in the mapping templates, or pass configuration parameters to your AWS Lambda or HTTP backend.
Stage variables are name-value pairs that you can define as configuration properties associated with the REST API deployment stage. They have similar functions to environment variables and can be used for API settings and mapping templates.
For example, you can define a stage variable in the stage configuration, and then set its value to the URL string of the HTTP integration for the method in the REST API. After that, you can refer to the URL string using the associated stage variable name in the API settings. This way, you can use the same API settings for different endpoints in each stage by resetting the value of the stage variable to the corresponding URL. In addition, you can also access stage variables in the mapping template, or pass configuration parameters to AWS Lambda or HTTP backends.
For more information about the mapping template, please refer to API Gateway Mapping Template and Access Logging Variable Reference.
