Use a single stage in API Gateway. Create a Lambda function for each environment. Configure API clients to send a query parameter that indicates the endowment and the specific lambda function.

Use multiple stages in API Gateway. Create a single Lambda function for all environments. Add different code blocks for different environments in the Lambda function based on Lambda environments variables.

Use multiple stages in API Gateway. Create a Lambda function for each environment. Configure API Gateway stage variables to route traffic to the Lambda function in different environments.

Use a single stage in API Gateway. Configure a API client to send a query parameter that indicated the environment. Add different code blocks tor afferent environments in the Lambda Junction to match the value of the query parameter.