Shopify Flow has an improved Send HTTP request action that supports a broader range of integrations with external services by securely storing secrets and returning data to subsequent workflow steps. The action can be securely configured with secrets, such as access tokens or passwords, that are encrypted and obfuscated in Flow. After sending an HTTP request, the full response is returned to the workflow and can be parsed using a Run code action with a JSON.parse method to define a schema so that returned data can be used as variables in conditions and actions.
This is a companion discussion topic for the original entry at https://shopify.dev/changelog/flow-improved-send-http-request-action-enables-secure-connections-and-returns-data-to-the-workflow