This will be one of those posts I will use for easy access whenever looking for some Apache FreeMarker Expressions. This is all documented in the ODA docs.
Handy Expressions
In your flows, you can use FreeMarker expressions for a variety of purposes. Here are some commonly-used expressions.
Tip: Autocompletion guides you through writing these (and other) Apache FreeMarker expressions.
| Operation | Freemarker Expression | Result Type |
|---|---|---|
| Get name of parent flow | ${system.parentFlow} | String |
| Get event payload | ${skill.system.event.value.EVENT_NAME} | JSON object |
| Access NLP result | ${skill.system.nlpresult.value} | JSON object |
| Access skill-scope variable | ${skill.VAR_NAME} | |
| Access flow-scope variable | ${VAR_NAME} | |
| Access flow input param | ${INPUT_PARAM_NAME} | |
| Access user-scope variable | ${user.VAR_NAME} | |
| Access profile-scope variable | ${profile.VAR_NAME} | |
| Get Answer Intent answer | ${skill.system.event.value.intent.answer}Note: You can also use ${skill.system.event.value.answerIntent.answer}. | |
| Get intent name | ${skill.system.event.value.intent.intentName} | String |
| Get error message | ${skill.system.event.value.dialogError.errorMessage} | String |
| Access Resource bundle entry | ${skill.system.rb.RB_ENTRY_NAME} | Resource Bundle |
| Access the value of a custom parameter | ${skill.system.config.CUSTOM_PARAMETER_NAME} | String |