To add a payload to your API call, move to the “body” tab (remember to choose the appropriate method for this type of call)
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Write your payload as a JSON object in the highlighted field:
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During the conversation, the bot can collect information from the user and put it into variables, which we call “slots.”
If you want to insert a slot in your payload, you can assign it to a property of your JSON object by inserting it between double curly brackets, as in the example you see below:
{ "your_variable": "{{bot_slot_name}}" }