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After Enabling the VaRest Plugin, get VaRest subsystem in the event graph and from the blue pin, get Decode Json Object node. Put the Attach descriptor from the custom event to the descriptor of Decode Json Object node.
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After that is done, drag the pin from return value of Decode Json Object and Now get a node “Get Object Field” node and put the name of the Json Key that is being received from the response and you want to use.
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This plugin is provided by Epic Games originally and is also much easier to use without the need for any third-party plugin. In order to use it, drag the pin from Pixel Streaming Input component and search “Get Json String Value” node, if it cannot be found please disable the Context Sensitive. When you have added this node, simply attach descriptor received to the Descriptor of the node. The Field Name is actually the Json Key Name that is being received from the response, in this case it is open. The output of this node is a string value which represents the “value” in the Response received.
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