How to remove a context variable in Watson Assistant service on IBM Cloud

Question

I am using this, but this only sets it to empty,

{
  \"context\": {
    \"time\": \"\",
    \"place\": \"\",
    \"things\": \"\",
    \"transport\": \"\"
           


        

Answer 1

For those using Watson Assistant on an older API version:

The best is to use context.remove() in the output section. I usually have an extra child node for cleanup.

{
  "output": {
    "text": {},
    "deleted": " "
  }
}

Because deleted is not part of the context section it won't be carried forward.

For those on recent API versions of Watson Assistant:

Set the variable to null. Here is the doc on "Deleting a context variable".

{
  "context": {
    "myvariable": null
  }
}