How to clear context?

[michael1]

Is there a way to clear entire context? I've found two ways to do that:

1. Use Switch -> delete.flow but it needs to be specified unless there is some way to delete all?
2. Use context.set() = undefined but it doesn't seem to work at all, I'm using it like this:
   
   

[Steve-Mcl]

@michael1

Is there a way to clear entire contex

Not out of the box. You would need to get the keys and iterate them, setting each one to undefined

const keys = flow.keys()

for (let index = 0; index < keys.length; index++) {
    const key = keys[index];
    flow.set(key, undefined)
}

---

BETTER MANAGEMENT of context:

Store all your context variables in a single object, then you can just delete that 1 single object.

[michael1]

Thank you very much, this works perfectly

[AleXSR700]

Could this also be used to reset all context context instead of flow context?

I tried

const flowkeys = flow.keys()
for (let index = 0; index < flowkeys.length; index++) {
    const flowkey = flowkeys[index];
    flow.set(flowkey, undefined)
}
const contextkeys = context.keys()
for (let index = 0; index < contextkeys.length; index++) {
    const contextkey = contextkeys[index];
    context.set(contextkey, undefined)
}
return msg

but the context context were not deleted. I would imagine maybe because they are not available outside of the respective nodes.

[Steve-Mcl]

It would only work for the own nodes context. So for every function you have context, you would need to run that code.

You could setup a conditional section of code e.g.

if(msg.topic === 'clear') {
   // clear context code
  return
}
// other code here

In each of the functions.

Or, better, set up a link call subroutine and send the context to clear to a common "clear context" subroutine. So you don't have code duplication.