# Saving context variable to the localfilesystem immediately on change

**URL:** <https://discourse.nodered.org/t/saving-context-variable-to-the-localfilesystem-immediately-on-change/28515>\
**Category:** General\
**Created:** [18 June 2020 03:57 UTC](https://discourse.nodered.org/t/saving-context-variable-to-the-localfilesystem-immediately-on-change/28515 "2020-06-18T03:57:42Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [18 June 2020 08:27 UTC](https://discourse.nodered.org/t/saving-context-variable-to-the-localfilesystem-immediately-on-change/28515/8 "2020-06-18T08:27:53Z")

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Just be aware that if you turn off the cache, the store becomes a _asynchronous_ store, which means you cannot do:

```auto
var a = flow.get("foo");

```

You have to use the version with a callback function:

```auto
flow.get("foo", function(err, a) {
});
```

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_[View the full topic](https://discourse.nodered.org/t/saving-context-variable-to-the-localfilesystem-immediately-on-change/28515)._