javascript - How to filter information from an output that consists of "X": "Y", -

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i'm working nodered , using twitter node. i'm trying figure out how reply users if tweet 'x'.

the output consists of load of information comma separated , consist of "x": "y",

as in "user": "sanderschaeffer", "tweet": "this tweet", "date": "01-02-2015", etc.

how filter, preferably javascript or json, information contained "user"? output 'sanderschaeffer'?

or bottom-line: how reply user nodered? :)

apologies inconvenient title, don't know name of way of information output

you can use node-red switch node filter.

you can set act on msg.payload value , use contains option , enter text want match on box.

this should allow tweets match through. want use function node craft suitable response.

edit:

to sending user id access within function node follows:

msg.tweet.user.screen_name

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