I need some help! I am not a developer but I have used node red for a solar monitor and it is working great. I have purchased a WiFi temperature monitor that has an API, which it is giving me in a string format (See Below). I want to take the Field8 Value which is 40 and put it in a gauge and I dont…

If the data type being returned is a JSON string (as it appears in your post), you should pass it to the json node, set to output a JS Object. Then I would wire this to a change node, and use the JSONata expression payload.field8.value to extract just that number 40. The change node's JSONata expre…

Perfect that worked a treat thank you.

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Getting Data from a String

General

dceejay 13 May 2019 14:20 2

See this recent thread... Access a value on message
(including the bits at the end)

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Getting Data from a String

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