How to Parse JSON from Web Request

Hello,

I am new to both Workflow 5 and APIs. I am trying to create a workflow that will collect weather data from an API so that I can grab the aspects of the weather observations I need and add them to a new record in a SQL table. I'm sure I can figure out the bulk of the workflow on my own, but I don't know how to go about grabbing the pieces of information I need from the JSON returned from the API.

I looked at the "Earthquake API Request" sample workflow, but it doesn't do what I want. I don't need the geometry or symbol from the resulting JSON. I just want the description, temperature, windSpeed, and windDescShort values.

Here is a URL that gives you an idea of what the resulting JSON looks like:

https://developer.here.com/documentation/examples/rest/auto_weather/weather-observation-lat-long

I was playing around with the Parse JSON activity to try to spit one of the values out in an alert, but I haven't had any luck yet.

Any help would be much appreciated!

Thanks,

Denise

Berend Veldkamp

12. Februar 2020 11:00

You don't need to do any parsing. Just use a Send Web Request with these parameters:

Url: https://weather.cit.api.here.com/weather/1.0/report.json
Query:

={
product: "observation",
latitude: 52.516,
longitude: 13.389,
oneobservation: true,
app_id: "devportal-demo-20180625",
app_code: "9v2BkviRwi9Ot26kp2IysQ"
}

Expect: json

This will give you an object with everything from the json. E.g. an Alert with

=$webRequest1.json.observations.location[0].observation[0].description

will show 'Partly sunny. Quite cool.'

Denise Beckham

12. Februar 2020 17:47

This is exactly what I needed! The only experience I've had with JSON has been making small edits to the config files of the HTML viewer, so I honestly had no idea what I was doing in this case.

The syntax you gave for showing the description in an alert is extremely helpful! Thank you so much, Berend!

How to Parse JSON from Web Request

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