Calling Web Services

In general when connecting to web services, you use the HTTP API to pull or push data. The XML or JSON API can be very useful to parse or generate data.

Let's start with a simple example, getting the weather in London from the OpenWeatherMap web service

STEP 1: Connect to the API

In this example we're calling the open weather service:

Example URL:

local Url = 'http://api.openweathermap.org/data/2.5/weather'   

STEP 2: Configure the Parameters

This would include a table of parameters to be passed to the server.

Optional: Create a Custom Fields for the appid parameter

STEP 3: Call the web service and parse the request

Optional: Use the same approach to make any http requests

STEP 4: Modify the data and send to queue

For more advanced strategies for calling web services, see Building HTTP Requests and Handling HTTP Responses.