Integrate Third Party API in GUI

5HATIM5 · May 10, 2023, 10:02am

Hi,

I need some guidance on how to integrate a third-party API in OpenEMS. Let’s say I have this API

‘https://api.example.com/data’

and I want to call it through Edge what steps do I need to take, I don’t want to call it through the GUI.

Explaining a little more I have a list of data that constantly updates and I call that API which has the data so how do I handle this through Edge and backend

venu-sagar · May 12, 2023, 11:49am

Hi,

It can be possible and one such implementation is already existing in OpenEMS.

We have implemented the API, in a certain way that every day we call the API at a particular time for updated data. We implemented it as a separate service, which makes synchronous calls and fetches data from the remote server.

Please look into it for reference implementation:

github.com

OpenEMS/openems/blob/develop/io.openems.edge.timeofusetariff.awattar/src/io/openems/edge/timeofusetariff/awattar/AwattarImpl.java

package io.openems.edge.timeofusetariff.awattar;

import java.io.IOException;
import java.time.Clock;
import java.time.Duration;
import java.time.Instant;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.temporal.ChronoUnit;
import java.util.TreeMap;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;

import org.osgi.service.component.ComponentContext;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.ConfigurationPolicy;
import org.osgi.service.component.annotations.Deactivate;

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