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→Testing the connection
==Testing the connection==
Once the function has been deployed, on the edge device you should see the following messages in the <code>runtime.log</code> file.
<pre class="board-terminal">
[2019-08-07T11:41:02.43+02:00][INFO]-Start subscribing. {"numOfTopics": 2, "clientId": "SBCSPG_grp0_Core"}
[2019-08-07T11:41:02.43+02:00][INFO]-Trying to subscribe to topic $aws/things/SBCSPG_grp0_Core-gda/shadow/update/delta
[2019-08-07T11:41:02.6+02:00][INFO]-Trying to subscribe to topic $aws/things/SBCSPG_grp0_Core-gda/shadow/get/accepted
[2019-08-07T11:41:02.89+02:00][INFO]-Created worker. {"functionArn": "arn:aws:lambda:::function:GGTES", "workerId": "ed4e9532-696d-41a2-77e8-96f5226f8138", "pid": 1646}
[2019-08-07T11:41:02.933+02:00][INFO]-All topics subscribed. {"clientId": "SBCSPG_grp0_Core"}
[2019-08-07T11:41:03.306+02:00][INFO]-Created worker. {"functionArn": "arn:aws:lambda:::function:GGShadowService", "workerId": "d22b0689-28bc-472c-5637-dc67d673cb76", "pid": 1658}
[2019-08-07T11:41:03.708+02:00][INFO]-Created worker. {"functionArn": "arn:aws:lambda:::function:GGShadowSyncManager", "workerId": "9783bd15-4674-41ee-6578-653bfeef2cd3", "pid": 1668}
[2019-08-07T11:41:04.098+02:00][INFO]-Created worker. {"functionArn": "arn:aws:lambda:::function:GGSecretManager:1", "workerId": "d0ef6e38-e19c-4e1f-6e16-1a82ccd115fa", "pid": 1680}
[2019-08-07T11:41:04.328+02:00][INFO]-Started all system components.
[2019-08-07T11:41:04.37+02:00][INFO]-Created worker. {"functionArn": "arn:aws:lambda:us-east-2:504613037555:function:Greengrass_HelloWorld:1", "workerId": "373c16da-f79a-44b1-7640-7ca327d730ef", "pid": 1691}
[2019-08-07T11:41:05.963+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:41:11.004+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:41:16.036+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:41:21.074+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:41:26.116+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:41:31.151+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:41:36.186+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:41:41.23+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:41:46.278+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:41:51.322+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:41:56.359+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:42:01.399+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:42:06.441+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:42:11.481+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:42:16.522+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:42:21.57+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:42:26.612+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:42:31.656+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:42:36.705+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:42:41.742+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:42:46.787+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
[2019-08-07T11:42:51.828+02:00][INFO]-Handled functions request. {"functionName": "arn:aws:lambda:::function:GGRouter", "invocationId": ""}
</pre>
On the cloud, the log of the received messages should look like this:
[[File:AWS-GGC-hello-world.png|thumb|center|600px|TBD]]