Registering a sensor in an TTN application via API

descartes · June 2, 2021, 11:15am

Not forgotten you, at worst can look at it after supper

LoRa_AuH · June 7, 2021, 6:14am

Good morning descartes,

Can you please have a look today at my code and give me a useful tip to solve my issue?

Kind regards
Imran Khan

descartes · June 7, 2021, 8:57am

Not sure if it will be today - in the end I had to backup 5Tb so I could re-install from a clean disk - but I’ll leave it open on my desktop to remind me.

descartes · June 7, 2021, 9:16am

Ah, hang on, whilst copying & pasting this over so I can have this open I see that you have replaced the field mask static values with variables for no apparent reason - I have no idea what effect this will have but it’s not in the Python (which I’ve confirmed works) and it’s not in the documentation either, although that’s not explicitly shown but there is an example here:

https://www.thethingsindustries.com/docs/getting-started/api/#multi-step-actions

So,:

'field_mask' => [
	 'paths' => [
			'eu1.cloud.thethings.network',
			'eu1.cloud.thethings.network',
			'eu1.cloud.thethings.network',
			$this->devEui,
			$this->appEui,
			$this->deviceId
			],
	 ],
];

should be

'field_mask' => [
	 'paths' => [

  "join_server_address", 
  "network_server_address", 
  "application_server_address", 
  "description", 
  "name", 
  "ids.dev_eui", 
  "ids.join_eui"

	 ],
];

But I’m yet to figure out the details of the field mask, I suspect that’s what it’s being told to return. But certainly giving it data rather than field names isn’t going to help.

LoRa_AuH · June 8, 2021, 6:18am

descartes:

'field_mask' => [
	 'paths' => [

  "join_server_address", 
  "network_server_address", 
  "application_server_address", 
  "description", 
  "name", 
  "ids.dev_eui", 
  "ids.join_eui"

	 ],
];

Good morning descartes,
In my last attempt, I set the field mask the same as you suggested. The response of all the Post requests shows a success message but the device join to the TTN is not happening. The device tries all the time to find the network.
If you see the given above screenshots, The Post request is unable to write LoRaWAN version, Regional parameters version, and Frequency plan. The Activation mode also shows ABP activation.

Kind regards,
Imran Khan

descartes · June 8, 2021, 7:21am

Did you correct the field masks for the other three requests too?

LoRa_AuH · June 8, 2021, 10:16am

Yes, I corrected all the four field masks for all the four Post requests.

descartes · June 8, 2021, 10:17am

And the result was …

LoRa_AuH · June 8, 2021, 10:23am

The device got registered in the TTN but there are many field which are left empty. Network layer is left empty as given below.

OTAA is also not activated and the device is unable to make a join.
The join server settings look fine though but device is unable to join the network. The Join server screenshot is given below.

descartes · June 8, 2021, 10:24am

OK, as per other thread, I’m due some light relief today, let me see what I can rustle up!

LoRa_AuH · June 8, 2021, 10:26am

Thanks

descartes · June 8, 2021, 4:41pm

OK, bit of boring debugging later and I found the culprit by comparing the Python JSON to the PHP JSON:

$data3 = [
‘end_device’ => [
‘multicate’ => False,

mulitcate should be multicast

and

‘field_mask’ => [
‘path’ => [

path should be paths

Here’s the whole lot, partial reworked as the use of data1, data2 etc is banned under the Geneva Convention:

<?php

$apiKey = "NNSXS.T0P.53CR3T.AP1.K3Y"

$app_id = "descartes-test01v3";
$app_eui = "0000000000000000";

$device_id = "otaa-test-setup-55";
$dev_eui = "9999999999999955";
$app_key = "19BEC34220EBF366070B59F723F234BE";

$idServer = [
	'end_device' => [
		'ids' => [
			'device_id' => $device_id,
			'dev_eui' => $dev_eui,
			'join_eui' => $app_eui
		],
		'join_server_address' => 		'eu1.cloud.thethings.network',
		'network_server_address' => 	'eu1.cloud.thethings.network',
		'application_server_address' => 'eu1.cloud.thethings.network',
		'name' => $device_id
	],
	'field_mask' => [
		'paths' => [
			'join_server_address', 'network_server_address', 'application_server_address', 'ids.dev_eui', 'ids.join_eui', 'name'
		]
	]
];

$joinServer = [
	'end_device' => [
		'ids' => [
			'device_id' => $device_id,
			'dev_eui' => $dev_eui,
			'join_eui' => $app_eui
		],
		'network_server_address' => 	'eu1.cloud.thethings.network',
		'application_server_address' => 'eu1.cloud.thethings.network',
		'network_server_kek_label' => '',
		'application_server_kek_label' => '',
		'application_server_id' => '',
		'net_id' => Null,
		'root_keys' => [
			'app_key' => [
				'key' => $app_key
			],
		],
	],
	'field_mask' => [
		'paths' => [
			 'network_server_address', 'application_server_address', 
			 'ids.device_id', 'ids.dev_eui', 'ids.join_eui', 
			 'network_server_kek_label', 'application_server_kek_label', 
			 'application_server_id', 'net_id', 'root_keys.app_key.key'
		],
	]
];

$networkServer = [
	'end_device' => [
		'multicast' => False,
		'supports_join' => True,
		'lorawan_version' => "MAC_V1_0_2",
		'ids' => [
			'device_id' => $device_id,
			'dev_eui' => $dev_eui,
			'join_eui' => $app_eui
		],
		'mac_settings' => [
			'supports_32_bit_f_cnt' => True
		],
		'supports_class_c' => False,
		'supports_class_b' => False,
		'lorawan_phy_version' => "PHY_V1_0_2_REV_B",
		'frequency_plan_id' => "EU_863_870_TTN"
	 ],
	'field_mask' => [
		'paths' => [
			'multicast', 'supports_join', 'lorawan_version',
			'ids.device_id', 'ids.dev_eui', 'ids.join_eui',
			'mac_settings.supports_32_bit_f_cnt',
			'supports_class_c', 'supports_class_b',
			'lorawan_phy_version', 'frequency_plan_id' 
		]
	]
];


$applicationServer = [
	'end_device' => [
		'ids' => [
			'device_id' => $device_id,
			'dev_eui' => $dev_eui,
			'join_eui' => $app_eui
		],
	],
	'field_mask' => [
		'paths' => [
			'ids.device_id', 'ids.dev_eui', 'ids.join_eui'
		]
	]
];
		
$data_end_device= json_encode($idServer);
$data_join_server = json_encode($joinServer);
$data_network_server = json_encode($networkServer);
$data_application_server = json_encode($applicationServer);

$url1 = 'https://eu1.cloud.thethings.network/api/v3/applications/'.$app_id.'/devices';
$url2 = 'https://eu1.cloud.thethings.network/api/v3/js/applications/'.$app_id.'/devices';
$url3 = 'https://eu1.cloud.thethings.network/api/v3/ns/applications/'.$app_id.'/devices';
$url4 = 'https://eu1.cloud.thethings.network/api/v3/as/applications/'.$app_id.'/devices';

$authorization = "Authorization: Bearer " . $apiKey;

print($data_end_device."\n");
$ch1 = curl_init($url1);
curl_setopt($ch1, CURLOPT_HTTPHEADER, array($authorization, 'Content-Type: application/json'));
curl_setopt($ch1, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch1, CURLOPT_POSTFIELDS, $data_end_device);
curl_setopt($ch1, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch1, CURLOPT_FOLLOWLOCATION, 1);
$result1 = curl_exec($ch1);
curl_close($ch1);
print($result1."\n\n\n");
                
print($data_join_server."\n");  
$ch2 = curl_init($url2);
curl_setopt($ch2, CURLOPT_HTTPHEADER, array($authorization, 'Content-Type: application/json'));
curl_setopt($ch2, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch2, CURLOPT_POSTFIELDS, $data_join_server);
curl_setopt($ch2, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch2, CURLOPT_FOLLOWLOCATION, 1);
$result2 = curl_exec($ch2);
curl_close($ch2);
print($result2."\n\n\n");   

print($data_network_server."\n");                
$ch3 = curl_init($url3);
curl_setopt($ch3, CURLOPT_HTTPHEADER, array($authorization, 'Content-Type: application/json'));
curl_setopt($ch3, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch3, CURLOPT_POSTFIELDS, $data_network_server);
curl_setopt($ch3, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch3, CURLOPT_FOLLOWLOCATION, 1);
$result3 = curl_exec($ch3);
curl_close($ch3);
print($result3."\n\n\n");

print($data_application_server."\n");  
$ch4 = curl_init($url4);
curl_setopt($ch4, CURLOPT_HTTPHEADER, array($authorization, 'Content-Type: application/json'));
curl_setopt($ch4, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch4, CURLOPT_POSTFIELDS, $data_application_server);
curl_setopt($ch4, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch4, CURLOPT_FOLLOWLOCATION, 1);
$result4 = curl_exec($ch4);
curl_close($ch4);
print($result4."\n\n\n");

Will do some more tidying up and put this in to a repro

LoRa_AuH · June 9, 2021, 12:15pm

Many Many Thanks
I will also share my code once it is up and runing.

system · June 10, 2021, 12:15pm

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