amit12cool
commented
4 years ago @anthonyvercolano Did you get a chance to look at this? I did an initial set up of Azure function in Nodejs as below:-
module.exports = async function (context, req) {
const regId = req.body.deviceRuntimeContext.registrationId;
console.log('regId is', regId);
const response = {
status: 200,
message: 'Device registered successfully'
};
if (!regId)
{
response.status = 500
}
console.log('req is', JSON.stringify(req.body));
const requestCustomPayload = req.body.deviceRuntimeContext.payload;
console.log('edgeDeviceId is', req.body.deviceRuntimeContext.payload.edgeDeviceId);
console.log('hubName is', req.body.deviceRuntimeContext.payload.hubName);
return {
iotHubHostName: req.body.deviceRuntimeContext.payload.hubName,
initialTwin: {
tags: {
iotScope: {
deviceScope: req.body.deviceRuntimeContext.payload.edgeDeviceId
}
},
properties: {
desired: {}
}
}
};
}In the above code I'm finding it difficult to update the twin state. Does the device provisioning service sdk for node js provides an api to update the initial twin like c# does here. Unfortunately, Im getting the error on device side as error registering device: ProvisioningRegistrationFailedError: registration failed. Im using the azure-sdk-node register_symkeygroup.js class to register my device.
YoDaMa
rajeevmv
nberdy
I need to allocate my device using custom allocation policy for DPS. I have set up the infrastructure that is the enrollment group, Azure function and my device. I'm abe to send the custom payload to Azure function. But below are some issues I need help into:-
1) Is there any reference for NodeJS Azure function which handles the DPS custom allocation policy logic? I found for C# only in Azure docs.
2) Is it possible I parse the relevant payload in my Azure function and reassign the policy to say Evenly distributed thus IoT Hub for device registration will be chosen by DPS.
3) Do you have any example to update the initial twin of the DPS in Azure function in Nodejs?
4) Also could you guide me to link in service sdk to create the parent chile relationship between edge device and leaf device.
Note:- Using custom allocation policy I just need to fetch the payload and update the initial twin of device only.
AB#8208968