Concept/implement a REST API for interacting with the clients

[aellwein]

In order to enable applications to interact with LwM2M clients connected to myLwM2M server, a REST API would be helpful.

The following proposal describes possible REST resources:

• GET /clients - get clients (paginated - to avoid too many results, query params possible for filtering)
• GET /client/{id} - query a client data by an endpoint id
• POST /client/{id}/read/{object_id}/{instance_id}/{resource_id} - read on object ID,instance,resource, the last two are optional
• POST /client/{id}/write/{object_id}/{instance_id}/{resource_id} - write on given object/instance/resource, payload must contain the new value
• POST/client/{id}/writeattributes/{object_id}/{instance_id}/{resource_id} - write attributes/configure observe. Payload contains the attributes.
• POST /client/{id}/execute/{object_id}/{instance_id}/{resource_id} - execute an operation on object/instance/resource.
  ...
  And so on.

As a content type i would suggest application/json.

[aellwein]

I think Tornado would be a good choice for a internal REST API provider (as it supports many cool and useful features like user authentication). aiohttp would also be a candidate, however, there are some features missing.