Creating new blobs
Blobs are created by the device in Span. A blob is created by POSTing a request to one of two HTTP endpoints. If your device is connected via one of the cellular IoT gateways in Span you can just send an unencrypted POST request to the default IP address:
http://172.16.15.14/
If you use an Internet-connected device you can POST to
https://data.lab5e.com/
The internet-facing server needs a client certificate.
The path is optional and will be included in the blob metadata in the API. The Content-Type header is optional but recommended.