enviroDIY server not responding to POST

I have been trying for several days to debug a problem with one of the examples from here:

https://github.com/EnviroDIY/EnviroDIY_Mayfly_Logger

In the Logging_t

I have been trying for several days to debug a problem with one of the examples from here:

https://github.com/EnviroDIY/EnviroDIY_Mayfly_Logger

In the Logging_to_data.EnviroDIY example, I cannot get the server to respond or take my POST.
I believe the xBee is set up correctly and connecting to the local wireless node. I am able to see the MAC address on Airport Utility, for example.

Here is an example of my post request and the response from Serial.io (with my tokens replaced with placeholders).

— Request —
POST /api/data-stream/ HTTP/1.1
Host: data.envirodiy.org
TOKEN: –My token here–
Cache-Control: no-cache
Content-Length: 195
Content-Type: application/json

{“sampling_feature”: “–my sampling feature UUID here–“, “timestamp”: “2018-02-11T17:
35:35-05:00”, “–my feature UUID here–“: 24.25, “–my feature UUID here–“: 1.47}

Request to data.envirodiy.org timed out, no response from server or insufficient signal t
o send message.

—
—

— Request —
…

I am wondering if the server API has changed recently.

Any suggestions for ways to debug this problem would be appreciated.

I have tried submitting the post directly to http://data.envirodiy.org/api/data-stream/

with this response:

HTTP 400 Bad Request
Allow: POST, OPTIONS
Content-Type: application/json
Vary: Accept

{
“detail”: “JSON parse error – No JSON object could be decoded”
}