Okay, I've tried a few different ways to post to any channel I've created but haven't had any success. I'm going to throw up a channel for anyone else to try and post to just in case I'm doing something way wrong. Originally I tried to post temerature data from a nodemcu/esp8266 and when that didn't work I set up another channel and used Postman to try and send data. That didn't work either. I can do GET requests to see channel info but I can't get any data to post to the channel. Any help is appreciated.
I made a test channel and made it public just to see if anyone can post to it. It's just a single field and on a free account so don't go crazy.
write: KYY2MERT251RV2OM
read: S325VXRJTWDUZQRI
Postman:
GET https://api.thingspeak.com/channels.json?api_key=XXXXXXXXXXXXXXXXX (Not sharing my account key but JSON results show the channel)
[
{
"id": 897564,
"name": "testCount",
"description": "",
"latitude": "0.0",
"longitude": "0.0",
"created_at": "2019-10-29T23:06:45Z",
"elevation": "",
"last_entry_id": null,
"public_flag": true,
"url": "",
"ranking": 30,
"metadata": "",
"license_id": 0,
"github_url": null,
"tags": [],
"api_keys": [
{
"api_key": "KYY2MERT251RV2OM",
"write_flag": true
},
{
"api_key": "S325VXRJTWDUZQRI",
"write_flag": false
}
]
}
]
Tried both the GET and POSTMAN tutorials here with no luck: https://www.mathworks.com/help/thingspeak/writedata.html
Any attempt to use a GET or POST to update the channel (field1) results in a return of '0' or 401, which I think means that Thingspeak is not recognizing my write API key. I've had the same problem on multiple channels.
Much appreciate any help. Please let me know if you need more information.
Best Answer