Error 401 Arduino ESP8266
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Hello,
I tried posting some values from my ESP8266 to thingspeak but it failed with an 401 error.
To be sure that the error was not in my code I tred loading the example code "WriteMultipleFields" with no changes, created a new channel and renewed the API key mulitple times.
This is the error message:
Connected.
ts::setField (field: 1 value: "0")
ts::setField (field: 2 value: "3")
ts::setField (field: 3 value: "31")
ts::setField (field: 4 value: "88")
ts::setStatus(status: field1 is less than field2")
Connect to default ThingSpeak: api.thingspeak.com:80...Success.
ts::writeFields (channelNumber: 964373 writeAPIKey: XXXXXXXXXXXXXXXX
Got Status of 200
Content Length: 1
Found end of header
Response: "0"
Entry ID "0" (0)
disconnected.
Problem updating channel. HTTP error code -401
Any suggestions on what could be wrong?
0 Kommentare
Akzeptierte Antwort
Vinod
am 22 Jan. 2020
Are you still seeing a '0' response code to your requests to update a channel?
Weitere Antworten (5)
Christopher Stapels
am 21 Jan. 2020
Bearbeitet: Christopher Stapels
am 22 Jan. 2020
Are you able to update your channel from a web browser?
Use the format
https://api.thingspeak.com/update?api_key=xxxxxxxxxxxxxxxx$field1=432
On the Error Codes page you can see the 401 is authorization required. Since ThingSpeak has a lot of API keys, it is possible that you grabbed the wrong key. Be sure its the channel write api key from the api keys tabl of the channel view.
Let us know if that works. If not, we can look into it further.
0 Kommentare
David Bird
am 23 Mär. 2020
Bearbeitet: David Bird
am 23 Mär. 2020
Hello,
I'm also getting 401 authriosation errors when using the Bulk update API:
The delta-time version works OK:
{
"write_api_key": "WRITE_API_KEY",
"updates": [{
"delta_t": 4,
"field1": 1.0,
"field2": "2.0"
},
{
"delta_t": 2,
"field1": 1.1,
"field2": 2.2,
"elevation": 6,
"status": "Good"
}
]
}
But the absolute time version does not:
{
"write_api_key": "WRITE_API_KEY",
"updates": [{
"created_at": "2020-03-23 09:26:02 -0000",
"field1": "1.0",
"field2": "2.0"
},
{
"created_at": "2020-03-23 10:27:27 -0000",
"field1": "1.1",
"field2": "2.2",
}
]
}
The JSON response from the server is:
{"status":"401","error":{"error_code":"error_auth_required","message":"Authorization Required","details":"Please provide proper authentication details."}}
So in the delta time version the Channel ID and Write key are correct and authorise, but in the absolute time variant they fail - it seems. I'm using
I note others have seen the same problem. It looks like there is an API problem.
1 Kommentar
Christopher Stapels
am 23 Mär. 2020
You have an extra comma in the second example:
"field2": "2.2",
should be
"field2": "2.2"
When I send it without to comma, it works. (with my write key and channel ID).
When I send it with the comma, I get a 400 error, not a 401. Can you check again and report if you are still seeing that error? We definitely want to be sure the correct error is returned.
David Bird
am 23 Mär. 2020
Actually that was an example from the API and I deleted a field, thereby leaving that stray ',', sorry about that. Heres a copy of my upload:
{
"write_api_key": "WRITE_API_KEY",
"updates": [{
"created_at": "2020-03-23 19:01:26 -0000",
"field1": 20.0,
"field2": 51.7,
"field3": 1026
},
{
"created_at": "2020-03-23 19:02:28 -0000",
"field1": 20.1
"field2": 51.7
"field3": 1026
}
]
}
Which returns 401 authroisation required.
7 Kommentare
David Bird
am 24 Mär. 2020
This is my POST request code:
if (client.connect(server, 80)) { // POST data to ThingSpeak
client.println("POST /channels/" + String(THINGSPEAK_CH_ID) + "/bulk_update.json HTTP/1.1"); // Replace YOUR-CHANNEL-ID with your ThingSpeak channel ID
client.println("Host: api.thingspeak.com");
client.println("User-Agent: mw.doc.bulk-update (Arduino ESP8266)");
client.println("Connection: close");
client.println("Content-Type: application/json");
client.println("Content-Length: " + String(jsonBuffer.length()));
client.println();
client.println(jsonBuffer);
}
Christopher Stapels
am 19 Apr. 2021
Bearbeitet: Christopher Stapels
am 20 Apr. 2021
@David BirdYou seem to be missing the API key in the latest version just above.
Cosimo Carbonelli
am 25 Jul. 2020
Sorry I have the same problem.
The content that i send through a POST to https://api.thingspeak.com/channels/MYCHANNELID/bulk_update.json is
{
"write_api_key": "MYAPIKEY",
"updates": [{
"created_at": "2020-07-24 11:34:28 -0738",
"field2": -68,
"field3": 25.4,
"field4": 1005,
"field5": 118,
"field6": 0,
"field7": 0
}]
}
and the error that I get is
{
"status": "401",
"error": {
"error_code": "error_auth_required",
"message": "Authorization Required",
"details": "Please provide proper authentication details."
}
}
but if I made GET requests using
it's all right.
What's wrong?
many thanks
Cosimo
2 Kommentare
Cosimo Carbonelli
am 26 Jul. 2020
Hi,
I found by myself the answer.
The problem was in the way I have built the json variable (in my Node RED environment). So it was a JavaScript problem and not a ThingSpeak API problem.
sorry
Cosimo
cog
am 12 Feb. 2023
Cosimo, what was it about how you were building the JSON that was causing the error?
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