Arduino Yun REST API not working from inside Yun, only from external device

Official Hardware Classic Yún
1

Hi, I am trying to control the ATmega32u4 in Yun from a Python script running in the same Yun (AR9331) .

I am using the REST approach to achieve this, and wrote a simple sketch for ATmega32u4 to accept REST commands using the "Examples > Bridge > Bridge" sketch as a template.

It works ok as long as I send the commands using a browser from an external device (computer) like the following:

http://192.168.0.250/arduino/servo/70In which case the servo moves to the specified position.

But if I issue the commands from inside the Linux-side of the Arduino nothing happens. I have tried using Linux terminal commands like:

curl localhost/arduino/servo/20
curl localhost:5555/arduino/servo/20
curl -o a.txt http://localhost:5555/arduino/servo/20
wget -p http://localhost:5555/arduino/servo/20
wget -p http://localhost/arduino/servo/20

Some commands show an "Error 401", others show no error, but in either case the servo doesn't move.

Also inside Arduino I wrote a small python script:

import urllib2
urllib2.urlopen("http://localhost/arduino/servo/20").read()

Which also gives an "Error 401".

I haven't found a single example in the internet of using the REST approach from inside Arduino Terminal in several hours of searching. Every-time the examples show the case of using REST from an external browser.

Can anyone point me to a solution for being able to control the ATmega32u4 of YUN from a Python script running inside Yun?

Thanks.

2

SEE

401 Unauthorized (RFC 7235)

Similar to 403 Forbidden, but specifically for use when authentication is required and has failed or has not yet been provided. The response must include a WWW-Authenticate header field containing a challenge applicable to the requested resource. See Basic access authentication and Digest access authentication.

turn off the password protection when testing locally,

3

Did you try replacing localhost for the ip?

4

Try:

curl http://root:<password>@localhost/arduino/servo/20

There is no need to turn off security globally.