Converting python code to matlab code

Can someone please help me to convert the below python code into MATLAB?

%python code 

import requests
import random
import time



ENDPOINT = "api.somewebsite.com"
LABEL1 = "label1"
LABEL2 = "label2"
TOKEN = "XXXXXXXXXX"
DELAY = 1  # Delay in seconds


def post_var(payload, url=ENDPOINT, device=DEVICE_LABEL, token=TOKEN):
    try:
        url = "http://{}/api/v1.1/dev/{}".format(url, LABEL1)
        headers = {"X-Auth-Token": token, "Content-Type": "application/json"}

        attempts = 0
        status_code = 400

        while status_code >= 400 and attempts < 5:
            print("[INFO] Sending data, attempt number: {}".format(attempts))
            req = requests.post(url=url, headers=headers,
                                json=payload)
            status_code = req.status_code
            attempts += 1
            time.sleep(1)

        print("[INFO] Results:")
        print(req.text)
    except Exception as e:
        print("[ERROR] Error posting, details: {}".format(e))

def main():
    value = random.random() * 100
    payload = {LABEL2: value}
    post_var(payload)


if __name__ == "__main__":
    while True:
        main()
        time.sleep(DELAY)

Thanks,

A confused student

[KSSV]

If you tell what for the code is, you may already have a function for that in MATLAB.

[abc xyz]

The code is for sending data to a website via http.

[KSSV]

Have a look on publish. I am not sure whether this addresses your question or not.

Answer 1

[Ameer Hamza]

See webwrite(): https://www.mathworks.com/help/matlab/ref/webwrite.html

webread(): https://www.mathworks.com/help/matlab/ref/webread.html

and this link: https://www.mathworks.com/help/mps/restful-api-and-json.html

[abc xyz]

I tried webwrite but couln't do the headers part. I am a begginer in matlab. Please help...

[Ameer Hamza]

See HeaderFields option here: https://www.mathworks.com/help/matlab/ref/weboptions.html#d120e1362658. You can pass the weboptions object to webwrite function. Also see this answer: https://www.mathworks.com/matlabcentral/answers/264403-how-can-i-access-an-api-which-requires-oauth-2-0-authorization-such-as-google-apis.

[abc xyz]

I tried the following code but the server returned a 401 error, even when the python code works fine.

url = 'https://api.somewebsite.com/api/v1.1/dev/label1/';
headerFields = {'X-Auth-Token', 'xxxxxxxxxxxxxxxxxxx'};
options = weboptions('HeaderFields', headerFields, 'ContentType','json');
response = webwrite(url,['label2',50]);

please see what is the mistake.

[Ameer Hamza]

You need to pass options to webwrite

response = webwrite(url,['label2',50],options);

[abc xyz]

Now it is giving error 400 "Bad request". I checked the python code and the python code is still working. Please guide...

[Ameer Hamza]

Try following modifications one by one, and with combinations too, and see if it work.

Change the options to

headerFields = {'X-Auth-Token', 'xxxxxxxxxxxxxxxxxxx'; 'Content-Type', 'application/json'};
options = weboptions('HeaderFields', headerFields);

or

response = webwrite(url,['label2=',num2str(50)],options);

or

response = webwrite(url,'label2',50,options);

or

response = webwrite(url,'label2',num2str(50),options);

[abc xyz]

Third one worked. Thanks a lot.

[Ameer Hamza]

I am glad to be of help!