ThingHTTP returns -1

2 visualizaciones (últimos 30 días)
Egert V
Egert V el 30 de Sept. de 2021
Comentada: Vinod el 5 de Oct. de 2021
Hi
Website where I was getting information with ThingHTTP now returns -1 when not using any parse string. Is thingspeak now blocked by the webpage? How can I get it working again?
  2 comentarios
Christopher Stapels
Christopher Stapels el 30 de Sept. de 2021
I would inspect the source at the target website. That is the most likely cause. Can you share the ThingHTTP content?
Marc Paradis
Marc Paradis el 1 de Oct. de 2021
Me too ihave this problems, so i'm answering here's the details.
URL: https://api.quotable.io/random
Method: GET
Content-Type: application/json
HTTP Version: 1.1
host : api.quotable.io
even if i dont need to parse the value, it returns -1 :(
have a look.
thanks.
Marc.

Iniciar sesión para comentar.

Iniciar sesión para responder a esta pregunta.

Respuestas (1)

Vinod
Vinod el 4 de Oct. de 2021
Editada: Vinod el 4 de Oct. de 2021
It appears that the certificate chain of the website may have an expired or invalid certificate or it is not from a recognized certification authority. You will have to change the request from HTTPS to HTTP so the certificate is not verified by the ThingSpeak servers. Change URL in ThingHTTP from https://<YOURSITE> to http://<YOURSITE>. For more details, see here: https://www.securityweek.com/expired-lets-encrypt-root-certificate-causes-problems-many-companies
NOTE: Using HTTP instead of HTTPS is strongly not-recommended. Ideally the maintainer of the website in question is able to update their site certificate chain.
  2 comentarios
Egert V
Egert V el 5 de Oct. de 2021
Editada: Egert V el 5 de Oct. de 2021
Hi, thank you for the answer
For me it will not fix the problem. I will now get a response:
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>301 Moved Permanently</title> </head><body>
But as this is not really Thingspeak issue, then I will figure out something else. Parsing the page directly for example.
Vinod
Vinod el 5 de Oct. de 2021
@Egert V: You could use a MATLAB Analysis app on ThingSpeak with the WEBREAD and URLFILTER functions to parse the data. Give it a shot!

Iniciar sesión para comentar.

Comunidades de usuarios

Más respuestas en  ThingSpeak Community

Categorías

Más información sobre Read Data from Channel en Help Center y File Exchange.

Etiquetas

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by