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webread not working for JSON

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Leah on 28 Dec 2014
Commented: Leah on 30 Dec 2014
I can read from url's and api's just fine as long as the return format is not JSON. Some examples from matlab help that don't work for me
>> api = '';
url = [api 'country/cru/tas/year/USA'];
S = webread(url)
S =
Empty matrix: 0-by-1
But this works just fine:
fullURL = ['' ...
str = urlread(fullURL);
>> whos str
Name Size Bytes Class Attributes
str 1x82552 165104 char
Has anyone else had this issue? It use to work just fine for me a few months ago. I wonder if it is some internet setting issue.


Geoff Hayes
Geoff Hayes on 29 Dec 2014
Leah - looking at the example at webread, have you tried to include the options parameter? What happens when you try
options = weboptions('ContentType','text');
data = webread(url,options);
where url is what you have described in your question?
And, what happens if you navigate (in any web browser) to the URL Do you see the alternating year data from 1901 to 2011?
Leah on 30 Dec 2014
Thanks for your response Geoff. This magically started working and I haven't been able to reproduce the problem.

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