Invalid URL Error with valid URL

Hello, I am trying to extract data with the websave function from an api, with an url I am certain is valid and correct when I type it into a browser. However, MATLAB seem to not recognize the url as a valid one. The weird thing is that somehow it works when I remove the last part "&timeformat=%Y%m%d%H".

Here's a url: http://api.mesowest.net/v2/stations/timeseries?stid=knyc&start=201001010000&end=201512312359&token=1234567890&vars=air_temp,relative_humidity&timeformat=%Y%m%d%H

And there's the simple code that I'm using to extract the numbers:

clc

clear all

api = 'http://api.mesowest.net/v2/stations/timeseries?stid=knyc&start=201001010000&end=201512312359&token=1234567890&vars=air_temp,relative_humidity&timeformat=%Y%m%d%H'; filename = 'KNYC.txt'; options = weboptions('Timeout',Inf); outfilename = websave(filename,api,options);

Thanks in advance!

Yilan

Answer 1

[Walter Roberson]

You need to percent encode your percent symbols. Change the % to %25 in each location

[Janice Sanderson]

It totally worked!! Thank you so much you have no idea how grateful I am!!

Yilan