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Hello, I am trying to transfer data by using program "Typical Write Example" running on ESP8266 NodeMCU. I didn't change he program , only added my Network name, network password, channel number and APIWriteKey. The Program is running on ESP8266 or ESP32. In both cases the response is always "400". Don't have more detailed information. Any idea on the cause ? Router problem , Arduino IDE 1.8.10 or ? Any comment is appreciated. Kind regards

As the title says Im trying to upload data with HTTP GET method and I followed the api documentation properly This is a snipper of my code where the data is being sent as well as the output I receive IMG It works when in browser but not when I do it through my board

I am attempting to use webread to download data from a REST web service that uses authentication. I am having problems and I think it is with the authentication. I can put the following into a web browser and get the data I want to appear in the browser: http://dummyserver/AQUARIUS/Publish/AquariusPublishRestService.svc/GetAuthToken?user=dummyname&encPwd=dummypassword I get a successful token like: 9fab1c9fee2a18bd6c2b889595d61131. Then I put the following into the web browser http://dummyserver/AQUARIUS/Publish/AquariusPublishRestService.svc/GetTimeSeriesData?dataId=QRiv.Derived-Working-DayMean@13235000%20S%20Fk%20Payette%20Riv%20at%20Lowman,%20ID&view=Public&queryFrom=2014-09-01%2000%3A00%3A00&queryTo=2014-09-02%2000%3A00%3A00&tok=9fab1c9fee2a18bd6c2b889595d61131 This gives me the data that I expect (a text file in the web browser). I turn this into Matlab code: usr = 'dummyname'; pwd = 'dummypassword'; url = 'http://dummyserver/AQUARIUS/Publish/AquariusPublishRestService.svc'; dat = '/GetTimeSeriesData?dataId=QRiv.Derived-Working-DayMean@13235000%20S%20Fk%20Payette%20Riv%20at%20Lowman,%20ID&view=Public&queryFrom=2014-09-01&queryTo=2014-09-02'; urltok = [ url, '/GetAuthToken?user=', usr, '&encPwd=', pwd ]; tok = webread( urltok ) tok = 8cef334c4b48f452634fdf3ee8208a4b % this works urldat = [ url, dat, '&tok=', tok ] data = webread([ urldat ]) % *this does not work* And I get the following response from the last webread() Error using readContentFromWebService (line 46) The server returned the message: "Bad Request" for URL, 'http://dummyserver/AQUARIUS/Publish/AquariusPublishRestService.svc/GetTimeSeriesData?dataId=QRiv.Derived-Working-DayMean%4013235000%20S%20Fk%20Payette%20Riv%20at%20Lowman%2C%20ID&view=Public&queryFrom=2014-09-01&queryTo=2014-09-02&tok=8cef334c4b48f452634fdf3ee8208a4b' (with HTTP response code 400). Error in webread (line 122) [varargout{1:nargout}] = readContentFromWebService(connection, options); Error in get_aquarius_test (line 51) data = webread([ urldat ]) From what I have read the 400 error code means that the request was malformed. However, I can't figure out what is malformed about the request. Can anyone tell me how to check what Matlab is actually sending to the server so I can try to determine how it is malformed? Or can you give me other advise on how to solve this. Other information: The Aquarius server is internal to my company and is on our own computers. I have tried different web browsers and they all seem to work fine, just Matlab has the problem. The Aquarius server stores hydrologic information and is from http://aquaticinformatics.com/.