Newbie question regarding makewebrequest example

Former Member over 4 years ago

Hey!

I am sorry if this is a dumb question or anything. But i simply want to test out and use the method makewebrequest but cannot make it work. I constantly get responseCode -400 and data that is null. My code is following (Its based on the template given from eclipse):

function getInitialView() {
  		var url = "https://www.bing.com"; 
	
	    // this is the data that you want to send out
	    var params = {};
		
	  	var	options = {                                            
	  	 	:method => Communications.HTTP_REQUEST_METHOD_GET                                                   
	 	};
	
	   	// make the Communications.makeWebRequest() call to send data
	    Communications.makeWebRequest(url, params, options, method(:onResponse));
    	
    	//Template stuff
        //return [ new dataRetrieveView(), new dataRetrieveDelegate() ];
    }
    
    	function onResponse(responseCode, data)
	{
		System.println("in onReceive, responseCode=" + responseCode + ", data=" + data);
	}

I have tried using different content-type and responseType, but i keep getting -400...

So i tried not setting any of these as i read that "if the content type is not specified, it will default to "application/json" for GET" and that if responseType is not given the system will attempt parsing the response both as JSON, then as URL ENCODED.

How should i modify this example to not get responseCode -400 constantly? Can i not use bing as an example?

Please help me, i am confused and frustrated

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0 jim_m_58 over 4 years ago

INVALID_HTTP_BODY_IN_NETWORK_RESPONSE

-400

1.0.0

Response body data is invalid for the request type.

What do you see if you use "View HTTP Traffic" in the sim?

0 Former Member over 4 years ago in reply to jim_m_58

In the "view http traffic" i seem too get 200?

0 jim_m_58 over 4 years ago in reply to Former Member

You are looking for json data, and you're not getting json data from bing.com

Look at the web request sample in the SDK. Maybe try that url.

0 Former Member over 4 years ago in reply to jim_m_58

Ok, i basically changed my code a little to be identical to the example provided here:
https://developer.garmin.com/connect-iq/api-docs/Toybox/Communications.html#makeWebRequest-instance_function
So i use garmin.com instead of bing.com

function getInitialView() {
    	var url = "https://www.garmin.com";  
	
	    // this is the data that you want to send out
	    var params = {};
		
	  	var	options = {                                            
	  	 	:method => Communications.HTTP_REQUEST_METHOD_GET,
	  	 	:headers => {                                           // set headers
                   "Content-Type" => Communications.REQUEST_CONTENT_TYPE_URL_ENCODED},
                                                                   // set response type
           :responseType => Communications.HTTP_RESPONSE_CONTENT_TYPE_URL_ENCODED                                                   
	 	};
	
		var responseCallback = method(:onResponse);
	   	// make the Communications.makeWebRequest() call to send data
	    Communications.makeWebRequest(url, params, options, method(:onResponse));
    	
    	//Template stuff
        return [ new dataRetrieveView(), new dataRetrieveDelegate() ];
    }

The resulting responseCode is still -400.... I do not get this

The HTTP Traffic is now following:

Im very thankfull for u trying to help! :)

0 jim_m_58 over 4 years ago in reply to Former Member

Again, I doubt you'll get json data from garmin.com

Look at the webrequest sample in the SDK and try that.

0 Former Member over 4 years ago in reply to jim_m_58

Hey Jim!

Im sorry, maybe i am blind or something. But i cannot seem to find the samples...

I tried to look at file>import>existing projects, which u say it should be at: https://forums.garmin.com/developer/connect-iq/f/discussion/1873/sdk-samples

is there a place where i can download the samples or am i maybe just simply looking at the wrong place? I have a windows 10 if that is any info that can make u help me better.

0 jim_m_58 over 4 years ago in reply to Former Member

If you use eclipse, nder the Connect IQ menu, click on samples

On a windows machine the sdks are same places as devices. (for 3.2 and above)

So /users/(you)/appdata/roaming/garmin/connectiq/sdks/samples

0 Former Member over 4 years ago in reply to jim_m_58

Hey Jim!

I found the samples and looked at it. I have just one question regarding "Again, I doubt you'll get json data from garmin.com". Does that matter even though i specify that "Content-Type" => Communications.REQUEST_CONTENT_TYPE_URL_ENCODED. and :responseType => Communications.HTTP_RESPONSE_CONTENT_TYPE_URL_ENCODED? Can i not get any other data other than json data? Is it only with json data makeWebRequest() works with?

I can switch from GET to POST and change different content-type and responsetype and still get -400. Is the problem really that i just have to get json data from the url? Can i not get any other data other than json data from an url?

0 jim_m_58 over 4 years ago in reply to Former Member

What you need to do is tell the server to return the data in a json format if you are saying you want a json response. Not all sites have this option, but for example in one I use, I have this for params

param={
	"stationId" => station.toUpper(),
	"format"=>"json",
	"units" => UNITS,
	"apiKey" => APIKEY,
	"numericPrecision" => "decimal"			
}

You can use HTTP_RESPONSE_CONTENT_TYPE_TEXT_PLAIN if you want plain text, but for something like garmin.com, you get a huge response.

0 Former Member over 4 years ago in reply to jim_m_58

Hey sorry again for bombarding you with question. But i have tried with HTTP_RESPONSE_CONTENT_TYPE_TEXT_PLAIN, but i still get the same -400. Is it because of the response being to huge?