How to construct complext web URL using matlab.net.http

Hi,

I could could construct this url using matlab.net.http per below. Is there a way to view actual syntax construct sent to http?

http://lon-wksd-v094:3000/rpc/aviation_grounded/?as_at_date=2023-10-01T00%3A00%3A00

apiURL   = 'http://lon-wksd-v094:3000/rpc/aviation_grounded';
asAtDate = '2023-10-01T00:00:00';
request= matlab.net.http.RequestMessage;
request.Body      = matlab.net.http.MessageBody;
request.Body.Data = struct('as_at_date', asAtDate); 
request.Method  = 'POST';
uriObj          = matlab.net.URI( apiURL);
[ response, completedReq, history] = send( request, uriObj);

How can i construct something like?

http://lon-wksd-v094:3000/rpc/aviation_grounded/?and=(as_at_date=2023-10-01T00%3A00%3A00,airport_country_name=in.(Israel,Ukraine)

Thanks

Answer 1

[Hassaan]

% Base URL
apiURL = 'https://catfact.ninja/fact'; % Change it as per your requirements

% Create a URI object from the base URL
uri = matlab.net.URI(apiURL);

% Define the query parameters
asAtDate = '2023-10-01T00:00:00';
airportCountryNames = ["Israel", "Ukraine"];  % Array of country names

% Join the country names with a comma for the query string
countryNamesJoined = strjoin(airportCountryNames, ',');

% Create a QueryParameter array
queryParams = [...
    matlab.net.QueryParameter('as_at_date', asAtDate), ...
    matlab.net.QueryParameter('airport_country_name', countryNamesJoined)];

% Add the query parameters to the URI
uri.Query = queryParams;

% Convert the URI object to a character vector (string) to get the full URL
urlString = char(uri);

% Display the constructed URL
disp(urlString);

https://catfact.ninja/fact?as_at_date=2023-10-01T00:00:00&airport_country_name=Israel,Ukraine

% Prepare the HTTP request
request = matlab.net.http.RequestMessage;
request.Method = matlab.net.http.RequestMethod.GET;  % Set the method to GET

% Define the content type as JSON
contentTypeField = matlab.net.http.field.ContentTypeField('application/json');
request.Header = [request.Header; contentTypeField];

% Send the request
uriObj = matlab.net.URI(uri);
response = send(request, uriObj);

% Display the response status line and body
disp(response.StatusLine);

  StatusLine with properties:

    ProtocolVersion: "HTTP/1.1"
         StatusCode: OK
       ReasonPhrase: "OK"

disp(response.Body.Data);

      fact: 'The normal body temperature of a cat is between 100.5 ° and 102.5 °F. A cat is sick if its temperature goes below 100 ° or above 103 °F.'
    length: 136

Please ensure that this matches the API specification you're working with. If the server expects a JSON payload in the body of the POST request, you would need to construct a JSON body rather than using query parameters. Adjust the contentTypeField and the request body as necessary based on the server's requirements.

Note:

• I used GET request for demo URL 'apiURL = 'https://catfact.ninja/fact'; % Change it as per your requirements'

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