ajax and connection to mvc .net

Question

I need to access some c# code from javascript in MVC ,NET (not blazor). I have the below. This is very specific to .NET and MVC stack and not a generic ajax question like another one in stack overfow. I get no error message it just continues to the next statement after the ajax call. There could be 2 possible issues i think. My url: '/Home/CreatePostcodeFromCoordinates', is wrong. Or my C# assembly is not part of the assembly? or something similar. I am not that experienced with Web techs, I come from a DB background but can't be that difficult to get this link working right? Can't see anything else wrong. Also does the return value from C# need to be some special format or a string (as per now) is ok? this could be another reason? Thank you!

console.log("just before /Home/CreatePostcodeFromCoordinates");

$.ajax({
    type: "POST",
    url: '/Home/CreatePostcodeFromCoordinates',
    data: { param1: longitude, param2: latitude },
    success: function (response) {
        console.log('success');
        console.log(response);
    },
    error: function (error) { 
        console.error(error);
    }
});

$.ajax({
    type: "POST",
    url: '/Home/CreatePostcodeFromCoordinates',
    data: { param1: longitude, param2: latitude },
    success: function (response) {
        console.log('success');
        console.log(response);
    },
    error: function (error) { 
        console.error(error);
    }
});&nbsp;

panos2024b · Accepted Answer

It worked by this async: false,. However async: = false, is deprecated apparently soon and needs the new way which i will investigate and change in my code
C#

public string CreateCoordinatesFromPostcode(string postcode)
{
string result = "XXXXXX" // your logic
return result;
}
JavaScript

let result = '';
$.ajax({
type: "POST",
url: '/clib/CreateCoordinatesFromPostcode',
async: false,
data: { postcode: postcode },
success: function (response) {
result = response;
},
error: function (error) {
console.error(error);
}
});

console.log("just after /clib/createCoordinatesFromPostcode");

return result;

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ajax and connection to mvc .net

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