Using Typescript to send dates through an Ajax POST request

Question

Using Typescript to send dates through an Ajax POST request

I am currently working on developing an MVC web application in c# and implementing Typescript for the frontend. I have a controller method that receives a HttpPost request with a data model, which is automatically generated as a Typescript class using typelite.

Within my request data model, there are datetime fields. However, when sending a request to the backend, these datetime fields are serialized into string format like "Sun+Dec+25+2016+11:29:33+GMT+0100+(ora+solare+Europa+occidentale)". I would prefer these fields to be serialized into UTC datetime strings.

The Typescript code used to send the request is as follows:

$.ajax({
        method: callingMethod,
        url: urlToCall,
        data: *dataValue,
        beforeSend: function () {
            self.BeforeAsyncAction();
        },
    })
    .done(callbackDone)
    .fail(callbackFail)
    .always(self.CompleteAsyncAction);
}

The dataValue class has the following interface:

export class FileServiceModel extends Gedoc.WebApplication.ServiceModels.BaseServiceModel {
    Allegato: Gedoc.WebApplication.ServiceModels.FileStreamServiceModel;
    Attributi: Gedoc.WebApplication.ServiceModels.AttributoServiceModel[];
    Descrizione: string;
    DimensioneByte: number;
    *DtIn: Date;
    *DtRegistrazione: Date;
    *DtUp: Date;
    Id: number;
    Tags: string;
    Titolo: string;
}

fields that need to be serialized into UTC datetime.

What is the best way to automatically serialize these fields?

Thank you and kind regards

javascript ajax datetime typescript

Answer 1

Answer №1

The Date object in javascript comes with a handy toUTCString method that allows you to convert dates to UTC format:

let d = new Date();
console.log(d); // Sun Dec 25 2016 13:36:02 GMT+0200 (IST)
console.log(d.toUTCString()); // Sun, 25 Dec 2016 11:36:02 GMT

If you need to normalize dates in your code, you can use a function like this:

function normalizeDate(data: FileServiceModel) {
    let copy = Object.assign({}, data);
    copy.DtIn = data.DtIn.toUTCString();
    copy.DtRegistrazione = data.DtRegistrazione.toUTCString();
    copy.DtUp = data.DtUp.toUTCString();

    return copy;
}

$.ajax({
        method: callingMethod,
        url: urlToCall,
        data: normalizeDate(dataValue),
        beforeSend: function () {
            self.BeforeAsyncAction();
        },
    })
        .done(callbackDone)
        .fail(callbackFail)
        .always(self.CompleteAsyncAction);
}

Answer 2

The Date object in javascript comes with a handy toUTCString method that allows you to convert dates to UTC format:

let d = new Date();
console.log(d); // Sun Dec 25 2016 13:36:02 GMT+0200 (IST)
console.log(d.toUTCString()); // Sun, 25 Dec 2016 11:36:02 GMT

If you need to normalize dates in your code, you can use a function like this:

function normalizeDate(data: FileServiceModel) {
    let copy = Object.assign({}, data);
    copy.DtIn = data.DtIn.toUTCString();
    copy.DtRegistrazione = data.DtRegistrazione.toUTCString();
    copy.DtUp = data.DtUp.toUTCString();

    return copy;
}

$.ajax({
        method: callingMethod,
        url: urlToCall,
        data: normalizeDate(dataValue),
        beforeSend: function () {
            self.BeforeAsyncAction();
        },
    })
        .done(callbackDone)
        .fail(callbackFail)
        .always(self.CompleteAsyncAction);
}

Using Typescript to send dates through an Ajax POST request

Answer №1

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