Calling async method from X++

There is a trend in the .NET world to make time-consuming calls asynchronous, to prevent applications from getting blocked when waiting for a response from a web service and things like that. Many existing APIs were enhanced with asynchronous variants of previously synchronous actions and some newer APIs offer only asynchronous methods. So… how can …

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Discovery of JSON-based custom services in AX 7

If you download AX integration samples from GitHub, you’ll see (in JsonConsoleApplication project) that you can call JSON-based custom services by code like this: var request = HttpWebRequest.Create(ClientConfiguration.Default.UriString + "api/services/UserSessionService/AifUserSessionService/GetUserSessionInfo"); request.Headers[OAuthHelper.OAuthHeader] = OAuthHelper.GetAuthenticationHeader(); request.Method = "POST"; request.GetResponse(); It will call the operation and return its return value as JSON: { "$id":"1", "AOSLocaleName":"en-US", "AXLanguage":"EN-US", "Company":"DAT", "CompanyTimeZone":58, …

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Catching exceptions in AX 7

In this blog post, I briefly recapitulate how to throw and catch exceptions in X++ and introduce a new way of handling CLR exceptions in AX 7. X++ exceptions When you want to throw an exception in X++, you typically do it by something like this: throw error("It’s broken!"); It’s a functional equivalent of adding a …

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IoC containers for extensibility

Dynamics 365 for Operations (AX 7) tries to get rid of the ugly concept of “customizations”, when developers directly change somebody else’s code, which has a plenty of negative consequences. Most importantly, installing a new version isn’t easy, because it requires dealing with conflicts in code. There are several ways how to make a class …

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Custom date and time format

I was extending a customization of Dynamics AX when I ran into the following piece of code. It formats the current date and time to something like 20150525_0042. str dateValue, dateFormat;   dateValue = date2str( systemDateGet(), 321, DateDay::Digits2, DateSeparator::None, DateMonth::Digits2, DateSeparator::None, DateYear::Digits4, DateFlags::FormatAll);   dateFormat = strFmt( "%1%2%3", dateValue, ‘_’, subStr( strRem(time2Str(timeNow(), TimeSeparator::Space, TimeFormat::Auto), ‘ …

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