Loading JSON data into datasets is pretty straightforward using LoadFromFile or LoadFromStream. FireDAC provides these methods as part of its TFDDataset descendants. I have published several videos showing how easy it is to store generate JSON data with FireDAC and consuming it in a client application be this client application a web application or a VCL desktop application.
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JSON has become the common format to store structured information in text files. Further, web services tend to return JSON these days. XML seems to have lost the battle as it generates too much meta-information nobody needs. In addition, developers hardly need the validation of XML documents which is not possible to implement using JSON.
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I have expressed this before, but Delphi is and will hopefully always be the number one programming language for database-driven applications. The architecture that has been there since Delphi 1 is still standing strong. Of course, there has been need for change to the database drivers, due to technological advances.
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Data access has always been the number one feature that distinguished Delphi from another development environments. Still, in recent years there has been some criticism that Delphi has not kept up. Since the integration of AnyDAC as FireDAC a few years ago, the situation has changed again.
FireDAC is one of the best data-access frameworks and it has become part of Delphi.
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