[FUME TO FHIR] Advanced JSONata Operations ($merge, $exists, $zip, $function...) Explained
[FUME TO FHIR] 22 JSONata進階操作($merge, $exists, $zip, $function...) - iT 邦幫忙
Summary
This article explains advanced operations in JSONata for the data transformation tool FUME. It focuses on functions like $keys(), $lookup() (object manipulation), and advanced features such as $merge(), $map(), and $zip(). These techniques allow for more flexible and efficient structuring of input data and mapping to FHIR resources.
Details
This article introduces advanced JSONata techniques used when transforming JSON data into FHIR format using the tool FUME. The focus is on complex operations designed to simplify structured input data, such as handling sequence numbering or value set mappings. The key functions covered include $keys() (retrieving a list of keys in an object), $lookup() (getting an array of values for specified keys), and $spread() (separating all key-value pairs into individual elements). These are crucial for solving structural data challenges beyond simple conversion. Furthermore, the article details the use of $merge(), which is presented as an advanced method for combining multiple FHIR resource descriptions while managing attribute exclusivity. Functions like $map() and $zip() are also covered, demonstrating their utility in array element transformation and matrix transposition, respectively. The author emphasizes that these advanced operations, though sometimes outside FUME's official documentation, are highly useful for solving practical problems in the field. The approach prioritizes user-friendliness—simplifying input data for clinical staff—over mere conversion speed, highlighting a focus on real-world usability in healthcare IT.
Original content copyright by respective publishers