How to generate Dart code from json structure












0














The code_build (https://pub.dartlang.org/packages/code_builde) package provides a solution to generate classes and constructors, field and methods for that class.



My ultimate goal is to generate Flutter (https://flutter.io) Widgets based on the json structure given, but I don't know how to do this with the code_build or another package.



So help would be appreciated!










share|improve this question



























    0














    The code_build (https://pub.dartlang.org/packages/code_builde) package provides a solution to generate classes and constructors, field and methods for that class.



    My ultimate goal is to generate Flutter (https://flutter.io) Widgets based on the json structure given, but I don't know how to do this with the code_build or another package.



    So help would be appreciated!










    share|improve this question

























      0












      0








      0







      The code_build (https://pub.dartlang.org/packages/code_builde) package provides a solution to generate classes and constructors, field and methods for that class.



      My ultimate goal is to generate Flutter (https://flutter.io) Widgets based on the json structure given, but I don't know how to do this with the code_build or another package.



      So help would be appreciated!










      share|improve this question













      The code_build (https://pub.dartlang.org/packages/code_builde) package provides a solution to generate classes and constructors, field and methods for that class.



      My ultimate goal is to generate Flutter (https://flutter.io) Widgets based on the json structure given, but I don't know how to do this with the code_build or another package.



      So help would be appreciated!







      dart flutter code-generation






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 12 '18 at 21:57









      Theo BouwmanTheo Bouwman

      392518




      392518
























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          The general way to write something which outputs Dart code is to wrap up the functionality in a Builder and to perform the code generation with build_runner



          At a high level you'd write a Builder that:




          • Has buildExtensions of {".json": [".dart"]}.

          • Reads in the buildStep.inputId asset and parses the json.

          • Uses code_builder to build up a String and then write it to the output asset.


          Then you'd configure the builder in build.yaml. And either apply it manually to your package, or if you'd like to publish it as a utility it can apply to dependencies.



          Your package would have a dev_dependency on build_runner and then you can execute builds with flutter packages run build_runner build.



          There are more docs at https://github.com/dart-lang/build/tree/master/docs



          You can see an example of a package which does something similar - starts with yaml files and outputs Dart files using code_builder at https://github.com/natebosch/message_builder






          share|improve this answer





















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            1 Answer
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            1 Answer
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            active

            oldest

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            3














            The general way to write something which outputs Dart code is to wrap up the functionality in a Builder and to perform the code generation with build_runner



            At a high level you'd write a Builder that:




            • Has buildExtensions of {".json": [".dart"]}.

            • Reads in the buildStep.inputId asset and parses the json.

            • Uses code_builder to build up a String and then write it to the output asset.


            Then you'd configure the builder in build.yaml. And either apply it manually to your package, or if you'd like to publish it as a utility it can apply to dependencies.



            Your package would have a dev_dependency on build_runner and then you can execute builds with flutter packages run build_runner build.



            There are more docs at https://github.com/dart-lang/build/tree/master/docs



            You can see an example of a package which does something similar - starts with yaml files and outputs Dart files using code_builder at https://github.com/natebosch/message_builder






            share|improve this answer


























              3














              The general way to write something which outputs Dart code is to wrap up the functionality in a Builder and to perform the code generation with build_runner



              At a high level you'd write a Builder that:




              • Has buildExtensions of {".json": [".dart"]}.

              • Reads in the buildStep.inputId asset and parses the json.

              • Uses code_builder to build up a String and then write it to the output asset.


              Then you'd configure the builder in build.yaml. And either apply it manually to your package, or if you'd like to publish it as a utility it can apply to dependencies.



              Your package would have a dev_dependency on build_runner and then you can execute builds with flutter packages run build_runner build.



              There are more docs at https://github.com/dart-lang/build/tree/master/docs



              You can see an example of a package which does something similar - starts with yaml files and outputs Dart files using code_builder at https://github.com/natebosch/message_builder






              share|improve this answer
























                3












                3








                3






                The general way to write something which outputs Dart code is to wrap up the functionality in a Builder and to perform the code generation with build_runner



                At a high level you'd write a Builder that:




                • Has buildExtensions of {".json": [".dart"]}.

                • Reads in the buildStep.inputId asset and parses the json.

                • Uses code_builder to build up a String and then write it to the output asset.


                Then you'd configure the builder in build.yaml. And either apply it manually to your package, or if you'd like to publish it as a utility it can apply to dependencies.



                Your package would have a dev_dependency on build_runner and then you can execute builds with flutter packages run build_runner build.



                There are more docs at https://github.com/dart-lang/build/tree/master/docs



                You can see an example of a package which does something similar - starts with yaml files and outputs Dart files using code_builder at https://github.com/natebosch/message_builder






                share|improve this answer












                The general way to write something which outputs Dart code is to wrap up the functionality in a Builder and to perform the code generation with build_runner



                At a high level you'd write a Builder that:




                • Has buildExtensions of {".json": [".dart"]}.

                • Reads in the buildStep.inputId asset and parses the json.

                • Uses code_builder to build up a String and then write it to the output asset.


                Then you'd configure the builder in build.yaml. And either apply it manually to your package, or if you'd like to publish it as a utility it can apply to dependencies.



                Your package would have a dev_dependency on build_runner and then you can execute builds with flutter packages run build_runner build.



                There are more docs at https://github.com/dart-lang/build/tree/master/docs



                You can see an example of a package which does something similar - starts with yaml files and outputs Dart files using code_builder at https://github.com/natebosch/message_builder







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 13 '18 at 1:14









                Nate BoschNate Bosch

                78639




                78639






























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