![]() ![]() What we have covered so far is enough to handle JSON serialization in most cases.īut Freezed is a powerful package and we can do cool things such as: Advanced JSON Serialization features with Freezed If a annotation is specified, its value will be used if the corresponding JSON key-value pair is missing. ![]() Non-nullable arguments need either a required keyword or a default value. In this case, the keys in the JSON response use a snake_case naming convention, and we can use the annotation to tell Freezed which keys are mapped to which properties.Īnd we can use the annotation if we want to specify a default value for a given non-nullable property. To keep things in line with the previous article, we'll reuse the same sample class TMDBMovieBasic with _$TMDBMovieBasic However, freezed is more powerful and can handle complex use-cases with a simple API. You can generate the JSON parsing code with json_serializable alone (without freezed). Sounds complicated? Don't worry: As long as you import all the required packages, it will be fine. build_runner: this is a standalone build package that can generate Dart files for us.freezed_annotation: defines the annotations used by freezed.freezed: a powerful code generator that can handle complex use-cases with a simple API. ![]()
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