AdrianStrugala
Convert JSON directly to Avro
Discussed in https://github.com/AdrianStrugala/AvroConvert/discussions/36
Originally posted by vivekkwatra April 7, 2021 Is there any sample to convert JSON string into Avro Generic Record for C#?
FYI similar functionality available in Java https://github.com/allegro/json-avro-converter/blob/master/converter/src/main/java/tech/allegro/schema/json2avro/converter/JsonAvroConverter.java
The goal is introduce new AvroConvert feature:
var avro = AvroConvert.Json2Avro(string json);
Making this method generic, and providing T as type makes the implementation simple. In the case, if the generic parameter is not provided it is hard to determine the parent object.
As example json:
{"name":"red","favorite_number":2137,"favorite_color":"blue"}
does not contain information about the parent class, only fields
Most of the work is ready on branch: https://github.com/AdrianStrugala/AvroConvert/tree/feature/Json2Avro.
The only obstacle that is left is: how to distinguish between JSON Dictionary and Object representation. They are both serialized as an array of key-value pairs.
Every key-value pair cannot be directly converted to Avro objects, as they may contain non-string keys (which is not allowed for Avro fields names)
The implementation of Json2Avro feature is done: #84 . There is single exception: Dictionaries are not supported as for dynamic Json2Avro invocation.