Jackson JsonSchemaGenerator - How to get schema as string
I'm sure I'm just tight here.
I want to take an object schema and turn it into a string representation.
Same, but this returns null:
JsonSchemaGenerator generator = new JsonSchemaGenerator(MAPPER);
JsonSchema jsonSchema = generator.generateSchema(Get.class);
System.out.println("jsonSchema: " + jsonSchema.asObjectSchema().asStringSchema());
This is used by com.fasterxml.jackson.module.jsonSchema.JsonSchema found at https://github.com/FasterXML/jackson-module-jsonSchema/wiki
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2 answers
you can achieve this by running:
ObjectMapper mapper = new ObjectMapper();
SchemaFactoryWrapper visitor = new SchemaFactoryWrapper();
mapper.acceptJsonFormatVisitor(mapper.constructType(YOURCLASS.class), visitor);
JsonSchema jsonSchema = visitor.finalSchema();
String schemaString = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(jsonSchema);
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