What is the process for validating JSON with an Avro schema in Node.js that can provide a list of errors specifying the data errors that occurred?

edit

1. Install the "avsc" package in Node.js using npm:

npm install avsc

1. Define your Avro schema in a separate file, including any necessary types or fields. For example, a simple schema for a person might look like this:

{
  "type": "record",
  "name": "Person",
  "fields": [
    { "name": "name", "type": "string" },
    { "name": "age", "type": "int" }
  ]
}

1. In your Node.js application, load both the Avro schema and the JSON data you want to validate:

var avsc = require('avsc');
var personSchema = avsc.parse(fs.readFileSync('person.avsc'));
var jsonData = JSON.parse(fs.readFileSync('person.json'));

1. Use the Avro schema to create a new validator object:

var validator = personSchema.createValidator();

1. Validate your JSON data using the validator object:

var valid = validator(jsonData);

1. If any errors occurred during validation, the "valid" variable will be false, and the "validator.errors" property will contain an array of error messages. For example:

if (!valid) {
  console.log('Validation errors:');
  console.log(validator.errors);
} else {
  console.log('Data is valid!');
}

This will output a list of any errors that occurred during validation, including information about the field or type that caused the error.