@kafkajs/confluent-schema-registry/dist/utils/readAVSC.js

ConfluentSchemaRegistry is a library that makes it easier to interact with the Confluent schema registry, it provides convenient methods to encode, decode and register new schemas using the Apache Avro serialization format.

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.readAVSC = readAVSC;
exports.readAVSCAsync = readAVSCAsync;
const fs_1 = __importDefault(require("fs"));
const util_1 = require("util");
const errors_1 = require("../errors");
const readFileAsync = (0, util_1.promisify)(fs_1.default.readFile);
const ENCODING = 'utf-8';
function isValidSchema(rawSchema) {
    return ('name' in rawSchema &&
        'type' in rawSchema &&
        rawSchema.type === 'record' &&
        'fields' in rawSchema);
}
function validatedSchema(path, rawSchema) {
    if (!isValidSchema(rawSchema)) {
        throw new errors_1.ConfluentSchemaRegistryInvalidSchemaError(`${path} is not recognized as a valid AVSC file (expecting valid top-level name, type and fields attributes)`);
    }
    return rawSchema;
}
function readAVSC(path) {
    const rawSchema = JSON.parse(fs_1.default.readFileSync(path, ENCODING));
    return validatedSchema(path, rawSchema);
}
async function readAVSCAsync(path) {
    const rawSchema = JSON.parse(await readFileAsync(path, ENCODING));
    return validatedSchema(path, rawSchema);
}
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