@awesomeniko/kafka-trail/dist/libs/schema/adapters/zod-adapter.js

A Node.js library for managing message queue with Kafka

import { KTSchemaValidationError } from "../schema-errors.js";
const deriveSchemaMeta = (schemaMeta) => {
    if (!schemaMeta || typeof schemaMeta !== "object") {
        return {};
    }
    const metaRecord = schemaMeta;
    const schemaNameCandidate = metaRecord.schemaName ?? metaRecord.id ?? metaRecord.title;
    const schemaVersionCandidate = metaRecord.schemaVersion ?? metaRecord.version;
    const schemaIdCandidate = metaRecord.schemaId ?? metaRecord.id;
    const result = {};
    if (typeof schemaNameCandidate === "string") {
        result.schemaName = schemaNameCandidate;
    }
    if (typeof schemaVersionCandidate === "string") {
        result.schemaVersion = schemaVersionCandidate;
    }
    if (typeof schemaIdCandidate === "string") {
        result.schemaId = schemaIdCandidate;
    }
    return result;
};
export const createZodCodec = (schema, options) => {
    const parseWithSchema = (value, source) => {
        const result = schema.safeParse(value);
        if (!result.success) {
            throw new KTSchemaValidationError({
                message: `Zod validation failed during ${source}: ${result.error.message}`,
                source,
                details: result.error,
            });
        }
        return result.data;
    };
    const codec = {
        encode(data) {
            return JSON.stringify(parseWithSchema(data, 'encode'));
        },
        decode(data) {
            const stringData = Buffer.isBuffer(data)
                ? data.toString()
                : data;
            const parsed = JSON.parse(stringData);
            return parseWithSchema(parsed, 'decode');
        },
        validate(data) {
            parseWithSchema(data, 'validate');
        },
    };
    const schemaDerivedMeta = deriveSchemaMeta(schema.meta?.());
    codec.schemaMeta = {
        provider: "zod",
        ...schemaDerivedMeta,
        ...options?.schemaMeta,
    };
    return codec;
};
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