@vizydrop/logger/lib/plugins/metadata.js

Vizydrop predefined logger based on winston v3

/*********************************************************************
 * © Copyright IBM Corp. 2026
 *********************************************************************/
function createMetadataPlugin(metadataConfig) {
    if (!metadataConfig.enabled) {
        return (params) => params;
    }

    if (!metadataConfig.getMetadata) {
        throw new Error(`getMetadata is required`);
    }

    if (typeof metadataConfig.getMetadata !== `function`) {
        throw new Error(`getMetadata should be a function`);
    }

    return (params) => {
        const metadata = metadataConfig.getMetadata();
        if (!metadata || typeof metadata !== `object`) {
            return params;
        }

        return [...params, metadata];
    };
}

module.exports = {createMetadataPlugin};