in packages/core/lib/segments/attributes/subsegment.js [168:194]
Subsegment.prototype.addMetadata = function(key, value, namespace) {
if (typeof key !== 'string') {
logger.getLogger().error('Failed to add metadata key: ' + key + ' value: ' + value + ' to subsegment ' +
this.name + '. Key must be of type string.');
return;
}
if (namespace && typeof namespace !== 'string') {
logger.getLogger().error('Failed to add metadata key: ' + key + ' value: ' + value + ' to subsegment ' +
this.name + '. Namespace must be of type string.');
return;
}
var ns = namespace || 'default';
if (!this.metadata) {
this.metadata = {};
}
if (!this.metadata[ns]) {
this.metadata[ns] = {};
}
if (ns !== '__proto__') {
this.metadata[ns][key] = value !== null && value !== undefined ? value : '';
}
};