elastic-apm-node/lib/instrumentation/template-shared.js

The official Elastic APM agent for Node.js

/*
 * Copyright Elasticsearch B.V. and other contributors where applicable.
 * Licensed under the BSD 2-Clause License; you may not use this file except in
 * compliance with the BSD 2-Clause License.
 */

'use strict';

exports.wrapCompile = function (agent, moduleName) {
  function wrapTemplate(original) {
    return function wrappedTemplate(data) {
      var span = agent.startSpan(moduleName, 'template', moduleName, 'render');
      var id = span && span.transaction.id;

      agent.logger.debug('intercepted call to %s render %o', moduleName, {
        id,
        data,
      });

      var ret = original.apply(this, arguments);
      if (span) span.end();

      return ret;
    };
  }

  return function wrappedCompile(original) {
    return function wrappedCompile(input) {
      var span = agent.startSpan(moduleName, 'template', moduleName, 'compile');
      var id = span && span.transaction.id;

      agent.logger.debug('intercepted call to %s compile %o', moduleName, {
        id,
        input,
      });

      var ret = original.apply(this, arguments);
      if (span) span.end();

      return typeof ret === 'function' ? wrapTemplate(ret) : ret;
    };
  };
};