mongoose-query-logger/dist/mongoose-query-logger.esm.js

   ![license](https://badgen.net/npm/license/mongoos

import chalk from 'chalk';

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
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function _asyncToGenerator(fn) {
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function _extends() {
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  return _extends.apply(this, arguments);
}

function createCommonjsModule(fn, module) {
	return module = { exports: {} }, fn(module, module.exports), module.exports;
}

var runtime_1 = createCommonjsModule(function (module) {
/**
 * Copyright (c) 2014-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

var runtime = (function (exports) {

  var Op = Object.prototype;
  var hasOwn = Op.hasOwnProperty;
  var undefined$1; // More compressible than void 0.
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  function wrap(innerFn, outerFn, self, tryLocsList) {
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    var context = new Context(tryLocsList || []);

    // The ._invoke method unifies the implementations of the .next,
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    generator._invoke = makeInvokeMethod(innerFn, self, context);

    return generator;
  }
  exports.wrap = wrap;

  // Try/catch helper to minimize deoptimizations. Returns a completion
  // record like context.tryEntries[i].completion. This interface could
  // have been (and was previously) designed to take a closure to be
  // invoked without arguments, but in all the cases we care about we
  // already have an existing method we want to call, so there's no need
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  // in every case, so we don't have to touch the arguments object. The
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  function tryCatch(fn, obj, arg) {
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  function AsyncIterator(generator, PromiseImpl) {
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        // If enqueue has been called before, then we want to wait until
        // all previous Promises have been resolved before calling invoke,
        // so that results are always delivered in the correct order. If
        // enqueue has not been called before, then it is important to
        // call invoke immediately, without waiting on a callback to fire,
        // so that the async generator function has the opportunity to do
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        // is why the Promise constructor synchronously invokes its
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        // important to get this right, even though it requires care.
        previousPromise ? previousPromise.then(
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          // Avoid propagating failures to Promises returned by later
          // invocations of the iterator.
          callInvokeWithMethodAndArg
        ) : callInvokeWithMethodAndArg();
    }

    // Define the unified helper method that is used to implement .next,
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    this._invoke = enqueue;
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  AsyncIterator.prototype[asyncIteratorSymbol] = function () {
    return this;
  };
  exports.AsyncIterator = AsyncIterator;

  // Note that simple async functions are implemented on top of
  // AsyncIterator objects; they just return a Promise for the value of
  // the final result produced by the iterator.
  exports.async = function(innerFn, outerFn, self, tryLocsList, PromiseImpl) {
    if (PromiseImpl === void 0) PromiseImpl = Promise;

    var iter = new AsyncIterator(
      wrap(innerFn, outerFn, self, tryLocsList),
      PromiseImpl
    );

    return exports.isGeneratorFunction(outerFn)
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          maybeInvokeDelegate(delegate, context);

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        context.method = "throw";
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      return ContinueSentinel;
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      return ContinueSentinel;
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    if (info.done) {
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      // variable specified by delegate.resultName (see delegateYield).
      context[delegate.resultName] = info.value;

      // Resume execution at the desired location (see delegateYield).
      context.next = delegate.nextLoc;

      // If context.method was "throw" but the delegate handled the
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        context.arg = undefined$1;
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    } else {
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      return info;
    }

    // The delegate iterator is finished, so forget it and continue with
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    context.delegate = null;
    return ContinueSentinel;
  }

  // Define Generator.prototype.{next,throw,return} in terms of the
  // unified ._invoke helper method.
  defineIteratorMethods(Gp);

  define(Gp, toStringTagSymbol, "Generator");

  // A Generator should always return itself as the iterator object when the
  // @@iterator function is called on it. Some browsers' implementations of the
  // iterator prototype chain incorrectly implement this, causing the Generator
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  // See https://github.com/facebook/regenerator/issues/274 for more details.
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      entry.afterLoc = locs[3];
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    this.tryEntries.push(entry);
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  function resetTryEntry(entry) {
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    record.type = "normal";
    delete record.arg;
    entry.completion = record;
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  function Context(tryLocsList) {
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    // or a finally block) gives us a place to store values thrown from
    // locations where there is no enclosing try statement.
    this.tryEntries = [{ tryLoc: "root" }];
    tryLocsList.forEach(pushTryEntry, this);
    this.reset(true);
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  exports.keys = function(object) {
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    for (var key in object) {
      keys.push(key);
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    keys.reverse();

    // Rather than returning an object with a next method, we keep
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          return next;
        }
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      // To avoid creating an additional object, we just hang the .value
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      next.done = true;
      return next;
    };
  };

  function values(iterable) {
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      if (!isNaN(iterable.length)) {
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              next.done = false;
              return next;
            }
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          next.value = undefined$1;
          next.done = true;

          return next;
        };

        return next.next = next;
      }
    }

    // Return an iterator with no values.
    return { next: doneResult };
  }
  exports.values = values;

  function doneResult() {
    return { value: undefined$1, done: true };
  }

  Context.prototype = {
    constructor: Context,

    reset: function(skipTempReset) {
      this.prev = 0;
      this.next = 0;
      // Resetting context._sent for legacy support of Babel's
      // function.sent implementation.
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      this.done = false;
      this.delegate = null;

      this.method = "next";
      this.arg = undefined$1;

      this.tryEntries.forEach(resetTryEntry);

      if (!skipTempReset) {
        for (var name in this) {
          // Not sure about the optimal order of these conditions:
          if (name.charAt(0) === "t" &&
              hasOwn.call(this, name) &&
              !isNaN(+name.slice(1))) {
            this[name] = undefined$1;
          }
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    stop: function() {
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      return this.rval;
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    dispatchException: function(exception) {
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        record.arg = exception;
        context.next = loc;

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          context.arg = undefined$1;
        }

        return !! caught;
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      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
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        var record = entry.completion;

        if (entry.tryLoc === "root") {
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          // it, so set the completion value of the entire function to
          // throw the exception.
          return handle("end");
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          var hasFinally = hasOwn.call(entry, "finallyLoc");

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          } else if (hasCatch) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
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          } else {
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    abrupt: function(type, arg) {
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        if (entry.tryLoc <= this.prev &&
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            this.prev < entry.finallyLoc) {
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          break;
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      record.arg = arg;

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        this.next = finallyEntry.finallyLoc;
        return ContinueSentinel;
      }

      return this.complete(record);
    },

    complete: function(record, afterLoc) {
      if (record.type === "throw") {
        throw record.arg;
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      if (record.type === "break" ||
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        this.method = "return";
        this.next = "end";
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      }

      return ContinueSentinel;
    },

    finish: function(finallyLoc) {
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        var entry = this.tryEntries[i];
        if (entry.finallyLoc === finallyLoc) {
          this.complete(entry.completion, entry.afterLoc);
          resetTryEntry(entry);
          return ContinueSentinel;
        }
      }
    },

    "catch": function(tryLoc) {
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        var entry = this.tryEntries[i];
        if (entry.tryLoc === tryLoc) {
          var record = entry.completion;
          if (record.type === "throw") {
            var thrown = record.arg;
            resetTryEntry(entry);
          }
          return thrown;
        }
      }

      // The context.catch method must only be called with a location
      // argument that corresponds to a known catch block.
      throw new Error("illegal catch attempt");
    },

    delegateYield: function(iterable, resultName, nextLoc) {
      this.delegate = {
        iterator: values(iterable),
        resultName: resultName,
        nextLoc: nextLoc
      };

      if (this.method === "next") {
        // Deliberately forget the last sent value so that we don't
        // accidentally pass it on to the delegate.
        this.arg = undefined$1;
      }

      return ContinueSentinel;
    }
  };

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try {
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function isEmpty(obj) {
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function findQueryPlanners(stages) {
  var planners = [];
  stages.forEach(function (stage) {
    var plan = findPropRecursively(stage, 'queryPlanner');

    if (plan) {
      planners.push(plan);
    }
  });
  return planners;
}

var SERIALIZE_ARRAY_MAX_LEN = 100; // cut extremely long arrays in query serialization

function arrayMaxLengthReplacer(key, value) {
  if (Array.isArray(value) && value.length > SERIALIZE_ARRAY_MAX_LEN) {
    return value.slice(0, SERIALIZE_ARRAY_MAX_LEN).concat(value.length - SERIALIZE_ARRAY_MAX_LEN + " more items...");
  }

  return value;
}

function stringify(obj, space) {
  return JSON.stringify(obj, arrayMaxLengthReplacer, space);
}

var defaultQueryLogger = function defaultQueryLogger(_ref, logger) {
  var operation = _ref.operation,
      collectionName = _ref.collectionName,
      executionTimeMS = _ref.executionTimeMS,
      filter = _ref.filter,
      fields = _ref.fields,
      options = _ref.options,
      update = _ref.update,
      additionalLogProperties = _ref.additionalLogProperties;

  if (logger === void 0) {
    logger = console.log;
  }

  var logProperties = {};

  if (update) {
    logProperties.update = update;
  }

  if (additionalLogProperties) {
    logProperties = logProperties ? _extends({}, logProperties, {
      additionalLogProperties: additionalLogProperties
    }) : {
      additionalLogProperties: additionalLogProperties
    };
  }

  var otherArgs = [update, fields, options].map(function (x) {
    return x && !isEmpty(x) ? stringify(x) : null;
  }).filter(function (x) {
    return x;
  });
  var queryArgs = [stringify(filter)].concat(otherArgs).join(', ');
  var queryString = collectionName + "." + operation + "(" + queryArgs + ")";
  logger("mongoose: " + logTimeMS(executionTimeMS) + " ms " + queryString);
};
var defaultExplainLogger = function defaultExplainLogger(_ref2, logger) {
  var queryPlanners = _ref2.queryPlanners;

  if (logger === void 0) {
    logger = console.log;
  }

  queryPlanners.forEach(function (queryPlanner) {
    var stages = getWinningPlan(queryPlanner);
    var plan = logQueryExplain(stages);

    if (plan) {
      logger(plan);
    }
  });
};

function logTimeMS(executionTimeMS) {
  if (executionTimeMS < 100) {
    return chalk.green(executionTimeMS);
  }

  if (executionTimeMS < 1000) {
    return chalk.yellow(executionTimeMS);
  }

  return chalk.red(executionTimeMS);
}

function logQueryExplain(stages) {
  if (!stages || stages.length === 0) {
    return null;
  }

  var firstStage = stages[0];

  if (firstStage.stage === 'IDHACK') {
    return null; // ignore id lookups to avoid flooding
  }

  if (firstStage.stage === 'IXSCAN') {
    return chalk.green("IXSCAN " + stringify(firstStage.keyPattern));
  }

  if (firstStage.stage === 'COLLSCAN') {
    return chalk.red("COLLSCAN: " + stringify(stages, 4));
  }

  return chalk.yellow("Stages: " + stringify(stages, 4));
}

var TARGET_METHODS = ['count', 'countDocuments', 'estimatedDocumentCount', 'find', 'findOne', 'findOneAndUpdate', 'findOneAndRemove', 'findOneAndDelete', 'update', 'updateOne', 'updateMany', 'deleteOne', 'deleteMany', // 'remove', # note https://mongoosejs.com/docs/middleware.html#aggregate
// insertMany,
'aggregate']; // query middlewares

var QUERY_MIDDLEWARE = ['find', 'findOne', 'findOneAndUpdate', 'findOneAndRemove', 'findOneAndDelete', 'update', 'updateOne', 'updateMany', 'deleteOne', 'deleteMany']; // aggregate middleware is handled differently...

var AGGREGATE_MIDDLEWARE = ['aggregate']; // count middleware is handled differently...

var COUNT_MIDDLEWARE = ['count', 'countDocuments', 'estimatedDocumentCount']; // explain middleware enabled by default

var EXPLAIN_METHODS = ['find', 'findOne', // 'count',
// 'countDocuments',
// 'estimatedDocumentCount',
'aggregate'];

var DEFAULT_OPTIONS = {
  targetMethods: TARGET_METHODS,
  explainMethods: EXPLAIN_METHODS,
  queryLogger: defaultQueryLogger,
  explainLogger: defaultExplainLogger,
  explain: true,
  additionalLogProperties: false
};
var MongooseQueryLogger = /*#__PURE__*/function () {
  function MongooseQueryLogger(options) {
    if (options === void 0) {
      options = {};
    }

    this.options = _extends({}, DEFAULT_OPTIONS, options);
  }

  var _proto = MongooseQueryLogger.prototype;

  _proto.setQueryMethods = function setQueryMethods(_temp) {
    var _ref = _temp === void 0 ? {} : _temp,
        targetMethods = _ref.targetMethods,
        explainMethods = _ref.explainMethods;

    if (targetMethods) {
      this.options.targetMethods = targetMethods;
    }

    if (explainMethods) {
      this.options.explainMethods = explainMethods;
    }

    return this;
  };

  _proto.setExplain = function setExplain(explain) {
    if (explain === void 0) {
      explain = false;
    }

    this.options.explain = explain;
    return this;
  };

  _proto.setAdditionalLogProperties = function setAdditionalLogProperties(logAdditionalProperties) {
    if (logAdditionalProperties === void 0) {
      logAdditionalProperties = false;
    }

    this.options.additionalLogProperties = logAdditionalProperties;
    return this;
  };

  _proto.setQueryLogger = function setQueryLogger(queryLogger) {
    this.options.queryLogger = queryLogger;
    return this;
  };

  _proto.setExplainLogger = function setExplainLogger(explainLogger) {
    this.options.explainLogger = explainLogger;
    return this;
  };

  _proto.getPreQueryHook = function getPreQueryHook() {
    return function () {
      this.__startTime = Date.now();
    };
  };

  _proto.getPostQueryHook = function getPostQueryHook() {
    var instance = this;
    return function () {
      try {
        assert(this.__startTime !== null, 'startTime was null');
        assert(this._collection, 'no this._collection');
        var baseArgs = {
          operation: this.op,
          collectionName: this._collection.collectionName,
          executionTimeMS: Date.now() - this.__startTime,
          filter: this._conditions,
          fields: this._fields,
          options: _extends({}, this._options, this.options),
          update: this._update,
          additionalLogProperties: this.__additionalProperties
        };

        if (instance.options.explain && instance.options.explainMethods.includes(this.op)) {
          // execute the same query but with explain: true
          this._collection[this.op](this._conditions, _extends({
            explain: true
          }, this.options), function (error, result) {
            assert(!error && !!result, 'error running explain');

            if (!Array.isArray(result)) {
              result = [result];
            }

            var plans = findQueryPlanners(result);
            assert(plans.length !== 0, 'no plans found');
            instance.options.queryLogger(baseArgs);
            instance.options.explainLogger(_extends({}, baseArgs, {
              queryPlanners: plans
            }));
          });
        } else {
          instance.options.queryLogger(baseArgs);
        } // prevent this middleware from stopping the middleware chain

      } catch (e) {
        console.error('Error in post middleware: ', e);
      }
    };
  };

  _proto.getPostAggregateHook = function getPostAggregateHook() {
    var instance = this;
    return /*#__PURE__*/_asyncToGenerator( /*#__PURE__*/runtime_1.mark(function _callee() {
      var _this$options, baseArgs, result, plans;

      return runtime_1.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              _context.prev = 0;
              assert(this.__startTime !== null, 'startTime was null');
              assert(this._model, 'no this._model');
              baseArgs = {
                operation: 'aggregate',
                collectionName: this._model.collection.name,
                executionTimeMS: Date.now() - this.__startTime,
                filter: this._pipeline,
                fields: {},
                options: _extends({}, this._options, this.options),
                update: {},
                additionalLogProperties: this.__additionalProperties
              };

              if (!(instance.options.explain && instance.options.explainMethods.includes('aggregate') && !((_this$options = this.options) == null ? void 0 : _this$options.explain))) {
                _context.next = 15;
                break;
              }

              _context.next = 7;
              return this._model.collection.collection.aggregate(this._pipeline, _extends({}, this.options, {
                explain: true
              })).toArray();

            case 7:
              result = _context.sent;
              assert(Array.isArray(result) && result.length > 0, 'no aggregate explain');
              plans = findQueryPlanners(result);
              assert(plans.length !== 0, 'no plans found');
              instance.options.queryLogger(baseArgs);
              instance.options.explainLogger(_extends({}, baseArgs, {
                queryPlanners: plans
              }));
              _context.next = 16;
              break;

            case 15:
              instance.options.queryLogger(baseArgs);

            case 16:
              _context.next = 21;
              break;

            case 18:
              _context.prev = 18;
              _context.t0 = _context["catch"](0);
              console.error('Error in post middleware: ', _context.t0);

            case 21:
            case "end":
              return _context.stop();
          }
        }
      }, _callee, this, [[0, 18]]);
    }));
  };

  _proto.getPlugin = function getPlugin() {
    var instance = this;
    return function (schema) {
      // expose a method to log additional information
      // eg: User.find().additionalLogProperties('something')
      if (instance.options.additionalLogProperties) {
        schema.query.additionalLogProperties = function (additionalProperties) {
          this.__additionalProperties = additionalProperties;
          return this;
        };
      } // hook into query middlewares


      instance.options.targetMethods.filter(function (method) {
        return QUERY_MIDDLEWARE.includes(method);
      }).forEach(function (method) {
        schema.pre(method, instance.getPreQueryHook()); // @ts-ignore // TODO: FIX

        schema.post(method, instance.getPostQueryHook());
      }); // hook into aggregate

      instance.options.targetMethods.filter(function (method) {
        return AGGREGATE_MIDDLEWARE.includes(method);
      }).forEach(function (method) {
        schema.pre(method, instance.getPreQueryHook()); // @ts-ignore // TODO: FIX

        schema.post(method, instance.getPostAggregateHook());
      }); // hook into counts

      instance.options.targetMethods.filter(function (method) {
        return COUNT_MIDDLEWARE.includes(method);
      }).forEach(function (method) {
        schema.pre(method, instance.getPreQueryHook()); // @ts-ignore // TODO: FIX

        schema.post(method, instance.getPostQueryHook());
      });
    };
  };

  return MongooseQueryLogger;
}();

export { MongooseQueryLogger };
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