something is working
This commit is contained in:
quoije
+308
@@ -0,0 +1,308 @@
|
||||
"use strict";
|
||||
Object.defineProperty(exports, "__esModule", { value: true });
|
||||
exports.MongoClient = exports.ServerApiVersion = void 0;
|
||||
const bson_1 = require("./bson");
|
||||
const change_stream_1 = require("./change_stream");
|
||||
const connection_string_1 = require("./connection_string");
|
||||
const db_1 = require("./db");
|
||||
const error_1 = require("./error");
|
||||
const mongo_types_1 = require("./mongo_types");
|
||||
const connect_1 = require("./operations/connect");
|
||||
const promise_provider_1 = require("./promise_provider");
|
||||
const read_preference_1 = require("./read_preference");
|
||||
const server_selection_1 = require("./sdam/server_selection");
|
||||
const sessions_1 = require("./sessions");
|
||||
const utils_1 = require("./utils");
|
||||
/** @public */
|
||||
exports.ServerApiVersion = Object.freeze({
|
||||
v1: '1'
|
||||
});
|
||||
/** @internal */
|
||||
const kOptions = Symbol('options');
|
||||
/**
|
||||
* The **MongoClient** class is a class that allows for making Connections to MongoDB.
|
||||
* @public
|
||||
*
|
||||
* @remarks
|
||||
* The programmatically provided options take precedence over the URI options.
|
||||
*
|
||||
* @example
|
||||
* ```js
|
||||
* // Connect using a MongoClient instance
|
||||
* const MongoClient = require('mongodb').MongoClient;
|
||||
* const test = require('assert');
|
||||
* // Connection url
|
||||
* const url = 'mongodb://localhost:27017';
|
||||
* // Database Name
|
||||
* const dbName = 'test';
|
||||
* // Connect using MongoClient
|
||||
* const mongoClient = new MongoClient(url);
|
||||
* mongoClient.connect(function(err, client) {
|
||||
* const db = client.db(dbName);
|
||||
* client.close();
|
||||
* });
|
||||
* ```
|
||||
*
|
||||
* @example
|
||||
* ```js
|
||||
* // Connect using the MongoClient.connect static method
|
||||
* const MongoClient = require('mongodb').MongoClient;
|
||||
* const test = require('assert');
|
||||
* // Connection url
|
||||
* const url = 'mongodb://localhost:27017';
|
||||
* // Database Name
|
||||
* const dbName = 'test';
|
||||
* // Connect using MongoClient
|
||||
* MongoClient.connect(url, function(err, client) {
|
||||
* const db = client.db(dbName);
|
||||
* client.close();
|
||||
* });
|
||||
* ```
|
||||
*/
|
||||
class MongoClient extends mongo_types_1.TypedEventEmitter {
|
||||
constructor(url, options) {
|
||||
super();
|
||||
this[kOptions] = (0, connection_string_1.parseOptions)(url, this, options);
|
||||
// eslint-disable-next-line @typescript-eslint/no-this-alias
|
||||
const client = this;
|
||||
// The internal state
|
||||
this.s = {
|
||||
url,
|
||||
bsonOptions: (0, bson_1.resolveBSONOptions)(this[kOptions]),
|
||||
namespace: (0, utils_1.ns)('admin'),
|
||||
hasBeenClosed: false,
|
||||
sessionPool: new sessions_1.ServerSessionPool(this),
|
||||
activeSessions: new Set(),
|
||||
get options() {
|
||||
return client[kOptions];
|
||||
},
|
||||
get readConcern() {
|
||||
return client[kOptions].readConcern;
|
||||
},
|
||||
get writeConcern() {
|
||||
return client[kOptions].writeConcern;
|
||||
},
|
||||
get readPreference() {
|
||||
return client[kOptions].readPreference;
|
||||
},
|
||||
get logger() {
|
||||
return client[kOptions].logger;
|
||||
},
|
||||
get isMongoClient() {
|
||||
return true;
|
||||
}
|
||||
};
|
||||
}
|
||||
get options() {
|
||||
return Object.freeze({ ...this[kOptions] });
|
||||
}
|
||||
get serverApi() {
|
||||
return this[kOptions].serverApi && Object.freeze({ ...this[kOptions].serverApi });
|
||||
}
|
||||
/**
|
||||
* Intended for APM use only
|
||||
* @internal
|
||||
*/
|
||||
get monitorCommands() {
|
||||
return this[kOptions].monitorCommands;
|
||||
}
|
||||
set monitorCommands(value) {
|
||||
this[kOptions].monitorCommands = value;
|
||||
}
|
||||
get autoEncrypter() {
|
||||
return this[kOptions].autoEncrypter;
|
||||
}
|
||||
get readConcern() {
|
||||
return this.s.readConcern;
|
||||
}
|
||||
get writeConcern() {
|
||||
return this.s.writeConcern;
|
||||
}
|
||||
get readPreference() {
|
||||
return this.s.readPreference;
|
||||
}
|
||||
get bsonOptions() {
|
||||
return this.s.bsonOptions;
|
||||
}
|
||||
get logger() {
|
||||
return this.s.logger;
|
||||
}
|
||||
connect(callback) {
|
||||
if (callback && typeof callback !== 'function') {
|
||||
throw new error_1.MongoInvalidArgumentError('Method `connect` only accepts a callback');
|
||||
}
|
||||
return (0, utils_1.maybePromise)(callback, cb => {
|
||||
(0, connect_1.connect)(this, this[kOptions], err => {
|
||||
if (err)
|
||||
return cb(err);
|
||||
cb(undefined, this);
|
||||
});
|
||||
});
|
||||
}
|
||||
close(forceOrCallback, callback) {
|
||||
// There's no way to set hasBeenClosed back to false
|
||||
Object.defineProperty(this.s, 'hasBeenClosed', {
|
||||
value: true,
|
||||
enumerable: true,
|
||||
configurable: false,
|
||||
writable: false
|
||||
});
|
||||
if (typeof forceOrCallback === 'function') {
|
||||
callback = forceOrCallback;
|
||||
}
|
||||
const force = typeof forceOrCallback === 'boolean' ? forceOrCallback : false;
|
||||
return (0, utils_1.maybePromise)(callback, callback => {
|
||||
if (this.topology == null) {
|
||||
// Do not connect just to end sessions
|
||||
return callback();
|
||||
}
|
||||
const activeSessionEnds = Array.from(this.s.activeSessions, session => session.endSession());
|
||||
this.s.activeSessions.clear();
|
||||
Promise.all(activeSessionEnds)
|
||||
.then(() => {
|
||||
if (this.topology == null) {
|
||||
return;
|
||||
}
|
||||
// If we would attempt to select a server and get nothing back we short circuit
|
||||
// to avoid the server selection timeout.
|
||||
const selector = (0, server_selection_1.readPreferenceServerSelector)(read_preference_1.ReadPreference.primaryPreferred);
|
||||
const topologyDescription = this.topology.description;
|
||||
const serverDescriptions = Array.from(topologyDescription.servers.values());
|
||||
const servers = selector(topologyDescription, serverDescriptions);
|
||||
if (servers.length === 0) {
|
||||
return;
|
||||
}
|
||||
const endSessions = Array.from(this.s.sessionPool.sessions, ({ id }) => id);
|
||||
if (endSessions.length === 0)
|
||||
return;
|
||||
return this.db('admin')
|
||||
.command({ endSessions }, { readPreference: read_preference_1.ReadPreference.primaryPreferred, noResponse: true })
|
||||
.catch(() => null); // outcome does not matter
|
||||
})
|
||||
.then(() => {
|
||||
if (this.topology == null) {
|
||||
return;
|
||||
}
|
||||
// clear out references to old topology
|
||||
const topology = this.topology;
|
||||
this.topology = undefined;
|
||||
return new Promise((resolve, reject) => {
|
||||
topology.close({ force }, error => {
|
||||
if (error)
|
||||
return reject(error);
|
||||
const { encrypter } = this[kOptions];
|
||||
if (encrypter) {
|
||||
return encrypter.close(this, force, error => {
|
||||
if (error)
|
||||
return reject(error);
|
||||
resolve();
|
||||
});
|
||||
}
|
||||
resolve();
|
||||
});
|
||||
});
|
||||
})
|
||||
.then(() => callback(), error => callback(error));
|
||||
});
|
||||
}
|
||||
/**
|
||||
* Create a new Db instance sharing the current socket connections.
|
||||
*
|
||||
* @param dbName - The name of the database we want to use. If not provided, use database name from connection string.
|
||||
* @param options - Optional settings for Db construction
|
||||
*/
|
||||
db(dbName, options) {
|
||||
options = options !== null && options !== void 0 ? options : {};
|
||||
// Default to db from connection string if not provided
|
||||
if (!dbName) {
|
||||
dbName = this.options.dbName;
|
||||
}
|
||||
// Copy the options and add out internal override of the not shared flag
|
||||
const finalOptions = Object.assign({}, this[kOptions], options);
|
||||
// Return the db object
|
||||
const db = new db_1.Db(this, dbName, finalOptions);
|
||||
// Return the database
|
||||
return db;
|
||||
}
|
||||
static connect(url, options, callback) {
|
||||
if (typeof options === 'function')
|
||||
(callback = options), (options = {});
|
||||
options = options !== null && options !== void 0 ? options : {};
|
||||
try {
|
||||
// Create client
|
||||
const mongoClient = new MongoClient(url, options);
|
||||
// Execute the connect method
|
||||
if (callback) {
|
||||
return mongoClient.connect(callback);
|
||||
}
|
||||
else {
|
||||
return mongoClient.connect();
|
||||
}
|
||||
}
|
||||
catch (error) {
|
||||
if (callback)
|
||||
return callback(error);
|
||||
else
|
||||
return promise_provider_1.PromiseProvider.get().reject(error);
|
||||
}
|
||||
}
|
||||
startSession(options) {
|
||||
const session = new sessions_1.ClientSession(this, this.s.sessionPool, { explicit: true, ...options }, this[kOptions]);
|
||||
this.s.activeSessions.add(session);
|
||||
session.once('ended', () => {
|
||||
this.s.activeSessions.delete(session);
|
||||
});
|
||||
return session;
|
||||
}
|
||||
withSession(optionsOrOperation, callback) {
|
||||
const options = {
|
||||
// Always define an owner
|
||||
owner: Symbol(),
|
||||
// If it's an object inherit the options
|
||||
...(typeof optionsOrOperation === 'object' ? optionsOrOperation : {})
|
||||
};
|
||||
const withSessionCallback = typeof optionsOrOperation === 'function' ? optionsOrOperation : callback;
|
||||
if (withSessionCallback == null) {
|
||||
throw new error_1.MongoInvalidArgumentError('Missing required callback parameter');
|
||||
}
|
||||
const session = this.startSession(options);
|
||||
const Promise = promise_provider_1.PromiseProvider.get();
|
||||
return Promise.resolve()
|
||||
.then(() => withSessionCallback(session))
|
||||
.then(() => {
|
||||
// Do not return the result of callback
|
||||
})
|
||||
.finally(() => {
|
||||
session.endSession().catch(() => null);
|
||||
});
|
||||
}
|
||||
/**
|
||||
* Create a new Change Stream, watching for new changes (insertions, updates,
|
||||
* replacements, deletions, and invalidations) in this cluster. Will ignore all
|
||||
* changes to system collections, as well as the local, admin, and config databases.
|
||||
*
|
||||
* @remarks
|
||||
* watch() accepts two generic arguments for distinct usecases:
|
||||
* - The first is to provide the schema that may be defined for all the data within the current cluster
|
||||
* - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument
|
||||
*
|
||||
* @param pipeline - An array of {@link https://docs.mongodb.com/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents.
|
||||
* @param options - Optional settings for the command
|
||||
* @typeParam TSchema - Type of the data being detected by the change stream
|
||||
* @typeParam TChange - Type of the whole change stream document emitted
|
||||
*/
|
||||
watch(pipeline = [], options = {}) {
|
||||
// Allow optionally not specifying a pipeline
|
||||
if (!Array.isArray(pipeline)) {
|
||||
options = pipeline;
|
||||
pipeline = [];
|
||||
}
|
||||
return new change_stream_1.ChangeStream(this, pipeline, (0, utils_1.resolveOptions)(this, options));
|
||||
}
|
||||
/** Return the mongo client logger */
|
||||
getLogger() {
|
||||
return this.s.logger;
|
||||
}
|
||||
}
|
||||
exports.MongoClient = MongoClient;
|
||||
//# sourceMappingURL=mongo_client.js.map
|
||||
Reference in New Issue
Block a user