File size: 3,126 Bytes
f0743f4 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 | require('dotenv').config();
const { isEnabled } = require('@librechat/api');
const { logger } = require('@librechat/data-schemas');
const mongoose = require('mongoose');
const MONGO_URI = process.env.MONGO_URI;
if (!MONGO_URI) {
throw new Error('Please define the MONGO_URI environment variable');
}
/** The maximum number of connections in the connection pool. */
const maxPoolSize = parseInt(process.env.MONGO_MAX_POOL_SIZE) || undefined;
/** The minimum number of connections in the connection pool. */
const minPoolSize = parseInt(process.env.MONGO_MIN_POOL_SIZE) || undefined;
/** The maximum number of connections that may be in the process of being established concurrently by the connection pool. */
const maxConnecting = parseInt(process.env.MONGO_MAX_CONNECTING) || undefined;
/** The maximum number of milliseconds that a connection can remain idle in the pool before being removed and closed. */
const maxIdleTimeMS = parseInt(process.env.MONGO_MAX_IDLE_TIME_MS) || undefined;
/** The maximum time in milliseconds that a thread can wait for a connection to become available. */
const waitQueueTimeoutMS = parseInt(process.env.MONGO_WAIT_QUEUE_TIMEOUT_MS) || undefined;
/** Set to false to disable automatic index creation for all models associated with this connection. */
const autoIndex =
process.env.MONGO_AUTO_INDEX != undefined
? isEnabled(process.env.MONGO_AUTO_INDEX) || false
: undefined;
/** Set to `false` to disable Mongoose automatically calling `createCollection()` on every model created on this connection. */
const autoCreate =
process.env.MONGO_AUTO_CREATE != undefined
? isEnabled(process.env.MONGO_AUTO_CREATE) || false
: undefined;
/**
* Global is used here to maintain a cached connection across hot reloads
* in development. This prevents connections growing exponentially
* during API Route usage.
*/
let cached = global.mongoose;
if (!cached) {
cached = global.mongoose = { conn: null, promise: null };
}
async function connectDb() {
if (cached.conn && cached.conn?._readyState === 1) {
return cached.conn;
}
const disconnected = cached.conn && cached.conn?._readyState !== 1;
if (!cached.promise || disconnected) {
const opts = {
bufferCommands: false,
...(maxPoolSize ? { maxPoolSize } : {}),
...(minPoolSize ? { minPoolSize } : {}),
...(maxConnecting ? { maxConnecting } : {}),
...(maxIdleTimeMS ? { maxIdleTimeMS } : {}),
...(waitQueueTimeoutMS ? { waitQueueTimeoutMS } : {}),
...(autoIndex != undefined ? { autoIndex } : {}),
...(autoCreate != undefined ? { autoCreate } : {}),
// useNewUrlParser: true,
// useUnifiedTopology: true,
// bufferMaxEntries: 0,
// useFindAndModify: true,
// useCreateIndex: true
};
logger.info('Mongo Connection options');
logger.info(JSON.stringify(opts, null, 2));
mongoose.set('strictQuery', true);
cached.promise = mongoose.connect(MONGO_URI, opts).then((mongoose) => {
return mongoose;
});
}
cached.conn = await cached.promise;
return cached.conn;
}
module.exports = {
connectDb,
};
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