public async loadMoreChildrenImpl()

in src/mongo/tree/MongoAccountTreeItem.ts [51:92]
34 lines of code
12 McCabe index (conditional complexity)

    public async loadMoreChildrenImpl(_clearCache: boolean): Promise<AzExtTreeItem[]> {
        let mongoClient: MongoClient | undefined;
        try {
            let databases: IDatabaseInfo[];

            if (!this.connectionString) {
                throw new Error('Missing connection string');
            }

            // Azure MongoDB accounts need to have the name passed in for private endpoints
            mongoClient = await connectToMongoClient(this.connectionString, this.databaseAccount ? nonNullProp(this.databaseAccount, 'name') : appendExtensionUserAgent());

            const databaseInConnectionString = getDatabaseNameFromConnectionString(this.connectionString);
            if (databaseInConnectionString && !this.root.isEmulator) { // emulator violates the connection string format
                // If the database is in the connection string, that's all we connect to (we might not even have permissions to list databases)
                databases = [{
                    name: databaseInConnectionString,
                    empty: false
                }];
            } else {
                // https://mongodb.github.io/node-mongodb-native/3.1/api/index.html
                // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
                const result: { databases: IDatabaseInfo[] } = await mongoClient.db(testDb).admin().listDatabases();
                databases = result.databases;
            }
            return databases
                .filter((database: IDatabaseInfo) => !(database.name && database.name.toLowerCase() === "admin" && database.empty)) // Filter out the 'admin' database if it's empty
                .map(database => new MongoDatabaseTreeItem(this, nonNullProp(database, 'name'), this.connectionString));
        } catch (error) {
            const message = parseError(error).message;
            if (this._root.isEmulator && message.includes("ECONNREFUSED")) {
                // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
                error.message = `Unable to reach emulator. See ${Links.LocalConnectionDebuggingTips} for debugging tips.\n${message}`;
            }
            throw error;
        }
        finally {
            if (mongoClient) {
                void mongoClient.close();
            }
        }
    }