private async createTreeItem()

in src/tree/AttachedAccountsTreeItem.ts [321:355]
32 lines of code
10 McCabe index (conditional complexity)

    private async createTreeItem(connectionString: string, api: API, label?: string, id?: string, isEmulator?: boolean): Promise<AzExtTreeItem> {
        let treeItem: AzExtTreeItem;
        if (api === API.MongoDB) {
            if (id === undefined) {
                const parsedCS = await parseMongoConnectionString(connectionString);
                id = parsedCS.fullId;
            }

            label = label || `${id} (${getExperienceFromApi(api).shortName})`;
            treeItem = new MongoAccountTreeItem(this, id, label, connectionString, isEmulator);
        } else if (api === API.PostgresSingle || api === API.PostgresFlexible) {
            const parsedPostgresConnString = parsePostgresConnectionString(connectionString);
            treeItem = new PostgresServerTreeItem(this, parsedPostgresConnString);
        } else {
            const parsedCS = parseDocDBConnectionString(connectionString);

            label = label || `${parsedCS.accountId} (${getExperienceFromApi(api).shortName})`;
            switch (api) {
                case API.Table:
                    treeItem = new TableAccountTreeItem(this, parsedCS.accountId, label, parsedCS.documentEndpoint, parsedCS.masterKey, isEmulator);
                    break;
                case API.Graph:
                    treeItem = new GraphAccountTreeItem(this, parsedCS.accountId, label, parsedCS.documentEndpoint, undefined, parsedCS.masterKey, isEmulator);
                    break;
                case API.Core:
                    treeItem = new DocDBAccountTreeItem(this, parsedCS.accountId, label, parsedCS.documentEndpoint, parsedCS.masterKey, isEmulator);
                    break;
                default:
                    throw new Error(`Unexpected defaultExperience "${api}".`);
            }
        }

        treeItem.contextValue += AttachedAccountSuffix;
        return treeItem;
    }