# Mobile Locker JavaScript SDK > Official JavaScript SDK for building interactive presentations and custom features on the Mobile Locker platform. Package: `@mobilelocker/javascript-sdk`. Official SDK for Mobile Locker presentations (CRM, contacts, scanner, storage, and more). ## Guides - [Install](guides/install/): npm and package install - [Getting started](guides/getting-started/): first success path - [UMD in presentation HTML](guides/umd-html/): script-tag usage in presentations - [Environments](guides/environments/): isIOS, isAndroid, isWindows, isElectron, isCDN, isApp - [Changelog](guides/changelog/): release notes ## Examples - [Examples overview](examples/) - [SDK Demo IVA](examples/demo-iva/): companion IVA for this SDK (use in Mobile Locker app; source https://github.com/mobilelocker/mobilelocker-sdk-demo) ## Domains - [Domains overview](domains/): map of every module - [Analytics](domains/analytics/) - [Congresses](domains/congresses/) - [Contacts](domains/contacts/): cursor-paged address book - [CRM](domains/crm/): SOQL and cursor paging - [Data](domains/data/) - [Database](domains/database/) - [Device](domains/device/) - [Errors](domains/errors/) - [HTTP](domains/http/) - [localforage](domains/localforage/) - [Log](domains/log/) - [Network](domains/network/) - [Permissions](domains/permissions/) - [Presentation](domains/presentation/) - [Scanner](domains/scanner/) - [Search](domains/search/) - [Session](domains/session/) - [Share](domains/share/) - [Storage](domains/storage/) - [UI](domains/ui/) - [User](domains/user/) ## API modules - [CRMErrorCode](api/variables/CRMErrorCode/) - [DatabaseErrorCode](api/variables/DatabaseErrorCode/) - [EMAIL_DELIVERABILITY_STATUSES](api/variables/EMAIL_DELIVERABILITY_STATUSES/) - [GeneralErrorCode](api/variables/GeneralErrorCode/) - [HTTPErrorCode](api/variables/HTTPErrorCode/) - [analytics](api/variables/analytics/) - [congresses](api/variables/congresses/) - [contacts](api/variables/contacts/) - [crm](api/variables/crm/) - [data](api/variables/data/) - [database](api/variables/database/) - [default](api/variables/default/) - [device](api/variables/device/) - [http](api/variables/http/) - [localforage](api/variables/localforage/) - [log](api/variables/log/) - [network](api/variables/network/) - [permissions](api/variables/permissions/) - [presentation](api/variables/presentation/) - [scanner](api/variables/scanner/) - [search](api/variables/search/) - [session](api/variables/session/) - [share](api/variables/share/) - [storage](api/variables/storage/) - [ui](api/variables/ui/) - [user](api/variables/user/) ## Full API tree - [API overview](api/)