> For the complete documentation index, see [llms.txt](https://neurosell.gitbook.io/parallelix/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://neurosell.gitbook.io/parallelix/api-reference/pwa-and-web-applications.md).
# PWA and Web Applications
### What is Web application (PWA)
This is a **basic module that applies to all platforms**, except for those you have specified in the configuration of the [Parallelix](/parallelix/api-reference/general-client.md#general-client-api-reference-parallelix) object.
{% hint style="danger" %}
This module will always be loaded by default, so it must be available for the Parallelix client.\
[**See the General Client section for downloading paths**](/parallelix/api-reference/general-client.md).
{% endhint %}
For example, if the platforms you selected were **vk** and **telegram**, this module will be used outside these platforms.
**This module is support PWA methods.**
***
### Web Module (ParallelixWeb)
{% hint style="warning" %}
**Module Name:** "web" (default)
{% endhint %}
Any of our modules **inherits from** [ParallelixWrapper](/parallelix/api-reference/general-client.md#parallelixwrapper-class) - a virtual class describing a **unified SDK structure**.\
Below we have described the peculiarities of working with the module, as well as the differences and description of API parameters for the current module.
#### PlatformSpecificParameters
**These are parameters** that are passed inside some module methods. When working with them, you need to **create subobjects** as [described in the documentation on working with such parameters](/parallelix/api-reference/general-client.md#platformspecificparameters).\
Inside this subobject are the parameters described in the documentation of a particular platform.
**Below we have described each method available for calling, its parameters with a reference to the official documentation and the name of the official method.**
***
### **Platform Specific configuration**
| Field | Type | Description |
| -------- | ------ | ------------------------- |
| manifest | string | Path to PWA manifest file |
### **API Reference**
| Method | Description | Parameters |
| ---------------- | --------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| GetLaunchParams | Get current browser search parameters (query) |
Returns in onSuccess:
Key Value object with window arguments
|
| HandleEvents | Handle all "message" events from current window. | - |
| GetClientInfo | Returns information about current browser and client |
Returns in onSuccess:
Information about current clinet (version, platform, userAgent, userAgentData)
|
| ToggleFullscreen | Toggle browser / pwa fullscreen mode | boolean state of fullscreen |
| AddToHomeScreen | Adding current PWA on home screen. Can't work without PWA manifest in your application. | onSuccess and onError callbacks. |
| AddToFavorites | Add current page to favourites in browser | Parameters are empty. Has onSuccess and onError callbacks |
| OpenLink | Open link in new window | url \[string] |
| GetStorage | Get local storage item | key \[string] key name |
| SetStorage | Set local storage item |
key \[string] key name
value \[dynamic] storage value
|
| RequestLocation | Request user geolocation |
Return an object in onSuccess with parameters from: