---
title: "IDBOpenDBRequestEventMap | JavaScript maps SDK"
description: "Documentation for MapTiler SDK"
---

> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.

# Interface IDBOpenDBRequestEventMap

interface IDBOpenDBRequestEventMap {  
    [blocked](#blocked): [IDBVersionChangeEvent](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.IDBVersionChangeEvent/);  
    [error](#error): Event;  
    [success](#success): Event;  
    [upgradeneeded](#upgradeneeded): [IDBVersionChangeEvent](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.IDBVersionChangeEvent/);  
}

#### Hierarchy ([View Summary](https://docs.maptiler.com/sdk-js/api-reference/hierarchy/#Externals.IDBOpenDBRequestEventMap))

-   [IDBRequestEventMap](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.IDBRequestEventMap/)
    -   IDBOpenDBRequestEventMap

##### Index

### Properties[](#properties)

[blocked](#blocked) [error](#error) [success](#success) [upgradeneeded](#upgradeneeded)

## Properties[](#properties-1)

### blocked[](#blocked)

blocked: [IDBVersionChangeEvent](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.IDBVersionChangeEvent/)

### error[](#error)

error: Event

Inherited from [IDBRequestEventMap](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.IDBRequestEventMap/).[error](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.IDBRequestEventMap/#error)

### success[](#success)

success: Event

Inherited from [IDBRequestEventMap](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.IDBRequestEventMap/).[success](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.IDBRequestEventMap/#success)

### upgradeneeded[](#upgradeneeded)

upgradeneeded: [IDBVersionChangeEvent](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.IDBVersionChangeEvent/)