---
title: "Config | 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.

# Type Alias Config

type Config \= {  
    [MAX\_PARALLEL\_IMAGE\_REQUESTS](#max_parallel_image_requests): number;  
    [MAX\_PARALLEL\_IMAGE\_REQUESTS\_PER\_FRAME](#max_parallel_image_requests_per_frame): number;  
    [MAX\_TILE\_CACHE\_ZOOM\_LEVELS](#max_tile_cache_zoom_levels): number;  
    [REGISTERED\_PROTOCOLS](#registered_protocols): { \[x: string\]: [AddProtocolAction](https://docs.maptiler.com/sdk-js/api-reference/types/AddProtocolAction/) };  
    [WORKER\_URL](#worker_url): string;  
}

##### Index

### Properties[](#properties)

[MAX\_PARALLEL\_IMAGE\_REQUESTS](#max_parallel_image_requests) [MAX\_PARALLEL\_IMAGE\_REQUESTS\_PER\_FRAME](#max_parallel_image_requests_per_frame) [MAX\_TILE\_CACHE\_ZOOM\_LEVELS](#max_tile_cache_zoom_levels) [REGISTERED\_PROTOCOLS](#registered_protocols) [WORKER\_URL](#worker_url)

## Properties[](#properties-1)

### MAX\_PARALLEL\_IMAGE\_REQUESTS[](#max_parallel_image_requests)

MAX\_PARALLEL\_IMAGE\_REQUESTS: number

### MAX\_PARALLEL\_IMAGE\_REQUESTS\_PER\_FRAME[](#max_parallel_image_requests_per_frame)

MAX\_PARALLEL\_IMAGE\_REQUESTS\_PER\_FRAME: number

### MAX\_TILE\_CACHE\_ZOOM\_LEVELS[](#max_tile_cache_zoom_levels)

MAX\_TILE\_CACHE\_ZOOM\_LEVELS: number

### REGISTERED\_PROTOCOLS[](#registered_protocols)

REGISTERED\_PROTOCOLS: { \[x: string\]: [AddProtocolAction](https://docs.maptiler.com/sdk-js/api-reference/types/AddProtocolAction/) }

### WORKER\_URL[](#worker_url)

WORKER\_URL: string