# Use MAP with ACL Runtime API not with use\_backend

**URL:** <https://discourse.haproxy.org/t/use-map-with-acl-runtime-api-not-with-use-backend/9139>\
**Category:** Configuration Samples\
**Created:** [October 20, 2023, 5:44am UTC](https://discourse.haproxy.org/t/use-map-with-acl-runtime-api-not-with-use-backend/9139 "2023-10-20T05:44:42Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![community.primp716](https://avatars.discourse-cdn.com/v4/letter/c/ecae2f/32.png) [@community.primp716](https://discourse.haproxy.org/u/community.primp716)\
**Post date:** [October 20, 2023, 5:44am UTC](https://discourse.haproxy.org/t/use-map-with-acl-runtime-api-not-with-use-backend/9139/1 "2023-10-20T05:44:42Z")

</div>

Hello I want to setup ACL with using the Maps, but I’m not sure if we can setup similar settings.

This is the current config.

```auto
frontend master
       use_backend slow if { be_conn(master_backend) gt 100 }
       use_backend master_backend

```

I want to rewrite it with ACL and Maps

```auto
frontend master
       acl more_than_100 be_conn(master_backend) gt 100

       use_backend slow if more_than_100
       use_backend master_backend

```

`default.map`

```auto
more_than_100 100

```

```auto
frontend master
       acl more_than_100 be_conn(master_backend) gt %[int(more_than_100),map(/etc/haproxy/maps/default.map)]

       use_backend slow if more_than_100
       use_backend master_backend

```

Questions:  
#1. Is it even possible to use maps as ACL for anywhere in config?  
#2. Not sure how can I fix the config here.

Reason: Why I want to do this is, I want to update this ACL condition values with HAPROXY Runtime API but rather than update with ACL I want to do it with Maps. I want to update Maps value on runtime basis so that will update the ACL condition values too.