1. [URL-parameters and URL-hash](#URL-parameters_and_URL-hash)
- [What is a URL parameter?](#what_is_a_url_parameter)
- [fs-userbadge](#fs-userbadge)
- [fs-search](#fs-search)
- [fs-background](#fs-background)
- [fs-filter](#fs-filter)
- [fs-add-new](#fs-add-new)
- [fs-welcome-message](#fs-welcome-message)
- [fs-iframe-popout](#fs-iframe-popout)
- [fs-more-quests](#fs-more-quests)
- [fs-share-screen](#fs-share-screen)
- [fs-geolocation](#fs-geolocation)
- [fs-all-questions](#fs-all-questions)
- [fs-export](#fs-export)
- [fs-pdf](#fs-pdf)
- [backend](#backend)
- [test](#test)
- [debug](#debug)
- [fake-user](#fake-user)
- [overpassUrl](#overpassUrl)
- [overpassTimeout](#overpassTimeout)
- [overpassMaxZoom](#overpassMaxZoom)
- [osmApiTileSize](#osmApiTileSize)
- [background](#background)
- [layer-<layer-id>](#layer-<layer-id>)
This document gives an overview of which URL-parameters can be used to influence MapComplete.
What is a URL parameter?
--------------------------
"URL-parameters are extra parts of the URL used to set the state. For example, if the url is `https://mapcomplete.osm.be/cyclofix?lat=51.0&lon=4.3&z=5&test=true#node/1234`, the URL-parameters are stated in the part between the `?` and the `#`. There are multiple, all separated by `&`, namely:
- The url-parameter `lat` is `51.0` in this instance
- The url-parameter `lon` is `4.3` in this instance
- The url-parameter `z` is `5` in this instance
- The url-parameter `test` is `true` in this instance
Finally, the URL-hash is the part after the `#`. It is `node/1234` in this case.
Disables/Enables the user information pill (userbadge) at the top left. Disabling this disables logging in and thus disables editing all together, effectively putting MapComplete into read-only mode. The default value is _true_
Disables/Enables the iframe-popout button. If in iframe mode and the welcome message is hidden, a popout button to the full mapcomplete instance is shown instead (unless disabled with this switch) The default value is _true_
If true, 'dryrun' mode is activated. The app will behave as normal, except that changes to OSM will be printed onto the console instead of actually uploaded to osm.org The default value is _false_
Point mapcomplete to a different overpass-instance. Example: https://overpass-api.de/api/interpreter The default value is _https://overpass-api.de/api/interpreter,https://overpass.kumi.systems/api/interpreter,https://overpass.openstreetmap.ru/cgi/interpreter_