Project-GC Q&A - Recent questions tagged location

Better Documentation of Dynamic Location Update URL

Mon, 18 Aug 2025 07:31:03 +0000

The New Cache Notifiers page has documentation for setting up GPS Logger for Android, but it does not have a generic documentation of the parameters supported by the https://project-gc.com/api/UserLocation/Update/ API.

A documentation would be nice, especially for parameters that are non-obvious, e.g. like this:

# Help: Dynamic Notifiers

You can dynamically update some settings of a notifier by using the URL https://project-gc.com/api/UserLocation/Update/ with parameters. Supported parameters are:

protocol=1 - the update protocol to use, this must always be 1
uid=<USER-ID> - your user ID. Use the user id from your settings page.
token=<TOKEN> - the access token to Project GC. Use the token from your settings page. Keep in mind that the token should be kept as safe as a password.
nid=<NOTIFIER-ID> - the ID of the notifier. You can see a notifier's ID if you edit it
ts=<timestamp> - the timestamp of your update, in ISO-format, e.g. 2025-01-31T14:35:59+0100. Updates that have a timestamp that is older than the most recent update are ignored (?)
latitude=<latitude> - the latitude of the dynamic location, using decimal degrees, such as 12.34567
longitude=<longitude> - the latitude of the dynamic location, using decimal degrees, such as 56.78901
acc=<accuracy> - the accuracy of your latitude/longitude measurement in meters. (why would this be relevant?)
enable=1 - if you add this parameter and the notifier is currently disabled, the update will enable it

To update a notifier, add the parameters to the URL after a question mark, separate them via & signs, for example like this: https://project-gc.com/api/UserLocation/Update/?protocol=1&uid=<USER-ID>&latitude=<latitude>&longitude=<longitude>&ts=<timestamp>&token=<TOKEN>&nid=<NOTIFIER-ID>

New cache notifier dynamic location updater

Mon, 10 Jun 2024 20:31:04 +0000

This is not a question, but rather a solution created by me to ease the process of updating dynamic location for new cache notifiers.

I found the configuration of GPS logger overwhelming for what it's supposed to do regarding the new cache notifiers at Project-GC.

I have created a simple yet useful webapp that imitate the request that GPS logger makes to update the new cache notifier with dynamic location. It does not use any data on server side. It just composes a URL that GPS logger sends on location updates and performs it on behalf of the user. It remembers the values in user's browser.

One can choose location from the map or use the device's GPS to update the notifier location. It should work on all mobile devices.

If you want, you can check it out working here: https://fracz.github.io/pgc-location-updater/ and the source code is available here: https://github.com/fracz/pgc-location-updater/blob/main/index.html

Happy hunting!

Sharing Dynamic Location for someone else?

Fri, 09 Jun 2023 06:22:25 +0000

I use the Dynamic Location for New Cache Notifiers. Sometimes I travel and hike alone. Can I share my location with someone else? Just a map with my current location or history via a special link. That would be a cool feature!

Changed statistics in case of change of home location / relocation

Fri, 28 May 2021 14:28:50 +0000

What happens to the previous statistics data if, for example, you move to another region?

Actually, there should be some kind of subtotal for the statistics of the previous home location. Then a new count for the new home location and finally a sum result from both (or more) subtotals.

If something like this does not exist yet, I am in favour of integrating it as a new feature.

Kind regards
SuchfixBW

Auto complete of location for center/radius filter not working

Fri, 07 Sep 2018 10:12:17 +0000

Hi,

not sure if this is a config error in my browser or a bug:

When I used the "center/radius" filter e.g. on "Most favorite points" search in former times, it used to have an autocomplete/suggestion function (I guess based on Google).

This recently stopped working for me. Now I have the problem, that due to this the search often returns empty results (due to the location not beeing found). This e.g. happens for the location "Quebec".

Can someone reproduce or explain?

Regards,

Lineflyer

Which owners are active in location XY?

Mon, 12 Jan 2015 10:21:50 +0000

Is there a way to find out, which owners are active in a specified region?

I would like to get a list of all owners who have placed (still active) caches at location XY with radius of Z km around the center.

Is that possible with current features? If not that would be a very neat feature.

Christian

Does anyone know an app/ tool, that provides me the information, in which county I am currently located?

Sat, 08 Nov 2014 15:30:19 +0000

Hi,

I like the statistics about the different counties (German: "Landkreise"), but does anyone know a handy solution how to quickly find out, in which county I currently am? I know I could find all caches that belong to a certain county, but I would prefer to know in which county I currenty am to then look for nearby caches. I googled this, but did not find an appropriate app/ tool that provides me this information.

Best regards
Sven