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nym/explorer-api/README.md
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Pierre Dommerc 3c55b28e69 feat(explorer-api): auto update geoip database (#1684)
* feat(explorer-api): auto update geoip database

* feat(explorer-api): read dotenv file

* fix(explorer-api): gitignore

* feat: move geoipupdate service to root compose file
2022-10-24 18:17:50 +02:00

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# Network Explorer API
An API that provides data for the [Network Explorer](../explorer).
Features:
- geolocates mixnodes using https://dev.maxmind.com/geoip/geolite2-free-geolocation-data
- calculates how many nodes are in each country
- proxies mixnode API requests to add HTTPS
## GeoIP db install/update
First we need to install the geoip database.
We use https://github.com/maxmind/geoipupdate to automatically
download and update GeoLite2 binary database. For convenience we
run it as a docker container.
At the root of the repo, inside the `docker-compose.yml`, there
is a docker service `geoipupdate` for it.
Supposed you provided an `.env` file with **all the environment
variables** listed in `.env.sample-dev` (found at the root),
simply run the service through docker:
```shell
docker compose up -d geoipupdate
```
Running this command will automatically install (and update) the
db file inside the directory path provided by `GEOIP_DB_DIRECTORY`
env variable.
## Running
When starting the explorer-api, supply the environment variable
`GEOIP_DB_PATH`, pointing to the GeoLite2 binary database file.
It should be previously installed thanks to `geoipupdate` service.
For example:
```shell
GEOIP_DB_PATH=./geo_ip/GeoLite2-Country.mmdb cargo run
```
Note: explorer-api binary reads the provided `.env` file.
Run as a service and reverse proxy with `nginx` to add `https` with Lets Encrypt.
Setup nginx to inject the request IP to the header `X-Real-IP`.
# TODO / Known Issues
## TODO
- record the number of mixnodes on a given date and write to a file for later retrieval
- dependency injection
- tests