Scouting App

There are 2 big parts to the scouting app:

• The database
• The webserver

If you want to run the scouting app, you will need to run both of the above mentioned parts.

Running the database

Run the database like so:

$ bazel run //scouting/db/testdb_server -- --port 2345

Choose a port that no one else is using. Anything above 1024 should be fine.

Wait until the database has fully started up before starting the webserver.

Connecting directly to the database

You can use the psql program to look at the contents of the database directly.

$ bazel run @postgresql_amd64//:psql -- --port=2345 --host=localhost --username=test --dbname=postgres

postgres=# select * from team_match_stats;

Running the webserver

The //scouting target runs the webserver and hosts all the web pages. Run it like so:

$ bazel run //scouting -- --testdb_port 2345 --port 1234

The --testdb_port value must match the port you selected when running the database.

The --port value must be one that no one else is using. Anything above 1024 should be fine.

Viewing the scouting app on your computer

When you run the webserver on the build server, you cannot access the scouting app without a port forward. You can use a separate terminal for this.

$ ssh -L 1234:localhost:1234 <build_server>

where 1234 is the port that your instance of the webserver is using. <build_server> is the SSH Host entry in your ~/.ssh/config file for the build server.

You can then visit http://localhost:1234/ to look at the webserver.

Running the webserver with HTTPS

You can test HTTPS and LDAP interation by running the webserver in a slightly different way.

$ bazel run //scouting:https -- --testdb_port 2345 --https_port 3456

The --testdb_port value must match the port you selected when running the database.

The --https_port value is the port at which the webserver is available via HTTPS. See the documentation in tools/build_rules/apache.bzl for more information. The documentation tells you how to set up an ldap.json configuration.

You can then visit https://localhost:3456/ to look at the webserver.

Getting data from thebluealliance.com

We get a few pieces of information from The Blue Alliance:

• the match schedule, and
• the team rankings.

For this to work, you need to set up a config file that contains your API key for The Blue Alliance. Follow these steps if you want to get data from The Blue Alliance.

1. Make an account on <www.thebluealliance.com>. If helpful, you can use your Google account or Apple account to log in.
2. On the Account page, scroll down to the "Read API Keys" section.
3. Enter something like "scouting app" in the "Description" field and click the "Add New Key" button.
4. Scroll back down to the "Read API Keys" section.
5. Copy the X-TBA-Auth-Key in the table. It looks like a long string of random characters and numbers.

Now that you have your API key, create a config file called scouting_config.json in the root of the 971-Robot-Code repo. It should have the following contents:

{
    "api_key": "<api key>"
}

where <api key> needs to be replaced by the key you copied from your Account page on <www.thebluealliance.com>.

When running the webserver, add the -tba_config option, specifying the absolute path of the config file.

$ bazel run //scouting -- ... --tba_config=$PWD/scouting_config.json

Scraping ranking data

In order to scrape ranking data, add the competition-specific information to scouting_config.json. It should look like this:

{
    "api_key": "<api key>",
    "year": <year>,
    "event_code": "<event code>",
}

where <year> is the year of the event and <event_code> is the short code for the event. A list of event codes is available here.

Debugging Cypress tests

See the dedicated section for this.