Hi, this gist contains a lot of useless things and is additionally outdated. This should work:
curl --data '{ ... }' \
-H 'Content-Type: application/json' \
-H "X-Sentry-Auth: Sentry sentry_version=7, sentry_key=$SENTRY_KEY, sentry_client=raven-bash/0.1" \
https://sentry.io/api/$PROJECT_ID/store/
$SENTRY_KEY
is the hash in the DSN, $PROJECT_ID
is the integer at the end of the DSN.
Also consider https://docs.sentry.io/clientdev/overview/?platform=javascript which contains a lot of useful information should you decide to write your own SDK