This document describes how to get Sentry (the Epic application monitoring provider) set up for error, performance, and replay monitoring.

NOTE: this is an optional step and only needed if you want monitoring in production.

SaaS vs Self-Hosted

Sentry offers both a SaaS solution and self-hosted solution. This guide assumes you are using SaaS but the guide still works with self-hosted with a few modifications.

Signup

You can sign up for Sentry and create a Remix project from visiting this url and filling out the signup form.

Onboarding

Once you see the onboarding page which has the DSN, copy that somewhere (this becomes SENTRY_DSN). Then click this to create an internal integration. Give it a name and add the scope for Releases:Admin. Press Save, find the auth token at the bottom of the page under "Tokens", and copy that to secure location (this becomes SENTRY_AUTH_TOKEN). Then visit the organization settings page and copy that organization slug (SENTRY_ORG_SLUG).

Now, set the secrets in Fly.io:

fly secrets set SENTRY_DSN=<your_dsn> SENTRY_AUTH_TOKEN=<your_auth_token> SENTRY_ORG=<your_org_slug> SENTRY_PROJECT=javascript-remix

Note that javascript-remix is the name of the default Remix project in Sentry and if you use a different project name you'll need to update that value here.

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