Add code examples for adding custom data as structured context with ruby/rails about sentry-docs

[getsantry]

Assigning to @getsentry/support for routing ⏲️

[getsantry]

Routing to @getsentry/product-owners-sdks-web-backend for triage ⏲️

[sl0thentr0py]

hey @amo13 i'll add some clarification to the docs but the quick answer for you is that a before_action should work.

[amo13]

Thank you very much. This unfortunately does not answer my question just yet:
In my rails project, I define exception classes and use raise MyError, "Some text telling what happened" in the code (not only controller, also model, modules, jobs, etc.). What I'd like to achieve is to submit additional context from there, where I raise MyError, maybe to catch arguments given to the method raising MyError, or to add the state of some linked object.

I was hoping for something like

def method_anywhere_in_project
  ...
  raise MyError.new(context1: "something", context2: 42)
  ...
end

...and maybe magically when sentry catches that error, it would submit context1 and context2 as part of the Exception.

[sl0thentr0py]

You can't add those to the exception instance but you can do the following even in your model method and when sentry captures that exception it will pick up this data. Think of the scope as state that is flowing along with your request logic and it gets picked up when the event is finally sent to sentry.

Sentry.configure_scope do |scope|
  scope.set_context(
    'character',
    {
      name: 'Mighty Fighter',
      age: 19,
      attack_type: 'melee'
    }
  )
end