AppSignal supports tagging of requests, as described in our tagging guides for Ruby and Elixir. These tags make it possible to generate URLs to your own application to deep link to pages in your own system, such as related user profiles or blog posts.

Tagging requests

For link templates to work AppSignal needs to have the data necessary to create the links. Start by adding tags to request in your application.

Add the following code in a location where it's executed for the related request, such as a before_action block in a Ruby on Rails application or using Plug in the Elixir Phoenix framework.

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# Ruby example
Appsignal.tag_request(
  :user_id    => current_user.id
  :account_id => current_account.id
)

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# Elixir example
Appsignal.Transaction.set_sample_data(
  "tags",
  %{user_id: current_user.id, account_id: current_account.id}
)

For more information about tagging requests, please read the tagging guide for Ruby and Elixir.

Creating a link template

Link templates can be defined on AppSignal.com per application.

The "Link templates" configuration can be found in the "Configure" section in the left-hand side navigation under "App settings" for a site.

Link templates can contain variables, defined by wrapping them in curly brackets {}. For example, the user_id tag can be used in a link like so:

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https://yourapp.com/backend/users/{user_id}

A link can contain as many variables as you like, but in order for a link to be generated, all variables need to be present in the tags of a request.

After adding tags in your app and defining link templates, links will be generated for each request in the "Overview" section.

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