Honeybadger for Crystal

Typical installation time: ~2 minutes

Hi there! You’ve found Honeybadger’s guide to Crystal exception and error tracking. Once installed, Honeybadger will automatically report errors in your Crystal application.

Getting Started

Source Code

Installation

Update your shard.yml to include honeybadger:

diff
dependencies: + honeybadger: + github: honeybadger-io/honeybadger-crystal

Configure your API key (available under Project Settings in Honeybadger):

crystal
Honeybadger.configure do |config| config.api_key = ENV["HONEYBADGER_API_KEY"]? || "API Key" config.environment = ENV["HONEYBADGER_ENVIRONMENT"]? || "production" end

Reporting Errors

Reporting Errors in Web Frameworks

If you’re using a web framework, add the Honeybadger::Handler to the HTTP::Server stack:

crystal
HTTP::Server.new([Honeybadger::Handler.new]) do |context| # ... end

Details for adding the handler to:

Reporting Errors Manually

For non-web contexts, or to manually report exceptions to Honeybadger, use Honeybadger.notify:

crystal
begin # run application code raise "OH NO!" rescue exception Honeybadger.notify(exception) end

Identifying Users

Honeybadger can track what users have encountered each error. To identify the current user in error reports, add a user identifier and/or email address to Honeybadger’s context hash:

crystal
# Explicit Context Honeybadger.notify(exception, context: { "user_id" => user.id, "user_email" => "user@example.com" }) # Managed Context Honeybadger.context(user_id: user.id)

For an example of identifying users in HTTP handlers, see demo/http_context.cr

Learn more about context data in Honeybadger

Configuration

To set configuration options, use the Honeybadger.configure method:

crystal
Honeybadger.configure do |config| config.api_key = "API Key" config.environment = "production" end

The following configuration options are available:

Name Type Default Example Environment Var
api_key String "" "badgers" HONEYBADGER_API_KEY
endpoint Path\ String "https://api.honeybadger.io" "https://honeybadger.example.com/"
hostname String The hostname of the current server. "badger" HONEYBADGER_HOSTNAME
project_root String The current working directory "/path/to/project" HONEYBADGER_PROJECT_ROOT
report_data bool true false HONEYBADGER_REPORT_DATA
development_environments Array(String) [“development”,“test”] HONEYBADGER_DEVELOPMENT_ENVIRONMENTS
environment String? nil "production" HONEYBADGER_ENVIRONMENT
merge_log_context bool true false n/a

Documentation for context variables can be found in the Configuration class

Environment based config

Honeybadger can also be configured from environment variables. Each variable has a correlated environment variable and is prefixed with HONEYBADGER_. For example:

env HONEYBADGER_API_KEY=2468 ./server

All environment variables are documented in the configuration table above.

Version Requirements

Crystal > 0.36.1