# Result builder
{% hint style="success" %}
This is the official documentation of the `agent_ruby` Ruby agent.
{% endhint %}
Actions can be configured to achieve different results in the GUI.
Most actions will simply perform work and display the default notification, however, other behaviors are possible:
* [Displaying a notification with a custom message](#custom-notifications)
* [Displaying HTML content in a side panel](#html-result)
* [Generating a file download](#file-generation)
* [Redirecting the user to another page](#redirections)
* [Calling a webhook from the user's browser](#webhooks) (for instance to trigger a login in a third-party application)
* [Invalidating related data](/developer-guide-agents-ruby/agent-customization/actions/related-data-invalidation.md)
### Default behavior
The default behavior, when no exception is thrown in the handler is to display a generic notification.
#### Traditional Syntax
Using full context methods with `customize_collection`:
```ruby
include ForestAdmin::Types
@create_agent.customize_collection('company') do |collection|
collection.add_action(
'Mark as live',
BaseAction.new(scope: ActionScope::SINGLE) do |context|
# Not using the resultBuilder here will display the generic success notification.
# (as long as no exception is thrown)
end
)
end
```
#### DSL Syntax
Using simplified helper methods with `collection.action`:
```ruby
@create_agent.collection :company do |collection|
collection.action 'Mark as live', scope: :single do
execute do
# Not using the result builder here will display the generic success notification.
# (as long as no exception is thrown)
end
end
end
```
### Custom notifications
When customizing the notification message, you can use the `ForestAdminDatasourceCustomizer::Decorators::Action::ResultBuilder` to generate different types of responses.
 
#### Traditional Syntax
Using full context methods with `customize_collection`:
```ruby
include ForestAdmin::Types
@create_agent.customize_collection('company') do |collection|
collection.add_action(
'Mark as live',
BaseAction.new(scope: ActionScope::SINGLE) do |_context, result_builder|
if # Company is not live
result_builder.success(message: 'Company is now live!')
else
result_builder.error(message: 'The company was already live!')
end
end
)
end
```
#### DSL Syntax
Using simplified helper methods with `collection.action`:
```ruby
@create_agent.collection :company do |collection|
collection.action 'Mark as live', scope: :single do
execute do
if # Company is not live
success 'Company is now live!'
else
error 'The company was already live!'
end
end
end
end
```
### HTML result
You can also return an HTML page to give more feedback to the user who triggered the Action.
```ruby
include ForestAdmin::Types
@create_agent.customize_collection('company') do |collection|
collection.add_action(
'Charge credit card',
BaseAction.new(scope: ActionScope::SINGLE) do |context, result_builder|
# ... charge the credit card ...
record = context.get_record(['amount', 'source:last4'])
if credit_card_successfully_charged
result_builder.success(
message: 'Success',
options: {
html: "#{record['amount'] / 100} USD has been successfully charged.
Credit card
**** **** **** #{record['source']['last4']}
"
}
)
else
result_builder.error(
message: 'An error occured',
options: {
html: "#{record['amount'] / 100} USD has not been charged.
Credit card
**** **** **** #{record['source']['last4']}
Reason
You can not charge this credit card. The card is marked as blocked
"
}
)
end
end
)
end
```
### File generation
{% hint style="warning" %}
Because of technical limitations, Smart Actions that generate files should be flagged as such with the `generateFile` option.
This will cause the GUI to download the output of the action, but will also prevent from being able to use the `resultBuilder` to display notifications, errors, or HTML content.
{% endhint %}
Smart actions can be used to generate or download files.
The example code below will trigger a file download (with the file named `filename.txt`, containing `StringThatWillBeInTheFile` using `text/plain` mime-type).
```ruby
include ForestAdmin::Types
@create_agent.customize_collection('company') do |collection|
collection.add_action(
'Download a file',
BaseAction.new(scope: ActionScope::GLOBAL, is_generate_file: true) do |_context, result_builder|
my_file = File.open('filename.txt', 'w')
my_file.write('StringThatWillBeInTheFile')
my_file.close
result_builder.file(content: 'filename.txt', name: 'filename.txt', mime_type: 'text/plain')
end
)
end
```
### Redirections
To streamline your operation workflow, it could make sense to redirect to another page after an Action has successfully been executed.
It is possible using the `redirectTo` function.
The redirection works both for internal (`\*.forestadmin.com` pages) and external links.
{% tabs %}
{% tab title="Internal link" %}
```ruby
include ForestAdmin::Types
```
{% endtab %}
{% tab title="External link" %}
{% endtab %}
{% endtabs %}
### Webhooks
After an action you can set up an HTTP (or HTTPS) callback - a webhook - to forward information to other applications.
Note that the webhook will be triggered from the user's browser, so it will be subject to CORS restrictions.
Its intended use is often to perform a login on a third-party application or to trigger a background job on the current user's behalf.
```ruby
include ForestAdmin::Types
@create_agent.customize_collection('company') do |collection|
collection.add_action(
'Mark as live',
BaseAction.new(scope: ActionScope::SINGLE) do |_context, result_builder|
result_builder.webhook(
url: 'http://my-company-name', # The url of the company providing the service.
method: 'POST', # The method you would like to use (typically a POST).
headers: {}, # You can add some headers if needed.
body: { adminToken: 'your-admin-token' } # A body to send to the url.
)
end
)
end
```
---
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