Ruby SDK - Loops

Installation

Install the gem and add it to the application’s Gemfile like this:

bundle add loops_sdk

If bundler is not being used to manage dependencies, you can install the gem like this:

gem install loops_sdk

Usage

You will need a Loops API key to use the package.

In your Loops account, go to the API Settings page and click Generate key.

Copy this key and save it in your application code (for example, in an environment variable).

See the API documentation to learn more about rate limiting and error handling.

In an initializer, import and configure the SDK:

config/initializers/loops.rb
require "loops_sdk"

LoopsSdk.configure do |config|
  config.api_key = 'your_api_key'
end

Then you can call methods in your code:

begin

  response = LoopsSdk::Transactional.send(
    transactional_id: "closfz8ui02yq...",
    email: "dan@loops.so",
    data_variables: {
      loginUrl: "https://app.domain.com/login?code=1234567890"
    }
  )

rescue LoopsSdk::APIError => e
  # Do something if there is an error from the API
end

Default contact properties

Each contact in Loops has a set of default properties. These will always be returned in API results.

id
email
firstName
lastName
source
subscribed
userGroup
userId

Custom contact properties

You can use custom contact properties in API calls. Please make sure to add custom properties in your Loops account before using them with the SDK.

Methods

ApiKey.test()

Test if your API key is valid.

API Reference

Parameters

None

Example

response LoopsSdk::ApiKey.test

Response

This method will return a success or error message:

{
  "success": true,
  "teamName": "Company name"
}

{
  "error": "Invalid API key"
}

Contacts.create()

Create a new contact.

API Reference

Parameters

Name	Type	Required	Notes
`email`	string	Yes	If a contact already exists with this email address, an error response will be returned.
`properties`	object	No	An object containing default and any custom properties for your contact. Please add custom properties in your Loops account before using them with the SDK. Values can be of type `string`, `number`, `nil` (to reset a value), `boolean` or `date` (see allowed date formats).
`mailing_lists`	object	No	An object of mailing list IDs and boolean subscription statuses.

Examples

response = LoopsSdk::Contacts.create(email: "hello@gmail.com")

contact_properties = {
  firstName: "Bob" /* Default property */,
  favoriteColor: "Red" /* Custom property */,
};
mailing_lists = {
  cm06f5v0e45nf0ml5754o9cix: true,
  cm16k73gq014h0mmj5b6jdi9r: false,
};
response = LoopsSdk::Contacts.create(
  email: "hello@gmail.com",
  properties: contact_properties,
  mailing_lists: mailing_lists
)

Response

This method will return a success or error message:

{
  "success": true,
  "id": "id_of_contact"
}

{
  "success": false,
  "message": "An error message here."
}

Contacts.update()

Update a contact.

Note: To update a contact’s email address, the contact requires a userId value. Then you can make a request with their userId and an updated email address.

API Reference

Parameters

Name	Type	Required	Notes
`email`	string	Yes	The email address of the contact to update. If there is no contact with this email address, a new contact will be created using the email and properties in this request.
`properties`	object	No	An object containing default and any custom properties for your contact. Please add custom properties in your Loops account before using them with the SDK. Values can be of type `string`, `number`, `nil` (to reset a value), `boolean` or `date` (see allowed date formats).
`mailing_lists`	object	No	An object of mailing list IDs and boolean subscription statuses.

Example

contact_properties = {
  firstName: "Bob" /* Default property */,
  favoriteColor: "Blue" /* Custom property */,
};
response = LoopsSdk::Contacts.update(
  email: "hello@gmail.com",
  properties: contact_properties
)

# Updating a contact's email address using userId
response = LoopsSdk::Contacts.update(
  email: "newemail@gmail.com",
  properties: {
    userId: "1234",
  })

Response

This method will return a success or error message:

{
  "success": true,
  "id": "id_of_contact"
}

{
  "success": false,
  "message": "An error message here."
}

Contacts.find()

Find a contact.

API Reference

Parameters

You must use one parameter in the request.

Name	Type	Required	Notes
`email`	string	No
`user_id`	string	No

Examples

response = LoopsSdk::Contacts.find(email: "hello@gmail.com")

response = LoopsSdk::Contacts.find(user_id: "12345")

Response

This method will return a list containing a single contact object, which will include all default properties and any custom properties.

If no contact is found, an empty list will be returned.

[
  {
    "id": "cll6b3i8901a9jx0oyktl2m4u",
    "email": "hello@gmail.com",
    "firstName": "Bob",
    "lastName": null,
    "source": "API",
    "subscribed": true,
    "userGroup": "",
    "userId": "12345",
    "mailingLists": {
      "cm06f5v0e45nf0ml5754o9cix": true
    },
    "favoriteColor": "Blue" /* Custom property */
  }
]

Contacts.delete()

Delete a contact.

API Reference

Parameters

You must use one parameter in the request.

Name	Type	Required	Notes
`email`	string	No
`user_id`	string	No

Example

response = LoopsSdk::Contacts.delete(email: "hello@gmail.com")

response = LoopsSdk::Contacts.delete(user_id: "12345")

Response

This method will return a success or error message:

{
  "success": true,
  "message": "Contact deleted."
}

{
  "success": false,
  "message": "An error message here."
}

MailingLists.list()

Get a list of your account’s mailing lists. Read more about mailing lists

API Reference

Parameters

None

Example

response = LoopsSdk::MailingLists.list

Response

This method will return a list of mailing list objects containing id, name, description and isPublic attributes.

If your account has no mailing lists, an empty list will be returned.

[
  {
    "id": "cm06f5v0e45nf0ml5754o9cix",
    "name": "Main list",
    "description": "All customers.",
    "isPublic": true
  },
  {
    "id": "cm16k73gq014h0mmj5b6jdi9r",
    "name": "Investors",
    "description": null,
    "isPublic": false
  }
]

Events.send()

Send an event to trigger an email in Loops. Read more about events

API Reference

Parameters

Name	Type	Required	Notes
`event_name`	string	Yes
`email`	string	No	The contact’s email address. Required if `user_id` is not present.
`user_id`	string	No	The contact’s unique user ID. If you use `user_id` without `email`, this value must have already been added to your contact in Loops. Required if `email` is not present.
`contact_properties`	object	No	An object containing contact properties, which will be updated or added to the contact when the event is received. Please add custom properties in your Loops account before using them with the SDK. Values can be of type `string`, `number`, `nil` (to reset a value), `boolean` or `date` (see allowed date formats).
`event_properties`	object	No	An object containing event properties, which will be made available in emails that are triggered by this event. Values can be of type `string`, `number`, `boolean` or `date` (see allowed date formats).
`mailing_lists`	object	No	An object of mailing list IDs and boolean subscription statuses.

Examples

response = LoopsSdk::Events.send(
  event_name: "signup",
  email: "hello@gmail.com"
)

response = LoopsSdk::Events.send(
  event_name: "signup",
  email: "hello@gmail.com",
  event_properties: {
    username: "user1234",
    signupDate: "2024-03-21T10:09:23Z",
  },
  mailing_lists: {
    cm06f5v0e45nf0ml5754o9cix: true,
    cm16k73gq014h0mmj5b6jdi9r: false,
  },
})

# In this case with both email and userId present, the system will look for a contact with either a
#  matching `email` or `user_id` value.
# If a contact is found for one of the values (e.g. `email`), the other value (e.g. `user_id`) will be updated.
# If a contact is not found, a new contact will be created using both `email` and `user_id` values.
# Any values added in `contact_properties` will also be updated on the contact.
response = LoopsSdk::Events.send(
  event_name: "signup",
  email: "hello@gmail.com",
  user_id: "1234567890",
  contact_properties: {
    firstName: "Bob",
    plan: "pro",
  },
})

Response

This method will return a success or error:

{
  "success": true
}

{
  "success": false,
  "message": "An error message here."
}

Transactional.send()

Send a transactional email to a contact. Learn about sending transactional email

API Reference

Parameters

Name	Type	Required	Notes
`transactional_id`	string	Yes	The ID of the transactional email to send.
`email`	string	Yes	The email address of the recipient.
`add_to_audience`	boolean	No	If `true`, a contact will be created in your audience using the `email` value (if a matching contact doesn’t already exist).
`data_variables`	object	No	An object containing data as defined by the data variables added to the transactional email template. Values can be of type `string` or `number`.
`attachments`	object[]	No	A list of attachments objects. Please note: Attachments need to be enabled on your account before using them with the API. Read more
`attachments[].filename`	string	No	The name of the file, shown in email clients.
`attachments[].content_type`	string	No	The MIME type of the file.
`attachments[].data`	string	No	The base64-encoded content of the file.

Examples

response = LoopsSdk::Transactional.send(
  transactional_id: "clfq6dinn000yl70fgwwyp82l",
  email: "hello@gmail.com",
  data_variables: {
    loginUrl: "https://myapp.com/login/",
  },
)

# Please contact us to enable attachments on your account.
response = LoopsSdk::Transactional.send(
  transactional_id: "clfq6dinn000yl70fgwwyp82l",
  email: "hello@gmail.com",
  data_variables: {
    loginUrl: "https://myapp.com/login/",
  },
  attachments: [
    {
      filename: "presentation.pdf",
      content_type: "application/pdf",
      data: "JVBERi0xLjMKJcTl8uXrp/Og0MTGCjQgMCBvYmoKPD...",
    },
  ],
})

Response

This method will return a success or error message.

{
  "success": true
}

If there is a problem with the request, a descriptive error message will be returned:

{
  "success": false,
  "path": "dataVariables",
  "message": "There are required fields for this email. You need to include a 'dataVariables' object with the required fields."
}

{
  "success": false,
  "error": {
    "path": "dataVariables",
    "message": "Missing required fields: login_url"
  },
  "transactionalId": "clfq6dinn000yl70fgwwyp82l"
}

CustomFields.list()

Get a list of your account’s custom fields. These are custom properties that can be added to contacts to store extra data. Read more about contact properties

API Reference

Parameters

None

Example

response LoopsSdk::CustomFields.list

Response

This method will return a list of custom field objects containing key, label and type attributes.

If your account has no custom fields, an empty list will be returned.

[
  {
    "key": "favoriteColor",
    "label": "Favorite Color",
    "type": "string"
  },
  {
    "key": "plan",
    "label": "Plan",
    "type": "string"
  }
]

Version history

v0.1.2 (Aug 16, 2024) - Support for resetting contact properties with nil.
v0.1.1 (Aug 16, 2024) - Added ApiKey.test method for testing API keys.
v0.1.0 (Aug 16, 2024) - Initial release.

Contributing

Bug reports and pull requests are welcome on GitHub at github.com/Loops-so/loops-rb. Please read our Contributing Guidelines.

Learn

API

Guides

​Installation

​Usage

​Default contact properties

​Custom contact properties

​Methods

​ApiKey.test()

​Parameters

​Example

​Response

​Contacts.create()

​Parameters

​Examples

​Response

​Contacts.update()

​Parameters

​Example

​Response

​Contacts.find()

​Parameters

​Examples

​Response

​Contacts.delete()

​Parameters

​Example

​Response

​MailingLists.list()

​Parameters

​Example

​Response

​Events.send()

​Parameters

​Examples

​Response

​Transactional.send()

​Parameters

​Examples

​Response

​CustomFields.list()

​Parameters

​Example

​Response

​Version history

​Contributing

Installation

Usage

Default contact properties

Custom contact properties

Methods

ApiKey.test()

Parameters

Example

Response

Contacts.create()

Parameters

Examples

Response

Contacts.update()

Parameters

Example

Response

Contacts.find()

Parameters

Examples

Response

Contacts.delete()

Parameters

Example

Response

MailingLists.list()

Parameters

Example

Response

Events.send()

Parameters

Examples

Response

Transactional.send()

Parameters

Examples

Response

CustomFields.list()

Parameters

Example

Response

Version history

Contributing