Loops Ruby SDK

Introduction

This is the official Ruby SDK for Loops, an email platform for modern software companies.

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:

```ruby config/initializers/loops.rb require "loops_sdk"

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


```ruby
begin

  response = LoopsSdk::Transactional.send(
    transactional_id: "closfz8ui02yq......",
    email: "[email protected]",
    data_variables: {
      loginUrl: "https://app.domain.com/login?code=1234567890"
    }
  )

  render json: response

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

Handling rate limits

You can use the check for rate limit issues with your requests.

You can access details about the rate limits from the limit and remaining attributes.

begin

  response = LoopsSdk::Contacts.update(
    email: "[email protected]"
  )

  render json: response

rescue LoopsSdk::RateLimitError => e
  Rails.logger.error("Rate limit exceeded (#{e.limit} requests per second)")
  # Code here to re-try this request
rescue LoopsSdk::APIError => e
  # Handle other errors
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: "[email protected]")

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

# Updating a contact's email address using userId
response = LoopsSdk::Contacts.update(
  email: "[email protected]",
  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: "[email protected]")

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": "[email protected]",
    "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: "[email protected]")

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 and isPublic attributes.

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

[
  {
    "id": "cm06f5v0e45nf0ml5754o9cix",
    "name": "Main list",
    "isPublic": true
  },
  {
    "id": "cm16k73gq014h0mmj5b6jdi9r",
    "name": "Investors",
    "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: "[email protected]"
)

response = LoopsSdk::Events.send(
  event_name: "signup",
  email: "[email protected]",
  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: "[email protected]",
  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: "[email protected]",
  data_variables: {
    loginUrl: "https://myapp.com/login/",
  },
)

# Please contact us to enable attachments on your account.
response = LoopsSdk::Transactional.send(
  transactional_id: "clfq6dinn000yl70fgwwyp82l",
  email: "[email protected]",
  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"
  }
]

Contributing

Bug reports and pull requests are welcome. Please read our Contributing Guidelines.