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Merged
fantactuka merged 7 commits into from
Feb 9, 2026
Merged

feat(arrays): Add arrays payload support for transactional email api #13

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3862a81
feat(arrays): Add arrays payload support for transactional email api
fantactuka Jan 15, 2026
24dfd69
merge main
fantactuka Feb 5, 2026
11db359
Fixed version numbers
danrowden Feb 5, 2026
b50a551
update readme
fantactuka Feb 5, 2026
e541620
updates test
fantactuka Feb 5, 2026
e573c4c
6.2.0
fantactuka Feb 5, 2026
6adb7a8
update date
fantactuka Feb 9, 2026
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25 changes: 13 additions & 12 deletions README.md
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Expand Up @@ -621,17 +621,17 @@ Send a transactional email to a contact. [Learn about sending transactional emai

#### Parameters

| Name | Type | Required | Notes |
| --------------------------- | -------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `transactionalId` | string | Yes | The ID of the transactional email to send. |
| `email` | string | Yes | The email address of the recipient. |
| `addToAudience` | boolean | No | If `true`, a contact will be created in your audience using the `email` value (if a matching contact doesn’t already exist). |
| `dataVariables` | object | No | An object containing data as defined by the data variables added to the transactional email template.<br />Values can be of type `string` or `number`. |
| `attachments` | object[] | No | A list of attachments objects.<br />**Please note**: Attachments need to be enabled on your account before using them with the API. [Read more](https://loops.so/docs/transactional/attachments) |
| `attachments[].filename` | string | No | The name of the file, shown in email clients. |
| `attachments[].contentType` | string | No | The MIME type of the file. |
| `attachments[].data` | string | No | The base64-encoded content of the file. |
| `headers` | object | No | Additional headers to send with the request. |
| Name | Type | Required | Notes |
| --------------------------- | -------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `transactionalId` | string | Yes | The ID of the transactional email to send. |
| `email` | string | Yes | The email address of the recipient. |
| `addToAudience` | boolean | No | If `true`, a contact will be created in your audience using the `email` value (if a matching contact doesn’t already exist). |
| `dataVariables` | object | No | An object containing data as defined by the data variables added to the transactional email template.<br />Values can be of type `string`, `number`, or an array of objects with `string` or `number` values. |
| `attachments` | object[] | No | A list of attachments objects.<br />**Please note**: Attachments need to be enabled on your account before using them with the API. [Read more](https://loops.so/docs/transactional/attachments) |
| `attachments[].filename` | string | No | The name of the file, shown in email clients. |
| `attachments[].contentType` | string | No | The MIME type of the file. |
| `attachments[].data` | string | No | The base64-encoded content of the file. |
| `headers` | object | No | Additional headers to send with the request. |

#### Examples

Expand Down Expand Up @@ -770,7 +770,8 @@ const resp = await loops.getTransactionalEmails({ perPage: 15 });

## Version history

- `v6.1.0` (Jan 29, 2026) - Added `rawBody` to `APIError` in the case no JSON is received from the server (thanks to [@leipert](https://github.com/leipert)).
- `v6.2.0` (Feb 9, 2026) - Support for the new arrays feature in sendTransactionalEmail.
- `v6.1.2` (Jan 29, 2026) - Added `rawBody` to `APIError` in the case no JSON is received from the server (thanks to [@leipert](https://github.com/leipert)).
- `v6.0.1` (Oct 15, 2025) - Added `optInStatus` to contact object in [`findContact()`](#findcontact) for the new double opt-in feature.
- `v6.0.0` (Aug 22, 2025) - [`createContact()`](#createcontact) and [`updateContact()`](#updatecontact) now have a single object parameter instead of named parameters (breaking change). This allows support for using either `email` or `userId` when updating contacts.
- `v5.0.1` (May 13, 2025) - Added a `headers` parameter for [`sendEvent()`](#sendevent) and [`sendTransactionalEmail()`](#sendtransactionalemail), enabling support for the `Idempotency-Key` header.
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4 changes: 2 additions & 2 deletions package-lock.json
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2 changes: 1 addition & 1 deletion package.json
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@@ -1,6 +1,6 @@
{
"name": "loops",
"version": "6.1.2",
"version": "6.2.0",
"author": "Dan Rowden <dan@loops.so>",
"license": "MIT",
"main": "./dist/index.cjs",
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5 changes: 4 additions & 1 deletion src/__tests__/LoopsClient.test.ts
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Expand Up @@ -499,7 +499,10 @@ describe("LoopsClient", () => {
email: "test@example.com",
dataVariables: {
name: "John",
product: "Widgets",
products: [
{ name: "Widget", price: 29.99 },
{ name: "Gadget", price: 49.99 },
],
},
};
const mockResponse = { success: true };
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5 changes: 4 additions & 1 deletion src/index.ts
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Expand Up @@ -111,7 +111,10 @@ type EventProperties = Record<string, string | number | boolean>;

type MailingLists = Record<string, boolean>;

type TransactionalVariables = Record<string, string | number>;
type TransactionalVariables = Record<
string,
string | number | Array<Record<string, string | number>>
>;

interface TransactionalAttachment {
/**
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