> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mayar.id/llms.txt
> Use this file to discover all available pages before exploring further.

# Register Credit Usage Customer

> Endpoint to register a new customer for a credit-usage product.

<RequestExample>
  ```bash Request Example theme={null}
  curl --request POST 'https://api.mayar.id/hl/v2/credit/credit-usage/customer/regist' \
  --header 'Authorization: Bearer Paste-Your-API-Key-Here' \
  --header 'Content-Type: application/json' \
  --data-raw '{
      "productId": "7c9d2e1f-4a5b-4c6d-8e9f-0a1b2c3d4e5f",
      "customerInfo": {
          "name": "Budi Santoso",
          "email": "budi.santoso@example.com",
          "mobile": "081234567890"
      },
      "trialCredit": 25000
  }'
  ```
</RequestExample>

<ResponseExample>
  ```json Response Example 201 theme={null}
  {
      "statusCode": 201,
      "message": "success",
      "data": {
          "customerId": "a1b2c3d4-e5f6-4789-a012-3456789abcde",
          "customerName": "Budi Santoso",
          "customerEmail": "budi.santoso@example.com",
          "customerBalance": 25000,
          "checkoutLink": "https://web.mayar.id/pl/checkout?product=7c9d2e1f-4a5b-4c6d-8e9f-0a1b2c3d4e5f&customer=a1b2c3d4"
      }
  }
  ```
</ResponseExample>

Endpoint:

<CodeGroup>
  ```Production Production theme={null}
  https://api.mayar.id/hl/v2/credit/credit-usage/customer/regist
  ```

  ```Sandbox Sandbox theme={null}
  https://api.mayar.club/hl/v2/credit/credit-usage/customer/regist
  ```
</CodeGroup>

## Authorization

<ResponseField name="Authorization" type="string" required>
  Example:

  `Authorization | Bearer Paste-Your-API-Key-Here`
</ResponseField>

## Request Body

<ParamField body="productId" type="string" required>
  The unique identifier of the credit-usage product.
</ParamField>

<ParamField body="customerInfo" type="object" required>
  The customer's contact details.
</ParamField>

<ParamField body="customerInfo.name" type="string" required>
  The customer's full name.
</ParamField>

<ParamField body="customerInfo.email" type="string" required>
  The customer's email address.
</ParamField>

<ParamField body="customerInfo.mobile" type="string" required>
  The customer's mobile phone number.
</ParamField>

<ParamField body="trialCredit" type="integer">
  Optional trial credit amount to grant to the customer upon registration.
</ParamField>

## Response

Successful Response — HTTP `201`

### Main Structure (Root)

<ResponseField name="statusCode" type="integer">
  Status code from the API. `201` on successful registration.
</ResponseField>

<ResponseField name="message" type="string">
  Status message (singular — write endpoints use `message`).
</ResponseField>

<ResponseField name="data" type="object">
  The registration result containing customer details, balance, and checkout link.
</ResponseField>

<ResponseField name="data.customerId" type="string<uuid>">
  The unique identifier of the created or existing customer.
</ResponseField>

<ResponseField name="data.customerName" type="string">
  The customer's full name.
</ResponseField>

<ResponseField name="data.customerEmail" type="string">
  The customer's email address.
</ResponseField>

<ResponseField name="data.customerBalance" type="integer">
  The customer's initial credit balance (including trial credit if granted).
</ResponseField>

<ResponseField name="data.checkoutLink" type="string">
  The checkout URL for the customer to purchase additional credit.
</ResponseField>

## Errors

<ResponseField name="400 Validation Error" type="object">
  Returned when the request body fails validation.
</ResponseField>

<ResponseField name="400 Customer already exists" type="object">
  Returned when a customer with this email already has a paid transaction on this product.
</ResponseField>