> ## Documentation Index
> Fetch the complete documentation index at: https://fastpay-mintlify-983ed565.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Update a product

> Updates a product. All fields are optional; omitted fields are left
unchanged. Price changes do not affect charges already created.



## OpenAPI

````yaml /api-reference/openapi.yaml put /v1/products/{id}
openapi: 3.0.0
info:
  title: FastPay API
  version: 1.0.0
  description: >-
    API for creating and managing payment charges.


    ## Authentication


    This API uses **Basic Authentication** for direct API access, such as
    creating charges.

    Use your API key as the username and an empty string as password.

    The header should be formatted as:


    `Authorization: Basic {base64(apiKey:)}`.


    For example:


    ```

    Authorization: Basic YWxleG91dG9uOiIi

    ```


    ## Webhooks


    FastPay sends webhooks to notify your application about charge status
    changes in real-time.

    Webhooks are sent via HTTP POST requests to your configured webhook
    endpoints.


    ### Webhook Events


    The following webhook events are available for charges:


    - `charge.created` - Sent when a new charge is created

    - `charge.pending` - Sent when a charge is pending payment

    - `charge.paid` - Sent when a charge is successfully paid

    - `charge.updated` - Sent when a charge is updated


    ### Webhook Payload Structure


    All webhook payloads follow this structure:


    ```json

    {
      "id": "webhook_event_id",
      "event": "charge.paid",
      "data": {
        // Complete charge object
      }
    }

    ```


    ### Webhook Delivery


    - Webhooks are sent via HTTP POST requests

    - Content-Type: `application/json`

    - Retry logic is implemented for failed deliveries

    - Webhook events are stored in the database for audit purposes

    - Delivery logs are maintained for debugging and monitoring


    ### Webhook Security


    - Webhooks are sent to pre-configured endpoints

    - Endpoints can be enabled/disabled per merchant

    - Event filtering is supported (only receive specific events)

    - Failed deliveries are retried with exponential backoff
servers:
  - url: https://api-global.fastpaybrasil.com
    description: Produção e Sandbox (diferenciados pela API key)
security: []
paths:
  /v1/products/{id}:
    put:
      tags:
        - Products
      summary: Update a product
      description: |-
        Updates a product. All fields are optional; omitted fields are left
        unchanged. Price changes do not affect charges already created.
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UpdateProduct'
      responses:
        '204':
          description: Product updated
        '404':
          description: Product not found
      security:
        - basic: []
components:
  schemas:
    UpdateProduct:
      type: object
      description: |-
        Patch payload for a product. All fields are optional; omit a field to
        leave it unchanged.
      properties:
        name:
          type: string
          maxLength: 255
        description:
          type: string
        productLink:
          type: string
        price:
          type: number
          minimum: 0
        currency:
          type: string
        productType:
          type: string
          enum:
            - physical
            - digital
        sku:
          type: string
          maxLength: 64
        trackStock:
          type: boolean
        stock:
          type: integer
          minimum: 0
        weight:
          type: number
          minimum: 0
        heightCm:
          type: number
          minimum: 0
        widthCm:
          type: number
          minimum: 0
        lengthCm:
          type: number
          minimum: 0
  securitySchemes:
    basic:
      type: http
      scheme: basic
      description: |-
        HTTP Basic authentication. Use your secret key as the
        username and an empty string as password. The API key
        should be base64 encoded in the format 'username:' when
        sending the Authorization header.

````