# Get an attachment of an invoice reply API Reference Returns the attachment with a temporary `download_url` for its file. BeeL. does not store the file: the link is requested when you call this operation and stays valid for about an hour, so call it again for a fresh one rather than keeping it. `download_url` and `download_url_expires_at` are `null` when there is no file to download: the attachment was registered with `POST .../invoice-replies`, or its file is no longer available (see `file_expires_at`). ## GET /v1/companies/{company_id}/invoice-replies/{reply_id}/attachments/{attachment_id} **Get an attachment of an invoice reply** Returns the attachment with a temporary `download_url` for its file. BeeL. does not store the file: the link is requested when you call this operation and stays valid for about an hour, so call it again for a fresh one rather than keeping it. `download_url` and `download_url_expires_at` are `null` when there is no file to download: the attachment was registered with `POST .../invoice-replies`, or its file is no longer available (see `file_expires_at`). ### Authentication Accepts any of: - `ApiKeyAuth` (HTTP bearer, token format `beel_sk_*`) ### Parameters - **company_id** (required) in path `string`: Unique identifier (UUID) of the company the operation acts on: its identifier, not its NIF. It is the only source of context: the account that owns it is derived from it, and the `BeeL-Active-Company` header plays no part. A company you do not reach answers `403`, and so does a company that does not exist, so the existence of a company in another account is never disclosed. - **reply_id** (required) in path `string`: Unique identifier (UUID) of the reply, as returned by the list or by `POST .../invoice-replies`. - **attachment_id** (required) in path `string`: Unique identifier (UUID) of the attachment, as returned in `attachments` by the reply. ### Responses #### 200: The attachment, with its download link when there is a file. **Content `application/json`:** - **success** (required) `boolean`: No description (example: true) - **data** (required): The payload. An object for a single resource; an object holding the named collection (and its `pagination`) for a listing. Never a bare array at this level in v1. - **meta** `ResponseMeta` - **data** (required) `InvoiceReplyAttachmentDetail`: An attachment of the reply with a temporary link to download its file. #### 401: Missing or invalid authentication. Like every other error, `message`/`detail` is localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English when the header is missing or asks for none of those. **Content `application/json`:** - **success** (required) `boolean`: No description (example: false) - **error** (required) `ErrorDetail` - **meta** `ResponseMeta` - **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES") - **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES") - **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line") - **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123") **Example:** ```json { "success": false, "error": { "code": "UNAUTHORIZED", "message": "Authentication is required to access this resource" }, "meta": { "timestamp": "2025-01-15T10:30:00Z", "request_id": "4bf92f3577b34da6a3ce929d0e0e4736" } } ``` #### 403: One of: - `ACTIVE_COMPANY_NOT_ACCESSIBLE`: your account does not own or manage this company. - `INSUFFICIENT_SCOPE`: the credential lacks `invoice-replies:read`, a privileged scope that a key created without selecting scopes does not hold. **Content `application/json`:** - **success** (required) `boolean`: No description (example: false) - **error** (required) `ErrorDetail` - **meta** `ResponseMeta` - **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES") - **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES") - **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line") - **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123") #### 404: One of: - `INVOICE_REPLY_NOT_FOUND`: the reply does not exist or belongs to another company or environment. - `INVOICE_REPLY_ATTACHMENT_NOT_FOUND`: the reply has no attachment with that identifier, or it has been erased. **Content `application/json`:** - **success** (required) `boolean`: No description (example: false) - **error** (required) `ErrorDetail` - **meta** `ResponseMeta` - **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES") - **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES") - **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line") - **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123") #### 429: Rate limit exceeded. `RATE_LIMIT_EXCEEDED` when the request rate of your credential is over its limit; `TOO_MANY_REQUESTS` when an email the operation sends is held back because too many went out to that recipient in a short time. Either way, retry after the `Retry-After` seconds. `QUOTA_EXCEEDED` is the other `429`: the operation would go over a quota of your plan for the current period (issued invoices, for instance). Retrying does not help until the quota resets or the plan changes. `error.details` carries `feature_code`, `current_usage`, `quota_limit` and `reset_date`, and `RateLimit-Reset` the seconds until the reset when it is known. **Headers:** - `Retry-After` `integer`: Seconds until the rate limit resets - `RateLimit-Limit` `integer`: Maximum requests allowed in the window - `RateLimit-Remaining` `integer`: Remaining requests in the current window - `RateLimit-Reset` `integer`: Seconds until the current window resets **Content `application/json`:** - **success** (required) `boolean`: No description (example: false) - **error** (required) `ErrorDetail` - **meta** `ResponseMeta` - **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES") - **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES") - **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line") - **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123") **Example:** ```json { "success": false, "error": { "code": "RATE_LIMIT_EXCEEDED", "message": "Too many requests. Please try again in 60 seconds." }, "meta": { "timestamp": "2025-01-15T10:30:00Z", "request_id": "4bf92f3577b34da6a3ce929d0e0e4736" } } ``` #### 500: Internal server error **Content `application/json`:** - **success** (required) `boolean`: No description (example: false) - **error** (required) `ErrorDetail` - **meta** `ResponseMeta` - **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES") - **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES") - **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line") - **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123") **Example:** ```json { "success": false, "error": { "code": "INTERNAL_ERROR", "message": "Internal server error" }, "meta": { "timestamp": "2025-01-15T10:30:00Z", "request_id": "4bf92f3577b34da6a3ce929d0e0e4736" } } ``` #### 502: `EXTERNAL_SERVICE_ERROR` — the download link could not be requested from the email service. It is transient; repeat the request later. **Content `application/json`:** - **success** (required) `boolean`: No description (example: false) - **error** (required) `ErrorDetail` - **meta** `ResponseMeta` - **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES") - **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES") - **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line") - **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123") #### default: Any status code the operation does not list above. Every operation declares it, so a generated client always has a branch to fall into and never loses the cause of a failure it did not anticipate. This is where the transport-level answers land — `405`, `406`, `415` and `429` — together with any status a future version of the API starts returning. All of them carry the same error envelope as the codes listed explicitly, so `error.code` is what tells them apart: switching on the status code alone is not enough. See «Transport-level errors» in the API description for when each one is produced. A `402` carrying `SUBSCRIPTION_REQUIRED` lands here when the account has no active subscription. `error.details` says why and what to do: `current_status` (absent if it never had one), `required_permission` and `action`. A `503` carrying `SERVICE_UNAVAILABLE` lands here too, with a `Retry-After` header: a dependency of BeeL itself (the database, the email provider) was momentarily unavailable and nothing was done. Retry after those seconds. A `502` carrying `EXTERNAL_SERVICE_ERROR` also lands here: an outbound integration the operation depends on failed or did not answer in time. It is a transient condition — retry with the same `Idempotency-Key` where the operation accepts one. One exception to the envelope: a failure of the network edge that never reaches the application (`502`, `503`, `504`, `524`) is generated by Cloudflare and its body is not BeeL's — it may not even be JSON. Treat those as "no answer", and retry. **Content `application/json`:** - **success** (required) `boolean`: No description (example: false) - **error** (required) `ErrorDetail` - **meta** `ResponseMeta` - **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES") - **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES") - **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line") - **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123") **Example:** ```json { "success": false, "error": { "code": "UNSUPPORTED_MEDIA_TYPE", "message": "Unsupported media type: text/plain. Supported: application/json" }, "meta": { "timestamp": "2025-01-15T10:30:00Z", "request_id": "4bf92f3577b34da6a3ce929d0e0e4736" } } ``` --- # Related Schema Definitions ## InvoiceReplyAttachmentResponse - **success** (required) `boolean`: No description (example: true) - **data** (required): The payload. An object for a single resource; an object holding the named collection (and its `pagination`) for a listing. Never a bare array at this level in v1. - **meta** `ResponseMeta` - **data** (required) `InvoiceReplyAttachmentDetail`: An attachment of the reply with a temporary link to download its file. ## SuccessResponse The envelope every successful JSON response of the BeeL. API is wrapped in. There are no bare resources in v1 and none are planned: the payload always hangs off `data`. - A **single resource** is an object in `data`. - A **collection** hangs off a named key inside `data`, together with its `pagination`, also inside `data` — `data: {invoices: [...], pagination: {...}}`. - A collection carries `pagination` unless its operation declares itself a **closed catalogue**: a fixed, bounded list with nothing to page through. The declaration is explicit in the operation; a missing `pagination` is never something to infer. - `GET /v1/accounts` pages by cursor (`data: {accounts: [...], next_cursor}`). It is a documented variant of pagination, not another envelope. Putting the array straight into `data` with `pagination` as its sibling is the shape a v2 would adopt; v1 is not being flipped to it. - **success** (required) `boolean`: No description (example: true) - **data** (required): The payload. An object for a single resource; an object holding the named collection (and its `pagination`) for a listing. Never a bare array at this level in v1. - **meta** `ResponseMeta` ## ResponseMeta - **timestamp** `string` (date-time): No description (example: "2025-01-15T10:30:00Z") - **request_id** `string`: No description (example: "4bf92f3577b34da6a3ce929d0e0e4736") ## InvoiceReplyAttachmentDetail An attachment of the reply with a temporary link to download its file. - **id** (required) `string` (uuid): Identifier of the attachment, stable across reads. (example: "5b0e2c7a-91d4-4f3e-8a6b-2c1d9e0f7a34") - **url** (required) `string` (uri-reference): Relative URL of the attachment resource. Relative to the API base URL (e.g., https://app.beel.es/api). Note it is a link to a link: reading it returns a temporary download link, or `download_url: null` when there is no file or it has expired. (example: "/v1/companies/9f1c2d3e-4a5b-6c7d-8e9f-0a1b2c3d4e5f/invoice-replies/3f0c9a1e-6b2d-4c8f-a1e5-7d9b0c2e4f61/attachments/5b0e2c7a-91d4-4f3e-8a6b-2c1d9e0f7a34") - **file_expires_at** (required) `string` (date-time): Estimate of when the file stops being available. `null` when the attachment has no downloadable file, as with those registered with `POST .../invoice-replies`. (example: "2026-11-18T10:15:00Z") - **content_type** (required) `string`: Media type declared by the channel. (example: "application/pdf") - **size_bytes** (required) `integer` (int64): Size of the file; `null` when the channel does not report it. (example: 48213) - **filename** (required) `string`: Name of the file; `null` when the channel gives none, as with a photo. (example: "justificante-transferencia.pdf") - **download_url** (required) `string` (uri): Temporary link to the file. `null` when there is no file to download or it is no longer available. (example: "https://files.example.com/attachments/5b0e2c7a/justificante-transferencia.pdf?signature=abc123") - **download_url_expires_at** (required) `string` (date-time): When `download_url` stops working, about an hour after the request. `null` with it. (example: "2026-11-09T11:15:00Z") ## ErrorResponse Error response shared by all BeeL. APIs. The payload carries **two contracts at once** (additive, non-breaking): - **Legacy** (`success`, `error.{code,message,details}`, `meta`) — kept intact for existing consumers. - **RFC 9457** (`type`, `title`, `detail`, `instance`) — new fields for integrators following Problem Details for HTTP APIs. The `type` URI is the stable, shareable link to the error's documentation page (e.g. `https://docs.beel.es/errors/{code}`). Future migration: the legacy fields will be deprecated via `Deprecation`/`Sunset` headers after a sufficient adoption window, and the response Content-Type will move to `application/problem+json`. - **success** (required) `boolean`: No description (example: false) - **error** (required) `ErrorDetail` - **meta** `ResponseMeta` - **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES") - **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES") - **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line") - **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123") ## ErrorDetail - **code** (required) `string`: No description (example: "VALIDATION_ERROR") - **message** (required) `string`: No description (example: "The provided data is not valid") - **details** `object`: No description (example: {"field":"specific error message"}) ## InvoiceReplyAttachment An attachment of the reply, with its file name. - **id** (required) `string` (uuid): Identifier of the attachment, stable across reads. (example: "5b0e2c7a-91d4-4f3e-8a6b-2c1d9e0f7a34") - **url** (required) `string` (uri-reference): Relative URL of the attachment resource. Relative to the API base URL (e.g., https://app.beel.es/api). Note it is a link to a link: reading it returns a temporary download link, or `download_url: null` when there is no file or it has expired. (example: "/v1/companies/9f1c2d3e-4a5b-6c7d-8e9f-0a1b2c3d4e5f/invoice-replies/3f0c9a1e-6b2d-4c8f-a1e5-7d9b0c2e4f61/attachments/5b0e2c7a-91d4-4f3e-8a6b-2c1d9e0f7a34") - **file_expires_at** (required) `string` (date-time): Estimate of when the file stops being available. `null` when the attachment has no downloadable file, as with those registered with `POST .../invoice-replies`. (example: "2026-11-18T10:15:00Z") - **content_type** (required) `string`: Media type declared by the channel. (example: "application/pdf") - **size_bytes** (required) `integer` (int64): Size of the file; `null` when the channel does not report it. (example: 48213) - **filename** (required) `string`: Name of the file; `null` when the channel gives none, as with a photo. (example: "justificante-transferencia.pdf") ## InvoiceReplyAttachmentSummary An attachment of the reply. BeeL. does not store the file: a temporary download link is requested when you read the attachment at its `url`. - **id** (required) `string` (uuid): Identifier of the attachment, stable across reads. (example: "5b0e2c7a-91d4-4f3e-8a6b-2c1d9e0f7a34") - **url** (required) `string` (uri-reference): Relative URL of the attachment resource. Relative to the API base URL (e.g., https://app.beel.es/api). Note it is a link to a link: reading it returns a temporary download link, or `download_url: null` when there is no file or it has expired. (example: "/v1/companies/9f1c2d3e-4a5b-6c7d-8e9f-0a1b2c3d4e5f/invoice-replies/3f0c9a1e-6b2d-4c8f-a1e5-7d9b0c2e4f61/attachments/5b0e2c7a-91d4-4f3e-8a6b-2c1d9e0f7a34") - **file_expires_at** (required) `string` (date-time): Estimate of when the file stops being available. `null` when the attachment has no downloadable file, as with those registered with `POST .../invoice-replies`. (example: "2026-11-18T10:15:00Z") - **content_type** (required) `string`: Media type declared by the channel. (example: "application/pdf") - **size_bytes** (required) `integer` (int64): Size of the file; `null` when the channel does not report it. (example: 48213) --- Full OpenAPI spec: https://docs.beel.es/api/openapi