# Get invoice attachment

GET https://api-sandbox.payabli.com/api/Invoice/attachedFileFromInvoice/{idInvoice}/{filename}

Retrieves a file attached to an invoice.

Reference: https://docs.payabli.com/developers/api-reference/invoice/get-attached-file-from-an-invoice

## OpenAPI Specification

```yaml
openapi: 3.1.1
info:
  title: Get attached file from an invoice
  version: endpoint_invoice.GetAttachedFileFromInvoice
paths:
  /Invoice/attachedFileFromInvoice/{idInvoice}/{filename}:
    get:
      operationId: get-attached-file-from-invoice
      summary: Get attached file from an invoice
      description: Retrieves a file attached to an invoice.
      tags:
        - - subpackage_invoice
      parameters:
        - name: idInvoice
          in: path
          description: Invoice ID
          required: true
          schema:
            type: integer
        - name: filename
          in: path
          description: >-
            The filename in Payabli. Filename is `zipName` in the response to a
            request to `/api/Invoice/{idInvoice}`. Here, the filename is
            `0_Bill.pdf``. 

            ```
              "DocumentsRef": {
                "zipfile": "inva_269.zip",
                "filelist": [
                  {
                    "originalName": "Bill.pdf",
                    "zipName": "0_Bill.pdf",
                    "descriptor": null
                  }
                ]
              }
              ```
          required: true
          schema:
            type: string
        - name: returnObject
          in: query
          description: >-
            When `true`, the request returns the file content as a
            Base64-encoded string.
          required: false
          schema:
            type: boolean
            default: false
        - name: requestToken
          in: header
          required: true
          schema:
            type: string
      responses:
        '200':
          description: >-
            A successful response returns a binary file when `returnObject` is
            `false`. When `returnObject` is `true`, the response contains the
            file content as a Base64-encoded string in an object. Due to
            technical limitations, only the object response is documented here.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/type_:FileContent'
        '400':
          description: Bad request/ invalid data
          content: {}
        '401':
          description: Unauthorized request.
          content: {}
        '500':
          description: Internal API Error
          content: {}
        '503':
          description: Database connection error
          content: {}
components:
  schemas:
    type_:FileContentFtype:
      type: string
      enum:
        - value: pdf
        - value: doc
        - value: docx
        - value: jpg
        - value: jpeg
        - value: png
        - value: gif
        - value: txt
    type_:FileContent:
      type: object
      properties:
        fContent:
          type: string
          description: >-
            Content of file, Base64-encoded. Ignored if furl is specified. Max
            upload size is 30 MB.
        filename:
          type: string
          description: The name of the attached file.
        ftype:
          $ref: '#/components/schemas/type_:FileContentFtype'
          description: The MIME type of the file (if content is provided)
        furl:
          type: string
          description: Optional URL provided to show or download the file remotely

```

## SDK Code Examples

```python
from payabli import payabli

client = payabli(
    api_key="YOUR_API_KEY",
)
client.invoice.get_attached_file_from_invoice(
    id_invoice=1,
    filename="filename",
)

```

```typescript
import { PayabliClient } from "@payabli/sdk-node";

const client = new PayabliClient({ apiKey: "YOUR_API_KEY" });
await client.invoice.getAttachedFileFromInvoice(1, "filename");

```

```go
import (
	context "context"
	option "github.com/payabli/sdk-go/option"
	sdkgo "github.com/payabli/sdk-go"
	sdkgoclient "github.com/payabli/sdk-go/client"
)

client := sdkgoclient.NewClient(
	option.WithApiKey(
		"<YOUR_ApiKey>",
	),
)
response, err := client.Invoice.GetAttachedFileFromInvoice(
	context.TODO(),
	1,
	"filename",
	&sdkgo.GetAttachedFileFromInvoiceRequest{},
)

```

```csharp
using PayabliApi;

var client = new PayabliApiClient("API_KEY");
await client.Invoice.GetAttachedFileFromInvoiceAsync(
    1,
    "filename",
    new GetAttachedFileFromInvoiceRequest()
);

```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api-sandbox.payabli.com/api/Invoice/attachedFileFromInvoice/1/filename")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["requestToken"] = '<apiKey>'

response = http.request(request)
puts response.read_body
```

```java
HttpResponse<String> response = Unirest.get("https://api-sandbox.payabli.com/api/Invoice/attachedFileFromInvoice/1/filename")
  .header("requestToken", "<apiKey>")
  .asString();
```

```php
<?php

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api-sandbox.payabli.com/api/Invoice/attachedFileFromInvoice/1/filename', [
  'headers' => [
    'requestToken' => '<apiKey>',
  ],
]);

echo $response->getBody();
```

```swift
import Foundation

let headers = ["requestToken": "<apiKey>"]

let request = NSMutableURLRequest(url: NSURL(string: "https://api-sandbox.payabli.com/api/Invoice/attachedFileFromInvoice/1/filename")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```