Upload file

cURL

curl --request POST \
  --url https://api.maesn.dev/accounting/files \
  --header 'Content-Type: multipart/form-data' \
  --header 'X-ACCOUNT-KEY: <x-account-key>' \
  --header 'X-API-KEY: <x-api-key>' \
  --form file='@example-file' \
  --form documentType=Rechnungseingang \
  --form contactId=287a382-s35e624e5-fb9e-483 \
  --form documentDate=2021-01-01T00:00:00Z \
  --form documentId=b5e624e5-fb9e-4836-a443-87a3820f5b48 \
  --form 'integrationSource=Third party app' \
  --form 'note=Invoice 02-03-2023' \
  --form resourceId=771cb8f9-c0e9-4010-bf85-6675af290e37

import requests

url = "https://api.maesn.dev/accounting/files"

files = { "file": ("example-file", open("example-file", "rb")) }
payload = {
    "documentType": "Rechnungseingang",
    "contactId": "287a382-s35e624e5-fb9e-483",
    "documentDate": "2021-01-01T00:00:00Z",
    "documentId": "b5e624e5-fb9e-4836-a443-87a3820f5b48",
    "integrationSource": "Third party app",
    "note": "Invoice 02-03-2023",
    "resourceId": "771cb8f9-c0e9-4010-bf85-6675af290e37"
}
headers = {
    "X-API-KEY": "<x-api-key>",
    "X-ACCOUNT-KEY": "<x-account-key>"
}

response = requests.post(url, data=payload, files=files, headers=headers)

print(response.text)

const form = new FormData();
form.append('file', '<string>');
form.append('documentType', 'Rechnungseingang');
form.append('contactId', '287a382-s35e624e5-fb9e-483');
form.append('documentDate', '2021-01-01T00:00:00Z');
form.append('documentId', 'b5e624e5-fb9e-4836-a443-87a3820f5b48');
form.append('integrationSource', 'Third party app');
form.append('note', 'Invoice 02-03-2023');
form.append('resourceId', '771cb8f9-c0e9-4010-bf85-6675af290e37');

const options = {
  method: 'POST',
  headers: {'X-API-KEY': '<x-api-key>', 'X-ACCOUNT-KEY': '<x-account-key>'}
};

options.body = form;

fetch('https://api.maesn.dev/accounting/files', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.maesn.dev/accounting/files",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentType\"\r\n\r\nRechnungseingang\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"contactId\"\r\n\r\n287a382-s35e624e5-fb9e-483\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentDate\"\r\n\r\n2021-01-01T00:00:00Z\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentId\"\r\n\r\nb5e624e5-fb9e-4836-a443-87a3820f5b48\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"integrationSource\"\r\n\r\nThird party app\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"note\"\r\n\r\nInvoice 02-03-2023\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resourceId\"\r\n\r\n771cb8f9-c0e9-4010-bf85-6675af290e37\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Content-Type: multipart/form-data",
    "X-ACCOUNT-KEY: <x-account-key>",
    "X-API-KEY: <x-api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.maesn.dev/accounting/files"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentType\"\r\n\r\nRechnungseingang\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"contactId\"\r\n\r\n287a382-s35e624e5-fb9e-483\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentDate\"\r\n\r\n2021-01-01T00:00:00Z\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentId\"\r\n\r\nb5e624e5-fb9e-4836-a443-87a3820f5b48\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"integrationSource\"\r\n\r\nThird party app\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"note\"\r\n\r\nInvoice 02-03-2023\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resourceId\"\r\n\r\n771cb8f9-c0e9-4010-bf85-6675af290e37\r\n-----011000010111000001101001--")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-API-KEY", "<x-api-key>")
	req.Header.Add("X-ACCOUNT-KEY", "<x-account-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.maesn.dev/accounting/files")
  .header("X-API-KEY", "<x-api-key>")
  .header("X-ACCOUNT-KEY", "<x-account-key>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentType\"\r\n\r\nRechnungseingang\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"contactId\"\r\n\r\n287a382-s35e624e5-fb9e-483\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentDate\"\r\n\r\n2021-01-01T00:00:00Z\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentId\"\r\n\r\nb5e624e5-fb9e-4836-a443-87a3820f5b48\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"integrationSource\"\r\n\r\nThird party app\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"note\"\r\n\r\nInvoice 02-03-2023\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resourceId\"\r\n\r\n771cb8f9-c0e9-4010-bf85-6675af290e37\r\n-----011000010111000001101001--")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.maesn.dev/accounting/files")

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

request = Net::HTTP::Post.new(url)
request["X-API-KEY"] = '<x-api-key>'
request["X-ACCOUNT-KEY"] = '<x-account-key>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentType\"\r\n\r\nRechnungseingang\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"contactId\"\r\n\r\n287a382-s35e624e5-fb9e-483\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentDate\"\r\n\r\n2021-01-01T00:00:00Z\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentId\"\r\n\r\nb5e624e5-fb9e-4836-a443-87a3820f5b48\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"integrationSource\"\r\n\r\nThird party app\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"note\"\r\n\r\nInvoice 02-03-2023\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resourceId\"\r\n\r\n771cb8f9-c0e9-4010-bf85-6675af290e37\r\n-----011000010111000001101001--"

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

{
  "meta": {
    "warnings": [
      "Field not used by target system"
    ],
    "pagination": {
      "total": 125,
      "perPage": 50,
      "currentPage": 1,
      "totalPages": 3
    }
  },
  "data": {
    "id": "document id",
    "base64Encoded": true,
    "content": "content",
    "contentType": "application/pdf",
    "fileName": "invoice.pdf"
  }
}

POST

accounting

files

cURL

curl --request POST \
  --url https://api.maesn.dev/accounting/files \
  --header 'Content-Type: multipart/form-data' \
  --header 'X-ACCOUNT-KEY: <x-account-key>' \
  --header 'X-API-KEY: <x-api-key>' \
  --form file='@example-file' \
  --form documentType=Rechnungseingang \
  --form contactId=287a382-s35e624e5-fb9e-483 \
  --form documentDate=2021-01-01T00:00:00Z \
  --form documentId=b5e624e5-fb9e-4836-a443-87a3820f5b48 \
  --form 'integrationSource=Third party app' \
  --form 'note=Invoice 02-03-2023' \
  --form resourceId=771cb8f9-c0e9-4010-bf85-6675af290e37

import requests

url = "https://api.maesn.dev/accounting/files"

files = { "file": ("example-file", open("example-file", "rb")) }
payload = {
    "documentType": "Rechnungseingang",
    "contactId": "287a382-s35e624e5-fb9e-483",
    "documentDate": "2021-01-01T00:00:00Z",
    "documentId": "b5e624e5-fb9e-4836-a443-87a3820f5b48",
    "integrationSource": "Third party app",
    "note": "Invoice 02-03-2023",
    "resourceId": "771cb8f9-c0e9-4010-bf85-6675af290e37"
}
headers = {
    "X-API-KEY": "<x-api-key>",
    "X-ACCOUNT-KEY": "<x-account-key>"
}

response = requests.post(url, data=payload, files=files, headers=headers)

print(response.text)

const form = new FormData();
form.append('file', '<string>');
form.append('documentType', 'Rechnungseingang');
form.append('contactId', '287a382-s35e624e5-fb9e-483');
form.append('documentDate', '2021-01-01T00:00:00Z');
form.append('documentId', 'b5e624e5-fb9e-4836-a443-87a3820f5b48');
form.append('integrationSource', 'Third party app');
form.append('note', 'Invoice 02-03-2023');
form.append('resourceId', '771cb8f9-c0e9-4010-bf85-6675af290e37');

const options = {
  method: 'POST',
  headers: {'X-API-KEY': '<x-api-key>', 'X-ACCOUNT-KEY': '<x-account-key>'}
};

options.body = form;

fetch('https://api.maesn.dev/accounting/files', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.maesn.dev/accounting/files",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentType\"\r\n\r\nRechnungseingang\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"contactId\"\r\n\r\n287a382-s35e624e5-fb9e-483\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentDate\"\r\n\r\n2021-01-01T00:00:00Z\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentId\"\r\n\r\nb5e624e5-fb9e-4836-a443-87a3820f5b48\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"integrationSource\"\r\n\r\nThird party app\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"note\"\r\n\r\nInvoice 02-03-2023\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resourceId\"\r\n\r\n771cb8f9-c0e9-4010-bf85-6675af290e37\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Content-Type: multipart/form-data",
    "X-ACCOUNT-KEY: <x-account-key>",
    "X-API-KEY: <x-api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.maesn.dev/accounting/files"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentType\"\r\n\r\nRechnungseingang\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"contactId\"\r\n\r\n287a382-s35e624e5-fb9e-483\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentDate\"\r\n\r\n2021-01-01T00:00:00Z\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentId\"\r\n\r\nb5e624e5-fb9e-4836-a443-87a3820f5b48\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"integrationSource\"\r\n\r\nThird party app\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"note\"\r\n\r\nInvoice 02-03-2023\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resourceId\"\r\n\r\n771cb8f9-c0e9-4010-bf85-6675af290e37\r\n-----011000010111000001101001--")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-API-KEY", "<x-api-key>")
	req.Header.Add("X-ACCOUNT-KEY", "<x-account-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.maesn.dev/accounting/files")
  .header("X-API-KEY", "<x-api-key>")
  .header("X-ACCOUNT-KEY", "<x-account-key>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentType\"\r\n\r\nRechnungseingang\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"contactId\"\r\n\r\n287a382-s35e624e5-fb9e-483\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentDate\"\r\n\r\n2021-01-01T00:00:00Z\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentId\"\r\n\r\nb5e624e5-fb9e-4836-a443-87a3820f5b48\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"integrationSource\"\r\n\r\nThird party app\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"note\"\r\n\r\nInvoice 02-03-2023\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resourceId\"\r\n\r\n771cb8f9-c0e9-4010-bf85-6675af290e37\r\n-----011000010111000001101001--")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.maesn.dev/accounting/files")

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

request = Net::HTTP::Post.new(url)
request["X-API-KEY"] = '<x-api-key>'
request["X-ACCOUNT-KEY"] = '<x-account-key>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentType\"\r\n\r\nRechnungseingang\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"contactId\"\r\n\r\n287a382-s35e624e5-fb9e-483\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentDate\"\r\n\r\n2021-01-01T00:00:00Z\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"documentId\"\r\n\r\nb5e624e5-fb9e-4836-a443-87a3820f5b48\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"integrationSource\"\r\n\r\nThird party app\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"note\"\r\n\r\nInvoice 02-03-2023\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resourceId\"\r\n\r\n771cb8f9-c0e9-4010-bf85-6675af290e37\r\n-----011000010111000001101001--"

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

{
  "meta": {
    "warnings": [
      "Field not used by target system"
    ],
    "pagination": {
      "total": 125,
      "perPage": 50,
      "currentPage": 1,
      "totalPages": 3
    }
  },
  "data": {
    "id": "document id",
    "base64Encoded": true,
    "content": "content",
    "contentType": "application/pdf",
    "fileName": "invoice.pdf"
  }
}

Field support per integration

DATEV Unternehmen Online

If you’re not using the Interactive Authentication Flow, make sure the query parameter companyId is accurately populated with the appropriate company ID. You can obtain this value by using the GET Companies endpoint available under the Authentication section.

Supported request parameters:

File

required

The name of the uploaded file must include the file extension, for example invoice.pdf.

The file name must not exceed 255 characters in length.

string

The documentId field can be used to uniquely identify a document. If provided, it must be a valid GUID.

string

required

The documentType field must match one of the document types returned by the GET Document Types endpoint.

string

DATEV Rechnungswesen

Supported request parameters:

File

required

The name of the uploaded file must include the file extension, for example invoice.pdf.

The file name must not exceed 255 characters in length.

string

required

string

The documentId field can be used to uniquely identify a document. If provided, it must be a valid GUID.

string

required

The documentType field must match one of the document types returned by the GET Document Types endpoint.

string

required

The integrationSource field should be set to the name of your application integrating with DATEV.

string

Exact Online

If you’re not using the Interactive Authentication Flow, make sure the query parameter companyId is correctly populated. You can obtain this value by using the GET Companies endpoint available under the Authentication section.

Supported request parameters:

File

required

The file name must not exceed 255 characters in length.

string

The contactId field is required for the INVOICE document type.

string

required

Available options: BILL, INVOICE

Snelstart

File

required

The file name must not exceed 255 characters in length.

string

required

Available options: BILL, INVOICE

string

required

This is the id of the invoice or the bill you want to attach the file to.

Headers

X-API-KEY

string

required

API key

X-ACCOUNT-KEY

string

required

Account key

Query Parameters

companyId

string

Body

multipart/form-data

file

required

documentType

string

required

Example:

"Rechnungseingang"

contactId

string

Example:

"287a382-s35e624e5-fb9e-483"

documentDate

string

Example:

"2021-01-01T00:00:00Z"

documentId

string

Example:

"b5e624e5-fb9e-4836-a443-87a3820f5b48"

integrationSource

string

Example:

"Third party app"

note

string

Example:

"Invoice 02-03-2023"

resourceId

string

Example:

"771cb8f9-c0e9-4010-bf85-6675af290e37"

Response

200 - application/json

Get started

Guides

Integrations

Use cases

API reference

Knowledgebase

Field support per integration

Headers

Query Parameters

Body

Response

​Field support per integration

Headers

Query Parameters

Body

Response

Field support per integration