Open cash register
curl --request POST \
--url https://api.filexpress.app/api/external/v1/cash-registers/open \
--header 'Content-Type: application/json' \
--header 'X-API-Key: <api-key>' \
--data '
{
"branch_id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"user_id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"point_of_sale_id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"opening_amount": 100,
"notes": "Turno mañana"
}
'const options = {
method: 'POST',
headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
body: JSON.stringify({
branch_id: '3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01',
user_id: '3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01',
point_of_sale_id: '3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01',
opening_amount: 100,
notes: 'Turno mañana'
})
};
fetch('https://api.filexpress.app/api/external/v1/cash-registers/open', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));import requests
url = "https://api.filexpress.app/api/external/v1/cash-registers/open"
payload = {
"branch_id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"user_id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"point_of_sale_id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"opening_amount": 100,
"notes": "Turno mañana"
}
headers = {
"X-API-Key": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.filexpress.app/api/external/v1/cash-registers/open",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'branch_id' => '3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01',
'user_id' => '3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01',
'point_of_sale_id' => '3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01',
'opening_amount' => 100,
'notes' => 'Turno mañana'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"X-API-Key: <api-key>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}{
"status": true,
"data": {
"id": "9d1c5a3e-4b7f-4e2a-9c1d-2f6b8a0e7c11",
"branch_id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"point_of_sale": {
"id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"code": "P001",
"name": "Caja principal"
},
"opened_by_user": {
"id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"name": "Ana Martínez"
},
"closed_by_user": null,
"status": "open",
"cashier": {
"id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"name": "Ana Martínez"
},
"opening_date": "2026-10-06T08:00:00-06:00",
"closing_date": null,
"opening_amount": 100,
"declared_amount": null,
"difference_amount": null,
"total_sales": null,
"total_cash_sales": null,
"total_card_sales": null,
"total_other_sales": null,
"total_expenses": null,
"total_other_incomes": null,
"notes": null,
"opened_by": "API: Mi POS",
"closed_by": null
}
}Open cash register
Opens the branch’s cash register for a cashier (user_id, a FileXpress user with access to the branch). One open shift per point of sale: point_of_sale_id is required if the branch has more than one active point of sale. user_id is recorded as the opener (opened_by_user).
Required permission: cash_register.operate
POST
/
cash-registers
/
open
Open cash register
curl --request POST \
--url https://api.filexpress.app/api/external/v1/cash-registers/open \
--header 'Content-Type: application/json' \
--header 'X-API-Key: <api-key>' \
--data '
{
"branch_id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"user_id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"point_of_sale_id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"opening_amount": 100,
"notes": "Turno mañana"
}
'const options = {
method: 'POST',
headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
body: JSON.stringify({
branch_id: '3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01',
user_id: '3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01',
point_of_sale_id: '3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01',
opening_amount: 100,
notes: 'Turno mañana'
})
};
fetch('https://api.filexpress.app/api/external/v1/cash-registers/open', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));import requests
url = "https://api.filexpress.app/api/external/v1/cash-registers/open"
payload = {
"branch_id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"user_id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"point_of_sale_id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"opening_amount": 100,
"notes": "Turno mañana"
}
headers = {
"X-API-Key": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.filexpress.app/api/external/v1/cash-registers/open",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'branch_id' => '3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01',
'user_id' => '3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01',
'point_of_sale_id' => '3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01',
'opening_amount' => 100,
'notes' => 'Turno mañana'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"X-API-Key: <api-key>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}{
"status": true,
"data": {
"id": "9d1c5a3e-4b7f-4e2a-9c1d-2f6b8a0e7c11",
"branch_id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"point_of_sale": {
"id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"code": "P001",
"name": "Caja principal"
},
"opened_by_user": {
"id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"name": "Ana Martínez"
},
"closed_by_user": null,
"status": "open",
"cashier": {
"id": "3b8e2f10-7c4d-4a9e-b1f2-5d6c7e8f9a01",
"name": "Ana Martínez"
},
"opening_date": "2026-10-06T08:00:00-06:00",
"closing_date": null,
"opening_amount": 100,
"declared_amount": null,
"difference_amount": null,
"total_sales": null,
"total_cash_sales": null,
"total_card_sales": null,
"total_other_sales": null,
"total_expenses": null,
"total_other_incomes": null,
"notes": null,
"opened_by": "API: Mi POS",
"closed_by": null
}
}Authorizations
Integration API Key (Integrations → New Integration).
Headers
Optional. Unique key per operation (max. 100 characters, valid for 24 h per integration). A retry with the same key and the same body returns the original response (header Idempotent-Replayed: true) without repeating the operation; with a different body, or while the first is still in progress, it returns 409.
Maximum string length:
100Body
application/json