Check-in lists

Resource description

You can create check-in lists that you can use e.g. at the entrance of your event to track who is coming and if they actually bought a ticket.

You can create multiple check-in lists to separate multiple parts of your event, for example if you have separate entries for multiple ticket types. Different check-in lists are completely independent: If a ticket shows up on two lists, it is valid once on every list. This might be useful if you run a festival with festival passes that allow access to every or multiple performances as well as tickets only valid for single performances.

The check-in list resource contains the following public fields:

Field

Type

Description

id

integer

Internal ID of the check-in list

name

string

The internal name of the check-in list

all_products

boolean

If true, the check-in lists contains tickets of all products in this event. The limit_products field is ignored in this case.

limit_products

list of integers

List of item IDs to include in this list.

subevent

integer

ID of the date inside an event series this list belongs to (or null).

position_count

integer

Number of tickets that match this list (read-only).

checkin_count

integer

Number of check-ins performed on this list (read-only).

include_pending

boolean

If true, the check-in list also contains tickets from orders in pending state.

auto_checkin_sales_channels

list of strings

All items on the check-in list will be automatically marked as checked-in when purchased through any of the listed sales channels.

allow_multiple_entries

boolean

If true, subsequent scans of a ticket on this list should not show a warning but instead be stored as an additional check-in.

allow_entry_after_exit

boolean

If true, subsequent scans of a ticket on this list are valid if the last scan of the ticket was an exit scan.

rules

object

Custom check-in logic. The contents of this field are currently not considered a stable API and modifications through the API are highly discouraged.

exit_all_at

datetime

Automatically check out (i.e. perform an exit scan) at this point in time. After this happened, this property will automatically be set exactly one day into the future. Note that this field is considered “internal configuration” and if you pull the list with If-Modified-Since, the daily change in this field will not trigger a response.

addon_match

boolean

If true, tickets on this list can be redeemed by scanning their parent ticket if this still leads to an unambiguous match.

ignore_in_statistics

boolean

If true, check-ins on this list will be ignored in most reporting features.

consider_tickets_used

boolean

If true (default), tickets checked in on this list will be considered “used” by other functionality, i.e. when checking if they can still be canceled.

Changed in version 4.12: The addon_match attribute has been added.

Changed in version 2023.9: The ignore_in_statistics and consider_tickets_used attributes have been added.

Endpoints

GET /api/v1/organizers/(organizer)/events/(event)/checkinlists/

Returns a list of all check-in lists within a given event.

Example request:

GET /api/v1/organizers/bigevents/events/sampleconf/checkinlists/ HTTP/1.1
Host: pretix.eu
Accept: application/json, text/javascript

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: application/json

{
  "count": 1,
  "next": null,
  "previous": null,
  "results": [
    {
      "id": 1,
      "name": "Default list",
      "checkin_count": 123,
      "position_count": 456,
      "all_products": true,
      "limit_products": [],
      "include_pending": false,
      "subevent": null,
      "allow_multiple_entries": false,
      "allow_entry_after_exit": true,
      "exit_all_at": null,
      "rules": {},
      "addon_match": false,
      "auto_checkin_sales_channels": [
        "pretixpos"
      ]
    }
  ]
}
Query Parameters:

  • page (integer) – The page number in case of a multi-page result set, default is 1

  • subevent (integer) – Only return check-in lists of the sub-event with the given ID

  • subevent_match (integer) – Only return check-in lists that are valid for the sub-event with the given ID (i.e. also lists valid for all subevents)

  • ends_after (string) – Exclude all check-in lists attached to a sub-event that is already in the past at the given time.

  • expand (string) – Expand a field into a full object. Currently only subevent is supported. Can be passed multiple times.

  • exclude (string) – Exclude a field from the output, e.g. checkin_count. Can be used as a performance optimization. Can be passed multiple times.

  • ordering (string) – Manually set the ordering of results. Valid fields to be used are id, name, and subevent__date_from, Default: subevent__date_from,name

Parameters:

  • organizer – The slug field of the organizer to fetch

  • event – The slug field of the event to fetch

Status Codes:

  • 200 OK – no error

  • 401 Unauthorized – Authentication failure

  • 403 Forbidden – The requested organizer/event does not exist or you have no permission to view this resource.

GET /api/v1/organizers/(organizer)/events/(event)/checkinlists/(id)/

Returns information on one check-in list, identified by its ID.

Example request:

GET /api/v1/organizers/bigevents/events/sampleconf/checkinlists/1/ HTTP/1.1
Host: pretix.eu
Accept: application/json, text/javascript

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: application/json

{
  "id": 1,
  "name": "Default list",
  "checkin_count": 123,
  "position_count": 456,
  "all_products": true,
  "limit_products": [],
  "include_pending": false,
  "subevent": null,
  "allow_multiple_entries": false,
  "allow_entry_after_exit": true,
  "exit_all_at": null,
  "rules": {},
  "addon_match": false,
  "auto_checkin_sales_channels": [
    "pretixpos"
  ]
}
Parameters:

  • organizer – The slug field of the organizer to fetch

  • event – The slug field of the event to fetch

  • id – The id field of the check-in list to fetch

Status Codes:

  • 200 OK – no error

  • 401 Unauthorized – Authentication failure

  • 403 Forbidden – The requested organizer/event does not exist or you have no permission to view this resource.

GET /api/v1/organizers/(organizer)/events/(event)/checkinlists/(id)/status/

Returns detailed status information on a check-in list, identified by its ID.

Example request:

GET /api/v1/organizers/bigevents/events/sampleconf/checkinlists/1/status/ HTTP/1.1
Host: pretix.eu
Accept: application/json, text/javascript

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: application/json

{
  "checkin_count": 17,
  "position_count": 42,
  "inside_count": 12,
  "event": {
    "name": "Demo Conference"
  },
  "items": [
    {
      "name": "T-Shirt",
      "id": 1,
      "checkin_count": 1,
      "admission": false,
      "position_count": 1,
      "variations": [
        {
          "value": "Red",
          "id": 1,
          "checkin_count": 1,
          "position_count": 12
        },
        {
          "value": "Blue",
          "id": 2,
          "checkin_count": 4,
          "position_count": 8
        }
      ]
    },
    {
      "name": "Ticket",
      "id": 2,
      "checkin_count": 15,
      "admission": true,
      "position_count": 22,
      "variations": []
    }
  ]
}
Parameters:

  • organizer – The slug field of the organizer to fetch

  • event – The slug field of the event to fetch

  • id – The id field of the check-in list to fetch

Status Codes:

  • 200 OK – no error

  • 401 Unauthorized – Authentication failure

  • 403 Forbidden – The requested organizer/event does not exist or you have no permission to view this resource.

POST /api/v1/organizers/(organizer)/events/(event)/checkinlists/

Creates a new check-in list.

Example request:

POST /api/v1/organizers/bigevents/events/sampleconf/checkinlists/ HTTP/1.1
Host: pretix.eu
Accept: application/json, text/javascript
Content-Type: application/json

{
  "name": "VIP entry",
  "all_products": false,
  "limit_products": [1, 2],
  "subevent": null,
  "allow_multiple_entries": false,
  "allow_entry_after_exit": true,
  "addon_match": false,
  "auto_checkin_sales_channels": [
    "pretixpos"
  ]
}

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: application/json

{
  "id": 2,
  "name": "VIP entry",
  "checkin_count": 0,
  "position_count": 0,
  "all_products": false,
  "limit_products": [1, 2],
  "include_pending": false,
  "subevent": null,
  "allow_multiple_entries": false,
  "allow_entry_after_exit": true,
  "addon_match": false,
  "auto_checkin_sales_channels": [
    "pretixpos"
  ]
}
Parameters:

  • organizer – The slug field of the organizer of the event/item to create a list for

  • event – The slug field of the event to create a list for

Status Codes:
PATCH /api/v1/organizers/(organizer)/events/(event)/checkinlists/(id)/

Update a check-in list. You can also use PUT instead of PATCH. With PUT, you have to provide all fields of the resource, other fields will be reset to default. With PATCH, you only need to provide the fields that you want to change.

You can change all fields of the resource except the id field and the checkin_count and position_count fields.

Example request:

PATCH /api/v1/organizers/bigevents/events/sampleconf/checkinlists/1/ HTTP/1.1
Host: pretix.eu
Accept: application/json, text/javascript
Content-Type: application/json
Content-Length: 94

{
  "name": "Backstage",
}

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: application/json

{
  "id": 2,
  "name": "Backstage",
  "checkin_count": 23,
  "position_count": 42,
  "all_products": false,
  "limit_products": [1, 2],
  "include_pending": false,
  "subevent": null,
  "allow_multiple_entries": false,
  "allow_entry_after_exit": true,
  "addon_match": false,
  "auto_checkin_sales_channels": [
    "pretixpos"
  ]
}
Parameters:

  • organizer – The slug field of the organizer to modify

  • event – The slug field of the event to modify

  • id – The id field of the list to modify

Status Codes:

  • 200 OK – no error

  • 400 Bad Request – The list could not be modified due to invalid submitted data

  • 401 Unauthorized – Authentication failure

  • 403 Forbidden – The requested organizer/event does not exist or you have no permission to change this resource.

DELETE /api/v1/organizers/(organizer)/events/(event)/checkinlist/(id)/

Delete a check-in list. Note that this also deletes the information on all check-ins performed via this list.

Example request:

DELETE /api/v1/organizers/bigevents/events/sampleconf/checkinlist/1/ HTTP/1.1
Host: pretix.eu
Accept: application/json, text/javascript

Example response:

HTTP/1.1 204 No Content
Vary: Accept
Parameters:

  • organizer – The slug field of the organizer to modify

  • event – The slug field of the event to modify

  • id – The id field of the check-in list to delete

Status Codes:
POST /api/v1/organizers/(organizer)/events/(event)/checkinlists/(list)/failed_checkins/

Stores a failed check-in. Only necessary for statistical purposes if you perform scan validation offline.

Request JSON Object:

  • error_reason (boolean) – One of canceled, invalid, unpaid, product, rules, revoked, incomplete, already_redeemed, blocked, invalid_time, or error. Required.

  • raw_barcode – The raw barcode you scanned. Required.

  • datetime – Date and time of the scan. Optional.

  • type – Type of scan, defaults to "entry".

  • position – Internal ID of an order position you matched. Optional.

  • raw_item – Internal ID of an item you matched. Optional.

  • raw_variation – Internal ID of an item variation you matched. Optional.

  • raw_subevent – Internal ID of an event series date you matched. Optional.

Example request:

POST /api/v1/organizers/bigevents/events/sampleconf/checkinlists/1/failed_checkins/ HTTP/1.1
Host: pretix.eu
Accept: application/json, text/javascript

{
  "raw_barcode": "Pvrk50vUzQd0DhdpNRL4I4OcXsvg70uA",
  "error_reason": "canceled"
}
Parameters:

  • organizer – The slug field of the organizer to fetch

  • event – The slug field of the event to fetch

  • list – The ID of the check-in list to save for

Status Codes:

Order position endpoints

GET /api/v1/organizers/(organizer)/events/(event)/checkinlists/(list)/positions/

Returns a list of all order positions within a given event. The result is the same as the Order position resource, with the following differences:

  • The checkins value will only include check-ins for the selected list.

  • An additional boolean property require_attention will inform you whether either the order or the item have the checkin_attention flag set.

  • If attendee_name is empty, it will automatically fall back to values from a parent product or from invoice addresses.

You can use this endpoint to implement a ticket search. We also provide a dedicated search input as part of our check-in API that supports search across multiple events.

Example request:

GET /api/v1/organizers/bigevents/events/sampleconf/checkinlists/1/positions/ HTTP/1.1
Host: pretix.eu
Accept: application/json, text/javascript

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: application/json

{
  "count": 1,
  "next": null,
  "previous": null,
  "results": [
    {
      "id": 23442,
      "order": "ABC12",
      "positionid": 1,
      "item": 1345,
      "variation": null,
      "price": "23.00",
      "attendee_name": "Peter",
      "attendee_name_parts": {
        "full_name": "Peter",
      },
      "attendee_email": null,
      "voucher": null,
      "tax_rate": "0.00",
      "tax_rule": null,
      "tax_value": "0.00",
      "secret": "z3fsn8jyufm5kpk768q69gkbyr5f4h6w",
      "addon_to": null,
      "subevent": null,
      "pseudonymization_id": "MQLJvANO3B",
      "seat": null,
      "checkins": [
        {
          "list": 1,
          "type": "entry",
          "gate": null,
          "device": 2,
          "datetime": "2017-12-25T12:45:23Z",
          "auto_checked_in": true
        }
      ],
      "answers": [
        {
          "question": 12,
          "answer": "Foo",
          "options": []
        }
      ],
      "downloads": [
        {
          "output": "pdf",
          "url": "https://pretix.eu/api/v1/organizers/bigevents/events/sampleconf/orderpositions/23442/download/pdf/"
        }
      ]
    }
  ]
}
Query Parameters:

  • page (integer) – The page number in case of a multi-page result set, default is 1

  • ignore_status (string) – If set to true, results will be returned regardless of the state of the order they belong to and you will need to do your own filtering by order status.

  • ordering (string) – Manually set the ordering of results. Valid fields to be used are order__code, order__datetime, positionid, attendee_name, last_checked_in and order__email. Default: attendee_name,positionid

  • order (string) – Only return positions of the order with the given order code

  • search (string) – Fuzzy search matching the attendee name, order code, invoice address name as well as to the beginning of the secret.

  • expand (string) – Expand a field into a full object. Currently subevent, item, variation, and answers.question are supported. Can be passed multiple times.

  • item (integer) – Only return positions with the purchased item matching the given ID.

  • item__in (integer) – Only return positions with the purchased item matching one of the given comma-separated IDs.

  • variation (integer) – Only return positions with the purchased item variation matching the given ID.

  • variation__in (integer) – Only return positions with one of the purchased item variation matching the given comma-separated IDs.

  • attendee_name (string) – Only return positions with the given value in the attendee_name field. Also, add-on products positions are shown if they refer to an attendee with the given name.

  • secret (string) – Only return positions with the given ticket secret.

  • order__status (string) – Only return positions with the given order status.

  • order__status__in (string) – Only return positions with one the given comma-separated order status.

  • has_checkin (boolean) – If set to true or false, only return positions that have or have not been checked in already.

  • subevent (integer) – Only return positions of the sub-event with the given ID

  • subevent__in (integer) – Only return positions of one of the sub-events with the given comma-separated IDs

  • addon_to (integer) – Only return positions that are add-ons to the position with the given ID.

  • addon_to__in (integer) – Only return positions that are add-ons to one of the positions with the given comma-separated IDs.

  • voucher (string) – Only return positions with a specific voucher.

  • voucher__code (string) – Only return positions with a specific voucher code.

Parameters:

  • organizer – The slug field of the organizer to fetch

  • event – The slug field of the event to fetch

  • list – The ID of the check-in list to look for

Status Codes:
GET /api/v1/organizers/(organizer)/events/(event)/checkinlists/(list)/positions/(id)/

Returns information on one order position, identified by its internal ID. The result is the same as the Order position resource, with the following differences:

  • The checkins value will only include check-ins for the selected list.

  • An additional boolean property require_attention will inform you whether either the order or the item have the checkin_attention flag set.

  • If attendee_name is empty, it will automatically fall back to values from a parent product or from invoice addresses.

Example request:

GET /api/v1/organizers/bigevents/events/sampleconf/checkinlists/1/positions/23442/ HTTP/1.1
Host: pretix.eu
Accept: application/json, text/javascript

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: application/json

{
  "id": 23442,
  "order": "ABC12",
  "positionid": 1,
  "item": 1345,
  "variation": null,
  "price": "23.00",
  "attendee_name": "Peter",
  "attendee_name_parts": {
    "full_name": "Peter",
  },
  "attendee_email": null,
  "voucher": null,
  "tax_rate": "0.00",
  "tax_rule": null,
  "tax_value": "0.00",
  "secret": "z3fsn8jyufm5kpk768q69gkbyr5f4h6w",
  "addon_to": null,
  "subevent": null,
  "pseudonymization_id": "MQLJvANO3B",
  "seat": null,
  "checkins": [
    {
      "list": 1,
      "datetime": "2017-12-25T12:45:23Z",
      "type": "entry",
      "gate": null,
      "device": 2,
      "auto_checked_in": true
    }
  ],
  "answers": [
    {
      "question": 12,
      "answer": "Foo",
      "options": []
    }
  ],
  "downloads": [
    {
      "output": "pdf",
      "url": "https://pretix.eu/api/v1/organizers/bigevents/events/sampleconf/orderpositions/23442/download/pdf/"
    }
  ]
}
Parameters:

  • organizer – The slug field of the organizer to fetch

  • event – The slug field of the event to fetch

  • list – The ID of the check-in list to look for

  • id – The id field of the order position to fetch

Status Codes:

  • 200 OK – no error

  • 401 Unauthorized – Authentication failure

  • 403 Forbidden – The requested organizer/event does not exist or you have no permission to view this resource.

  • 404 Not Found – The requested order position or check-in list does not exist.

POST /api/v1/organizers/(organizer)/events/(event)/checkinlists/(list)/positions/(id)/redeem/

Tries to redeem an order position, identified by its internal ID, i.e. checks the attendee in. This endpoint accepts a number of optional requests in the body.

Tip: Instead of an ID, you can also use the secret field as the lookup parameter. In this case, you should always set untrusted_input=true as a query parameter to avoid security issues.

Note

We no longer recommend using this API if you’re building a ticket scanning application, as it has a few design flaws that can lead to security issues or compatibility issues due to barcode content characters that are not URL-safe. We recommend to use our new check-in API instead.

Query Parameters:

  • untrusted_input (boolean) – If set to true, the lookup parameter is always interpreted as a secret, never as an id. This should be always set if you are passing through untrusted, scanned data to avoid guessing of ticket IDs.

Request JSON Object:

  • questions_supported (boolean) – When this parameter is set to true, handling of questions is supported. If you do not implement question handling in your user interface, you must set this to false. In that case, questions will just be ignored. Defaults to true.

  • canceled_supported (boolean) – When this parameter is set to true, the response code canceled may be returned. Otherwise, canceled orders will return unpaid. (Deprecated, in the future, this will be ignored and canceled may always be returned.)

  • datetime (datetime) – Specifies the datetime of the check-in. If not supplied, the current time will be used.

  • force (boolean) – Specifies that the check-in should succeed regardless of revoked barcode, previous check-ins or required questions that have not been filled. This is usually used to upload offline scans that already happened, because there’s no point in validating them since they happened whether they are valid or not. Defaults to false.

  • type (string) – Send "exit" for an exit and "entry" (default) for an entry.

  • ignore_unpaid (boolean) – Specifies that the check-in should succeed even if the order is in pending state. Defaults to false and only works when include_pending is set on the check-in list.

  • nonce (string) – You can set this parameter to a unique random value to identify this check-in. If you’re sending this request twice with the same nonce, the second request will also succeed but will always create only one check-in object even when the previous request was successful as well. This allows for a certain level of idempotency and enables you to re-try after a connection failure.

  • answers (object) – If questions are supported/required, you may/must supply a mapping of question IDs to their respective answers. The answers should always be strings. In case of (multiple-)choice-type answers, the string should contain the (comma-separated) IDs of the selected options.

Example request:

POST /api/v1/organizers/bigevents/events/sampleconf/checkinlists/1/positions/234/redeem/ HTTP/1.1
Host: pretix.eu
Accept: application/json, text/javascript

{
  "force": false,
  "ignore_unpaid": false,
  "nonce": "Pvrk50vUzQd0DhdpNRL4I4OcXsvg70uA",
  "datetime": null,
  "questions_supported": true,
  "canceled_supported": true,
  "answers": {
    "4": "XS"
  }
}

Example successful response:

HTTP/1.1 201 Created
Vary: Accept
Content-Type: application/json

{
  "status": "ok",
  "position": {
    …
  }
}

Example response with required questions:

HTTP/1.1 400 Bad Request
Content-Type: text/json

{
  "status": "incomplete",
  "position": {
    …
  },
  "questions": [
    {
      "id": 1,
      "question": {"en": "T-Shirt size"},
      "type": "C",
      "required": false,
      "items": [1, 2],
      "position": 1,
      "identifier": "WY3TP9SL",
      "ask_during_checkin": true,
      "show_during_checkin": true,
      "options": [
        {
          "id": 1,
          "identifier": "LVETRWVU",
          "position": 0,
          "answer": {"en": "S"}
        },
        {
          "id": 2,
          "identifier": "DFEMJWMJ",
          "position": 1,
          "answer": {"en": "M"}
        },
        {
          "id": 3,
          "identifier": "W9AH7RDE",
          "position": 2,
          "answer": {"en": "L"}
        }
      ]
    }
  ]
}

Example error response:

HTTP/1.1 200 OK
Content-Type: text/json

{
  "status": "error",
  "reason": "unpaid",
  "position": {
    …
  }
}

Possible error reasons:

  • invalid - Ticket code not known.

  • unpaid - Ticket is not paid for.

  • blocked - Ticket has been blocked.

  • invalid_time - Ticket is not valid at this time.

  • canceled – Ticket is canceled or expired. This reason is only sent when your request sets. canceled_supported to true, otherwise these orders return unpaid.

  • already_redeemed - Ticket already has been redeemed.

  • product - Tickets with this product may not be scanned at this device.

  • rules - Check-in prevented by a user-defined rule.

  • ambiguous - Multiple tickets match scan, rejected.

  • revoked - Ticket code has been revoked.

  • unapproved - Order has not yet been approved.

In case of reason rules or invalid_time, there might be an additional response field reason_explanation with a human-readable description of the violated rules. However, that field can also be missing or be null.

Parameters:

  • organizer – The slug field of the organizer to fetch

  • event – The slug field of the event to fetch

  • list – The ID of the check-in list to look for

  • id – The id field of the order position to fetch

Status Codes: