The repeating-data-data-entry API from Castor — 2 operation(s) for repeating-data-data-entry.
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openapi: 3.2.0
info:
version: 2026.1.6.1
title: Castor EDC API Documentation Repeating Data Data Entry API
description: '### Overview
This document provides the specifications of the Castor EDC API, describing the currently available
API endpoints and methods. We aim to provide a fully functional RESTful API to communicate with
Castor EDC and these are endpoints currently available.
The formal OpenAPI 2 specification by which this page is rendered is also available in the following formats:
* YAML
* JSON
* JSON (pretty print)
### Authentication & Authorization with OAuth 2
Authentication and authorization are arranged through OAuth2. We currently provide full support for the Client
Credentials flow. The Authorization Code flow is supported, but we ask you to contact us if you want to use this flow.
To use the Client Credentials flow go to your
Castor EDC profile and generate
a Client ID and Client Secret. Use the Client ID and Client Secret to retrieve an access token by making a request to
the ''/oauth/token'' endpoint with your client_id and client_secret as parameters and grant_type=client_credentials.
PHP Example:
```php
include __DIR__.''/vendor/autoload.php'';
use Guzzle\Http\Client;
// Create the HTTP Client.
$httpClient = new Client(
''https://data.castoredc.com'',
[
''request.options'' => [
''exceptions'' => false,
]
]
);
// Build the request
$request = $httpClient->post(
''/oauth/token'',
null,
[
''client_id'' => ''YourCastorClientId'',
''client_secret'' => ''YourCastorClientSecret'',
''grant_type'' => ''client_credentials'',
]
);
// Send the request
$response = $request->send();
$responseBody = $response->getBody(true);
$responseArr = json_decode($responseBody, true);
$accessToken = $responseArr[''access_token''];
```
In your subsequent requests you can use the `$accessToken` as a Bearer token in the Authorization header, i.e:
```php
$request = $httpClient->get(''/api/user'');
$request->addHeader(''Authorization'', ''Bearer ''. $accessToken);
$response = $request->send();
echo $response->getBody();
```
### OAuth2 Scopes
There are 3 scopes that endpoints may support.
* **default**: allows access to all endpoints
* **study_statistics**: allows access to study statistics
* **record**: allows access to data for a single participant
Due to a bug in the OpenAPI UI, all three scopes are listed for all endpoints.
If the endpoint supports something other than the default scope, the summary will have a 🔭 emoji and the scope will be
listed in the description as well as under the `security:` key in the specification.
### Rate Limits
Unless specified in the resource, endpoints are rate-limited to 600 requests in 10 minutes.
### Legacy (Basic HTTP Authentication)
**Please note: Basic HTTP Authentication has been removed on 2019 August 13**
### Changelog
API changes can be viewed here'
contact:
name: support@castoredc.com
servers:
- url: https://data.castoredc.com/api/
security:
- OAuth2ClientCredentials:
- default
- study_statistics
- record
tags:
- name: repeating-data-data-entry
paths:
/study/{study_id}/participant/{participant_id}/data-point/repeating-data/{repeating_data_instance_id}:
get:
tags:
- repeating-data-data-entry
summary: Retrieve list of all stored values for a participant's repeating data
security:
- OAuth2ClientCredentials:
- default
description: 'Gets `RepeatingDataDataPoint` objects that contain the stored value for a specific repeating data field in a specific participant.
Always requires a study_id, participant_id and repeating_data_instance_id to be given. Can be paged.
Returns HalJson responses (with _links for paging and to single objects).'
parameters:
- name: study_id
in: path
description: The ID of the study for which this call should be made
required: true
schema:
type: string
format: UUID
- name: page
in: query
description: The page to retrieve
required: false
schema:
type: integer
default: 1
- name: participant_id
in: path
description: The ID of the participant to retrieve field values for
required: true
schema:
type: string
- name: repeating_data_instance_id
in: path
description: The ID of the repeating data instance to retrieve field values for
required: true
schema:
type: string
- name: validations
in: query
description: Set to 1 to include the list of validations for each field
required: false
schema:
type: integer
default: 0
responses:
200:
description: List of all field values for a participant.
content:
application/hal+json:
schema:
title: RepeatingDataInstanceFieldResults HalJSON representation
type: object
properties:
_links:
$ref: '#/components/schemas/LinksCollection'
_embedded:
type: object
properties:
RepeatingDataDataPoints:
type: array
items:
$ref: '#/components/schemas/RepeatingDataInstanceFieldResult'
page_count:
type: number
page_size:
type: number
total_items:
type: number
page:
type: number
default:
description: Unexpected error
content:
application/hal+json:
schema:
$ref: '#/components/schemas/Error'
operationId: getStudyByStudyIdParticipantByParticipantIdDataPointRepeatingDataByRepeatingDataInstanceId
x-operation-id-source: derived
/study/{study_id}/participant/{participant_id}/data-point/repeating-data/{repeating_data_instance_id}/{field_id}:
get:
tags:
- repeating-data-data-entry
summary: Retrieve a single RepeatingDataInstanceFieldResult object
security:
- OAuth2ClientCredentials:
- default
description: Returns HalJson objects (with _links).
parameters:
- name: study_id
in: path
description: The ID of the study for which this call should be made
required: true
schema:
type: string
format: UUID
- name: participant_id
in: path
description: ID of the participant
required: true
schema:
type: string
- name: field_id
in: path
description: ID of the field
required: true
schema:
type: string
- name: repeating_data_instance_id
in: path
description: ID of the repeating data instance
required: true
schema:
type: string
- name: validations
in: query
description: Set to 1 to include the list of validations for each field
required: false
schema:
type: integer
default: 0
responses:
200:
description: Single RepeatingDataInstanceFieldResult
content:
application/hal+json:
schema:
$ref: '#/components/schemas/RepeatingDataInstanceFieldResult'
default:
description: Unexpected error
content:
application/hal+json:
schema:
$ref: '#/components/schemas/Error'
operationId: getStudyByStudyIdParticipantByParticipantIdDataPointRepeatingDataByRepeatingDataInstanceIdByFieldId
x-operation-id-source: derived
post:
tags:
- repeating-data-data-entry
summary: Create a field result for a repeating data instance
security:
- OAuth2ClientCredentials:
- default
description: Create a field result for a repeating data instance.
parameters:
- name: study_id
in: path
description: The ID of the study for which this call should be made
required: true
schema:
type: string
format: UUID
- name: participant_id
in: path
description: The ID of the participant
required: true
schema:
type: string
- name: field_id
in: path
description: ID of the field
required: true
schema:
type: string
format: UUID
- name: repeating_data_instance_id
in: path
description: ID of the repeating data instance
required: true
schema:
type: string
responses:
201:
description: Field value successfully created
404:
description: The given Participant, Field or RepeatingDataInstance does not exist.
400:
description: Invalid input
422:
description: Unprocessable entity - see error details for more information.
content:
application/hal+json:
schema:
$ref: '#/components/schemas/Error'
default:
description: Unexpected error
content:
application/hal+json:
schema:
$ref: '#/components/schemas/Error'
requestBody:
content:
application/vnd.swagger+json:
schema:
type: object
properties:
field_value:
type: string
description: The value. If empty, it will clear any stored value, including uploaded files.
confirmed_changes:
type: boolean
description: Required when changing an existing data point that is verified or signed. Note that you also have to provide "change_reason".
change_reason:
type: string
description: Required change reason when changing an existing data point that is verified or signed, or when GCP is enabled and there is already a data point that is being changed.
upload_file:
type: string
description: Optional field. If supplied, the "field_value" parameter needs to be omitted. The contents will be uploaded. The upload limit is 2MB
format: binary
application/json:
schema:
type: object
properties:
field_value:
type: string
description: The value. If empty, it will clear any stored value, including uploaded files.
confirmed_changes:
type: boolean
description: Required when changing an existing data point that is verified or signed. Note that you also have to provide "change_reason".
change_reason:
type: string
description: Required change reason when changing an existing data point that is verified or signed, or when GCP is enabled and there is already a data point that is being changed.
upload_file:
type: string
description: Optional field. If supplied, the "field_value" parameter needs to be omitted. The contents will be uploaded. The upload limit is 2MB
format: binary
multipart/form-data:
schema:
type: object
properties:
field_value:
type: string
description: The value. If empty, it will clear any stored value, including uploaded files.
confirmed_changes:
type: boolean
description: Required when changing an existing data point that is verified or signed. Note that you also have to provide "change_reason".
change_reason:
type: string
description: Required change reason when changing an existing data point that is verified or signed, or when GCP is enabled and there is already a data point that is being changed.
upload_file:
type: string
description: Optional field. If supplied, the "field_value" parameter needs to be omitted. The contents will be uploaded. The upload limit is 2MB
format: binary
operationId: postStudyByStudyIdParticipantByParticipantIdDataPointRepeatingDataByRepeatingDataInstanceIdByFieldId
x-operation-id-source: derived
components:
schemas:
DateTime:
type: object
description: A serialized PHP DateTime object.
properties:
date:
type: string
description: Date and time in Y-m-d H:i:s.u format.
timezone_type:
type: integer
timezone:
type: string
Metadata:
type: object
properties:
id:
type: string
format: UUID
description: Unique identifier of the Metadata
parent_id:
type: string
description: Metadata id of this metadata's parent (circular reference)
value:
type: string
description: The value
description:
type: string
description: The description
_embedded:
type: object
description: The metadataType
properties:
metadata_type:
$ref: '#/components/schemas/MetadataType'
_links:
$ref: '#/components/schemas/LinksSingle'
RepeatingData:
type: object
properties:
id:
type: string
format: UUID
description: Unique identifier of the Repeating Data (same as repeating_data_id)
repeating_data_id:
type: string
format: UUID
description: Unique identifier of the Repeating Data(same as id)
name:
type: string
description: Name of the Repeating Data
description:
type: string
description: Description of the Repeating Data
type:
type: string
description: The repeating data type (event, medication, repeated_measure or other)
_links:
$ref: '#/components/schemas/LinksSingle'
RepeatingDataInstance:
type: object
description: 'The repeating data instance is an instantiation of repeating data,
a real copy of repeating data to which the data points get saved.'
properties:
id:
type: string
format: UUID
description: Unique id of the repeating data instance.
name:
type: string
description: Name of the repeating data instance.
repeating data_name:
type: string
description: Name of the repeating data.
status:
type: string
description: The status.
parent_id:
type: string
format: UUID
description: The parent id.
parent_type:
type: string
description: The parent type.
participant_id:
type: string
description: The participant it belongs to.
created_on:
type: string
format: dateTime
description: the date the repeating data instance was created.
created_by:
type: string
format: UUID
description: ID of the user who created the repeating data instance.
archived:
type: boolean
description: Is the repeating data instance archived?
_embedded:
type: object
properties:
repeating_data:
$ref: '#/components/schemas/RepeatingData'
_links:
$ref: '#/components/schemas/LinksSingle'
FieldDependencyNested:
type: object
properties:
id:
type: integer
description: Unique identifier of the FieldDependency
parent_id:
type: string
format: UUID
description: The ID of the parent field (the field being checked)
child_id:
type: string
format: UUID
description: The ID of the child field (the field that depends on the parent)
value:
type: string
description: The value that the parent field is compared against
operator:
type: string
description: The dependency operator (e.g., ==, !=, >, <)
FieldOptionGroup:
type: object
properties:
id:
type: string
format: UUID
description: Unique identifier of the FieldOptionGroup
name:
type: string
description: The FieldOptionGroup name
description:
type: string
description: The FieldOptionGroup description
layout:
type: string
description: Horizontal or vertical option positioning
options:
type: array
description: The list of FieldOptions that are included in this FieldOptionGroup
items:
$ref: '#/components/schemas/FieldOption'
_links:
$ref: '#/components/schemas/LinksSingle'
MetadataType:
type: object
properties:
id:
type: string
format: UUID
description: Unique identifier of the MetadataType
name:
type: string
description: The name of this MetadataType
description:
type: string
description: The description of this MetadataType
_links:
$ref: '#/components/schemas/LinksSingle'
LinksCollection:
type: object
properties:
self:
type: object
properties:
href:
type: string
first:
type: object
properties:
href:
type: string
last:
type: object
properties:
href:
type: string
next:
type: object
properties:
href:
type: string
Participant:
type: object
properties:
id:
type: string
participant_id:
type: string
participant_status:
$ref: '#/components/schemas/ParticipantStatus'
site:
$ref: '#/components/schemas/Site'
ccr_patient_id:
type: string
randomization_group:
type: number
randomization_group_name:
type: string
last_opened_step:
type: string
format: UUID
progress:
type: number
locked:
type: boolean
status:
type: string
description: 'Deprecated: use the locked property instead'
deleted:
type: boolean
archived_reason:
type: string
created_by:
type: string
created_on:
$ref: '#/components/schemas/DateTime'
updated_by:
type: string
updated_on:
$ref: '#/components/schemas/DateTime'
mobile_ui_version:
type: string
description: Existing versions are 1.0, 2.0, 3.0, 4.0, 5.0
mobile_my_details_enabled:
type: boolean
description: Feature toggle for My Details within the Castor Connect Mobile App
randomized_on:
$ref: '#/components/schemas/DateTime'
_links:
$ref: '#/components/schemas/LinksSingle'
LinksSingle:
type: object
properties:
self:
type: object
properties:
href:
type: string
Site:
type: object
properties:
_links:
$ref: '#/components/schemas/LinksSingle'
FieldValidation:
type: object
properties:
id:
type: string
format: integer
description: Unique identifier of the FieldValidation
type:
type: string
description: FieldValidation type
value:
type: string
default: null
description: The static value to compare against or null for field-to-field validations
text:
type: string
description: The message of the validation
field_id:
type: string
format: UUID
description: The field that uses this validation
reference_type:
type: string
enum:
- field
- value
description: The type of validation reference. "field" means comparing against another field, "value" means comparing against a static value
referenced_field_id:
type: string
format: UUID
default: null
description: The ID of the referenced field for field-to-field validations or null for value validations
_links:
$ref: '#/components/schemas/LinksSingle'
FieldOption:
type: object
properties:
id:
type: string
format: UUID
description: Unique identifier of the Option
name:
type: string
description: The Option name
value:
type: string
description: The Option value
groupOrder:
type: integer
description: The position of the option within the group
RepeatingDataInstanceFieldResult:
type: object
properties:
participant_id:
type: string
description: The participant this field value belongs to.
field_variable_name:
type: string
description: The field variable name.
field_id:
type: string
format: UUID
description: The Field id.
value:
type: string
description: The field's value.
updated_on:
type: string
description: 'Will return UNIX epoch (1970-01-01) if updated_on is not available. '
repeating_data_instance_id:
type: string
description: The repeating data id this field value belongs to.
_embedded:
type: object
properties:
participant:
$ref: '#/components/schemas/Participant'
field:
$ref: '#/components/schemas/Field'
RepeatingDataInstance:
$ref: '#/components/schemas/RepeatingDataInstance'
_links:
$ref: '#/components/schemas/LinksSingle'
ParticipantStatus:
type: object
properties:
id:
type: string
name:
type: string
Error:
type: object
properties:
status:
type: integer
format: int32
description: The HTTP return code.
title:
type: string
description: The short error description belonging to the status code
detail:
type: string
description: The detailed explanation of the failure
type:
type: string
description: URL to RFC explaining this statuscode
errors:
type: object
description: Optional list of all errors that occurred during the request
validation_messages:
type: object
description: Optional list of validation failure message
Field:
type: object
properties:
id:
type: string
format: UUID
description: Unique identifier of the Field (same as field_id)
field_id:
type: string
format: UUID
description: Unique identifier of the Field (same as id)
field_type:
type: string
description: The Field type
field_label:
type: string
description: The Field label
field_number:
type: number
description: The Field's position within a step
field_variable_name:
type: string
description: The Field's variable name
field_required:
type: integer
description: If enabled, it makes the field required (cannot be left empty). Returns 1 for required, 0 for not required
field_enforce_decimals:
type: boolean
description: If enabled, it requires decimals digits in data-entry
default: null
field_hidden:
type: integer
description: If enabled, it hides the field in data-entry. Returns 1 for hidden, 0 for visible
field_info:
type: string
format: markdown
description: Information about the field. It is shown during data-entry
field_units:
type: string
description: The field's measurement unit
field_length:
type: number
description: Length parameter to derive UI input width for this field
default: null
field_slider_step:
type: string
description: Slider step (Deprecated. Use field_slider_step_value instead)
default: null
field_slider_step_value:
type: number
format: float
description: Slider step value
default: null
field_image:
type: string
description: URL to the image for the Image field type
parent_id:
type: string
format: UUID
description: The field's parent id
metadata_points:
type: array
items:
$ref: '#/components/schemas/Metadata'
validations:
type: array
items:
$ref: '#/components/schemas/FieldValidation'
option_group:
type: array
items:
$ref: '#/components/schemas/FieldOptionGroup'
default: null
randomize_option_order:
type: boolean
description: If enabled, the order of options should be randomized (only applies to dropdown, radio, and checkbox fields)
domains:
type: array
items:
$ref: '#/components/schemas/FieldDomain'
dependency_parents:
type: array
description: List of parent field dependencies (fields that this field depends on)
items:
$ref: '#/components/schemas/FieldDependencyNested'
dependency_children:
type: array
description: List of child field dependencies (fields that depend on this field)
items:
$ref: '#/components/schemas/FieldDependencyNested'
_links:
$ref: '#/components/schemas/LinksSingle'
FieldDomain:
type: object
properties:
name:
type: string
description: Full domain name
abbreviation:
type: string
description: Abbreviated domain name
domain_variable_name:
type: string
description: Domain variable name
securitySchemes:
OAuth2ClientCredentials:
type: oauth2
flows:
clientCredentials:
scopes:
default: Grants access to everything
study_statistics: Grants access to a study's statistics
record: Grants access to the data for a single participant; intended for use by study subjects
tokenUrl: https://data.castoredc.com/oauth/token
x-provenance:
method: harvested
publisher: Castor
source: https://data.castoredc.com/api/swagger
note: split by refine-openapis from the provider's own published document, verified by fetch (openapi/_original/*.fetch.json);
stamped by stamp-openapi-provenance.py (roadmap#793)