> ## Documentation Index
> Fetch the complete documentation index at: https://docs.growthbook.io/llms.txt
> Use this file to discover all available pages before exploring further.
# Start the Holdout's Active Period
> Feature Flags and Experiments can be added during this period while the Holdout measures their cumulative impact.
## OpenAPI
````yaml openapi.yaml POST /v1/holdouts/{id}/start
openapi: 3.1.0
info:
version: 5.0.1
title: GrowthBook REST API
description: >
GrowthBook offers a full REST API for interacting with the application.
Request data can use either JSON or Form data encoding (with proper
`Content-Type` headers). All response bodies are JSON-encoded.
The API base URL for GrowthBook Cloud is `https://api.growthbook.io/api`.
For self-hosted deployments, it is the same as your API_HOST environment
variable (defaults to `http://localhost:3100/api`). The rest of these docs
will assume you are using GrowthBook Cloud.
## Versioning
Endpoints are versioned by path prefix:
- `/v1/...` — stable, widely-supported endpoints
- `/v2/...` — updated endpoints with improved shapes (e.g. unified per-rule
environment scope for feature flags)
New integrations should prefer v2 where available.
## Authentication
We support both the HTTP Basic and Bearer authentication schemes for
convenience.
You first need to generate a new API Key in GrowthBook. Different keys have
different permissions:
- **Personal Access Tokens**: These are sensitive and provide the same level
of access as the user has to an organization. These can be created by going
to `Personal Access Tokens` under the your user menu.
- **Secret Keys**: These are sensitive and provide the level of access for
the role, which currently is either `admin` or `readonly`. Only Admins with
the `manageApiKeys` permission can manage Secret Keys on behalf of an
organization. These can be created by going to `Settings -> API Keys`
If using HTTP Basic auth, pass the Secret Key as the username and leave the
password blank (when using curl, add `:` at the end of the secret to
indicate an empty password)
```bash
curl https://api.growthbook.io/api/v1/features \
-u secret_abc123DEF456:
```
If using Bearer auth, pass the Secret Key as the token:
```bash
curl https://api.growthbook.io/api/v1/features \
-H "Authorization: Bearer secret_abc123DEF456"
```
## Errors
The API may return the following error status codes:
- **400** - Bad Request - Often due to a missing required parameter
- **401** - Unauthorized - No valid API key provided
- **402** - Request Failed - The parameters are valid, but the request
failed
- **403** - Forbidden - Provided API key does not have the required access
- **404** - Not Found - Unknown API route or requested resource
- **422** - Unprocessable Entity - The request is valid, but a warning,
validation rule, approval requirement, or another publishing gate blocked
it. Do not assume that `ignoreWarnings` clears every 422 response.
- **429** - Too Many Requests - You exceeded the rate limit of 60 requests
per minute. Try again later.
- **5XX** - Server Error - Something went wrong on GrowthBook's end (these
are rare)
The response body will be a JSON object with the following properties:
- **message** - Information about the error
### Publishing gates
Publish responses include a `gates` array that explains every blocker:
- `type`, `severity`, and `messages` identify the problem.
- `override` names the request-body field that can bypass it. This is
`ignoreWarnings` for warnings, `skipSchemaValidation` for schema and
invariant failures, or `skipHooks` for Custom Hook rejections. A value of
`null` means there is no request-body override.
- `requiresPermission` identifies any additional permission needed to use
the override.
- `resolution` provides an API action, method, and path when the blocker
must be resolved another way.
For example, an approval gate is cleared by approving the revision or by
using a caller with **Bypass draft approvals** access. A Config lock is
cleared through the unlock route in `resolution`.
When a successful publish bypasses a gate, the response includes
`bypassedGates`. Each entry reports the gate `type` and how it was bypassed
in `via`, which is one of `ignoreWarnings`, `skipSchemaValidation`,
`skipHooks`, `bypassApprovalPermission`, `restApiBypassesReviews`, or
`revertsBypassApproval` (reverts only). This field is omitted when no gates
were bypassed.
servers:
- url: https://api.growthbook.io/api
description: GrowthBook Cloud
- url: https://{domain}/api
description: Self-hosted GrowthBook
variables:
domain:
default: localhost:3100
description: Your self-hosted GrowthBook host (and port)
security:
- bearerAuth: []
- basicAuth: []
tags:
- name: projects
x-displayName: Projects
description: Projects are used to organize your feature flags and experiments
- name: environments
x-displayName: Environments
description: >-
GrowthBook comes with one environment by default (production), but you can
add as many as you need. When used with feature flags, you can
enable/disable feature flags on a per-environment basis.
- name: features-v2
x-displayName: Feature Flags
description: >-
Control your feature flags programatically.
Rules are returned as a unified top-level array; each rule carries
`allEnvironments` / `environments` scope fields instead of being bucketed
by environment.
- name: feature-revisions-v2
x-displayName: Feature Revisions
description: >-
Draft revisions for feature flags, including rules, scheduling, and
approval workflows.
Revision `rules` is a flat array with per-rule scope fields.
- name: features
x-displayName: Feature Flags (legacy)
description: >-
Control your feature flags programatically.
**These are v1 endpoints.** New integrations should use the v2 Feature
Flags endpoints, which expose a unified per-rule environment scope instead
of per-environment rule arrays.
- name: feature-revisions
x-displayName: Feature Revisions (legacy)
description: >-
Draft revisions for feature flags, including rules, scheduling, and
approval workflows.
**These are v1 endpoints.** New integrations should use the v2 Feature
Revisions endpoints.
- name: ramp-schedules
x-displayName: Ramp Schedules
description: >-
Multi-step rollout schedules that gradually increase feature rule traffic
over time, with optional real-time monitoring. Each step supports interval
timers, approval gates, and hold conditions. Monitored steps are backed by
a live analysis experiment that can automatically hold, roll back, or
advance the ramp based on guardrail and signal metric health.
- name: data-sources
x-displayName: Data Sources
description: >-
How GrowthBook connects and queries your data, including cached database
schema metadata (information schemas) for tables and columns.
- name: fact-tables
x-displayName: Fact Tables
description: Fact Tables describe the shape of your data warehouse tables
- name: fact-metrics
x-displayName: Fact Metrics
description: Fact Metrics are metrics built on top of Fact Table definitions
- name: metrics
x-displayName: Metrics (legacy)
description: Metrics used as goals and guardrails for experiments
- name: experiments
x-displayName: Experiments
description: Experiments (A/B Tests)
- name: namespaces
x-displayName: Namespaces
description: >-
Namespaces partition your user population into buckets so that experiments
using the same hash attribute do not overlap unintentionally. Each
namespace defines a 0–1 range and individual experiments claim sub-ranges
within it.
- name: snapshots
x-displayName: Experiment Snapshots
description: Experiment Snapshots (the individual updates of an experiment)
- name: dimensions
x-displayName: Dimensions
description: Dimensions used during experiment analysis
- name: segments
x-displayName: Segments
description: Segments used during experiment analysis
- name: reports
x-displayName: Experiment Reports
description: >-
Custom analysis reports built on top of experiment snapshots. Reports let
you re-run analysis with different metrics, date ranges, stats engines,
and other settings without modifying the underlying experiment.
- name: sdk-connections
x-displayName: SDK Connections
description: Client keys and settings for connecting SDKs to a GrowthBook instance
- name: visual-changesets
x-displayName: Visual Changesets
description: Groups of visual changes made by the visual editor to a single page
- name: saved-groups
x-displayName: Saved Groups
description: >-
Defined sets of attribute values which can be used with feature rules for
targeting features at particular users.
- name: saved-group-revisions
x-displayName: Saved Group Revisions
description: >-
Draft revisions for saved groups, including pending changes, approvals,
and lifecycle (publish, discard, revert).
Most callers can interact with these endpoints via shorthand actions
(`/items/add`, `/items/remove`, single-field PUTs) instead of authoring
JSON Patch ops directly. Pass `version: "new"` on edit endpoints to
auto-create a draft.
- name: constants
x-displayName: Constants
description: >-
**Beta** — these endpoints are new and may change in
backwards-incompatible ways.
Reusable named values referenced from feature flag values as `@const:key`
and resolved into the SDK payload at build time. String constants are
interpolated via `{{ @const:key }}`; JSON (object) constants are composed
via an `$extends` array. A constant's own keys **replace** what its
`$extends` bases provide, wholesale — constants are atomic building
blocks. (Config and feature values compose as deep, targeted patches
instead.)
- name: constant-revisions
x-displayName: Constant Revisions
description: >-
**Beta** — these endpoints are new and may change in
backwards-incompatible ways.
Draft revisions for constants, including pending changes, approvals, and
lifecycle (publish, discard, revert). Pass `version: "new"` on edit
endpoints to auto-create a draft.
- name: configs
x-displayName: Configs
description: >-
**Beta** — these endpoints are new and may change in
backwards-incompatible ways.
Reusable, typed, inheritable JSON objects referenced from feature flag
values as `@config:key`. A config carries a field `schema` (with
TypeScript/JSON Schema import-export) and a lineage `parent`. Inheritance
is expressed via `parent`, never an in-value `@config:` entry. Values
layer as a **deep, targeted patch**: a child (or a config-backed feature
value) restates only the leaves it changes and inherits the rest — unlike
a constant's `$extends`, whose own keys replace wholesale. Schema fields
colliding with a published ancestor's key follow 'base wins': identical
re-declarations are stripped with a warning, differing ones are rejected.
- name: config-revisions
x-displayName: Config Revisions
description: >-
**Beta** — these endpoints are new and may change in
backwards-incompatible ways.
Draft revisions for configs, including value and schema edits, schema
import (JSON Schema / TypeScript / inferred), approvals, and lifecycle
(publish, discard, revert). Publishing a schema change cascades the "base
wins" normalization to descendant configs; a publish that removes or
retypes fields descendants still use soft-blocks with a 422 unless the
request body sets `ignoreWarnings: true`. Pass `version: "new"` on edit
endpoints to auto-create a draft.
- name: releases
x-displayName: Releases
description: >-
**Beta** — these endpoints are new and may change in
backwards-incompatible ways.
Coordinated multi-entity publishing: publish a set of revisions across
Feature Flags, Saved Groups, configs, and constants as one all-or-nothing
operation, validated against the combined end-state instead of each
in-between state. Requires the `releases` commercial feature.
- name: custom-hooks
x-displayName: Custom Hooks
description: >-
Sandboxed JavaScript validation hooks that run when features, configs, or
their revisions are saved or published. Throwing an Error blocks the save;
`addWarning(msg)` raises a soft warning. Hooks are scoped by projects, or
pinned to a single feature/config via `entityType`/`entityId`; a
config-scoped hook also runs for every config inheriting from it (its
whole descendant lineage). Scope can be retargeted on update (or cleared
with nulls). Requires an enterprise plan; not available on GrowthBook
Cloud.
- name: organizations
x-displayName: Organizations
description: >-
Organizations are used for multi-org deployments where different teams can
run their own isolated feature flags and experiments. These endpoints are
only via a super-admin's Personal Access Token.
- name: members
x-displayName: Members
description: Members are users who have been invited to an organization.
- name: code-references
x-displayName: Code References
description: >-
Intended for use with our code reference CI utility,
[`gb-find-code-refs`](https://github.com/growthbook/gb-find-code-refs).
- name: archetypes
x-displayName: Archetypes
description: >-
Archetypes allow you to simulate the result of targeting rules on pre-set
user attributes
- name: queries
x-displayName: Queries
description: Retrieve queries used in experiments to calculate results.
- name: settings
x-displayName: Settings
description: Get the organization settings.
- name: attributes
x-displayName: Attributes
description: Used when targeting feature flags and experiments.
- name: usage
x-displayName: Usage
description: Usage information for metrics in experiments.
- name: meta
x-displayName: Meta
description: >-
Server metadata, including the running build's version and commit for
version-skew checks.
- name: ContextualBandits
x-displayName: Contextual Bandits
description: ''
- name: Dashboards
x-displayName: Dashboards
description: ''
- name: ContextualBanditQueries
x-displayName: Contextual Bandit Queries
description: ''
- name: CustomFields
x-displayName: Custom Fields
description: ''
- name: MetricGroups
x-displayName: Metric Groups
description: ''
- name: Teams
x-displayName: Teams
description: ''
- name: ExperimentTemplates
x-displayName: Experiment Templates
description: ''
- name: AnalyticsExplorations
x-displayName: Analytics Explorations
description: ''
- name: RampScheduleTemplates
x-displayName: Ramp Schedule Templates
description: Reusable step configurations for ramp schedules.
- name: Learnings
x-displayName: Learnings
description: >-
Saved learnings captured across experiments, including AI-discovered
patterns.
- name: Holdouts
x-displayName: Holdouts
description: >-
Hold a share of traffic out of all experiments to measure their combined
effect.
- name: AggregatedFactTable_model
x-displayName: Aggregated Fact Table
description:
- name: AnalyticsExploration_model
x-displayName: Analytics Exploration
description:
- name: Archetype_model
x-displayName: Archetype
description:
- name: Attribute_model
x-displayName: Attribute
description:
- name: CodeRef_model
x-displayName: Code Ref
description:
- name: Config_model
x-displayName: Config
description:
- name: ConfigKeyUsage_model
x-displayName: Config Key Usage
description:
- name: ConfigLineage_model
x-displayName: Config Lineage
description:
- name: ConfigReferences_model
x-displayName: Config References
description:
- name: ConfigRevision_model
x-displayName: Config Revision
description:
- name: ConfigRevisionActivityLogEntry_model
x-displayName: Config Revision Activity Log Entry
description: >-
- name: ConfigRevisionRef_model
x-displayName: Config Revision Ref
description:
- name: ConfigRevisionReview_model
x-displayName: Config Revision Review
description:
- name: ConfigSchemaExport_model
x-displayName: Config Schema Export
description:
- name: ConfigSchemaSource_model
x-displayName: Config Schema Source
description:
- name: ConfigSchemaVerify_model
x-displayName: Config Schema Verify
description:
- name: ConfigSchemaWarning_model
x-displayName: Config Schema Warning
description:
- name: Constant_model
x-displayName: Constant
description:
- name: ConstantReferences_model
x-displayName: Constant References
description:
- name: ConstantRevision_model
x-displayName: Constant Revision
description:
- name: ConstantRevisionActivityLogEntry_model
x-displayName: Constant Revision Activity Log Entry
description: >-
- name: ConstantRevisionRef_model
x-displayName: Constant Revision Ref
description:
- name: ConstantRevisionReview_model
x-displayName: Constant Revision Review
description: >-
- name: ContextualBandit_model
x-displayName: Contextual Bandit
description:
- name: ContextualBanditQuery_model
x-displayName: Contextual Bandit Query
description: >-
- name: CustomField_model
x-displayName: Custom Field
description:
- name: CustomHook_model
x-displayName: Custom Hook
description:
- name: Dashboard_model
x-displayName: Dashboard
description:
- name: DataSource_model
x-displayName: Data Source
description:
- name: Dimension_model
x-displayName: Dimension
description:
- name: Environment_model
x-displayName: Environment
description:
- name: EventUser_model
x-displayName: Event User
description:
- name: Experiment_model
x-displayName: Experiment
description:
- name: Experiment Rule_model
x-displayName: Experiment Rule
description:
- name: ExperimentAnalysisSettings_model
x-displayName: Experiment Analysis Settings
description: >-
- name: ExperimentDecisionFrameworkSettings_model
x-displayName: Experiment Decision Framework Settings
description: >-
- name: ExperimentMetric_model
x-displayName: Experiment Metric
description:
- name: ExperimentMetricOverrideEntry_model
x-displayName: Experiment Metric Override Entry
description: >-
- name: ExperimentResults_model
x-displayName: Experiment Results
description:
- name: ExperimentSnapshot_model
x-displayName: Experiment Snapshot
description:
- name: ExperimentTemplate_model
x-displayName: Experiment Template
description:
- name: ExperimentWithEnhancedStatus_model
x-displayName: Experiment With Enhanced Status
description: >-
- name: FactMetric_model
x-displayName: Fact Metric
description:
- name: FactTable_model
x-displayName: Fact Table
description:
- name: FactTableColumn_model
x-displayName: Fact Table Column
description:
- name: FactTableFilter_model
x-displayName: Fact Table Filter
description:
- name: FeatureBaseRule_model
x-displayName: Feature Base Rule
description:
- name: FeatureContextualBanditRefRule_model
x-displayName: Feature Contextual Bandit Ref Rule
description: >-
- name: FeatureDefinition_model
x-displayName: Feature Definition
description:
- name: FeatureEnvironmentV1_model
x-displayName: Feature Environment V1
description:
- name: FeatureEnvironmentV2_model
x-displayName: Feature Environment V2
description:
- name: FeatureExperimentRefRule_model
x-displayName: Feature Experiment Ref Rule
description: >-
- name: FeatureExperimentRule_model
x-displayName: Feature Experiment Rule
description: >-
- name: FeatureForceRule_model
x-displayName: Feature Force Rule
description:
- name: FeatureRevisionRef_model
x-displayName: Feature Revision Ref
description:
- name: FeatureRevisionSummary_model
x-displayName: Feature Revision Summary
description: >-
- name: FeatureRevisionV1_model
x-displayName: Feature Revision V1
description:
- name: FeatureRevisionV2_model
x-displayName: Feature Revision V2
description:
- name: FeatureRolloutRule_model
x-displayName: Feature Rollout Rule
description:
- name: FeatureRuleV1_model
x-displayName: Feature Rule V1
description:
- name: FeatureRuleV2_model
x-displayName: Feature Rule V2
description:
- name: FeatureSafeRolloutRule_model
x-displayName: Feature Safe Rollout Rule
description: >-
- name: FeatureV1_model
x-displayName: Feature V1
description:
- name: FeatureV2_model
x-displayName: Feature V2
description:
- name: FeatureWithRevisionsV1_model
x-displayName: Feature With Revisions V1
description: >-
- name: FeatureWithRevisionsV2_model
x-displayName: Feature With Revisions V2
description: >-
- name: Holdout_model
x-displayName: Holdout
description:
- name: InformationSchema_model
x-displayName: Information Schema
description:
- name: InformationSchemaTable_model
x-displayName: Information Schema Table
description: >-
- name: Learning_model
x-displayName: Learning
description:
- name: LookbackOverride_model
x-displayName: Lookback Override
description:
- name: Member_model
x-displayName: Member
description:
- name: Metric_model
x-displayName: Metric
description:
- name: MetricAnalysis_model
x-displayName: Metric Analysis
description:
- name: MetricGroup_model
x-displayName: Metric Group
description:
- name: MetricUsage_model
x-displayName: Metric Usage
description:
- name: Namespace_model
x-displayName: Namespace
description:
- name: NamespaceExperimentMember_model
x-displayName: Namespace Experiment Member
description: >-
- name: Organization_model
x-displayName: Organization
description:
- name: PaginationFields_model
x-displayName: Pagination Fields
description:
- name: Project_model
x-displayName: Project
description:
- name: Query_model
x-displayName: Query
description:
- name: RampSchedule_model
x-displayName: Ramp Schedule
description:
- name: RampScheduleTemplate_model
x-displayName: Ramp Schedule Template
description:
- name: Report_model
x-displayName: Report
description:
- name: RequireReviewRule_model
x-displayName: Require Review Rule
description:
- name: RequireReviewRuleInput_model
x-displayName: Require Review Rule Input
description: >-
- name: RevisionIdRef_model
x-displayName: Revision Id Ref
description:
- name: Safe Rollout Rule_model
x-displayName: Safe Rollout Rule
description:
- name: SavedGroup_model
x-displayName: Saved Group
description:
- name: SavedGroupApprovalRule_model
x-displayName: Saved Group Approval Rule
description: >-
- name: SavedGroupReferences_model
x-displayName: Saved Group References
description:
- name: SavedGroupRevision_model
x-displayName: Saved Group Revision
description:
- name: SavedGroupRevisionActivityLogEntry_model
x-displayName: Saved Group Revision Activity Log Entry
description: >-
- name: SavedGroupRevisionRef_model
x-displayName: Saved Group Revision Ref
description: >-
- name: SavedGroupRevisionReview_model
x-displayName: Saved Group Revision Review
description: >-
- name: ScheduleRule_model
x-displayName: Schedule Rule
description:
- name: ScheduledStopPlan_model
x-displayName: Scheduled Stop Plan
description:
- name: SdkConnection_model
x-displayName: Sdk Connection
description:
- name: Segment_model
x-displayName: Segment
description:
- name: Settings_model
x-displayName: Settings
description:
- name: Targeting Rule_model
x-displayName: Targeting Rule
description:
- name: Team_model
x-displayName: Team
description:
- name: VisualChange_model
x-displayName: Visual Change
description:
- name: VisualChangeset_model
x-displayName: Visual Changeset
description:
paths:
/v1/holdouts/{id}/start:
post:
tags:
- Holdouts
summary: Start the Holdout's Active Period
description: >-
Feature Flags and Experiments can be added during this period while the
Holdout measures their cumulative impact.
operationId: startHoldout
parameters:
- name: id
in: path
required: true
description: ''
schema:
type: string
responses:
'200':
description: Resource created
content:
application/json:
schema:
type: object
properties:
holdout:
$ref: '#/components/schemas/Holdout'
required:
- holdout
additionalProperties: false
'409':
description: Conflict
content:
application/json:
schema:
type: object
description: Resource is not in a valid status for this operation
properties:
message:
type: string
code:
type: string
enum:
- invalid_status
details:
$ref: '#/components/schemas/ApiErrorInvalidStatusDetails'
required:
- message
- code
- details
x-codeSamples:
- lang: cURL
source: >-
curl -X POST 'https://api.growthbook.io/api/v1/holdouts/{id}/start'
\
-H 'Authorization: Bearer YOUR_API_KEY'
components:
schemas:
Holdout:
type: object
properties:
id:
type: string
dateCreated:
format: date-time
type: string
dateUpdated:
format: date-time
type: string
name:
type: string
description:
type: string
maxLength: 10000
projects:
description: >-
Project IDs this Holdout applies to. An empty array means All
Projects.
type: array
items:
type: string
owner:
description: The userId of the owner (or raw owner name/email for legacy records)
type: string
ownerEmail:
description: >-
The email address of the owner, when the owner can be resolved to a
known user.
type: string
tags:
type: array
items:
type: string
archived:
type: boolean
stage:
description: >-
Lifecycle stage of the Holdout. Use the start, start-analysis, and
stop endpoints to move through the lifecycle.
type: string
enum:
- draft
- running
- analysis-period
- stopped
trackingKey:
type: string
experimentId:
description: >-
ID of the companion experiment that stores this Holdout's analysis.
Use it with the experiment results endpoints (e.g. GET
/experiments/{experimentId}/results). Pass phase=0 for results
across the whole Holdout period, or phase=1 for results limited to
the analysis period.
type: string
skipAsDefaultHoldout:
description: >-
When true, this Holdout is not selected automatically when creating
Feature Flags or experiments in Projects assigned to the Holdout.
type: boolean
holdoutSize:
description: >-
Proportion of traffic placed in the holdout group (e.g. 0.05 for
5%). An equally sized comparison group is sampled from the remaining
traffic for measurement, so 2× this value enters the holdout
experiment in total. Must be greater than 0 and at most 0.5.
type: number
exclusiveMinimum: 0
maximum: 0.5
hashAttribute:
description: Attribute used to assign users to the Holdout.
type: string
targetingCondition:
description: Targeting condition as a JSON string.
type: string
savedGroupTargeting:
type: array
items:
type: object
properties:
match:
type: string
enum:
- all
- none
- any
ids:
type: array
items:
type: string
required:
- match
- ids
additionalProperties: false
datasourceId:
type: string
assignmentQueryId:
type: string
goalMetrics:
type: array
items:
type: string
secondaryMetrics:
type: array
items:
type: string
statsEngine:
description: Statistics engine used to analyze this Holdout.
type: string
enum:
- bayesian
- frequentist
variations:
type: array
items:
type: object
properties:
variationId:
type: string
key:
type: string
name:
type: string
description:
type: string
maxLength: 10000
required:
- variationId
- key
- name
additionalProperties: false
environments:
description: >-
Per-environment state, keyed by environment ID. Environments not
present are disabled.
type: object
propertyNames:
type: string
additionalProperties:
type: object
properties:
enabled:
description: Whether the Holdout is active in this environment.
type: boolean
required:
- enabled
additionalProperties: false
linkedFeatures:
description: >-
Feature Flags held out by this Holdout. Manage these through the
Feature Flag endpoints.
type: array
items:
type: object
properties:
id:
type: string
dateAdded:
format: date-time
type: string
required:
- id
- dateAdded
additionalProperties: false
linkedExperiments:
description: >-
Experiments held out by this Holdout. Manage these through the
experiment endpoints.
type: array
items:
type: object
properties:
id:
type: string
dateAdded:
format: date-time
type: string
required:
- id
- dateAdded
additionalProperties: false
dateStarted:
format: date-time
type: string
analysisStartDate:
description: When the Holdout entered its analysis period.
type: string
format: date-time
dateStopped:
format: date-time
type: string
statusUpdateSchedule:
anyOf:
- description: >-
Automatic stage transitions for the Holdout. Dates must be
consecutive: `startAt` before `startAnalysisPeriodAt` before
`stopAt`. Send `null` to delete the schedule.
type: object
properties:
startAt:
description: >-
ISO datetime to move the Holdout from `draft` to `running`.
Must be in the future while the Holdout is still a draft.
type: string
format: date-time
startAnalysisPeriodAt:
description: >-
ISO datetime to move the Holdout from `running` to
`analysis-period`. Requires `startAt` while the Holdout is
still a draft.
type: string
format: date-time
stopAt:
description: >-
ISO datetime to stop the Holdout. Requires
`startAnalysisPeriodAt` unless the analysis period has
already begun.
type: string
format: date-time
additionalProperties: false
- type: 'null'
nextScheduledStatusUpdate:
anyOf:
- description: The next stage transition that will run automatically.
type: object
properties:
type:
type: string
enum:
- start
- startAnalysisPeriod
- stop
date:
format: date-time
type: string
required:
- type
- date
additionalProperties: false
- type: 'null'
required:
- id
- dateCreated
- dateUpdated
- name
- description
- projects
- owner
- tags
- archived
- stage
- trackingKey
- experimentId
- skipAsDefaultHoldout
- holdoutSize
- hashAttribute
- targetingCondition
- datasourceId
- assignmentQueryId
- goalMetrics
- secondaryMetrics
- variations
- environments
- linkedFeatures
- linkedExperiments
additionalProperties: false
ApiErrorInvalidStatusDetails:
type: object
properties:
currentStatus:
type: string
expectedStatuses:
type: array
items:
type: string
required:
- currentStatus
- expectedStatuses
additionalProperties: false
securitySchemes:
bearerAuth:
type: http
scheme: bearer
description: >
If using Bearer auth, pass the Secret Key as the token:
```bash
curl https://api.growthbook.io/api/v1/features -H "Authorization:
Bearer secret_abc123DEF456"
```
basicAuth:
type: http
scheme: basic
description: >
If using HTTP Basic auth, pass the Secret Key as the username and leave
the password blank:
```bash
curl https://api.growthbook.io/api/v1/features -u secret_abc123DEF456:
# The ":" at the end stops curl from asking for a password
```
````