Create a feature flag

Get a list of all feature flags in the given project. You can include information specific to different environments by adding `env` query parameter. For example, setting `env=production` adds configuration details about your production environment to the response. You can also filter feature flags by tag with the `tag` query parameter. > #### Recommended use > > This endpoint can return a large amount of information. We recommend using some or all of these query parameters to decrease response time and overall payload size: `limit`, `env`, `query`, and `filter=creationDate`. ### Filtering flags You can filter on certain fields using the `filter` query parameter. For example, setting `filter=query:dark-mode,tags:beta+test` matches flags with the string `dark-mode` in their key or name, ignoring case, which also have the tags `beta` and `test`. The `filter` query parameter supports the following arguments: | Filter argument | Description | Example | |-----------------------|-------------|----------------------| | `applicationEvaluated` | A string. It filters the list to flags that are evaluated in the application with the given key. | `filter=applicationEvaluated:com.launchdarkly.cafe` | | `archived` | (deprecated) A boolean value. It filters the list to archived flags. | Use `filter=state:archived` instead | | `contextKindsEvaluated` | A `+`-separated list of context kind keys. It filters the list to flags which have been evaluated in the past 30 days for all of the context kinds in the list. | `filter=contextKindsEvaluated:user+application` | | `codeReferences.max` | An integer value. Use `0` to return flags that do not have code references. | `filter=codeReferences.max:0` | | `codeReferences.min` | An integer value. Use `1` to return flags that do have code references. | `filter=codeReferences.min:1` | | `creationDate` | An object with an optional `before` field whose value is Unix time in milliseconds. It filters the list to flags created before the date. | `filter=creationDate:{"before":1690527600000}` | | `evaluated` | An object that contains a key of `after` and a value in Unix time in milliseconds. It filters the list to all flags that have been evaluated since the time you specify, in the environment provided. This filter requires the `filterEnv` filter. | `filter=evaluated:{"after":1690527600000},filterEnv:production` | | `filterEnv` | A valid environment key. You must use this field for filters that are environment-specific. If there are multiple environment-specific filters, you only need to include this field once. | `filter=evaluated:{"after": 1590768455282},filterEnv:production` | | `guardedRollout` | A string, one of `any`, `monitoring`, `regressed`, `rolledBack`, `completed`, `archived`. It filters the list to flags that are part of guarded rollouts. | `filter=guardedRollout:monitoring` | | `hasExperiment` | A boolean value. It filters the list to flags that are used in an experiment. | `filter=hasExperiment:true` | | `maintainerId` | A valid member ID. It filters the list to flags that are maintained by this member. | `filter=maintainerId:12ab3c45de678910abc12345` | | `maintainerTeamKey` | A string. It filters the list to flags that are maintained by the team with this key. | `filter=maintainerTeamKey:example-team-key` | | `query` | A string. It filters the list to flags that include the specified string in their key or name. It is not case sensitive. | `filter=query:example` | | `releasePipeline` | A release pipeline key. It filters the list to flags that are either currently active in the release pipeline or have completed the release pipeline. | `filter=releasePipeline:default-release-pipeline` | | `state` | A string, either `live`, `deprecated`, or `archived`. It filters the list to flags in this state. | `filter=state:archived` | | `sdkAvailability` | A string, one of `client`, `mobile`, `anyClient`, `server`. Using `client` filters the list to flags whose client-side SDK availability is set to use the client-side ID. Using `mobile` filters to flags set to use the mobile key. Using `anyClient` filters to flags set to use either the client-side ID or the mobile key. Using `server` filters to flags set to use neither, that is, to flags only available in server-side SDKs. | `filter=sdkAvailability:client` | | `tags` | A `+`-separated list of tags. It filters the list to flags that have all of the tags in the list. | `filter=tags:beta+test` | | `type` | A string, either `temporary` or `permanent`. It filters the list to flags with the specified type. | `filter=type:permanent` | The documented values for the `filter` query are prior to URL encoding. For example, the `+` in `filter=tags:beta+test` must be encoded to `%2B`. By default, this endpoint returns all flags. You can page through the list with the `limit` parameter and by following the `first`, `prev`, `next`, and `last` links in the returned `_links` field. These links will not be present if the pages they refer to don't exist. For example, the `first` and `prev` links will be missing from the response on the first page. ### Sorting flags You can sort flags based on the following fields: - `creationDate` sorts by the creation date of the flag. - `key` sorts by the key of the flag. - `maintainerId` sorts by the flag maintainer. - `name` sorts by flag name. - `tags` sorts by tags. - `targetingModifiedDate` sorts by the date that the flag's targeting rules were last modified in a given environment. It must be used with `env` parameter and it can not be combined with any other sort. If multiple `env` values are provided, it will perform sort using the first one. For example, `sort=-targetingModifiedDate&env=production&env=staging` returns results sorted by `targetingModifiedDate` for the `production` environment. - `type` sorts by flag type All fields are sorted in ascending order by default. To sort in descending order, prefix the field with a dash ( - ). For example, `sort=-name` sorts the response by flag name in descending order. ### Expanding response LaunchDarkly supports the `expand` query param to include additional fields in the response, with the following fields: - `codeReferences` includes code references for the feature flag - `evaluation` includes evaluation information within returned environments, including which context kinds the flag has been evaluated for in the past 30 days - `migrationSettings` includes migration settings information within the flag and within returned environments. These settings are only included for migration flags, that is, where `purpose` is `migration`. For example, `expand=evaluation` includes the `evaluation` field in the response. ### Migration flags For migration flags, the cohort information is included in the `rules` property of a flag's response, and default cohort information is included in the `fallthrough` property of a flag's response. To learn more, read [Migration Flags](https://launchdarkly.com/docs/home/flags/migration).