Applications (beta)

This feature is in beta

To use this feature, pass in a header including the LD-API-Version key with value set to beta. Use this header with each call. To learn more, read Beta resources.

Resources that are in beta are still undergoing testing and development. They may change without notice, including becoming backwards incompatible.

The applications API lets you create, update, delete, and search for applications and application versions.

Each application includes information about the app you're creating, and a set of versions of the app that you've released. You can use applications to target particular application versions in your feature flags more easily, and to handle unsupported application versions more gracefully.

In addition to creating applications through the applications API, you can also create applications in the LaunchDarkly user interface. To learn more, read Applications and application versions. LaunchDarkly also creates applications and application versions automatically when a LaunchDarkly SDK evaluates a feature flag for a context that includes application information. To learn more, read Automatic environment attributes.

You can use an application in any project in your LaunchDarkly account.

Filtering applications and application versions

The filter parameter supports the following operators: equals, notEquals, anyOf, startsWith.

You can also combine filters in the following ways:

  • Use a comma (,) as an AND operator
  • Use a vertical bar (|) as an OR operator
  • Use parentheses (()) to group filters

Supported fields and operators

You can only filter certain fields in applications when using the filter parameter. Additionally, you can only filter some fields with certain operators.

When you search for applications, the filter parameter supports the following fields and operators:

Field
 Description Supported operators
key The application or application version key, a unique identifier equals, notEquals, anyOf
name The application name or application version name equals, notEquals, anyOf, startsWith
autoAdded Whether the application or application version was automatically created because it was included in a context when a LaunchDarkly SDK evaluated a feature flag, or was created through the LaunchDarkly UI or REST API equals, notEquals
kind The application kind, one of mobile, server, browser. Only available for Get applications. equals, notEquals, anyOf
supported Whether a mobile application version is supported or unsupported. Only available for Get application versions by application key. equals, notEquals

For example, the filter ?filter=kind anyOf ["mobile", "server"] matches applications whose kind is either mobile or server. The filter is not case-sensitive.

The documented values for filter query parameters are prior to URL encoding. For example, the [ in ?filter=kind anyOf ["mobile", "server"] must be encoded to %5B.

Sorting applications and application versions

LaunchDarkly supports the following fields for sorting:

  • name sorts by application name.
  • creationDate sorts by the creation date of the application.

By default, the sort is in ascending order. Use - to sort in descending order. For example, ?sort=name sorts the response by application name in ascending order, and ?sort=-name sorts in descending order.

Get applications

Get a list of applications.

Expanding the applications response

LaunchDarkly supports expanding the "Get applications" response to include additional fields.

To expand the response, append the expand query parameter and include the following:

  • flags includes details on the flags that have been evaluated by the application

For example, use ?expand=flags to include the flags field in the response. By default, this field is not included in the response.

Request
query Parameters
filter
string <string>

Accepts filter by key, name, kind, and autoAdded. To learn more about the filter syntax, read Filtering applications and application versions.

limit
integer <int64>

The number of applications to return. Defaults to 10.

offset
integer <int64>

Where to start in the list. Use this with pagination. For example, an offset of 10 skips the first ten items and then returns the next items in the list, up to the query limit.

sort
string <string>

Accepts sorting order and fields. Fields can be comma separated. Possible fields are creationDate, name. Examples: sort=name sort by names ascending, sort=-name,creationDate sort by names descending and creationDate ascending.

expand
string <string>

A comma-separated list of properties that can reveal additional information in the response. Options: flags.

Responses
200

Applications response

400

Invalid request

401

Invalid access token

403

Forbidden

404

Invalid resource identifier

429

Rate limited

get/api/v2/applications
Request samples 
Response samples 
application/json
{
  • "_links": {
    },
  • "items": [
    ],
  • "totalCount": 1
}
Get application by key
Retrieve an application by the application key.


Expanding the application response


LaunchDarkly supports expanding the "Get application" response to include additional fields.


To expand the response, append the expand query parameter and include the following:


    

  • flags includes details on the flags that have been evaluated by the application
    • 



For example, use ?expand=flags to include the flags field in the response. By default, this field is not included in the response.


Request 
path Parameters
applicationKey
required
string <string> 
The application key


 
query Parameters
expand
string <string> 
A comma-separated list of properties that can reveal additional information in the response. Options: flags.


 
Responses 
200
Application response


400
Invalid request


401
Invalid access token


403
Forbidden


404
Invalid resource identifier


429
Rate limited


get/api/v2/applications/{applicationKey}
Request samples 
Response samples 
application/json
{
  • "flags": {
    },
  • "_access": {
    },
  • "_links": {
    },
  • "_version": 0,
  • "autoAdded": true,
  • "creationDate": 0,
  • "description": "The LaunchDarkly Cafe app",
  • "key": "com.launchdarkly.cafe",
  • "kind": "mobile",
  • "_maintainer": {
    },
  • "name": "LaunchDarklyCafe"
}
Update application
Update an application. You can update the description and kind fields. Requires a JSON patch representation of the desired changes to the application. To learn more, read Updates.


Request 
path Parameters
applicationKey
required
string <string> 
The application key


 
Request Body schema: application/json
required
 Array 
op
required
string
The type of operation to perform


 
path
required
string
A JSON Pointer string specifying the part of the document to operate on


 
value
any
A JSON value used in "add", "replace", and "test" operations


 
Responses 
200
Application response


400
Invalid request


401
Invalid access token


403
Forbidden


404
Invalid resource identifier


429
Rate limited


patch/api/v2/applications/{applicationKey}
Request samples 
application/json
[
  • {
    }
]
Response samples 
application/json
{
  • "flags": {
    },
  • "_access": {
    },
  • "_links": {
    },
  • "_version": 0,
  • "autoAdded": true,
  • "creationDate": 0,
  • "description": "The LaunchDarkly Cafe app",
  • "key": "com.launchdarkly.cafe",
  • "kind": "mobile",
  • "_maintainer": {
    },
  • "name": "LaunchDarklyCafe"
}
Delete application
Delete an application.


Request 
path Parameters
applicationKey
required
string <string> 
The application key


 
Responses 
204
Action succeeded


401
Invalid access token


403
Forbidden


404
Invalid resource identifier


429
Rate limited


delete/api/v2/applications/{applicationKey}
Request samples 
Response samples 
application/json
{
  • "code": "unauthorized",
  • "message": "Invalid access token"
}
Get application versions by application key
Get a list of versions for a specific application in an account.


Request 
path Parameters
applicationKey
required
string <string> 
The application key


 
query Parameters
filter
string <string> 
Accepts filter by key, name, supported, and autoAdded. To learn more about the filter syntax, read Filtering applications and application versions.


 
limit
integer <int64> 
The number of versions to return. Defaults to 50.


 
offset
integer <int64> 
Where to start in the list. Use this with pagination. For example, an offset of 10 skips the first ten items and then returns the next items in the list, up to the query limit.


 
sort
string <string> 
Accepts sorting order and fields. Fields can be comma separated. Possible fields are creationDate, name. Examples: sort=name sort by names ascending, sort=-name,creationDate sort by names descending and creationDate ascending.


 
Responses 
200
Application versions response


400
Invalid request


401
Invalid access token


403
Forbidden


404
Invalid resource identifier


429
Rate limited


get/api/v2/applications/{applicationKey}/versions
Request samples 
Response samples 
application/json
{
  • "_links": {
    },
  • "items": [
    ],
  • "totalCount": 1
}
Update application version
Update an application version. You can update the supported field. Requires a JSON patch representation of the desired changes to the application version. To learn more, read Updates.


Request 
path Parameters
applicationKey
required
string <string> 
The application key


 
versionKey
required
string <string> 
The application version key


 
Request Body schema: application/json
required
 Array 
op
required
string
The type of operation to perform


 
path
required
string
A JSON Pointer string specifying the part of the document to operate on


 
value
any
A JSON value used in "add", "replace", and "test" operations


 
Responses 
200
Application version response


400
Invalid request


401
Invalid access token


403
Forbidden


404
Invalid resource identifier


429
Rate limited


patch/api/v2/applications/{applicationKey}/versions/{versionKey}
Request samples 
application/json
[
  • {
    }
]
Response samples 
application/json
{
  • "_access": {
    },
  • "_links": {
    },
  • "_version": 0,
  • "autoAdded": true,
  • "creationDate": 0,
  • "key": "2",
  • "name": "01.02.03",
  • "supported": true
}
Delete application version
Delete an application version.


Request 
path Parameters
applicationKey
required
string <string> 
The application key


 
versionKey
required
string <string> 
The application version key


 
Responses 
204
Action succeeded


401
Invalid access token


403
Forbidden


404
Invalid resource identifier


429
Rate limited


delete/api/v2/applications/{applicationKey}/versions/{versionKey}
Request samples 
Response samples 
application/json
{
  • "code": "unauthorized",
  • "message": "Invalid access token"
}
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