feature-flag-service.md

easyTradeFeatureFlagService

A java rest service with swagger. It allows to get and update feature flag data.

Technologies used

• Java
• Docker

Endpoints or logic

Swagger

---

Swagger endpoint is available at:

# when deployed with k8s
http://{IP_ADDRESS}/feature-flag-service/swagger-ui/index.html

Api v1

---

GET /v1/flags/{flagId} (Get flag)

Parameters

name	type	data type	description
flagId	not required	string	The id of a flag

To get all flags, use the same approach but without {FLAGID} parameter.

Example cURL

curl -X GET "http://{IP_ADDRESS}:8094/v1/flags/db_not_responding" -H  "accept: */*"

---

GET /v1/flags?tag={tag} (Get flags by tag)

Parameters

name	type	data type	description
tag	required	string	The flags' tag

Example cURL

curl -X GET "http://{IP_ADDRESS}:8094/v1/flags?tag=problem_pattern" -H  "accept: */*"

---

PUT /v1/flags/{flagId} (Enable/disable flag)

Parameters

name	type	data type	description
flagId	required	string	The id of a flag
enabled	required	boolean	Is the flag enabled or not

Example cURL

curl -X PUT "http://{IP_ADDRESS}:8094/v1/flags/{flagId}/" -H  "accept: application/json" -d "{\"enabled\": true}"

To disable the flag, use the same approach but with the "enabled" parameter set to false.

Example of JSON body

{
  "enabled": true
}