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Introducing License Enforcement in Socket
Ensure open-source compliance with Socket’s License Enforcement Beta. Set up your License Policy and secure your software!
Feature flagging should not be so complicated.
Mr Flagly is a decentralized feature flagging system written in Rust with bindings for other languages.
It does not depend on third party services or require you to deploy services and databases to manage.
Supported feature flag definition sources:
Setup your flag service:
use mrflagly::service::{FlagService, FlagServiceOptions};
let flag_service = FlagService::new(FlagServiceOptions {
finder_type: mrflagly::service::types::FlagFinderType::URL,
url: "https://path/to/hosted/json/file",
refresh_interval: 600,
data: None,
env_var: None,
})
Then, to check for feature flag:
if flag_service.enabled("feature_x", false /* default value */, Some(HashMap::from([(String::from("user_id"), String::from("123")),])) /* optional context */) {
// do something
}
import mrflagly
flag_service = mrflagly.FlagService(url="https://path/to/hosted/json/file")
if flag_service.enabled("feature_x", default=False, context={"foo": "bar"}):
# do something
finder_type
: (NULL, URL, JSON, ENVVAR)url
: URL to download feature flag json datarefresh_interval
: How often to poll the feature flag data endpointdata
: Instead of hosting feature flag data from URL, you can provide it as a json blobenv_var
: Provide feature flag data in environment variableJSON format for feature flag data:
{
"my_feature": {
"rollout": 100
},
"my_feature_with_variants": {
"rollout": 0,
"variants" {
"user_id": ["123"],
"company_id": ["123"]
}
}
}
JSON config data:
{
"feature": {
"rollout": 0,
"variants": {
"customer_id": ["123"]
}
}
}
Usage:
import mrflagly
import json
flag_service = mrflagly.FlagService(
data=json.dumps({"feature": {"rollout": 0, "variants": {"customer_id": ["123"]}}}))
if flag_service.enabled("feature_x", default=False, context={"customer_id": "123"}):
# do something
FAQs
No nonsense feature flagging system
We found that mrflagly demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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