APIs Built From the Ground Up

Our product was built by developers, for developers. That’s why every product feature is built API-first and tested thoroughly so you know it’s reliable and complete. Our full-featured APIs enable you to build custom integrations, export raw data and build custom scripts for automating your feature flag workflow.

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Some awesome things you can do

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Automatically change feature flag status’ using other tools in your stack.

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Extract flag variation data and join it with additional event data stored in a data warehouse.

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Update targeting rules dynamically based on business logic stored in other tools.

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Integrate LaunchDarkly into your own developer dashboards.

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Build automations for copying variation rules, segments & flags across projects.

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Create your own UIs to visualize and manage your feature flags.

Create a new boolean feature flag named "New checkout flow".

const data = {
  "name": "New checkout flow",
  "key": "new-checkout-flow",
  "variations": [
    {
      "value": true,
    },
    {
      "value": false,
    }
  ],
};

fetch("https://app.launchdarkly.com/api/v2/flags/app", {
  method: "POST",
  headers: {
    "Authorization": "YOUR API ACCESS TOKEN",
    "Content-Type": "application/json",
  },
  body: JSON.stringify(data)
})
.then(response => response.json())
.then(flag => {
  // Do something with the newly created flag
})

Toggle "new-checkout-flow" off.

const data = [
  { 
    "op": "replace", 
    "path": "/environments/production/on", 
    "value": false 
  }
];

fetch("https://app.launchdarkly.com/api/v2/flags/app/new-checkout-flow", {
  method: "PATCH",
  headers: {
    "Authorization": "YOUR API ACCESS TOKEN",
    "Content-Type": "application/json",
  },
  body: JSON.stringify(data)
})
.then(response => response.json())
.then(flag => {
  // Do something with the newly updated flag
});

Find users with email "useremail@email.com" .

fetch("https://app.launchdarkly.com/api/v2/user-search/app/production?q=useremail@email.com", {
  method: "GET",
  headers: {
    "Authorization": "YOUR API ACCESS TOKEN",
  }
})
.then(response => response.json())
.then(flag => {
  // Do something with user/s
});

Copy flag settings from the production environment to the test environment.

const data = {
  "projKey": "default",
  "flagKey": "new-checkout-flow",
  "envKey": "production",
  "source":
    {
      "key": "production",
    },
  "target":  {
    "key": "test",
    },
  "includedActions": ["updateRules", "updateOffVariation"]
}

fetch("https://app.launchdarkly.com/api/v2/flags/app/new-checkout-flow/copy", {
  method: "POST",
  headers: {
    "Authorization": "YOUR API ACCESS TOKEN",
    "Content-Type": "application/json",
  },
  body: JSON.stringify(data)
})
.then(response => response.json())
.then(flag => {
  // Do something with the newly created flag
})

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