@azure/app-configuration/dist/commonjs/featureFlag.js

An isomorphic client library for the Azure App Configuration service.

var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var featureFlag_exports = {};
__export(featureFlag_exports, {
  FeatureFlagHelper: () => FeatureFlagHelper,
  featureFlagContentType: () => featureFlagContentType,
  featureFlagPrefix: () => featureFlagPrefix,
  isFeatureFlag: () => isFeatureFlag,
  parseFeatureFlag: () => parseFeatureFlag
});
module.exports = __toCommonJS(featureFlag_exports);
var import_logger = require("./logger.js");
const featureFlagPrefix = ".appconfig.featureflag/";
const featureFlagContentType = "application/vnd.microsoft.appconfig.ff+json;charset=utf-8";
const FeatureFlagHelper = {
  /**
   * Takes the FeatureFlag (JSON) and returns a ConfigurationSetting (with the props encodeed in the value).
   */
  toConfigurationSettingParam: (featureFlag) => {
    import_logger.logger.info("Encoding FeatureFlag value in a ConfigurationSetting:", featureFlag);
    if (!featureFlag.value) {
      import_logger.logger.error("FeatureFlag has an unexpected value", featureFlag);
      throw new TypeError(`FeatureFlag has an unexpected value - ${featureFlag.value}`);
    }
    let key = featureFlag.key;
    if (typeof featureFlag.key === "string" && !featureFlag.key.startsWith(featureFlagPrefix)) {
      key = featureFlagPrefix + featureFlag.key;
    }
    const jsonFeatureFlagValue = {
      id: featureFlag.value.id ?? key.replace(featureFlagPrefix, ""),
      enabled: featureFlag.value.enabled,
      description: featureFlag.value.description,
      conditions: {
        client_filters: featureFlag.value.conditions.clientFilters,
        requirement_type: featureFlag.value.conditions.requirementType ?? "Any"
      },
      display_name: featureFlag.value.displayName
    };
    const configSetting = {
      ...featureFlag,
      key,
      value: JSON.stringify(jsonFeatureFlagValue)
    };
    return configSetting;
  }
};
function parseFeatureFlag(setting) {
  import_logger.logger.info("Parsing the value to return the FeatureFlagValue", setting);
  if (!isFeatureFlag(setting)) {
    import_logger.logger.error("Invalid FeatureFlag input", setting);
    throw TypeError(
      `Setting with key ${setting.key} is not a valid FeatureFlag, make sure to have the correct content-type and a valid non-null value.`
    );
  }
  const jsonFeatureFlagValue = JSON.parse(setting.value);
  let key = setting.key;
  if (typeof setting.key === "string" && !setting.key.startsWith(featureFlagPrefix)) {
    key = featureFlagPrefix + setting.key;
  }
  const featureflag = {
    ...setting,
    value: {
      id: jsonFeatureFlagValue.id,
      enabled: jsonFeatureFlagValue.enabled ?? false,
      description: jsonFeatureFlagValue.description,
      displayName: jsonFeatureFlagValue.display_name,
      conditions: jsonFeatureFlagValue.conditions ? {
        clientFilters: jsonFeatureFlagValue.conditions.client_filters,
        requirementType: jsonFeatureFlagValue.conditions.requirement_type
      } : { clientFilters: [] }
    },
    key,
    contentType: featureFlagContentType
  };
  return featureflag;
}
function isFeatureFlag(setting) {
  return setting && setting.contentType === featureFlagContentType && typeof setting.value === "string";
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  FeatureFlagHelper,
  featureFlagContentType,
  featureFlagPrefix,
  isFeatureFlag,
  parseFeatureFlag
});
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