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aiskillstore/azure-appconfiguration-ts

Name: azure-appconfiguration-ts
Author: aiskillstore

skills/sickn33/azure-appconfiguration-ts/SKILL.md

npx skillsauth add aiskillstore/marketplace azure-appconfiguration-ts

Clean

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Clean

SemgrepStatic code analysis for vulnerabilities

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mcp-scan (Snyk)Model Context Protocol security validation

Skipped

Snyk (dep)Open source security scanning

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Socket.devSupply chain security analysis

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VirusTotalMulti-engine malware detection

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OWASP Dep-Check

Azure App Configuration SDK for TypeScript

Centralized configuration management with feature flags and dynamic refresh.

Installation

# Low-level CRUD SDK
npm install @azure/app-configuration @azure/identity

# High-level provider (recommended for apps)
npm install @azure/app-configuration-provider @azure/identity

# Feature flag management
npm install @microsoft/feature-management

Environment Variables

AZURE_APPCONFIG_ENDPOINT=https://<your-resource>.azconfig.io
# OR
AZURE_APPCONFIG_CONNECTION_STRING=Endpoint=https://...;Id=...;Secret=...

Authentication

import { AppConfigurationClient } from "@azure/app-configuration";
import { DefaultAzureCredential } from "@azure/identity";

// DefaultAzureCredential (recommended)
const client = new AppConfigurationClient(
  process.env.AZURE_APPCONFIG_ENDPOINT!,
  new DefaultAzureCredential()
);

// Connection string
const client2 = new AppConfigurationClient(
  process.env.AZURE_APPCONFIG_CONNECTION_STRING!
);

CRUD Operations

Create/Update Settings

// Add new (fails if exists)
await client.addConfigurationSetting({
  key: "app:settings:message",
  value: "Hello World",
  label: "production",
  contentType: "text/plain",
  tags: { environment: "prod" },
});

// Set (create or update)
await client.setConfigurationSetting({
  key: "app:settings:message",
  value: "Updated value",
  label: "production",
});

// Update with optimistic concurrency
const existing = await client.getConfigurationSetting({ key: "myKey" });
existing.value = "new value";
await client.setConfigurationSetting(existing, { onlyIfUnchanged: true });

Read Settings

// Get single setting
const setting = await client.getConfigurationSetting({
  key: "app:settings:message",
  label: "production",  // optional
});
console.log(setting.value);

// List with filters
const settings = client.listConfigurationSettings({
  keyFilter: "app:*",
  labelFilter: "production",
});

for await (const setting of settings) {
  console.log(`${setting.key}: ${setting.value}`);
}

Delete Settings

await client.deleteConfigurationSetting({
  key: "app:settings:message",
  label: "production",
});

Lock/Unlock (Read-Only)

// Lock
await client.setReadOnly({ key: "myKey", label: "prod" }, true);

// Unlock
await client.setReadOnly({ key: "myKey", label: "prod" }, false);

App Configuration Provider

Load Configuration

import { load } from "@azure/app-configuration-provider";
import { DefaultAzureCredential } from "@azure/identity";

const appConfig = await load(
  process.env.AZURE_APPCONFIG_ENDPOINT!,
  new DefaultAzureCredential(),
  {
    selectors: [
      { keyFilter: "app:*", labelFilter: "production" },
    ],
    trimKeyPrefixes: ["app:"],
  }
);

// Map-style access
const value = appConfig.get("settings:message");

// Object-style access
const config = appConfig.constructConfigurationObject({ separator: ":" });
console.log(config.settings.message);

Dynamic Refresh

const appConfig = await load(endpoint, credential, {
  selectors: [{ keyFilter: "app:*" }],
  refreshOptions: {
    enabled: true,
    refreshIntervalInMs: 30_000,  // 30 seconds
  },
});

// Trigger refresh (non-blocking)
appConfig.refresh();

// Listen for refresh events
const disposer = appConfig.onRefresh(() => {
  console.log("Configuration refreshed!");
});

// Express middleware pattern
app.use((req, res, next) => {
  appConfig.refresh();
  next();
});

Key Vault References

const appConfig = await load(endpoint, credential, {
  selectors: [{ keyFilter: "app:*" }],
  keyVaultOptions: {
    credential: new DefaultAzureCredential(),
    secretRefreshIntervalInMs: 7200_000,  // 2 hours
  },
});

// Secrets are automatically resolved
const dbPassword = appConfig.get("database:password");

Feature Flags

Create Feature Flag (Low-Level)

import {
  featureFlagPrefix,
  featureFlagContentType,
  FeatureFlagValue,
  ConfigurationSetting,
} from "@azure/app-configuration";

const flag: ConfigurationSetting<FeatureFlagValue> = {
  key: `${featureFlagPrefix}Beta`,
  contentType: featureFlagContentType,
  value: {
    id: "Beta",
    enabled: true,
    description: "Beta feature",
    conditions: {
      clientFilters: [
        {
          name: "Microsoft.Targeting",
          parameters: {
            Audience: {
              Users: ["[email protected]"],
              Groups: [{ Name: "beta-testers", RolloutPercentage: 50 }],
              DefaultRolloutPercentage: 0,
            },
          },
        },
      ],
    },
  },
};

await client.addConfigurationSetting(flag);

Load and Evaluate Feature Flags

import { load } from "@azure/app-configuration-provider";
import {
  ConfigurationMapFeatureFlagProvider,
  FeatureManager,
} from "@microsoft/feature-management";

const appConfig = await load(endpoint, credential, {
  featureFlagOptions: {
    enabled: true,
    selectors: [{ keyFilter: "*" }],
    refresh: {
      enabled: true,
      refreshIntervalInMs: 30_000,
    },
  },
});

const featureProvider = new ConfigurationMapFeatureFlagProvider(appConfig);
const featureManager = new FeatureManager(featureProvider);

// Simple check
const isEnabled = await featureManager.isEnabled("Beta");

// With targeting context
const isEnabledForUser = await featureManager.isEnabled("Beta", {
  userId: "[email protected]",
  groups: ["beta-testers"],
});

Snapshots

// Create snapshot
const snapshot = await client.beginCreateSnapshotAndWait({
  name: "release-v1.0",
  retentionPeriod: 2592000,  // 30 days
  filters: [{ keyFilter: "app:*", labelFilter: "production" }],
});

// Get snapshot
const snap = await client.getSnapshot("release-v1.0");

// List settings in snapshot
const settings = client.listConfigurationSettingsForSnapshot("release-v1.0");
for await (const setting of settings) {
  console.log(`${setting.key}: ${setting.value}`);
}

// Archive/recover
await client.archiveSnapshot("release-v1.0");
await client.recoverSnapshot("release-v1.0");

// Load from snapshot (provider)
const config = await load(endpoint, credential, {
  selectors: [{ snapshotName: "release-v1.0" }],
});

Labels

// Create settings with labels
await client.setConfigurationSetting({
  key: "database:host",
  value: "dev-db.example.com",
  label: "development",
});

await client.setConfigurationSetting({
  key: "database:host",
  value: "prod-db.example.com",
  label: "production",
});

// Filter by label
const prodSettings = client.listConfigurationSettings({
  keyFilter: "*",
  labelFilter: "production",
});

// No label (null label)
const noLabelSettings = client.listConfigurationSettings({
  labelFilter: "\0",
});

// List available labels
for await (const label of client.listLabels()) {
  console.log(label.name);
}

Key Types

import {
  AppConfigurationClient,
  ConfigurationSetting,
  FeatureFlagValue,
  SecretReferenceValue,
  featureFlagPrefix,
  featureFlagContentType,
  secretReferenceContentType,
  ListConfigurationSettingsOptions,
} from "@azure/app-configuration";

import { load } from "@azure/app-configuration-provider";

import {
  FeatureManager,
  ConfigurationMapFeatureFlagProvider,
} from "@microsoft/feature-management";

Best Practices

Use provider for apps - @azure/app-configuration-provider for runtime config
Use low-level for management - @azure/app-configuration for CRUD operations
Enable refresh - For dynamic configuration updates
Use labels - Separate configurations by environment
Use snapshots - For immutable release configurations
Sentinel pattern - Use a sentinel key to trigger full refresh
RBAC roles - App Configuration Data Reader for read-only access

aiskillstore/azure-appconfiguration-ts

skills/sickn33/azure-appconfiguration-ts/SKILL.md

Build applications using Azure App Configuration SDK for JavaScript (@azure/app-configuration). Use when working with configuration settings, feature flags, Key Vault references, dynamic refresh, or centralized configuration management.

230 stars

development

Updated Mar 28, 2026

$ install --global

skillsauth

npx skillsauth add aiskillstore/marketplace azure-appconfiguration-ts

Install this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.

Security Scan Results

3 of 9 scanners reported clean

Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.

Scanners Passed

Scanners in report

Clean

TrivyContainer and dependency vulnerability scanner

95%

Clean

SemgrepStatic code analysis for vulnerabilities

95%

Clean

mcp-scan (Snyk)Model Context Protocol security validation

95%

Skipped

Snyk (dep)Open source security scanning

50%

Skipped

Socket.devSupply chain security analysis

50%

Skipped

VirusTotalMulti-engine malware detection

50%

Skipped

CrowdStrikeAdvanced threat intelligence

50%

Skipped

OSV-ScannerOpen Source Vulnerability database check

50%

Skipped

OWASP Dep-Check

50%

Last scanned: Mar 31, 2026, 7:54 AM54.6s2 files scanned

SKILL.md

name:: azure-appconfiguration-ts
description:: Build applications using Azure App Configuration SDK for JavaScript (@azure/app-configuration). Use when working with configuration settings, feature flags, Key Vault references, dynamic refresh, or centralized configuration management.
package:: @azure/app-configuration

Azure App Configuration SDK for TypeScript

Centralized configuration management with feature flags and dynamic refresh.

Installation

# Low-level CRUD SDK
npm install @azure/app-configuration @azure/identity

# High-level provider (recommended for apps)
npm install @azure/app-configuration-provider @azure/identity

# Feature flag management
npm install @microsoft/feature-management

Environment Variables

AZURE_APPCONFIG_ENDPOINT=https://<your-resource>.azconfig.io
# OR
AZURE_APPCONFIG_CONNECTION_STRING=Endpoint=https://...;Id=...;Secret=...

Authentication

import { AppConfigurationClient } from "@azure/app-configuration";
import { DefaultAzureCredential } from "@azure/identity";

// DefaultAzureCredential (recommended)
const client = new AppConfigurationClient(
  process.env.AZURE_APPCONFIG_ENDPOINT!,
  new DefaultAzureCredential()
);

// Connection string
const client2 = new AppConfigurationClient(
  process.env.AZURE_APPCONFIG_CONNECTION_STRING!
);

CRUD Operations

Create/Update Settings

// Add new (fails if exists)
await client.addConfigurationSetting({
  key: "app:settings:message",
  value: "Hello World",
  label: "production",
  contentType: "text/plain",
  tags: { environment: "prod" },
});

// Set (create or update)
await client.setConfigurationSetting({
  key: "app:settings:message",
  value: "Updated value",
  label: "production",
});

// Update with optimistic concurrency
const existing = await client.getConfigurationSetting({ key: "myKey" });
existing.value = "new value";
await client.setConfigurationSetting(existing, { onlyIfUnchanged: true });

Read Settings

// Get single setting
const setting = await client.getConfigurationSetting({
  key: "app:settings:message",
  label: "production",  // optional
});
console.log(setting.value);

// List with filters
const settings = client.listConfigurationSettings({
  keyFilter: "app:*",
  labelFilter: "production",
});

for await (const setting of settings) {
  console.log(`${setting.key}: ${setting.value}`);
}

Delete Settings

await client.deleteConfigurationSetting({
  key: "app:settings:message",
  label: "production",
});

Lock/Unlock (Read-Only)

// Lock
await client.setReadOnly({ key: "myKey", label: "prod" }, true);

// Unlock
await client.setReadOnly({ key: "myKey", label: "prod" }, false);

App Configuration Provider

Load Configuration

import { load } from "@azure/app-configuration-provider";
import { DefaultAzureCredential } from "@azure/identity";

const appConfig = await load(
  process.env.AZURE_APPCONFIG_ENDPOINT!,
  new DefaultAzureCredential(),
  {
    selectors: [
      { keyFilter: "app:*", labelFilter: "production" },
    ],
    trimKeyPrefixes: ["app:"],
  }
);

// Map-style access
const value = appConfig.get("settings:message");

// Object-style access
const config = appConfig.constructConfigurationObject({ separator: ":" });
console.log(config.settings.message);

Dynamic Refresh

const appConfig = await load(endpoint, credential, {
  selectors: [{ keyFilter: "app:*" }],
  refreshOptions: {
    enabled: true,
    refreshIntervalInMs: 30_000,  // 30 seconds
  },
});

// Trigger refresh (non-blocking)
appConfig.refresh();

// Listen for refresh events
const disposer = appConfig.onRefresh(() => {
  console.log("Configuration refreshed!");
});

// Express middleware pattern
app.use((req, res, next) => {
  appConfig.refresh();
  next();
});

Key Vault References

const appConfig = await load(endpoint, credential, {
  selectors: [{ keyFilter: "app:*" }],
  keyVaultOptions: {
    credential: new DefaultAzureCredential(),
    secretRefreshIntervalInMs: 7200_000,  // 2 hours
  },
});

// Secrets are automatically resolved
const dbPassword = appConfig.get("database:password");

Feature Flags

Create Feature Flag (Low-Level)

import {
  featureFlagPrefix,
  featureFlagContentType,
  FeatureFlagValue,
  ConfigurationSetting,
} from "@azure/app-configuration";

const flag: ConfigurationSetting<FeatureFlagValue> = {
  key: `${featureFlagPrefix}Beta`,
  contentType: featureFlagContentType,
  value: {
    id: "Beta",
    enabled: true,
    description: "Beta feature",
    conditions: {
      clientFilters: [
        {
          name: "Microsoft.Targeting",
          parameters: {
            Audience: {
              Users: ["[email protected]"],
              Groups: [{ Name: "beta-testers", RolloutPercentage: 50 }],
              DefaultRolloutPercentage: 0,
            },
          },
        },
      ],
    },
  },
};

await client.addConfigurationSetting(flag);

Load and Evaluate Feature Flags

import { load } from "@azure/app-configuration-provider";
import {
  ConfigurationMapFeatureFlagProvider,
  FeatureManager,
} from "@microsoft/feature-management";

const appConfig = await load(endpoint, credential, {
  featureFlagOptions: {
    enabled: true,
    selectors: [{ keyFilter: "*" }],
    refresh: {
      enabled: true,
      refreshIntervalInMs: 30_000,
    },
  },
});

const featureProvider = new ConfigurationMapFeatureFlagProvider(appConfig);
const featureManager = new FeatureManager(featureProvider);

// Simple check
const isEnabled = await featureManager.isEnabled("Beta");

// With targeting context
const isEnabledForUser = await featureManager.isEnabled("Beta", {
  userId: "[email protected]",
  groups: ["beta-testers"],
});

Snapshots

// Create snapshot
const snapshot = await client.beginCreateSnapshotAndWait({
  name: "release-v1.0",
  retentionPeriod: 2592000,  // 30 days
  filters: [{ keyFilter: "app:*", labelFilter: "production" }],
});

// Get snapshot
const snap = await client.getSnapshot("release-v1.0");

// List settings in snapshot
const settings = client.listConfigurationSettingsForSnapshot("release-v1.0");
for await (const setting of settings) {
  console.log(`${setting.key}: ${setting.value}`);
}

// Archive/recover
await client.archiveSnapshot("release-v1.0");
await client.recoverSnapshot("release-v1.0");

// Load from snapshot (provider)
const config = await load(endpoint, credential, {
  selectors: [{ snapshotName: "release-v1.0" }],
});

Labels

// Create settings with labels
await client.setConfigurationSetting({
  key: "database:host",
  value: "dev-db.example.com",
  label: "development",
});

await client.setConfigurationSetting({
  key: "database:host",
  value: "prod-db.example.com",
  label: "production",
});

// Filter by label
const prodSettings = client.listConfigurationSettings({
  keyFilter: "*",
  labelFilter: "production",
});

// No label (null label)
const noLabelSettings = client.listConfigurationSettings({
  labelFilter: "\0",
});

// List available labels
for await (const label of client.listLabels()) {
  console.log(label.name);
}

Key Types

import {
  AppConfigurationClient,
  ConfigurationSetting,
  FeatureFlagValue,
  SecretReferenceValue,
  featureFlagPrefix,
  featureFlagContentType,
  secretReferenceContentType,
  ListConfigurationSettingsOptions,
} from "@azure/app-configuration";

import { load } from "@azure/app-configuration-provider";

import {
  FeatureManager,
  ConfigurationMapFeatureFlagProvider,
} from "@microsoft/feature-management";

Best Practices

Use provider for apps - @azure/app-configuration-provider for runtime config
Use low-level for management - @azure/app-configuration for CRUD operations
Enable refresh - For dynamic configuration updates
Use labels - Separate configurations by environment
Use snapshots - For immutable release configurations
Sentinel pattern - Use a sentinel key to trigger full refresh
RBAC roles - App Configuration Data Reader for read-only access

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Install manually

Choose your platform

# Clone the repo
git clone https://github.com/aiskillstore/marketplace.git

# Copy into Claude Code skills folder (global)
cp -r marketplace/skills/sickn33/azure-appconfiguration-ts ~/.claude/skills/

Claude Code Skills — official skills path docs.

Repository

aiskillstore/marketplace

230 stars

Compatible with

Claude Code

OpenAI Codex CLI

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