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em-interceptor

v1.0.1

Published

em-interceptor is a lightweight package designed to simplify authentication token management in JavaScript and TypeScript applications that utilize the Axios HTTP client.

Downloads

3

Readme

Interceptor for Token Management

npm downloads

This module provides an Axios interceptor for handling authentication tokens in JavaScript and TypeScript applications. The interceptor automatically attaches authentication tokens to outgoing requests and refreshes them when necessary to ensure seamless user authentication.

Features

  • Automatically adds an Authorization header with a bearer token to outgoing requests.
  • Handles token refresh logic to keep users authenticated, even if their token expires.
  • Supports multiple storage options for tokens: localStorage, sessionStorage, and cookies.

Installation

You can install the module via npm or yarn or pnpm:

npm install em-interceptor

or

yarn add em-interceptor

or

pnpm install em-interceptor

InterceptorOptions API

interface InterceptorOptions {
    storageType: "localStorage" | "sessionStorage" | "cookies";
    tokenKey: string;
}
  • storageType: Specifies the type of storage to use for storing tokens. Options are "localStorage", "sessionStorage", or "cookies".
  • tokenKey: Specifies the key under which the token is stored in the chosen storage type.

Usage

  1. Import the Interceptor function from the module (typescript):
import Interceptor, { InterceptorOptions } from "em-interceptor";
  1. Configure the interceptor by passing an InterceptorOptions object:
const options: InterceptorOptions = {
  storageType: "localStorage",
  tokenKey: "access_token",
};

Interceptor(options);
  1. Use Axios as usual in your application. The interceptor will automatically handle token management for you.

Configuration Options

  • storageType: Specifies the type of storage to use for storing tokens. Options are "localStorage", "sessionStorage", or "cookies".
  • tokenKey: Specifies the key under which the token is stored in the chosen storage type.

Customization

You can customize the behavior of the interceptor by modifying the provided options or extending the interceptor functions (requestInterceptor and responseInterceptor).

Issues and Contributions

Issues and contributions are welcome! Please feel free to open issues or submit pull requests to enhance the functionality or address any bugs.

License

This module is licensed under the MIT License. See the LICENSE file for details.