OAuth Header

Generates the value for the Authorization header when making request via OAuth 1.

Motivation

When trying to write a client for an API which utilizes OAuth 1, I ran into the problem that there are only packages which are either doing to much or not enough for my taste:

node-oauth provides a full http client that I have to use to make my requests.

oauth-signature only generates the signature and one has to assemble the header manually. Also at the time of writing I was unable to create a valid signature with this package (tested against Postman)

So I set out to create a solution that sits in the middle: Only take care of what's needed for the authentification and leave the rest to the dev.

Installation

To install this package use npm i oauth-header

The package also contains type definitions for use with TypeScript.

Usage

const oauthHeader = require("oauth-header);
const generator = new oauthHeader.Generator(
    "consumerKey",
    "consumerSecret",
    "tokenKey",
    "tokenSecret"
);
const value = generator.generateHeaderValue(
    "GET",
    "https://example.com"
);

console.log(value);
// OAuth oauth_consumer_key="consumerKey",oauth_nonce="1C107D6C84061269",oauth_signature_method="HMAC-SHA1",oauth_timestamp="1638119811",oauth_token="tokenKey",oauth_version="1.0",oauth_signature="pLm0aUMcISV%2Bow0U%2BwhWdkf4lVk%3D"

Options

To account for differenc signing methods Generator.generateHeaderValue() accepts the additional parameter signatureMethod, which can be one of three options:

• PLAINTEXT
• HMAC-SHA1
• RSA-SHA1

Constraints

At the time of writing this package is highly geared towards my personal use case and may not work for yours.

Application Token

Currently the application token is mandatory.

Signing Methods

The signing with the RSA-SHA1 algorithm is not implemented yet.

GET Parameters

Currently the package does not support processing complex parameters i.e. objects. Only basic values as string, numbers, booleans may be used.

Licences

Part of the source code is based on node-oauth and oauth-signature. Their respective licences can be found in the licence folder.