@hydrogenplatform/raindrop
Convenience functions to integrate Raindrop authentication into your project.
Last updated 2 years ago by noahzinsmeister .
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Hydro Raindrop

This package provides a suite of convenience functions intended to simplify the integration of Hydro's Raindrop authentication into your project. An equivalent Python SDK is also available. More information, including detailed API documentation, is available in the Raindrop documentation. Raindrop comes in two flavors:

Client-side Raindrop

Client-side Raindrop is a next-gen 2FA solution. We've open-sourced the code powering Client-side Raindrop.

Server-side Raindrop

Server-side Raindrop is an enterprise-level security protocol to secure APIs and other shared resources. We've open-sourced the code powering Server-side Raindrop.

Installation

Recommended

Install raindrop on npm:

npm install -S @hydrogenplatform/raindrop

Manual

You can also install manually:

  • git clone https://github.com/hydrogen-dev/raindrop-sdk-js.git
  • cd raindrop-sdk-js
  • npm install

Usage

The raindrop package exposes two objects: raindrop.client and raindrop.server. To start making API calls, you'll need to instantiate a RaindropPartner object for the module you'd like to use. The SDK will automatically fetch you an OAuth token, and set your environment.

const raindrop = require("@hydrogenplatform/raindrop")

Generic RaindropPartner Functions

constructor new RaindropPartner(config)

To instantiate a new RaindropPartner object in the client or server modules, you must pass a config object with the following values:

  • config
    • environment (required): Sandbox | Production to set your environment
    • clientId (required): Your OAuth id for the Hydro API
    • clientSecret (required): Your OAuth secret for the Hydro API
    • applicationId (required for client calls): Your application id for the Hydro API
    • verbose (optional): true | false turns more detailed error reporting on | off

RaindropPartnerObject.refreshToken()

Manually refreshes OAuth token.

RaindropPartnerObject.transactionStatus(transactionHash)

This function returns true when the transaction referenced by transactionHash has been included in a block on the Ethereum blockchain (Rinkeby if the environment is Sandbox, Mainnet if the environment is Production).

  • transactionHash (required): Hash of a transaction

Generic raindrop.client Functions

generateMessage()

Generates a random 6-digit string of integers for users to sign. Uses system-level CSPRNG.

raindrop.client.RaindropPartner Functions

Client-side Raindrop initialization code will look like:

// Client-side Raindrop Setup
const ClientRaindropPartner = new raindrop.client.RaindropPartner({
    environment: "Sandbox",
    clientId: "yourId",
    clientSecret: "yourSecret",
    applicationId: "yourApplicationId"
})

registerUser(HydroID)

Should be called when a user elects to use Raindrop Client for the first time with your application.

  • HydroID: the new user's HydroID (the one they used when signing up for Hydro mobile app)

verifySignature(HydroID, message)

Should be called each time you need to verify whether a user has signed a message.

  • HydroID: the HydroID of the user that is meant to have signed message
  • message: a message generated from generateMessage() (or any 6-digit numeric code)

Returns a response object that looks like: {verified: true, data: {...}}. The verified parameter will only be true for successful verification attempts.

unregisterUser(HydroID)

Should be called when a user disables Client-side Raindrop with your application.

  • HydroID: the user's HydroID (the one they used when signing up for Hydro mobile app)

raindrop.server.RaindropPartner Functions

Server-side Raindrop initialization code will look like:

// Server-side Raindrop Setup
const ServerRaindropPartner = new raindrop.server.RaindropPartner({
  environment: "Sandbox",
  clientId: "yourId",
  clientSecret: "yourSecret"
})

whitelist(addressToWhitelist)

A one-time call that whitelists a user to authenticate with your API via Server-side Raindrop.

  • addressToWhitelist: The Ethereum address of the user you're whitelisting

requestChallenge(hydroAddressId)

Initiate an authentication attempt on behalf of the user associated with hydroAddressId.

  • hydroAddressId: the hydro_address_id of the authenticating user

authenticate(hydroAddressId)

Checks whether the user correctly performed the raindrop.

  • hydroAddressId: the hydro_address_id of the user who claims to be authenticated

Returns a response object that looks like: {authenticated: true, data: {...}}. The authenticated parameter will only be true for successful authentication attempts.

Copyright & License

Copyright 2018 The Hydrogen Technology Corporation under the MIT License.

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