digits

Digits Login

Twitter's Digits service provides phone number login via SMS confirmation codes for any web app or mobile app.

Digits for Web

The Digits Javascipt SDK launches a web popup to prompt a user to enter a phone number and an SMS confirmation code.

The page receives OAuth Echo headers which can be posted to a Go server, validated, and used to fetch the user's Digits account. Package gologin provides Go handlers for Digits which perform these steps correctly.

Getting Started

go get github.com/dghubble/gologin/digits
cd $GOPATH/src/github.com/dghubble/gologin/examples/digits
go get .

Example App

main.go shows an example web app which uses gologin for Digits to issue a client-side cookie session. For simplicity, no data is persisted.

Get your Digits application's consumer key from the fabric.io dashboard.

Note: Currently a Digits application must be created by making a dummy iOS or Android app via the Fabric iOS Mac App or Android Studio Plugin.

Compile and run main.go from examples/digits. Pass the key as an argument to the executable

go run main.go -consumer-key=xx
2015/09/25 21:44:48 Starting Server listening on localhost:8080

or set the DIGITS_CONSUMER_KEY environment variable.

Here is what the web login flow looks like (showing a mobile browser).

Authorization Flow

1. Clicking the "Login with Digits" button launches the Digits web login popup.

2. User enters a phone number and receives an SMS confirmation number to enter. The page receives OAuth Echo fields and POSTs them to the Go server.

3. The Echo fields are validated, used to obtain the Digits Account, and provided to the specified success http.Handler.

4. In this example, that account is read and used to issue the user a signed cookie session.