govenmo

A Venmo API client library in Golang.

See the Venmo API documentation here at https://developer.venmo.com/docs/oauth.

See README for usage or GoDoc.

Concepts

Since all Venmo API requests must be authenticated using a user's OAuth token, the basic object is the Account, which holds information for the authenticated user and tokens.

The library assumes you have already obtained a user access token somehow, for example using the OAuth flow. Helpers for completing the OAuth flow might be added in the future.

Usage

Create account with user access token

Obtaining the token is not included in the library but is easy to implement.

account := Account{
	AccessToken:  "...",
	RefreshToken: "...",
}

Fetch user information including balance

err := account.Refresh()
if err != nil {
	// Handle error ...
}

Pay someone

target := Target{}
target.Email = "kbrisson@gmail.com"
// OR target.Phone = "..."
// OR target.User.Id = "..."

sentPayment, err := account.PayOrCharge(target, 5.27, "Thanks for the govenmo library!", "public")
if err != nil {
	// Handle error ...
}

Refresh single payment

payment := &Payment{}
payment.Id = "1111111111111111111"
err = account.RefreshPayment(payment)
if err != nil {
	// Handle error ...
}

Fetch multiple payments

var updatedSince time.Time
payments, err := account.PaymentsSince(updatedSince)
if err != nil {
	// Handle error ...
}
for _, payment := range payments {
	// Each payment is an instance of Payment.
	log.Println("Found payment:", payment.Note)
}

Complete a charge

updatedPayment, err := account.CompletePayment("paymentID", "approve")
if err != nil {
	// Handle error ...
}

Deny a charge

updatedPayment, err := account.CompletePayment("paymentID", "deny")
if err != nil {
	// Handle error ...
}

Cancel a charge

updatedPayment, err := account.CompletePayment("paymentID", "cancel")
if err != nil {
	// Handle error ...
}

Fetch friends

friends, err := account.FetchFriends()
if err != nil {
	// Handle error ...
}

for _, friend := range friends {
	// Each friend is an instance of User.
	log.Println("Found friend:", friend.DisplayName)
}

Settings

Enable Venmo sandbox mode. Note that the Venmo sandbox doesn't behave exactly like the production API.

govenmo.Environment = "sandbox"

Use local sandbox

// In your client
govenmo.Environment = "local_sandbox"

Set a maximum payment or charge amount. (Why?... because when you first start using the production API you probably don't want a bug in your code to be able to send thousands of dollars.)

max := float64(50)
govenmo.MaxPayment = &max

Enable logging

govenmo.EnableLogging(nil)  // you can also pass a Logger

Run the local sandbox

The package local_sandbox mimics the real Venmo sandbox so that you don't have to hit it as much during testing.

Local sandbox returns the sandbox's hardcoded POST /payments responses. It also mimics GET /me and GET /payments/1111111111111111111. Other requests are proxied to the real sandbox and would require a valid token.

Like the real sandbox, it's not a replica of the Venmo production API and the values returned in the responses might not be the same as what you send in your request.

cd local_sandbox
go run main.go

The local sandbox must be running for the (limited) tests.

License

MIT. See LICENSE.md.

tejasmanohar / govenmo