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Transferwise

Welcome to transferwise ruby gem! The transferwise Ruby gem provide a small SDK for convenient access to the Transferwise API from applications written in the Ruby language. It provides a pre-defined set of classes for API resources that initialize themselves dynamically from API responses which allows the bindings to tolerate a number of different versions of the API.

Installation

Add this line to your application's Gemfile:

gem 'transferwise'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install transferwise

Usage

The library needs to be configured with environment mode "test" or "live"

For live mode
Transferwise.mode = "live"

For test mode
Transferwise.mode = "test"

Development

Authentication

Transferwise uses OAuth 2 for API authentication and authorization. Calls done in behalf of the user require the access token, other calls require Basic Auth. Please keep in mind that tokens are unique to user and should be stored securely.

tw = Transferwise::OAuth.new(client_id, client_secret)
redirect_url = "www.example.com/callback" # Url where you want user to redirect back after authentication from transferwise
url = tw.authorize_url(redirect_url)

This will give you the url where you have to redirect the user to authorize and after authorization you will get redirected to redirect_url with authentication_code.

code = "aqw12q" # some authentication_code from response of authentication
tw.get_access_token(code, redirect_url)
=begin
Response:
{
    "token_type" => "bearer",
         "scope" => "transfers",
   :access_token => "1bceb8d8-4115-4daa-8370-d9bc8de0c732",
  :refresh_token => "6ff3451a-e713-416a-b735-20d8020f6ce2",
     :expires_at => 1487908739
}
=end

Store this access token and periodically refresh it before it expires

tw.refresh_token(access_token, opts = {refresh_token: refresh_token, expires_at: expires_at})
=begin
Response:
{
  "token_type" => "bearer",
       "scope" => "transfers",
 :access_token => "59e18a25-c84e-4f06-aee4-416c9211a8c8",
:refresh_token => "6ff3451a-e713-416a-b735-20d8020f6ce2",
   :expires_at => 1487873072
}
=end

Anatomy of a Transferwise Transfer

To create the transfers, we need to get profile, quote and target account first.

Profile

Create a profile as individual or business.

profile_request = {
  type: "personal", # or business
  details: {
      firstName: "First name",       # Sender FirstName
      lastName: "Last Name",         # Sender LastName
      dateOfBirth: "1980-07-20",     # sender DOB
      phoneNumber: "+918147001602"   # Sender number in international format
  }
}
profile = Transferwise::Profile.create(profile_request, {access_token: access_token})

Quote

Create a quote

quote_request = {
  profile: profile.id,  # got from previous profile response
  source: "USD",        # source currency
  target: "INR",        # target currency
  sourceAmount: "100",  # source amount is amount which sender is going to send. Transferwise will deduct their fees and receipient will receive less money.
  rateType: "FIXED",
  type: 'BALANCE_PAYOUT' # or 'BALANCE_CONVERSION' if using for conversion
}
quote = Transferwise::Quote.create(quote_request, {access_token: access_token})

Account

Next step is to create the account where you want to transfer the money. If you already have the account you can use that account id and skip this account creation part.

account_request = {
  "profile" => profile.id,
  "accountHolderName" => "Account Holder Name",
  "currency" => "INR",     # target currency name
  "country" => "IN",       # target country code
  "type" => "",            # get from account requirements
  "details" => {
      "legalType" => "PRIVATE",
      "accountNumber" => "",     # target account number
      "ifscCode" => "",          # ifsc code or any other field. Get field name finformation from account requirements api. This could be different for other country except india.
      "address" => {             # get address details also from account requirement based on country.
        "city" => "City name",   # city name
        "country" => "IN",       # country code
        "firstLine" => "",       # address first line
        "postCode" => ""         # post code
      }
  }
}
account = Transferwise::Account.create(account_request, {access_token: access_token})

Transfer

Create a transfer

transfer_request = {
  "customerTransactionId" => "d57db29d-1060-4ce8-bd5e-800edaf982a9", # some unique uuid format number to identify the transfer.
  "targetAccount" => account.id,
  "quote" => quote.id,
  "details" => {
    "reference" => "Any Comment" # get the field detail, from transfer requirements api before creating the transfer object.
  }
}
transfer = Transferwise::Transfer.create(transfer_request, {access_token: access_token})

The Transfer object is created via the Transferwise website. You can go there and make payments to complete the transfer.

Fund a transfer

Transferwise::Transfer.fund(transfer_id, { access_token: access_token })

Cancel a transfer

Transferwise::Transfer.cancel(transfer_id, { access_token: access_token })

Transferwise Borderless Account

A Borderless Account is a "virtual" bank account that you can control via the Transferwise API, to send funds to external bank accounts (across borders), as well as download statements and view the current balance.

Borderless Accounts

https://api-docs.transferwise.com/v1/borderless-account/search-account-by-user-profile

Get all the borderless accounts given a profileId

account_request = { profileId: 1234567 }
account = Transferwise::BorderlessAccount.list(nil, { 'params' => account_request, access_token: access_token })

Borderless Account

https://api-docs.transferwise.com/v1/borderless-account/get-available-balances

Get a borderless account given a borderless_account_id

borderless_account_id = 123
account = Transferwise::BorderlessAccount.get(borderless_account_id, {access_token: access_token})

Transactions

https://api-docs.transferwise.com/v1/borderless-account/get-account-statement

Get all the transactions for an account given a borderless_account_id

borderless_account_id = 123
transactions = Transferwise::BorderlessAccount::Transaction.list(nil, { 'params' => { page: '5' }, access_token: access_token }, borderless_account_id)

Conversions

https://api-docs.transferwise.com/v1/borderless-account/convert-between-currencies

Move funds between your borderless account currencies.

borderless_account_id = 123
access_header = { access_token: access_token }
transactions = Transferwise::BorderlessAccount.convert(borderless_account_id, conversion_quote_id, access_header)

Statement

https://api-docs.transferwise.com/v1/borderless-account/get-statement

Get a borderless account statement for a given currency

query_string = {
  profileId: 1234567,
  currency: 'GBP',
  startDate: '2017-12-01',
  endDate: '2017-12-07'
}
statement = Transferwise::BorderlessAccount::Statement.list(nil, { 'params' => query_string })

Currencies

https://api-docs.transferwise.com/v1/borderless-account/available-currencies

Get a list of available currencies for your balances

Transferwise::BorderlessAccount::BalanceCurrency.list

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Ruby client for TransferWise api

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