# Investec Programmable Banking Open API Wrapper
A JavaScript/TypeScript wrapper to get up and running fast with Investec's Open API for programmable banking.
[](https://github.com/barrymichaeldoyle/investec-openapi/pulls)
### Installation
**Using npm:**
```
npm install investec-openapi
```
**Using yarn:**
```
yarn add investec-openapi
```
### Usage
**Setup:**
```
import api from 'investec-openapi'
api.configure({
proxyUrl: 'see_docs_below_(for_web_apps)',
clientId: 'YourClientId_do_not_share'
secret: 'YourSecret_do_not_share',
errorCallback: (err) => {
// Handle errors with getting an access token
// The err object is either an Error or an HTTP Response from the OAuth server
console.error(err)
}
})
```
The `errorCallback` is optional. Errors will be logged to `std.err` if it is not provided.
**Get Data:**
```
const fetchData = async () => {
const accounts = await api.getAccounts()
console.log(accounts) // prints accounts linked to account
const accountBalance = await api.getAccountBalance({ accountId: '12345' })
console.log(accountBalance) // prints account balance
const accountTransactions = await api.getAccountTransactions({
accountId: '12345',
fromDate: '2020-01-20',
toDate: '2020-01-30'
})
console.log(accountTransactions) // prints account transactions for given date range
}
```
**OR:**
```
const fetchData = async () => {
// prints accounts linked to account
api.getAccounts().then(accounts => console.log(accounts))
// prints account balance
api.getAccountBalance({ accountId: '12345' })
.then(accountBalance => console.log(accountBalance))
// prints account transactions for given date range
api.getAccountTransactions({
accountId: '12345',
fromDate: '2020-01-20',
toDate: '2020-01-30'
}).then(accountTransactions => console.log(accountTransactions))
}
```
### Documentation
`api` is a class that once `configured` will generate an `access_token` behind the scenes and replace it with a new one once it's within a minute of expiring with no work required on your end.
This wrapper supports `getAccounts`, `getAccountBalance` and `getAccountTransactions` as documented in the [Investec Developer Documentation] with TypeScript definitions included.
---
#### **`api.configure(config)`**
Sets up `api` class with credentials to acquire and refresh `access_token`. Can be called again to change credentials and refresh `access_token` for new credentials. Other API calls will wait until `access_token` is set (by calling this function) before running.
##### **`config` parameters:**
`proxyUrl` - _optional_ (default `''`)
**Note for Web Apps:** Without a `proxyUrl`, you'll experience _CORS issues_. If anyone has an ideas on how to bypass this more cleanly, let me know! We could probably do with adding a dedicated proxy server, in the meantime you can use this `'https://young-thicket-56542.herokuapp.com/'`. Sometimes the Heroko app needs to spin up initially so the first load may take longer than usual. The heroku app is a clone of https://cors-anywhere.herokuapp.com/ from this SO post: https://stackoverflow.com/a/43268098/2111515.
`clientId` - _required_
_Get this from https://login.secure.investec.com/io/programmable-banking/cards/overview_
`secret` - _required_
_Get this from https://login.secure.investec.com/io/programmable-banking/cards/overview_
---
#### **`api.getAccounts()`**
Returns list of accounts with details for configured credentials.
**Response:**
```
{
data: {
accounts: {
accountId: string
accountNumber: string
accountName: string
referenceName: string
productName: string
}[]
}
links: {
self: string
}
meta: {
totalPages: number
}
}
```
---
#### **`api.getAccountBalance(accountId)`**
Returns account balance details for selected account.
##### **`request` parameters:**
`accountId` - **string** _required_
**Response:**
```
{
data: {
accountId: string
currentBalance: number
availableBalance: number
currency: string
}
links: {
self: string
}
meta: {
totalPages: number
}
}
```
---
#### **`api.getAccountTransactions(accountId)`**
Returns list of transaction details for selected account.
##### **`request` parameters:**
`accountId` - **string** _required_
`fromDate` - **string** _optional_ - Date value in ISO 8601 (i.e. '2020-01-20')
`toDate` - **string** _optional_ - Date value in ISO 8601 (i.e. '2020-01-20')
**Response:**
```
{
data: {
transactions: {
accountId: string
type: string
status: string
description: string
cardNumber: string
postingData: string
valueDate: string
actionDate: string
amount: number
}[]
}
links: {
self: string
}
meta: {
totalPages: number
}
}
```
---
Hope you find this useful! Please give a star and feel free to contribute or log issues and feature requests!
And if you want to say thanks, then go ahead:
Otherwise you could just say thanks to me on the offerzen-community slack @barrymichaeldoyle :)
[investec developer documentation]: https://developer.investec.com/programmable-banking/#programmable-banking