XAG API Server

An API server that provides a REST-like interface to the XAG Ledger.

Building with TypeScript, JavaScript, or Node.js?

Instead of XAG API, you can use ripple-lib for a native integration experience and access to more advanced XAG Ledger features.

Requirements

Node v10.4.0 or higher
yarn
An XAG Ledger account with XAG

For development, you can use the XAG Testnet and get some test XAG from the XAG Testnet Faucet . The setup script will do this for you automatically.

Initial setup

Clone this repository (or download and extract a copy).
```
git clone git@github.com:xpring-eng/xrp-api.git
```
Change directory into the project.
```
cd xrp-api
```
Install dependencies using Yarn.
```
yarn install
```
Set up your configuration file for the first time.
```
yarn run setup
```

For testing and development, you can use the XAG Faucets . At this time, the following public servers are available:

Testnet: wss://s.altnet.rippletest.net:51233
Devnet: wss://s.devnet.rippletest.net:51233

Development

To start the server in development mode:

yarn dev

This starts the server with nodemon so that it will be automatically restarted when you save changes to the code.

The default port is 3000. To use a custom port, use yarn dev <port>. Example:

yarn dev 3001

Production

If you would like to use xrp-api in production with real funds, please contact us! We will assist with your secure deployment.

Considerations:

SSL/TLS must be used for all requests. An SSL/TLS termination proxy is recommended.
Restrictions should be made on signing, such as on the types of transactions, amount/velocity, and whitelisting of destinations. This feature is coming in the future.
If an error occurs, the server will exit to protect security & data integrity. We recommend using PM2 , nodemon , or forever to restart the server if it crashes in production.

Tutorial

In this simple tutorial, we will get our account's XAG balance, send a payment, and check the status of our payment.

Get our account's XAG balance.

In the following example, replace {ACCOUNT_ADDRESS_HERE} with your Address:
```
curl -X GET \
  http://localhost:3000/v3/accounts/{ACCOUNT_ADDRESS_HERE}/info
```

Send a payment

In the following example, replace {ACCOUNT_ADDRESS_HERE} with your Address (2 locations), {API_KEY_HERE} with your API key, and {DESTINATION_ADDRESS_HERE} with a destination address. If you are using the Testnet, you can use the address rPT1Sjq2YGrBMTttX4GZHjKu9dyfzbpAYe as a destination.

curl -X POST \
   http://localhost:3000/v3/payments \
   -H 'Authorization: Bearer {API_KEY_HERE}' \
   -H 'Content-Type: application/json' \
   -d '{
     "payment": {
         "source_address": "{ACCOUNT_ADDRESS_HERE}",
         "source_amount": {
             "value": "20",
             "currency": "XAG"
         },
         "destination_address": "{DESTINATION_ADDRESS_HERE}",
         "destination_amount": {
             "value": "20",
             "currency": "XAG"
         }
     },
     "submit": true
 }'

The response shows the transaction's identifying hash in the hash field of the tx_json object. Take note of this value for the next step.

Check the status of the payment.

In the following example, replace {TRANSACTION_ID} with the transaction's identifying hash from the previous step:
```
curl -X GET \
  http://localhost:3000/v3/transactions/{TRANSACTION_ID}
```

Docker Container

You can also run the service in a docker container using the Dockerfile in this repo.

Be sure you have done the secret_config step from the Initial Setup section.
Build the container.
```
docker build . -t <some_tag>
```
Run the container.

docker run -it -p 3000:3000 -v $PWD/.secret_config.js:/xrp-api/.secret_config.js
You should now be able to run the steps in the tutorial.

Debugging

We use log4js with 7-character category names and a shim that uses the NODE_DEBUG environment variable to enable logging of specific categories.
Example: NODE_DEBUG=prp/pmt node dev
Available categories:
prp/pmt: GET /v3/preparations/payments (./src/api-v3/paths/preparations/payments.ts )
During development, add logging by using the built-in log levels

Notes

Requires Node.js 10.4.0+ for BigInt support.