API Reference

The service allows users to easily query for recent price updates via a REST API or via a websocket

Through a REST API Endpoint

A user could use this endpoint to query symbol price quotes via REST API. Our REST API endpoints could be found at: https://api.eo.app

Get Rate

• Endpoint: /api/v1/get_rate

• Method: GET

• Parameters:

  • symbol (string, required): The symbol for which to get the rate.

• Authentication The REST API authentication method uses a username and password. The username is the API key provided to you by EO, and the password should be left blank.

$ curl -X GET -u your_api_key "https://api.testnet.eo.app/api/v1/get_feed?symbol=eth"
{
    "symbol":"eth",  
    "rate":"2235520000000000000000",   
    "timestamp":1704645014000,  
    "data":"0x0c64cc6cb523085bac8aa2221d5458999...2309417974f4a72b98"
} 

Get Symbols

• Endpoint: /api/v1/get_symbols

• Method: GET

Example

curl -u your_api_key: 'https://api.eo.app/api/v1/get_symbols'

Response

["jpy", "eth", "btc"]

Socket.IO API

We provide a simple socket stream using the standard Socket.IO library. The message protocol is described in the following section and includes a connection, authentication and subscribe phases.

Connection

Connection is made to our EO api endpoint at https://api.testnet.eo.app. Once connected the consumer can initiate an authentication event.

Request Events

1. authenticate

• name: authenticate

• payload:

{ 
  "token": "your_api_key" // your blockchain oracle api key
}

1. subscribe

   • name: subscribe

   • payload:

   {
      "topic": "feed", //(string, required): The topic to subscribe to (e.g., 'feed').
      "symbols": ["btc", "eth", "jpy"] //(array of strings, optional): An array of symbols to subscribe to. If empty, subscribe to all symbols.
   }

2. authenticated

   • This message is received when your client was successfully authenticated with a valid API key. Once you receive this it's a good trigger point for subscribing to quote feeds.

   • name: 'authenticated'

   • payload: none

3. quote

   • name: quote

   • payload:

   {
     "symbol": "eth",
     "rate": "1923.45", 
     "timestamp": 1238971228, 
     "data": "0xbd3de674b8bd65........93c9220fb3202e405266", // provable merkle tree
    }