reverse-quote

Query the input qty given output amount and token. For example: How many BNB I need to buy 200 BUSD

bsc/pcs/reverse-quote

POST https://cryptotalk-public-gateway-byeii62k.de.gateway.dev/bsc/pcs/reverse-quote

Query Parameters

Name	Type	Description
key	string	API Key

Request Body

Name	Type	Description
params	object	{ "frm_tkn_addr" : "0xf859bf77cbe8699013d6dbc7c2b926aaf307f830", "amt_float" : 1, "to_tkn_addr" : "0x67ee3cb086f8a16f34bee3ca72fad36f7db929e2" }

200

{
  "isError": false,
  "errorMsg": "NA",
  "operation": "QUOTE",
  "from_tkn": "BRY",
  "to_tkn": "DODO",
  "amt_float": 1,
  "data": {
    "bestRate": {
      "quote": 0.4087634569590731,
      "route": [
        "BRY",
        "WBNB",
        "DODO"
      ],
      "route_addr": [
        "0xf859bf77cbe8699013d6dbc7c2b926aaf307f830",
        "0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c",
        "0x67ee3cb086f8a16f34bee3ca72fad36f7db929e2"
      ]
    },
    "bestGas": {
      "quote": 0.4087634569590731,
      "route": [
        "BRY",
        "WBNB",
        "DODO"
      ],
      "route_addr": [
        "0xf859bf77cbe8699013d6dbc7c2b926aaf307f830",
        "0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c",
        "0x67ee3cb086f8a16f34bee3ca72fad36f7db929e2"
      ]
    }
  }
}

Sample Code: How many BNB I need to buy 100 BUSD?

async function reverseQuote(){
    const fetch         = require('node-fetch');
    const _             = require('lodash');
    const amount        = 100;
    const TOKEN_LIST    = "https://cryptotalk-public-gateway-byeii62k.de.gateway.dev/bsc/tokens-list";
    const QUOTE_URL     = "https://cryptotalk-public-gateway-byeii62k.de.gateway.dev/bsc/pcs/reverse-quote";
    const API_KEY       = "AIzaSyCngkz41JSdBMlr4iKqAMLiTMHD9TfQvuc";
  
      async function localStylePost(URL, body){
          let txn_response = await fetch(URL, { method : 'post', body : JSON.stringify({ params : body}), headers: { 'Content-Type': 'application/json'}});
          return txn_response.json();    
      }
  
      async function localStyleGet(URL, query){
          let txn_response = await fetch(URL + query);
          return txn_response.json();
      }
      
      
    console.log("\nstep - 1 : Getting the available token list\n");
    let token_list_object = await localStyleGet(TOKEN_LIST + "?key=" + API_KEY, "");
  
    console.log("step - 2 : Get Quote : How many BNB I need to buy 100 BUSD\n");
    let quote_req_body = {
              frm_tkn_addr  : _.find(token_list_object.data, ['symbol', 'BNB']).address,
              to_tkn_addr   : _.find(token_list_object.data, ['symbol', 'BUSD']).address,
              amt_float     : amount
          }
    let quote_response = await localStylePost(QUOTE_URL + "?key=" + API_KEY, quote_req_body);
        quote_response = quote_response.data.bestRate;
    console.log(quote_response);
  
}