add symbols

README.md

@@ -522,9 +522,10 @@ Latest price for a symbol, not providing the symbol will return prices for all s
 console.log(await client.prices())
 ```
 
-| Param  | Type   | Required |
-| ------ | ------ | -------- |
-| symbol | String | false    |
+| Param   | Type     | Required |
+| ------- | -------- | -------- |
+| symbol  | String   | false    |
+| symbols | String[] | false    |
 
 <details>
 <summary>Output</summary>

index.d.ts

@@ -474,7 +474,7 @@ declare module 'binance-api-node' {
     orderTest(options: NewOrderSpot): Promise<Order>
     orderOco(options: NewOcoOrder): Promise<OcoOrder>
     ping(): Promise<boolean>
-    prices(options?: { symbol?: string }): Promise<{ [index: string]: string }>
+    prices(options?: { symbol?: string, symbols?: string[] }): Promise<{ [index: string]: string }>
     avgPrice(options?: { symbol: string }): Promise<AvgPriceResult | AvgPriceResult[]>
     time(): Promise<number>
     trades(options: { symbol: string; limit?: number }): Promise<TradeResult[]>

src/http-client.js

@@ -326,6 +326,13 @@ const aggTrades = (pubCall, payload, endpoint = '/api/v3/aggTrades') =>
     }),
   )
 
+  // Convert the array to string to prevent unacceptable encoding
+  const processSymbols = payload => {
+    if (payload?.symbols) {
+      payload.symbols = `["${payload.symbols.join('"')}"]`
+    }
+  }
+
 export default opts => {
   const endpoints = {
     base: (opts && opts.httpBase) || BASE,
@@ -355,8 +362,8 @@ export default opts => {
       kCall('/api/v3/historicalTrades', payload),
 
     dailyStats: payload => pubCall('/api/v3/ticker/24hr', payload),
-    prices: payload =>
-      pubCall('/api/v3/ticker/price', payload).then(r =>
+    prices: payload => 
+      pubCall('/api/v3/ticker/price', processSymbols(payload)).then(r =>
         (Array.isArray(r) ? r : [r]).reduce((out, cur) => ((out[cur.symbol] = cur.price), out), {}),
       ),
 

test/index.js

@@ -103,6 +103,13 @@ test('[REST] individual price', async t => {
   t.truthy(prices.ETHUSDT)
 })
 
+test('[REST] multiple prices', async t => {
+  const prices = await client.prices({ symbols: ["ETHUSDT","ETHBUSD"] })
+  t.truthy(prices)
+  t.truthy(prices.ETHUSDT)
+  t.truthy(prices.ETHBUSD)
+})
+
 test('[REST] avgPrice', async t => {
   const res = await client.avgPrice({ symbol: 'ETHBTC' })
   t.truthy(res)