Merge pull request #44 from valorem-labs-inc/megsdevs/val-575-erc20-s…

…pot-price-streaming

spot prices received individually down the stream

proto/valorem/trade/v1/spot.proto

@@ -19,7 +19,7 @@ service Spot {
   //   stream of SpotPriceResponse: Continuously streams data about the spot prices
   //                                of the requested tokens on their respective chains
   //                                as updates are available.
-  rpc GetSpotPrice (SpotPriceRequest) returns (stream SpotPriceResponse);
+  rpc GetSpotPrice (SpotPriceRequest) returns (stream SpotPriceInfo);
 }
 
 // SpotPriceRequest encapsulates the details of the tokens for which
@@ -31,14 +31,6 @@ message SpotPriceRequest {
   repeated SpotPriceInfo spot_price_info = 1;
 }
 
-// SpotPriceResponse provides the fetched spot prices for the tokens specified in the request.
-message SpotPriceResponse {
-
-  // spot_price_info holds the data about the fetched spot prices for each of the
-  // tokens specified in the request.
-  repeated SpotPriceInfo spot_price_info = 1;
-}
-
 // SpotPriceInfo represents the details and the spot price (if available) for a single token
 // on a particular blockchain.
 message SpotPriceInfo {