Add new endpoint for current values (w/o round id)

README.md

@@ -7,4 +7,57 @@ However, for testing it can be configured to return a fixed or random values by
 Starting provider:
 ```
 docker run --rm -it --publish "0.0.0.0:3101:3101" ghcr.io/flare-foundation/ftso-v2-example-value-provider
+```
+
+## Obtaining feed values
+
+There are two API endpoints: `/feed-values/<votingRound>` and `/feed-values/`, to be used by FTSO Scaling data provider and Fast Updates client respectively. In this (basic) example implementation, however, both endpoints map to the same service logic and return the latest feed values.
+
+## Sample usage
+
+Feed values for voting round id:
+```bash
+curl -X 'POST' \
+  'http://localhost:3101/feed-values/0' \
+  -H 'accept: application/json' \
+  -H 'Content-Type: application/json' \
+  -d '{
+  "feeds": [
+    { "category": 1, "name" : "BTC/USD" }
+  ]
+}'
+```
+
+Response:
+```json
+{
+  "votingRoundId": 0,
+  "data": [
+    { "feed": { "category": 1, "name": "BTC/USD" }, "value": 71287.34508311428 }
+  ]
+}
+
+```
+---
+Current values:
+```bash
+curl -X 'POST' \
+  'http://localhost:3101/feed-values/' \ 
+  -H 'accept: application/json' \
+  -H 'Content-Type: application/json' \
+  -d '{
+  "feeds": [
+    { "category": 1, "name" : "BTC/USD" }
+  ]
+}'
+```
+
+Response:
+```json
+{
+  "data": [
+    { "feed": { "category": 1, "name": "BTC/USD" }, "value": 71285.74004472858 }
+  ]
+}
+
 ```

src/app.controller.ts

@@ -1,7 +1,7 @@
 import { Body, Controller, Param, ParseIntPipe, Post, Inject, Logger } from "@nestjs/common";
 import { ApiTags } from "@nestjs/swagger";
 import { ExampleProviderService } from "./app.service";
-import { FeedValuesRequest, FeedValuesResponse } from "./dto/provider-requests.dto";
+import { FeedValuesRequest, FeedValuesResponse, RoundFeedValuesResponse } from "./dto/provider-requests.dto";
 
 @ApiTags("Feed Value Provider API")
 @Controller()
@@ -13,12 +13,21 @@ export class ExampleProviderController {
   async getFeedValues(
     @Param("votingRoundId", ParseIntPipe) votingRoundId: number,
     @Body() body: FeedValuesRequest
-  ): Promise<FeedValuesResponse> {
+  ): Promise<RoundFeedValuesResponse> {
     const values = await this.providerService.getValues(body.feeds);
     this.logger.log(`Feed values for voting round ${votingRoundId}: ${JSON.stringify(values)}`);
     return {
       votingRoundId,
       data: values,
     };
   }
+
+  @Post("feed-values/")
+  async getCurrentFeedValues(@Body() body: FeedValuesRequest): Promise<FeedValuesResponse> {
+    const values = await this.providerService.getValues(body.feeds);
+    this.logger.log(`Current feed values: ${JSON.stringify(values)}`);
+    return {
+      data: values,
+    };
+  }
 }

src/dto/provider-requests.dto.ts

@@ -13,7 +13,11 @@ export class FeedValueData {
   value: number;
 }
 
-export class FeedValuesResponse {
+export class RoundFeedValuesResponse {
   votingRoundId: number;
   data: FeedValueData[];
 }
+
+export class FeedValuesResponse {
+  data: FeedValueData[];
+}