Treehouse tETH APR handler

.changeset/hungry-elephants-beg.md

@@ -0,0 +1,5 @@
+---
+'backend': minor
+---
+
+Treehouse tETH APR handler

config/mainnet.ts

@@ -278,6 +278,7 @@ export default <NetworkData>{
             token: '0x09db87a538bd693e9d08544577d5ccfaa6373a48',
         },
         sveth: true,
+        teth: true,
         defaultHandlers: {
             uniETH: {
                 tokenAddress: '0xf1376bcef0f78459c0ed0ba5ddce976f1ddf51f4',

modules/pool/lib/apr-data-sources/yb-apr-handlers/index.ts

@@ -27,6 +27,7 @@ const sourceToHandler = {
     sveth: sources.svEthAprHandler,
     dforce: sources.DForce,
     defillama: sources.Defillama,
+    teth: sources.TreehouseAprHandler,
 };
 
 export class YbAprHandlers {

modules/pool/lib/apr-data-sources/yb-apr-handlers/sources/index.ts

@@ -21,3 +21,4 @@ export * from './etherfi-apr-handler';
 export * from './sv-eth';
 export * from './dforce-apr-handler';
 export * from './defillama-apr-handler';
+export * from './teth';

modules/pool/lib/apr-data-sources/yb-apr-handlers/sources/teth.ts

@@ -0,0 +1,38 @@
+import { AprHandler } from '../types';
+
+const TETH = '0xd11c452fc99cf405034ee446803b6f6c1f6d5ed8';
+const url = 'https://api.treehouse.finance/rate/mey';
+
+// The apr config needs to be custom made as the resulting value
+// is equal to Lido's wstETH APR plus the data from the below query.
+export class TreehouseAprHandler implements AprHandler {
+    constructor() {}
+
+    async getAprs() {
+        try {
+            const response = await fetch(url);
+            const { key, message, data } = (await response.json()) as { key: string; message: string; data: string };
+            if (key !== 'SUCCESS') {
+                throw new Error('Treehouse API failed: ' + message);
+            }
+
+            // Get Lido wstETH APR
+            const lido = await fetch('https://eth-api.lido.fi/v1/protocol/steth/apr/sma');
+            const {
+                data: { smaApr },
+            } = (await lido.json()) as { data: { smaApr: number } };
+
+            const aprs = {
+                [TETH]: {
+                    apr: (parseFloat(data) + smaApr) / 100,
+                    isIbYield: true,
+                },
+            };
+
+            return aprs;
+        } catch (error) {
+            console.error(`Treehouse IB APR handler failed: `, error);
+            return {};
+        }
+    }
+}