feat: add STRK staking to zkLend (#12466)

projects/zklend-strk-staking/abi.js

@@ -0,0 +1,19 @@
+const strkStaking = [
+  {
+    "type": "function",
+    "name": "get_total_stake",
+    "inputs": [],
+    "outputs": [
+      {
+        "type": "core::integer::u128"
+      }
+    ],
+    "state_mutability": "view"
+  },
+]
+const strkStakingAbi = {}
+strkStaking.forEach(i => strkStakingAbi[i.name] = i)
+
+module.exports = {
+  strkStakingAbi,
+}

projects/zklend-strk-staking/index.js

@@ -0,0 +1,17 @@
+const ADDRESSES = require('../helper/coreAssets.json')
+const { call } = require('../helper/chain/starknet')
+const { strkStakingAbi } = require('./abi');
+
+const stakingContract = '0x00ca1702e64c81d9a07b86bd2c540188d92a2c73cf5cc0e508d949015e7e84a7'
+
+async function tvl(api) {
+  const stakedAmount = await call({ target: stakingContract, abi: strkStakingAbi.get_total_stake })
+  api.add(ADDRESSES.starknet.STRK, stakedAmount)
+}
+
+module.exports = {
+  methodology: 'The TVL is calculated as a sum of total STRK deposited into zkLend\'s staking contract',
+  starknet: {
+    tvl,
+  },
+}