Sdk add cronos (#192)

* add cronos sign fx and example

* bump v4.1.4

examples/cronos.ts

@@ -0,0 +1,87 @@
+import { Kiln, KILN_VALIDATORS, croToBasecro } from '../src/kiln.ts';
+import type { FireblocksIntegration } from '../src/fireblocks.ts';
+import { loadEnv } from './env.ts';
+
+const { kilnApiKey, kilnAccountId, kilnApiUrl, fireblocksApiKey, fireblocksApiSecret, fireblocksVaultId } =
+  await loadEnv();
+
+const k = new Kiln({
+  baseUrl: kilnApiUrl,
+  apiToken: kilnApiKey,
+});
+
+const vault: FireblocksIntegration = {
+  config: {
+    apiKey: fireblocksApiKey,
+    secretKey: fireblocksApiSecret,
+    basePath: 'https://api.fireblocks.io/v1',
+  },
+  vaultId: fireblocksVaultId,
+};
+
+//
+// Get the pubkey from Fireblocks
+//
+const fireblocksPubkey = (
+  await k.fireblocks.getSdk(vault).vaults.getPublicKeyInfo({
+    algorithm: 'MPC_ECDSA_SECP256K1',
+    derivationPath: JSON.stringify([44, 394, Number(vault.vaultId), 0, 0]),
+    compressed: true,
+  })
+).data.publicKey;
+if (!fireblocksPubkey) {
+  console.log('Failed to get pubkey');
+  process.exit(0);
+}
+
+//
+// Craft the transaction
+//
+console.log('Crafting transaction...');
+const txRequest = await k.client.POST('/cro/transaction/stake', {
+  body: {
+    account_id: kilnAccountId,
+    pubkey: fireblocksPubkey,
+    validator: KILN_VALIDATORS.CRO.mainnet.KILN,
+    amount_basecro: croToBasecro('0.01').toString(),
+    restake_rewards: false,
+  },
+});
+if (txRequest.error) {
+  console.log('Failed to craft transaction:', txRequest);
+  process.exit(1);
+} else {
+  console.log('Crafted transaction:', txRequest.data);
+}
+console.log('\n\n\n');
+
+//
+// Sign the transaction
+//
+console.log('Signing transaction...');
+const signRequest = await (async () => {
+  try {
+    return await k.fireblocks.signCroTx(vault, txRequest.data.data);
+  } catch (err) {
+    console.log('Failed to sign transaction:', err);
+    process.exit(1);
+  }
+})();
+console.log('Signed transaction:', signRequest);
+console.log('\n\n\n');
+
+//
+// Broadcast the transaction
+//
+console.log('Broadcasting transaction...');
+const broadcastedRequest = await k.client.POST('/cro/transaction/broadcast', {
+  body: {
+    tx_serialized: signRequest.signed_tx.data.signed_tx_serialized,
+  },
+});
+if (broadcastedRequest.error) {
+  console.log('Failed to broadcast transaction:', broadcastedRequest);
+  process.exit(1);
+} else {
+  console.log('Broadcasted transaction:', broadcastedRequest.data);
+}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@kilnfi/sdk",
-  "version": "4.1.3",
+  "version": "4.1.4",
   "autor": "Kiln <[email protected]> (https://kiln.fi)",
   "license": "BUSL-1.1",
   "description": "JavaScript sdk for Kiln API",

src/fireblocks.ts

@@ -506,6 +506,61 @@ export class FireblocksService {
     };
   }
 
+  /**
+   * Sign a CRO transaction on Fireblocks
+   */
+  async signCroTx(
+    integration: FireblocksIntegration,
+    tx: components['schemas']['CROUnsignedTx'] | components['schemas']['CROStakeUnsignedTx'],
+    note?: string,
+  ): Promise<{
+    signed_tx: { data: components['schemas']['CROSignedTx'] };
+    fireblocks_tx: TransactionResponse;
+  }> {
+    const payload = {
+      rawMessageData: {
+        messages: [
+          {
+            content: tx.unsigned_tx_hash,
+            derivationPath: [44, 394, integration.vaultId, 0, 0],
+            preHash: {
+              content: tx.unsigned_tx_serialized,
+              hashAlgorithm: 'SHA256',
+            },
+          },
+        ],
+        algorithm: SignedMessageAlgorithmEnum.EcdsaSecp256K1,
+      },
+    };
+
+    const fbSigner = this.getSigner(integration);
+    const fbNote = note ? note : 'CRO tx from @kilnfi/sdk';
+    const fbTx = await fbSigner.sign(payload, undefined, fbNote);
+    const signature = fbTx.signedMessages?.[0]?.signature?.fullSig;
+
+    if (!signature) {
+      throw new Error(ERRORS.MISSING_SIGNATURE);
+    }
+
+    const preparedTx = await this.client.POST('/cro/transaction/prepare', {
+      body: {
+        pubkey: tx.pubkey,
+        tx_body: tx.tx_body,
+        tx_auth_info: tx.tx_auth_info,
+        signature: signature,
+      },
+    });
+
+    if (preparedTx.error) {
+      throw new Error(ERRORS.FAILED_TO_PREPARE);
+    }
+
+    return {
+      signed_tx: preparedTx.data,
+      fireblocks_tx: fbTx,
+    };
+  }
+
   /**
    * Sign a NOBLE transaction on Fireblocks
    */

src/utils.ts

@@ -78,6 +78,12 @@ export const omToUom = (om: string): bigint => {
   return parseUnits(om, 6);
 };
 
+/**
+ * Convert CRO to basecro
+ */
+export const croToBasecro = (cro: string): bigint => {
+  return parseUnits(cro, 8);
+};
 /**
  * Convert uZETA to ZETA
  */
@@ -204,6 +210,13 @@ export const uomToOm = (uom: bigint): string => {
   return formatUnits(uom, 6);
 };
 
+/**
+ * Convert basecro to CRO
+ */
+export const basecroToCro = (basecro: bigint): string => {
+  return formatUnits(basecro, 8);
+};
+
 /**
  * Get a cosmos address from its public key and prefix
  * @param pubkey

src/validators.ts

@@ -90,6 +90,11 @@ export const KILN_VALIDATORS = {
       KILN: 'mantravaloper146mj09yzu3mvz7pmy4dvs4z9wr2mst7ram37xw',
     },
   },
+  CRO: {
+    mainnet: {
+      KILN: 'crocncl1lqm9hhzuqgutgswlff5yf9kmn7vx6pmksk4kvs',
+    },
+  },
   OSMO: {
     mainnet: {
       INTEROP: 'osmovaloper146mj09yzu3mvz7pmy4dvs4z9wr2mst7rq8p8gy',