TronWeb allows developers to easily perform multi-signing with the tronWeb.trx.multiSign method. The is an example of the workflow.
1. Create transaction
JavaScript
Copy const originalTransaction = await tronWeb.transactionBuilder.sendTrx('41e0d5217904dcb2d5453c2359b86df9673046c4ce', 100000, '4164eb61f763d3374a998989f06929c1bad87175ba'); 2. Perform the Multi-Signing
JavaScript
Copy let signedTransaction = await tronWeb.trx.multiSign(originalTransaction, '47e5e1a590a44e7e6f4349a4e3ea6a4f9a791e3fccb115ffbddffdbf6d0588e6', 2);signedTransaction = await tronWeb.trx.multiSign(signedTransaction, 'd5f244307d3ab6dc5739b83ec913b662a24f87e873190e9c1a2d9709f579540c', 2);signedTransaction = await tronWeb.trx.multiSign(signedTransaction, '9944b7010db0d44a861bca112e40365a934727c5c17f8dfd3b9cc7b31e8aeaf1', 2); Signature result:JSON
Copy { "signature": [ "2c25a81333fd83edec33ebae16cb3dfb979cfc4ce035665953c2b61179b06cb9f0625c660947404c5a1e17331cc375579bed7295ebe6635eb30ab79e73c16e6a01", "86cfad6c7bc086c04c27267ef4a3c5ae3ea394e05e8402713b0b7e624546b76e30518ebf897c7495b29bbb372ba94d65ba927bd48a4fa9c36e439c975b7f88f500", "4d980f85de1a1bcc0c45fa118276a3a6319a6cf404ee68f5d460fb075bd41f6a8702e0448db2eb55cd74c4dd85d53909597eb05401a48aaa44bdb3a327e47d5001" ], "txID": "7034c0a26ffc1010c2cba113d9685cbe464793abe0a1d0d21c2e593df7990a84", "raw_data": { "contract": [ { "parameter": { "value": { "amount": 100000, "owner_address": "4164eb61f763d3374a998989f06929c1bad87175ba", "to_address": "41e0d5217904dcb2d5453c2359b86df9673046c4ce" }, "type_url": "type.googleapis.com/protocol.TransferContract" }, "type": "TransferContract", "Permission_id": 2 } ], "ref_block_bytes": "02d6", "ref_block_hash": "cf96636fd7767b20", "expiration": 1555454166000, "timestamp": 1555454106555 }, "raw_data_hex": "0a0202d62208cf96636fd7767b2040f087acc2a22d5a69080112630a2d747970652e676f6f676c65617069732e636f6d2f70726f746f636f6c2e5472616e73666572436f6e747261637412320a154164eb61f763d3374a998989f06929c1bad87175ba121541e0d5217904dcb2d5453c2359b86df9673046c4ce18a08d06280270bbb7a8c2a22d"} The method requires passing the original transaction, the private key for signing, and the permission ID. The permission ID should be generated when you update the account permission. You can overview your account permission and check the permission ID by calling the getAccount method.
Notes: If you use active permission, we will re-calculate the transaction ID, which differs from the original transaction after tronWeb.transactionBuilder.sendTrx or other methods.
3. Check Transaction's Sign Weight
The function tronweb.trx.getSignWeightallows you to check how many addresses have signed the transaction and the current weight. This function can be run either during the multi-signing process or after its completion.JavaScript
Copy const signWeight = await tronWeb.trx.getSignWeight(signedTransaction, 2); Result:JSON
Copy { "result": { }, "approved_list": [ "4164eb61f763d3374a998989f06929c1bad87175ba", "41e0d5217904dcb2d5453c2359b86df9673046c4ce", "41e3222fff601087f76ee803c0e09596b21282f10d" ], "permission": { "operations": "7fff1fc0037e0000000000000000000000000000000000000000000000000000", "keys": [ { "address": "4164eb61f763d3374a998989f06929c1bad87175ba", "weight": 1 }, { "address": "41e0d5217904dcb2d5453c2359b86df9673046c4ce", "weight": 1 }, { "address": "41e3222fff601087f76ee803c0e09596b21282f10d", "weight": 1 } ], "threshold": 3, "id": 2, "type": "Active", "permission_name": "active0" }, "current_weight": 3, "transaction": { "result": { "result": true }, "txid": "7100eddcc788b0956e0224470111bffaa99b465781a2abe75cbd2a29c82ade42", "transaction": { "signature": [ "bfc89f7a49fa233cfb2484c5e1fdb3c687815c68f198fc81b0cccbc1ccbb09c611d0f3d90a32d7e8dc1d85fde43c10b7cb586edde1833f7974fda42e951b94ed00", "8c167cd077d82f5b36e1d2bbc831711523dcc71494830cee6181b1435c44b22b751d6a72b425948db8aac3fb5f736bd2f9e689e18941002cafab1ff3caeb354d01", "64921a4760fd2b2fb8f76bb7feab50d49d6298774f120164c050f4e154d624445e9a620b051116ec674f62640adb5ff2d6b0934ba9187db1197d65f368fd5ebc00" ], "txID": "7100eddcc788b0956e0224470111bffaa99b465781a2abe75cbd2a29c82ade42", "raw_data": { "contract": [ { "parameter": { "value": { "amount": 100000, "owner_address": "4164eb61f763d3374a998989f06929c1bad87175ba", "to_address": "41e0d5217904dcb2d5453c2359b86df9673046c4ce" }, "type_url": "type.googleapis.com/protocol.TransferContract" }, "type": "TransferContract" } ], "ref_block_bytes": "03a9", "ref_block_hash": "f04705dfcc42a285", "expiration": 1555454799000, "timestamp": 1555454740761 }, "raw_data_hex": "0a0203a92208f04705dfcc42a2854098d9d2c2a22d5a69080112630a2d747970652e676f6f676c65617069732e636f6d2f70726f746f636f6c2e5472616e73666572436f6e747261637412320a154164eb61f763d3374a998989f06929c1bad87175ba121541e0d5217904dcb2d5453c2359b86df9673046c4ce18a08d062802709992cfc2a22d" } }} 4. Check Approved List
The function tronWeb.trx.getApprovedList allows you to check how many addresses have already signed (approved) the transaction.JavaScript
Copy const approvedList = await tronWeb.trx.getApprovedList(signedTransaction); Result:JSON
Copy { "result": { }, "approved_list": [ "4164eb61f763d3374a998989f06929c1bad87175ba", "41e0d5217904dcb2d5453c2359b86df9673046c4ce", "41e3222fff601087f76ee803c0e09596b21282f10d" ], "transaction": { "result": { "result": true }, "txid": "479d294569f9d16bb9db643383eae40d4d6df0fa081b6918cf5d831f6fcac1bc", "transaction": { "signature": [ "fe5eaa06536e431143612d7b967059480ade185c70ad3c7529ed72c91b74b5c705cc231a857247e5cec31cb1aceb2d9016d2fb2bf57124ec5314b2b1688d060701", "6951c7e651fdf79102d655acd6ed57e9c2ba8d4e9b7c1486b54c7d9912bf9e58bb5a4876593532f889858e819b41bb9ae60da7693a008fff7d335da34b9088e401", "9960d832d5d71556124ea04e783e7e15d4437c27933b90d834670d58f590a3a255d3081d12b7ddccd8a84060ad1294b0c19f9ee63fa12fd5c602695ff32f8b6300" ], "txID": "479d294569f9d16bb9db643383eae40d4d6df0fa081b6918cf5d831f6fcac1bc", "raw_data": { "contract": [ { "parameter": { "value": { "amount": 100000, "owner_address": "4164eb61f763d3374a998989f06929c1bad87175ba", "to_address": "41e0d5217904dcb2d5453c2359b86df9673046c4ce" }, "type_url": "type.googleapis.com/protocol.TransferContract" }, "type": "TransferContract" } ], "ref_block_bytes": "03e5", "ref_block_hash": "3dfe142fc7c242bf", "expiration": 1555454979000, "timestamp": 1555454919646 }, "raw_data_hex": "0a0203e522083dfe142fc7c242bf40b8d7ddc2a22d5a69080112630a2d747970652e676f6f676c65617069732e636f6d2f70726f746f636f6c2e5472616e73666572436f6e747261637412320a154164eb61f763d3374a998989f06929c1bad87175ba121541e0d5217904dcb2d5453c2359b86df9673046c4ce18a08d06280270de87dac2a22d" } }} 5. Broadcast Transaction
Once multi-signing completes, you can broadcast the signed transaction directly and check the transaction by using getTransactionById later.JavaScript
Copy const result = await = tronWeb.trx.broadcast(signedTransaction); Result:JSON
Copy { "result": true, "transaction": { "signature": [ "9ea568d070de64ce674d9db0d1c0dddbdf83435b4e60b27860fd7a017c071f9858062671ff938600b5cbd8b3475b2ab16df4c2076654f18a928e972ce3fe5e3600", "202db297c8b31d51e1ad9406aaad030b602af865810a58d19910858bba3825ef0143b3013b33ad15aa6680b6b735efd1b8d5a913f42ed7d04792b9200f69097401", "5c143c98ff4f9a7837eacd8ed26320b4a5544954241ca7985d73e6d099b1f8df0667d686e9e6ab5a2ae6be62e6795523b2cf423b3fc3a88523faf2408dac753001" ], "txID": "b25f3449384b0ea6b8c201596ed6998fb5581f4a68c5d467a268a4e60499ff1b", "raw_data": { "contract": [ { "parameter": { "value": { "amount": 100000, "owner_address": "4164eb61f763d3374a998989f06929c1bad87175ba", "to_address": "41e0d5217904dcb2d5453c2359b86df9673046c4ce" }, "type_url": "type.googleapis.com/protocol.TransferContract" }, "type": "TransferContract", "Permission_id": 2 } ], "ref_block_bytes": "0412", "ref_block_hash": "614e7424dfcf96fb", "expiration": 1555455114000, "timestamp": 1555455056464 }, "raw_data_hex": "0a0204122208614e7424dfcf96fb4090f6e5c2a22d5a69080112630a2d747970652e676f6f676c65617069732e636f6d2f70726f746f636f6c2e5472616e73666572436f6e747261637412320a154164eb61f763d3374a998989f06929c1bad87175ba121541e0d5217904dcb2d5453c2359b86df9673046c4ce18a08d06280270d0b4e2c2a22d" }} 