If you're using Web3 v1 then you can use web3.eth.getTransactionReceipt(tx)
. It returns logs
property as a part of a result.
You can categorize events by looking at their topics
property.
Sample getTransactionReceipt
result:
{
"transactionHash": "0x7e2e90d913246933b30049c568d9a9768eca5be6fed331656458c2a479f30908",
"transactionIndex": 0,
"blockHash": "0x2af7bb564cc6a4155895b3238d5a0f227ecae2bfc5e65d24be5066f7a0e1b035",
"blockNumber": 127,
"from": "0x9442ed348b161af888e6cb999951ae8b961f7b4b",
"to": "0xf1365f7f85c20885cab2472d36c59861bcfbd071",
"gasUsed": 298630,
"cumulativeGasUsed": 298630,
"contractAddress": null,
"logs": [
{
"logIndex": 0,
"transactionIndex": 0,
"transactionHash": "0x7e2e90d913246933b30049c568d9a9768eca5be6fed331656458c2a479f30908",
"blockHash": "0x2af7bb564cc6a4155895b3238d5a0f227ecae2bfc5e65d24be5066f7a0e1b035",
"blockNumber": 127,
"address": "0xF1365F7F85C20885caB2472d36c59861BCfbD071",
"data": "0x",
"topics": [
"0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
"0x0000000000000000000000000000000000000000000000000000000000000000",
"0x0000000000000000000000005b1b89a48c1fb9b6ef7fb77c453f2aaf4b156d45",
"0x0000000000000000000000000000000000000000000000000000000000000000"
],
"type": "mined",
"id": "log_3b3793c3"
},
{
"logIndex": 1,
"transactionIndex": 0,
"transactionHash": "0x7e2e90d913246933b30049c568d9a9768eca5be6fed331656458c2a479f30908",
"blockHash": "0x2af7bb564cc6a4155895b3238d5a0f227ecae2bfc5e65d24be5066f7a0e1b035",
"blockNumber": 127,
"address": "0xF1365F7F85C20885caB2472d36c59861BCfbD071",
"data": "0x00000000000000000000000000000000000000000000000000000000000dbba00000000000000000000000005b1b89a48c1fb9b6ef7fb77c453f2aaf4b156d45",
"topics": [
"0xc0300f89fa66c737609c90575f912c101a539bdc6659f1562ba9b0868f8d181d",
"0x0000000000000000000000000000000000000000000000000000000000000000"
],
"type": "mined",
"id": "log_f5493494"
}
],
"status": true,
"logsBloom": "0x00000000000000000000000000000100000000000000000000000000000000002000000000000000000000000000000000000000000000040000000000000000000000000000000000800008000008000000000000000000000000000000000000000000020000000000000000000800000000000000000000400010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000002000000000000000000020000000000200000000000000000000020000000000000000000000000000000000000000000000000000000000000000000",
"v": "0x2dc32acb6eb",
"r": "0xc61fe8837727dda287ab1253006832ca7546a191580dd2e3d676f5e77bdd3c9f",
"s": "0x6db737b383a9cfd5f59bc41351adf0665fea86b6708c123f7103413d43972859"
}