Get Opcodes Traces

Get the opcode traces for a historical transaction on the network with the given transaction ID or hash.

This method will use 5000 Compute Units.

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Get the opcode traces for a historical transaction on the network with the given transaction ID or hash

Re-executes a transaction and returns a result containing detailed information for the execution, including all values from the {@code stack}, {@code memory} and {@code storage} and the entire trace of opcodes that were executed during the replay.

Note that to provide the output, the transaction needs to be re-executed on the EVM, which may take a significant amount of time to complete if stack and memory information is requested.

get

/api/v1/contracts/results/{transactionIdOrHash}/opcodes

Path parameters

transactionIdOrHashstringrequired

Transaction Id or a 32 byte hash with optional 0x prefix

Example: {"value":"0.0.10-1234567890-000000000"}

Pattern: ^(0x)?[A-Fa-f0-9]{64}|(\d{1,10})\.(\d{1,10})\.(\d{1,10})-(\d{1,19})-(\d{1,9})$

Query parameters

stackboolean · default: true

If provided and set to false, stack information will not be included in the response

Example: true

memoryboolean

If provided and set to true, memory information will be included in the response

Example: false

storageboolean

If provided and set to true, storage information will be included in the response

Example: false

Responses

application/json

application/json

application/json

application/json

cURL

JavaScript

Python

HTTP

cURL

curl -L \
  --url 'https://mainnet.hedera.validationcloud.io/v1/<YOUR_API_KEY>/api/v1/contracts/results/{transactionIdOrHash}/opcodes'

200

400

404

429

200

{
  "address": "text",
  "contract_id": "0.0.2",
  "failed": true,
  "gas": 1,
  "return_value": "text",
  "opcodes": [
    {
      "depth": 1,
      "gas": 1,
      "gas_cost": 1,
      "op": "text",
      "pc": 1,
      "reason": "text",
      "memory": [
        "text"
      ],
      "stack": [
        "text"
      ],
      "storage": {
        "ANY_ADDITIONAL_PROPERTY": "text"
      }
    }
  ]
}

OK