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.

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.

GEThttps://mainnet.hedera.validationcloud.io/v1/<YOUR_API_KEY>/api/v1/contracts/results/{transactionIdOrHash}/opcodes

Path parameters

transactionIdOrHash*string

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

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

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

Response

Body

address*string (binary)

The address of the transaction recipient in hex. Zero address is set for transactions without a recipient (e.g., contract create)

contract_id*nullable EntityId (string)

Network entity ID in the format of shard.realm.num

Example: "0.0.2"

Pattern: ^\d{1,10}\.\d{1,10}\.\d{1,10}$

failed*boolean

Whether the transaction failed to be completely processed.

gas*integer (int64)

The gas used in tinybars

opcodes*array of Opcode (object)

The logs produced by the opcode logger

depth*integer (int32)

The current call depth

gas*integer (int64)

The remaining gas

gas_cost*integer (int64)

The cost for executing op

memory*nullable array of string (binary)

The EVM memory with items in hex

itemsstring (binary)

op*string

The opcode to execute

pc*integer (int32)

The program counter

reasonnullable string (binary)

The revert reason in hex

stack*nullable array of string (binary)

The EVM stack with items in hex

itemsstring (binary)

storage*nullable object

The storage slots (keys and values in hex) of the current contract which is read from and written to

Other propertiesstring (binary)

return_value*string (binary)

The returned data from the transaction in hex

Request

Response

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

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.

GEThttps://mainnet.hedera.validationcloud.io/v1/<YOUR_API_KEY>/api/v1/contracts/results/{transactionIdOrHash}/opcodes

Path parameters

transactionIdOrHash*string

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

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

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

Response

Body

address*string (binary)

The address of the transaction recipient in hex. Zero address is set for transactions without a recipient (e.g., contract create)

contract_id*nullable EntityId (string)

Network entity ID in the format of shard.realm.num

Example: "0.0.2"

Pattern: ^\d{1,10}\.\d{1,10}\.\d{1,10}$

failed*boolean

Whether the transaction failed to be completely processed.

gas*integer (int64)

The gas used in tinybars

opcodes*array of Opcode (object)

The logs produced by the opcode logger

depth*integer (int32)

The current call depth

gas*integer (int64)

The remaining gas

gas_cost*integer (int64)

The cost for executing op

memory*nullable array of string (binary)

The EVM memory with items in hex

itemsstring (binary)

op*string

The opcode to execute

pc*integer (int32)

The program counter

reasonnullable string (binary)

The revert reason in hex

stack*nullable array of string (binary)

The EVM stack with items in hex

itemsstring (binary)

storage*nullable object

The storage slots (keys and values in hex) of the current contract which is read from and written to

Other propertiesstring (binary)

return_value*string (binary)

The returned data from the transaction in hex

Request

Response