GRPC Documentation - ValidatorAPI

The validator_api.proto defines the gRPC service interface for the Bitcoin SV transaction validation service. It specifies the methods and message types for transaction validation, health checking, and block information retrieval.

Table of Contents

• GRPC Documentation - ValidatorAPI
  • Table of Contents
• validator_api.proto
  • EmptyMessage
  • GetBlockHeightResponse
  • GetMedianBlockTimeResponse
  • HealthResponse
  • ValidateTransactionBatchRequest
  • ValidateTransactionBatchResponse
  • ValidateTransactionRequest
  • ValidateTransactionResponse
  • ValidatorAPI
• Scalar Value Types

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validator_api.proto

EmptyMessage

Represents an empty request message. Used for endpoints that don't require input parameters. swagger:model EmptyMessage

GetBlockHeightResponse

Provides the current block height. swagger:model GetBlockHeightResponse

Field	Type	Label	Description
height	uint32		Current block height

GetMedianBlockTimeResponse

Provides the median time of recent blocks. Used for time-based validation rules. swagger:model GetMedianBlockTimeResponse

Field	Type	Label	Description
median_time	uint32		Median time of recent blocks

HealthResponse

Provides health check information for the validation service. swagger:model HealthResponse

Field	Type	Label	Description
ok	bool		Overall health status
details	string		Detailed health information
timestamp	google.protobuf.Timestamp		Timestamp of health check

ValidateTransactionBatchRequest

Contains multiple transactions for batch validation. swagger:model ValidateTransactionBatchRequest

Field	Type	Label	Description
transactions	ValidateTransactionRequest	repeated	Array of transactions to validate

ValidateTransactionBatchResponse

Provides batch validation results for multiple transactions. swagger:model ValidateTransactionBatchResponse

Field	Type	Label	Description
valid	bool		Overall batch validation status
errors	errors.TError	repeated	Array of error messages, one per transaction
metadata	bytes	repeated	Array of metadata for each transaction

ValidateTransactionRequest

Contains data for transaction validation. swagger:model ValidateTransactionRequest

Field	Type	Label	Description
transaction_data	bytes		Raw transaction data to validate
block_height	uint32		Block height for validation context
skip_utxo_creation	bool	optional	Skip UTXO creation for validation
add_tx_to_block_assembly	bool	optional	Add transaction to block assembly
skip_policy_checks	bool	optional	Skip policy checks
create_conflicting	bool	optional	Create conflicting transaction

ValidateTransactionResponse

Provides transaction validation results. swagger:model ValidateTransactionResponse

Field	Type	Label	Description
valid	bool		Validation result (true if valid)
txid	bytes		Transaction ID of the validated transaction
reason	string		Reason for rejection if invalid
metadata	bytes		Additional metadata for the transaction

ValidatorAPI

Service provides methods for transaction validation and related operations.

Method Name	Request Type	Response Type	Description
HealthGRPC	EmptyMessage	HealthResponse	Checks the health status of the validation service. Returns detailed health information including service status and timestamp.
ValidateTransaction	ValidateTransactionRequest	ValidateTransactionResponse	Validates a single transaction. Performs comprehensive validation including script verification and UTXO checks.
ValidateTransactionBatch	ValidateTransactionBatchRequest	ValidateTransactionBatchResponse	Validates multiple transactions in a single request. Provides efficient batch processing of transactions.
GetBlockHeight	EmptyMessage	GetBlockHeightResponse	Retrieves the current block height. Used for validation context and protocol upgrade determination.
GetMedianBlockTime	EmptyMessage	GetMedianBlockTimeResponse	Retrieves the median time of recent blocks. Used for time-based validation rules.

Scalar Value Types

.proto Type	Notes	C++	Java	Python	Go	C#	PHP	Ruby
double		double	double	float	float64	double	float	Float
float		float	float	float	float32	float	float	Float
int32	Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead.	int32	int	int	int32	int	integer	Bignum or Fixnum (as required)
int64	Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead.	int64	long	int/long	int64	long	integer/string	Bignum
uint32	Uses variable-length encoding.	uint32	int	int/long	uint32	uint	integer	Bignum or Fixnum (as required)
uint64	Uses variable-length encoding.	uint64	long	int/long	uint64	ulong	integer/string	Bignum or Fixnum (as required)
sint32	Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s.	int32	int	int	int32	int	integer	Bignum or Fixnum (as required)
sint64	Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s.	int64	long	int/long	int64	long	integer/string	Bignum
fixed32	Always four bytes. More efficient than uint32 if values are often greater than 2^28.	uint32	int	int	uint32	uint	integer	Bignum or Fixnum (as required)
fixed64	Always eight bytes. More efficient than uint64 if values are often greater than 2^56.	uint64	long	int/long	uint64	ulong	integer/string	Bignum
sfixed32	Always four bytes.	int32	int	int	int32	int	integer	Bignum or Fixnum (as required)
sfixed64	Always eight bytes.	int64	long	int/long	int64	long	integer/string	Bignum
bool		bool	boolean	boolean	bool	bool	boolean	TrueClass/FalseClass
string	A string must always contain UTF-8 encoded or 7-bit ASCII text.	string	String	str/unicode	string	string	string	String (UTF-8)
bytes	May contain any arbitrary sequence of bytes.	string	ByteString	str	[]byte	ByteString	string	String (ASCII-8BIT)

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