Struct IndexServerBackend 

pub struct IndexServerBackend { /* private fields */ }

Scanning backend for BIP0352 index servers.

Connects to a BIP0352-compatible index server (e.g., BlindBit oracle) that provides pre-computed tweak data per block. This enables lightweight scanning with minimal bandwidth – the client only performs ECDH and script pubkey derivation, not full transaction parsing.

Construction

// Unauthenticated
let backend = IndexServerBackend::new("http://localhost:8080");

// With optional auth token
let backend = IndexServerBackend::with_auth("http://localhost:8080", "my-token");

No Retry Logic

Connection errors bubble up immediately. The caller owns retry policy.

Implementations

impl IndexServerBackend

pub fn new(base_url: &str) -> IndexServerBackend

Create a new index server backend.

The base_url trailing slash is trimmed for consistent path joining.

pub fn with_auth(base_url: &str, token: &str) -> IndexServerBackend

Create a new index server backend with an authorization token.

The token is sent as a Bearer token in the Authorization header.

Trait Implementations

impl ScanBackend for IndexServerBackend

fn scan_range( &self, from_height: u32, to_height: u32, scan_secret: &ScanSecretKey, spend_pubkey: &SpendPublicKey, labels: &LabelManager, on_match: &mut dyn FnMut(DetectedOutput), on_progress: &mut dyn FnMut(u32), ) -> Result<(), ScanError>

Scan a range of blocks [from_height, to_height] for SP payments.

fn scan_transaction( &self, _txid: &Txid, _scan_secret: &ScanSecretKey, _spend_pubkey: &SpendPublicKey, _labels: &LabelManager, ) -> Result<Vec<DetectedOutput>, ScanError>

Scan a single transaction by txid.