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Use raw balance value if tokenDecimals property is missing (#1299)

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* use raw balance value if tokenDecimals property is missing

* fmt
This commit is contained in:
Svyatoslav Nikolsky
2022-01-31 14:44:11 +03:00
committed by Bastian Köcher
parent c0f6509d40
commit 01ee74c949
1 changed files with 14 additions and 3 deletions
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bridges/relays/lib-substrate-relay/src/messages_metrics.rs
+14 -3
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@@ -202,9 +202,20 @@ where
return Ok(metrics)
}
let token_decimals = client.token_decimals().await?.ok_or_else(|| {
SubstrateError::Custom(format!("Missing token decimals from {} system properties", C::NAME))
})?;
// if `tokenDecimals` is missing from system properties, we'll be using
let token_decimals = client
.token_decimals()
.await?
.map(|token_decimals| {
log::info!(target: "bridge", "Read `tokenDecimals` for {}: {}", C::NAME, token_decimals);
token_decimals
})
.unwrap_or_else(|| {
// turns out it is normal not to have this property - e.g. when polkadot binary is
// started using `polkadot-local` chain. Let's use minimal nominal here
log::info!(target: "bridge", "Using default (zero) `tokenDecimals` value for {}", C::NAME);
0
});
let token_decimals = u32::try_from(token_decimals).map_err(|e| {
anyhow::format_err!(
"Token decimals value ({}) of {} doesn't fit into u32: {:?}",