ethwallet#GetBalance: ensure provider is available, or error

pkieltyka · pkieltyka · commit 8295203dbdc6 · 2025-10-30T11:06:20.000-04:00
diff --git a/ethwallet/ethwallet.go b/ethwallet/ethwallet.go
@@ -198,6 +198,10 @@ func (w *Wallet) GetBalance(ctx context.Context, optBlockNum ...*big.Int) (*big.
 	if len(optBlockNum) > 0 {
 		blockNum = optBlockNum[0]
 	}
+	provider := w.GetProvider()
+	if provider == nil {
+		return nil, fmt.Errorf("ethwallet: provider is not set")
+	}
 	return w.GetProvider().BalanceAt(ctx, w.Address(), blockNum)
 }
 

Original file line number	Diff line number	Diff line change
`@@ -198,6 +198,10 @@ func (w Wallet) GetBalance(ctx context.Context, optBlockNum ...big.Int) (*big.`
`198`	`198`	`if len(optBlockNum) > 0 {`
`199`	`199`	`blockNum = optBlockNum[0]`
`200`	`200`	`}`
	`201`	`+ provider := w.GetProvider()`
	`202`	`+ if provider == nil {`
	`203`	`+ return nil, fmt.Errorf("ethwallet: provider is not set")`
	`204`	`+ }`
`201`	`205`	`return w.GetProvider().BalanceAt(ctx, w.Address(), blockNum)`
`202`	`206`	`}`
`203`	`207`