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rpc: fix example comment and handle Dial error #32644

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rpc: fix example comment and handle Dial error #32644

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8 changes: 6 additions & 2 deletions rpc/client_example_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,7 @@ import (
// In this example, our client wishes to track the latest 'block number'
// known to the server. The server supports two methods:
//
// eth_getBlockByNumber("latest", {})
// eth_getBlockByNumber("latest", false)
// returns the latest block object.
//
// eth_subscribe("newHeads")
Expand All @@ -40,7 +40,11 @@ type Block struct {

func ExampleClientSubscription() {
// Connect the client.
client, _ := rpc.Dial("ws://127.0.0.1:8545")
client, err := rpc.Dial("ws://127.0.0.1:8545")
if err != nil {
fmt.Println("dial error:", err)
return
}
subch := make(chan Block)

// Ensure that subch receives the latest block.
Expand Down