forked from cerc-io/plugeth
ethclient: add NetworkID method (#14791)
There is currently no simple way to obtain the network ID from a Client. This adds a NetworkID method that wraps the net_version JSON-RPC call.
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@ -256,6 +256,19 @@ func (ec *Client) SubscribeNewHead(ctx context.Context, ch chan<- *types.Header)
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// State Access
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// NetworkID returns the network ID (also known as the chain ID) for this chain.
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func (ec *Client) NetworkID(ctx context.Context) (*big.Int, error) {
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version := new(big.Int)
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var ver string
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if err := ec.c.CallContext(ctx, &ver, "net_version"); err != nil {
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return nil, err
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}
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if _, ok := version.SetString(ver, 10); !ok {
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return nil, fmt.Errorf("invalid net_version result %q", ver)
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}
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return version, nil
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}
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// BalanceAt returns the wei balance of the given account.
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// The block number can be nil, in which case the balance is taken from the latest known block.
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func (ec *Client) BalanceAt(ctx context.Context, account common.Address, blockNumber *big.Int) (*big.Int, error) {
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