82 lines
2.7 KiB
Go
82 lines
2.7 KiB
Go
// Copyright (c) 2017-2026 Lethean (https://lt.hn)
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//
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// Licensed under the European Union Public Licence (EUPL) version 1.2.
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// SPDX-License-Identifier: EUPL-1.2
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package rpc
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import (
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"dappco.re/go/core"
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coreerr "dappco.re/go/core/log"
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)
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// GetLastBlockHeader returns the header of the most recent block.
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func (c *Client) GetLastBlockHeader() (*BlockHeader, error) {
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var resp struct {
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BlockHeader BlockHeader `json:"block_header"`
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Status string `json:"status"`
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}
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if err := c.call("getlastblockheader", struct{}{}, &resp); err != nil {
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return nil, err
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}
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if resp.Status != "OK" {
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return nil, coreerr.E("Client.GetLastBlockHeader", core.Sprintf("getlastblockheader: status %q", resp.Status), nil)
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}
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return &resp.BlockHeader, nil
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}
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// GetBlockHeaderByHeight returns the block header at the given height.
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func (c *Client) GetBlockHeaderByHeight(height uint64) (*BlockHeader, error) {
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params := struct {
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Height uint64 `json:"height"`
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}{Height: height}
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var resp struct {
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BlockHeader BlockHeader `json:"block_header"`
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Status string `json:"status"`
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}
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if err := c.call("getblockheaderbyheight", params, &resp); err != nil {
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return nil, err
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}
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if resp.Status != "OK" {
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return nil, coreerr.E("Client.GetBlockHeaderByHeight", core.Sprintf("getblockheaderbyheight: status %q", resp.Status), nil)
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}
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return &resp.BlockHeader, nil
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}
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// GetBlockHeaderByHash returns the block header with the given hash.
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func (c *Client) GetBlockHeaderByHash(hash string) (*BlockHeader, error) {
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params := struct {
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Hash string `json:"hash"`
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}{Hash: hash}
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var resp struct {
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BlockHeader BlockHeader `json:"block_header"`
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Status string `json:"status"`
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}
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if err := c.call("getblockheaderbyhash", params, &resp); err != nil {
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return nil, err
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}
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if resp.Status != "OK" {
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return nil, coreerr.E("Client.GetBlockHeaderByHash", core.Sprintf("getblockheaderbyhash: status %q", resp.Status), nil)
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}
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return &resp.BlockHeader, nil
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}
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// GetBlocksDetails returns full block details starting at the given height.
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func (c *Client) GetBlocksDetails(heightStart, count uint64) ([]BlockDetails, error) {
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params := struct {
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HeightStart uint64 `json:"height_start"`
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Count uint64 `json:"count"`
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IgnoreTransactions bool `json:"ignore_transactions"`
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}{HeightStart: heightStart, Count: count}
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var resp struct {
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Blocks []BlockDetails `json:"blocks"`
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Status string `json:"status"`
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}
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if err := c.call("get_blocks_details", params, &resp); err != nil {
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return nil, err
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}
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if resp.Status != "OK" {
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return nil, coreerr.E("Client.GetBlocksDetails", core.Sprintf("get_blocks_details: status %q", resp.Status), nil)
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}
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return resp.Blocks, nil
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}
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