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BaerChain Block Scan Code Example

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weidong edited this page Apr 16, 2020 · 1 revision

Scan block code example

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1. Scan block code example

2. Deserialization instruction description

3. Deserialization code example

1. Scan block code example Back Dir 

func postMsg(msg string, ip string) []byte {
	cli := &http.Client{
		Timeout: 200 * time.Second,
	}
	body := bytes.NewBuffer([]byte(msg))
	resq, err := http.NewRequest("POST", ip, body)
	if err != nil {
		fmt.Println("resq faild")
	}
	resq.Close = true

	rep, err := cli.Do(resq)
	if err != nil {
		fmt.Println("get response faild")
	}
	defer rep.Body.Close()
	rcv, err := ioutil.ReadAll(rep.Body)
	if err != nil {
		fmt.Println("get body faild")
	}

	return rcv
}

func main() {
	// curl -X POST --data '{"jsonrpc":"2.0","method":"brc_getBlockByNumber","params":["0xc", true],"id":1}' http://127.0.0.1:8111
	var msg string = `{"jsonrpc":"2.0","method":"brc_getBlockByNumber","params":["0x51", true],"id":1}`
	// ip is the address of the rpc interface
	ip := "http://127.0.0.1:8111"
	recv := postMsg(msg, ip)
	fmt.Println(string(recv))

	var jsonMap map[string]interface{}
	err := json.Unmarshal(recv, &jsonMap)
	if err != nil {
		fmt.Println("json unmarshal faild")
		return
	}

	jsonResult := jsonMap["result"].(map[string]interface{})
	jsonTx := jsonResult["transactions"].([]interface{})
	txCount := len(jsonTx)
	for i := 0; i < txCount; i++ {
		tx := jsonTx[i].(map[string]interface{})

		// to is empty to create a contract
		if tx["to"] == nil {
			fmt.Println("Create contract")
		} else if tx["to"] == "0x00000000000000000000000000000000766f7465" { // transaction in data
			fmt.Println("data transaction")
			// Currently calling the rpc interface to parse the input content
			// curl -d '{"jsonrpc":"2.0","method":"brc_getAnalysisData","params":["0xf864b1f00294e79fead329b69540142fabd881099c04424cc49f94042610e447c94ff0824b7aa89fab123930edc8050183010000b1f00294e79fead329b69540142fabd881099c04424cc49f94eee227766ba28fa6abc9ec8fea0c56188bbd54c50183010000"],"id":1}' http://127.0.0.1:8111
			var getAnalysisData string = `{"jsonrpc":"2.0","method":"brc_getAnalysisData","params":["` +
				tx["input"].(string) + `"],"id":1}`
			data := postMsg(getAnalysisData, ip)
			fmt.Println(string(data))

			var dataJsonMap map[string]interface{}
			err = json.Unmarshal(data, &dataJsonMap)
			if err != nil {
				fmt.Println("data json unmarshal is faild")
			}
			dataJsonResult := dataJsonMap["result"].([]interface{})
			dataSize := len(dataJsonResult)
			for i := 0; i < dataSize; i++ {
				ownTx := dataJsonResult[i].(map[string]interface{})
				// When type is 2, it means transfer transaction
				if ownTx["type"] == "0x2" {
					fmt.Println("No.", i, "batch transfer out account is:", ownTx["from"].(string))
					fmt.Println("No.", i, "batch transfer to the account is:", ownTx["to"].(string))
					fmt.Println("No", i, " batch transfer transaction amount is:", ownTx["transcation_numbers"].(string))

				} else if ownTx["type"] == "0x1" {
					fmt.Println("vote")

				} else if ownTx["type"] == "0x3" {
					fmt.Println("pendingorder")
					if ownTx["pendingorder_type"] == "0x1" {
						fmt.Println("sell")
					} else if ownTx["pendingorder_type"] == "0x2" {
						fmt.Println("buy")
					}
					if ownTx["token_type"] == "0x1" {
						fmt.Println("cookie")
					}
					if ownTx["buy_type"] == "0x0" {
						fmt.Println("market price")
					} else if ownTx["buy_type"] == "0x1" {
						fmt.Println("limit price")
					}

				} else if ownTx["type"] == "0x4" {
					fmt.Println("cancel pendingorder")

				} else if ownTx["type"] == "0x8" {
					fmt.Println("Receive income")
					if ownTx["m_receivingType"] == 1 {
						fmt.Println("Receiving the block income")
					} else if ownTx["m_receivingType"] == 2 {
						fmt.Println("Represents the receipt of matching system revenue")
					}

				} else if ownTx["type"] == "0x9" {
					fmt.Println("Automated cookie transfer")
					if ownTx["m_autoExType"] == 1 {
						fmt.Println("Indicates that the transaction initiating address specifies that you use BRC to exchange cookies, and the transaction fee is paid by yourself")
					} else if ownTx["m_autoExType"] == 2 {
						fmt.Println("Indicates that the transaction originating address specifies the transfer address to use BRC to exchange cookies, and the transaction fee is paid by the transfer address")
					}

					fmt.Println("The number of BRC used to redeem cookies is:", ownTx["autoExNum"].(string))
					fmt.Println("The amount of BRC transferred is:", ownTx["transferNum"].(string))
					fmt.Println("The address to initiate the transfer transaction is:", ownTx["from"].(string))
					fmt.Println("The address to accept the transfer is:", ownTx["to"].(string))
				}
			}
		} else {
			// When the input is not "", it is the calling contract
			if tx["input"] != "" {
				fmt.Println("Call contract")
			} else if tx["input"] == "" { // When input is "", it is a transfer transaction
				fmt.Println("The transfer-out account is:", tx["from"].(string))
				fmt.Println("Transfer to account:", tx["to"].(string))
				fmt.Println("The transaction amount is:", tx["value"].(string))
			}
		}
		fmt.Println()
	}
}

2. Deserialization instruction description Back Dir

  • Request
{"jsonrpc":"2.0","method":"brc_inspectTransaction","params":["Here is the transaction serialization data"],"id":17}

  • params parameter description:

    • If it is a pending order redemption cookie
    params := "0xf8840605830138809400000000000000000000000000000000766f746580a4e3a2e10394042610e447c94ff0824b7aa89fab123930edc80502018080865af3107a400026a0bbeaef47bc5933d17effc565717afe471b5b75adff9230c74ca160b1877f4a13a01de8ddaaf0fea32a6fecdbc18d9ea86f6fbbe7ee1b70a28b3d811444d379d313"
    • If it is to create a contract
    params := "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"
    • If it is a calling contract
    params := "0xf866040585013880000094181d14c82a827fc050be55852031d2ff94ab5e91808445653a6d25a07089091496e01e9074faaee4a04c5e62c20c1a9ad9d597cf4d15bf96d3704381a02708c6985340ddab9f781286043e60113dc074c3b427a7f9588db3a2c6dbf247"
    • If it is a regular transfer
    params := "0xf86580058301388094482e491c48d6f6138b181318faa191f71054d0b585174876e8008026a0d361983b972addec2bf2f48d00699c72a605308ec3516343561b8bc2b805de14a020717a07b4edf76d207f4e618ae4872b10997a5d3a00f0a806bdcb0b04ce286a"
    • If it is a batch transfer
    params := "0xf90100800584013880009400000000000000000000000000000000766f746580b89ef89cb3f202944d51ba213bad0f7ed97d336b2c00dc76576aac98940a96d44fc3b13c1157fe8648bd5ecca375d20af80185e8d4a51000b3f202944d51ba213bad0f7ed97d336b2c00dc76576aac9894695193772208fb21b8cae0096ddea871d74e82cb0185e8d4a51000b3f202944d51ba213bad0f7ed97d336b2c00dc76576aac989474ad8b5c9ef47a8cc01cb1cf7da7510b54e8318f0185e8d4a5100026a059b3df5536033ca7d4e68563b5248121533aee2e840a0859a782196233b01ee2a0522b0db1dac45f4e0219583b867585419983e99746be4a4afecab55ee7187c1e"

  • Instruction example

    • This time use batch transfer as a template
     curl -d '{"jsonrpc":"2.0","method":"brc_inspectTransaction","params":["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"],"id":17}' http://127.0.0.1:8111

  • Return result

{
    "id": 17,
    "jsonrpc": "2.0",
    "result": {
        "data": "0xf89cb3f202944d51ba213bad0f7ed97d336b2c00dc76576aac98940a96d44fc3b13c1157fe8648bd5ecca375d20af80185e8d4a51000b3f202944d51ba213bad0f7ed97d336b2c00dc76576aac9894695193772208fb21b8cae0096ddea871d74e82cb0185e8d4a51000b3f202944d51ba213bad0f7ed97d336b2c00dc76576aac989474ad8b5c9ef47a8cc01cb1cf7da7510b54e8318f0185e8d4a51000",
        "from": "0x4d51ba213bad0f7ed97d336b2c00dc76576aac98",
        "gas": "0x1388000",
        "gasPrice": "0x5",
        "hash": "0x874b5ad48085b3585e740f40c389a82e497a5d44ccd316de33c06aec4a9c7192",
        "nonce": "0x0",
        "r": "0x59b3df5536033ca7d4e68563b5248121533aee2e840a0859a782196233b01ee2",
        "s": "0x522b0db1dac45f4e0219583b867585419983e99746be4a4afecab55ee7187c1e",
        "sighash": "0x3f01c09b9142117dad06657f6a7357016184ee840c0c97f0389c11225ad0d350",
        "to": "0x00000000000000000000000000000000766f7465",
        "v": "0x1",
        "value": "0x0"
    }
}

3. Deserialization code example Back Dir 

package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
	"time"
)

func postMsg(msg string, ip string) []byte {
	cli := &http.Client{
		Timeout: 200 * time.Second,
	}
	body := bytes.NewBuffer([]byte(msg))
	resq, err := http.NewRequest("POST", ip, body)
	if err != nil {
		fmt.Println("resq faild")
	}
	resq.Close = true

	rep, err := cli.Do(resq)
	if err != nil {
		fmt.Println("get response faild")
	}
	defer rep.Body.Close()
	rcv, err := ioutil.ReadAll(rep.Body)
	if err != nil {
		fmt.Println("get body faild")
	}

	return rcv
}



func main() {
    ip := "http://127.0.0.1:8111"
	params := "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"

	var inspectMsg string = `{"jsonrpc":"2.0","method":"brc_inspectTransaction","params":["` + params + `"],"id":1}`
	recv = postMsg(inspectMsg, ip)
	fmt.Println(string(recv))
	var iptJsonMap map[string]interface{}
	err = json.Unmarshal(recv, &iptJsonMap)
	if err != nil {
		fmt.Println("inspect json unmarshal is faild")
	}
	iptResultMap := iptJsonMap["result"].(map[string]interface{})

	if iptResultMap["to"] == nil {
		fmt.Println("Create contract")
	} else if iptResultMap["to"] == "0x00000000000000000000000000000000766f7465" {
		// Temporarily call the rpc interface to parse the input content
		// curl -d '{"jsonrpc":"2.0","method":"brc_getAnalysisData","params":["0xf864b1f00294e79fead329b69540142fabd881099c04424cc49f94042610e447c94ff0824b7aa89fab123930edc8050183010000b1f00294e79fead329b69540142fabd881099c04424cc49f94eee227766ba28fa6abc9ec8fea0c56188bbd54c50183010000"],"id":1}' http://127.0.0.1:8111
		var getAnalysisData string = `{"jsonrpc":"2.0","method":"brc_getAnalysisData","params":["` +
			iptResultMap["data"].(string) + `"],"id":1}`
		data := postMsg(getAnalysisData, ip)
		fmt.Println(string(data))

		var dataJsonMap map[string]interface{}
		err = json.Unmarshal(data, &dataJsonMap)
		if err != nil {
			fmt.Println("data json unmarshal is faild")
		}
		dataJsonResult := dataJsonMap["result"].([]interface{})
		dataSize := len(dataJsonResult)
		for i := 0; i < dataSize; i++ {
			ownTx := dataJsonResult[i].(map[string]interface{})
			// When type is 2, it means transfer transaction
			if ownTx["type"] == "0x2" {
					fmt.Println("No.", i, "batch transfer out account is:", ownTx["from"].(string))
					fmt.Println("No.", i, "batch transfer to the account is:", ownTx["to"].(string))
                    fmt.Println("No", i, " batch transfer transaction amount is:", ownTx["transcation_numbers"].(string))
            }
		}
	} else {
        // When the input is not "", it is the calling contract
    	if iptResultMap["input"] != "" {
    		fmt.Println("Call contract")
    	} else { // When input is "", it is the original transfer transaction
    		fmt.Println("The transfer-out account is:", iptResultMap["from"].(string))
    		fmt.Println("Accounts that accept transfers is", iptResultMap["to"].(string))
    		fmt.Println("transfer amount is:", iptResultMap["value"].(string))
    	}
	}
}

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