#include <in3/client.h> // the core client

#include <in3/eth_api.h> // functions for direct api-access

#include <in3/in3_init.h> // if included the verifier will automaticly be initialized.

#include <in3/log.h> // logging functions

#include <in3/plugin.h> // the plugin api

#include <in3/signer.h> // default signer implementation

#include <in3/utils.h>

#include <stdio.h>

#define ETH_PRIVATE_KEY "0x8da4ef21b864d2cc526dbdb2a120bd2874c36c9d0a1fb7f8c63d7f7a8b41de8f"

static void send_tx_rpc(in3_t* in3);

static void send_tx_api(in3_t* in3);

int main() {

// create new incubed client

in3_t* in3 = in3_for_chain(CHAIN_ID_MAINNET);

// convert the hexstring to bytes

bytes32_t pk;

hex_to_bytes(ETH_PRIVATE_KEY, -1, pk, 32);

// create a simple signer with this key

eth_set_pk_signer(in3, pk, SIGNER_ECDSA);

// send tx using raw RPC call

send_tx_rpc(in3);

// send tx using API

send_tx_api(in3);

// cleanup client after usage

in3_free(in3);

}

void send_tx_rpc(in3_t* in3) {

// prepare 2 pointers for the result.

char *result, *error;

// send raw rpc-request, which is then verified

in3_ret_t res = in3_client_rpc(

in3, // the configured client

"eth_sendRawTransaction", // the rpc-method you want to call.

"[\"0xf892808609184e72a0008296c094d46e8dd67c5d32be8058bb8eb970870f0724456"

"7849184e72aa9d46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb9"

"70870f07244567526a06f0103fccdcae0d6b265f8c38ee42f4a722c1cb36230fe8da40315acc3051"

"9a8a06252a68b26a5575f76a65ac08a7f684bc37b0c98d9e715d73ddce696b58f2c72\"]", // the signed raw txn, same as the one used in the API example

&result, // the reference to a pointer which will hold the result

&error); // the pointer which may hold a error message

// check and print the result or error

if (res == IN3_OK) {

printf("Result: \n%s\n", result);

free(result);

}

else {

printf("Error sending tx: \n%s\n", error);

free(error);

}

}

void send_tx_api(in3_t* in3) {

// prepare parameters

address_t to, from;

hex_to_bytes("0x63FaC9201494f0bd17B9892B9fae4d52fe3BD377", -1, from, 20);

hex_to_bytes("0xd46e8dd67c5d32be8058bb8eb970870f07244567", -1, to, 20);

bytes_t* data = hex_to_new_bytes("d46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675", 82);

// send the tx

bytes_t* tx_hash = eth_sendTransaction(in3, from, to, OPTIONAL_T_VALUE(uint64_t, 0x96c0), OPTIONAL_T_VALUE(uint64_t, 0x9184e72a000), OPTIONAL_T_VALUE(uint256_t, to_uint256(0x9184e72a)), OPTIONAL_T_VALUE(bytes_t, *data), OPTIONAL_T_UNDEFINED(uint64_t));

// if the result is null there was an error and we can get the latest error message from eth_last_error()

if (!tx_hash)

printf("error sending the tx : %s\n", eth_last_error());

else {

printf("Transaction hash: ");

b_print(tx_hash);

b_free(tx_hash);

}

b_free(data);

}