Index Table

belong	api name	description
<graphenelib/action.h>	current_receiver	return current contract account ID
<graphenelib/action.h>	get_action_asset_id	get aseet ID of this call
<graphenelib/action.h>	get_action_asset_amount	get asset amount of this call
<graphenelib/asset.h>	withdraw_asset	withdraw current account asset to another account
<graphenelib/asset.h>	get_balance	get balance of some account
<graphenelib/crypto.h>	sha256	get data's sha256
<graphenelib/crypto.h>	sha512	get data's sha512
<graphenelib/crypto.h>	ripemd160	get data's ripemd160
<graphenelib/crypto.h>	verify_signature	verify signature
<graphenelib/global.h>	get_head_block_num	get latest block number
<graphenelib/global.h>	get_head_block_id	get latest block hash
<graphenelib/global.h>	get_head_block_time	get latest block time, unit is seconds
<graphenelib/global.h>	get_trx_sender	get caller account's instance_id
<graphenelib/global.h>	get_account_id	get account instance_id by account name
<graphenelib/global.h>	get_asset_id	get asset instance_id by asset name
<graphenelib/system.h>	graphene_assert
<graphenelib/system.h>	graphene_assert_message
<graphenelib/system.h>	print

uint64_t current_receiver()

include: <graphenelib/action.h>

desc: return current contract account ID

uint64_t get_action_asset_id()

include: <graphenelib/action.h>

desc: get aseet ID of this call

example1

#include <graphenelib/action.h>
#include <graphenelib/contract.hpp>
#include <graphenelib/dispatcher.hpp>
#include <graphenelib/types.h>

using namespace graphene;

class helloworld : public contract
{
public:
helloworld(uint64_t id) 
    : contract(id)
{   
}   

//@abi action
//@abi payable
void deposit()
{   
    uint64_t asset_id = get_action_asset_id();
}   
};

GRAPHENE_ABI(helloworld, (deposit))

test for desc 123

uint64_t get_action_asset_amount()

include: <graphenelib/action.h>

desc: get asset amount of this call

void withdraw_asset(uint64_t from, uint64_t to, uint64_t asset_id, int64_t amount)

include: <graphenelib/asset.h>

desc: withdraw current account asset to another account

params:

<uint64_t> from: transfer from which account, normally _self

<uint64_t> to:

<uint64_t> asset_id:

<int64_t> amount:

int64_t get_balance(int64_t account, int64_t asset_id)

include: <graphenelib/asset.h>

desc: get balance of some account

params:

<int64_t> account:

<int64_t> asset_id:

void sha256(char data, uint32_t length, const checksum256 * hash)

include: <graphenelib/crypto.h>

desc: get data's sha256

params:

<char> data:

<uint32_t> length:

<const checksum256 *> hash:

void sha512(char data, uint32_t length, const checksum512 * hash)

include: <graphenelib/crypto.h>

desc: get data's sha512

params:

<char> data:

<uint32_t> length:

<const checksum512 *> hash:

void ripemd160(char data, uint32_t length, const checksum160 * hash)

include: <graphenelib/crypto.h>

desc: get data's ripemd160

params:

<char> data:

<uint32_t> length:

<const checksum160 *> hash:

bool verify_signature(const char data, uint32_t datalen, signature sig, const char * pub_key, uint32_t pub_keylen)

include: <graphenelib/crypto.h>

desc: verify signature

params:

<const char> data:

<uint32_t> datalen:

<signature> sig:

<const char *> pub_key:

<uint32_t> pub_keylen: