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Merge pull request #58 from moneroexamples/json_mempool_add_limit

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Some new json api added
This commit is contained in:
moneroexamples 2017-05-12 13:39:27 +08:00 committed by GitHub
commit a6c530bffc
5 changed files with 517 additions and 43 deletions
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98
README.md
View file

@ -380,9 +380,9 @@ Partial results shown:
}
```
#### api/mempool
Return all txs in the mempool.
```bash
curl -w "\n" -X GET "http://139.162.32.245:8081/api/mempool"
@ -392,28 +392,47 @@ Partial results shown:
```json
{
"data": [
"data": {
"limit": 100000000,
"page": 0,
"total_page_no": 0,
"txs": [
{
"coinbase": false,
"extra": "02210001c32d313b74a859b904079c69dbc04ea6e37eddcf4aeb34e9400cc12831da5401b34082a9ff7476fe29a19fa6a1735a9c59db226b9ddcf715928aa71625b13062",
"mixin": 7,
"payment_id": "01c32d313b74a859b904079c69dbc04ea6e37eddcf4aeb34e9400cc12831da54",
"extra": "022100325f677d96f94155a4840a84d8e0c905f7a4697a25744633bcb438feb1e51fb2012eda81bf552c53c2168f4130dbe0265c3a7898f3a7eee7c1fed955a778167b5d",
"mixin": 3,
"payment_id": "325f677d96f94155a4840a84d8e0c905f7a4697a25744633bcb438feb1e51fb2",
"payment_id8": "",
"rct_type": 1,
"timestamp": 1492763220,
"timestamp_utc": "2017-04-21 08:27:00",
"tx_fee": 4083040000,
"tx_hash": "6751e0029558fdc4ab4528896529e32b2864c6ad43c5d8838c8ebe156ada0514",
"tx_size": 13224,
"rct_type": 2,
"timestamp": 1494470894,
"timestamp_utc": "2017-05-11 02:48:14",
"tx_fee": 15894840000,
"tx_hash": "9f3374f8ac67febaab153eab297937a3d0d2c706601e496bf5028146da0c9aef",
"tx_size": 13291,
"tx_version": 2,
"xmr_inputs": 0,
"xmr_outputs": 0
}
],
"txs_no": 7
},
"status": "success"
}
```
Limit of 100000000 is just default value above to ensure that all mempool txs are fetched
if no specific limit given.
#### api/mempool?limit=<no_of_top_txs>
Return number of newest mempool txs, e.g., only 10.
```bash
curl -w "\n" -X GET "http://139.162.32.245:8081/api/mempool?limit=10"
```
Result analogical to the one above.
#### api/search/<block_number|tx_hash|block_hash>
```bash
@ -453,6 +472,7 @@ Partial results shown:
}
```
#### api/outputs?txhash=<tx_hash>&address=<address>&viewkey=<viewkey>&txprove=<0|1>
For `txprove=0` we check which outputs belong to given address and corresponding viewkey.
@ -529,6 +549,62 @@ curl -w "\n" -X GET "http://139.162.32.245:8082/api/outputs?txhash=94782a8c0aa8
}
```
Result analogical to the one above.
#### api/networkinfo
```bash
curl -w "\n" -X GET "http://139.162.32.245:8081/api/networkinfo"
```
```json
{
"data": {
"alt_blocks_count": 0,
"block_size_limit": 600000,
"cumulative_difficulty": 2067724366624367,
"difficulty": 7530486740,
"grey_peerlist_size": 4987,
"hash_rate": 62754056,
"height": 1307537,
"incoming_connections_count": 0,
"outgoing_connections_count": 8,
"start_time": 1494473774,
"status": "OK",
"target": 120,
"target_height": 1307518,
"testnet": false,
"top_block_hash": "0726de5b86f431547fc64fc2c8e1c11d76843ada0561993ee540e4eee29d83c3",
"tx_count": 1210222,
"tx_pool_size": 5,
"white_peerlist_size": 1000
},
"status": "success"
}
```
#### api/rawblock/<block_number|block_hash>
Return raw json block data, as represented in Monero.
```bash
curl -w "\n" -X GET "http://139.162.32.245:8081/api/rawblock/1293257"
```
Example result not shown.
#### api/rawtransaction/<tx_hash>
Return raw json tx data, as represented in Monero.
```bash
curl -w "\n" -X GET "http://139.162.32.245:8081/api/rawtransaction/6093260dbe79fd6277694d14789dc8718f1bd54457df8bab338c2efa3bb0f03d"
```
Example result not shown.
## Other monero examples
Other examples can be found on [github](https://github.com/moneroexamples?tab=repositories).

36
main.cpp
View file

@ -363,6 +363,14 @@ int main(int ac, const char* av[]) {
return r;
});
CROW_ROUTE(app, "/api/rawtransaction/<string>")
([&](const crow::request &req, string tx_hash) {
myxmr::jsonresponse r{xmrblocks.json_rawtransaction(tx_hash)};
return r;
});
CROW_ROUTE(app, "/api/block/<string>")
([&](const crow::request &req, string block_no_or_hash) {
@ -371,6 +379,13 @@ int main(int ac, const char* av[]) {
return r;
});
CROW_ROUTE(app, "/api/rawblock/<string>")
([&](const crow::request &req, string block_no_or_hash) {
myxmr::jsonresponse r{xmrblocks.json_rawblock(block_no_or_hash)};
return r;
});
CROW_ROUTE(app, "/api/transactions").methods("GET"_method)
([&](const crow::request &req) {
@ -386,10 +401,19 @@ int main(int ac, const char* av[]) {
return r;
});
CROW_ROUTE(app, "/api/mempool")
CROW_ROUTE(app, "/api/mempool").methods("GET"_method)
([&](const crow::request &req) {
myxmr::jsonresponse r{xmrblocks.json_mempool()};
string page = regex_search(req.raw_url, regex {"page=\\d+"}) ?
req.url_params.get("page") : "0";
// default value for limit is some large number, so that
// a call to api/mempool without any limit return all
// mempool txs
string limit = regex_search(req.raw_url, regex {"limit=\\d+"}) ?
req.url_params.get("limit") : "100000000";
myxmr::jsonresponse r{xmrblocks.json_mempool(page, limit)};
return r;
});
@ -402,6 +426,14 @@ int main(int ac, const char* av[]) {
return r;
});
CROW_ROUTE(app, "/api/networkinfo")
([&](const crow::request &req) {
myxmr::jsonresponse r{xmrblocks.json_networkinfo()};
return r;
});
CROW_ROUTE(app, "/api/outputs").methods("GET"_method)
([&](const crow::request &req) {

324
src/page.h
View file

@ -3834,6 +3834,91 @@ namespace xmreg
return j_response;
}
/*
* Lets use this json api convention for success and error
* https://labs.omniti.com/labs/jsend
*/
json
json_rawtransaction(string tx_hash_str)
{
json j_response {
{"status", "fail"},
{"data" , json {}}
};
json& j_data = j_response["data"];
// parse tx hash string to hash object
crypto::hash tx_hash;
if (!xmreg::parse_str_secret_key(tx_hash_str, tx_hash))
{
j_data["title"] = fmt::format("Cant parse tx hash: {:s}", tx_hash_str);
return j_response;
}
// get transaction
transaction tx;
// flag to indicate if tx is in mempool
bool found_in_mempool {false};
// for tx in blocks we get block timestamp
// for tx in mempool we get recievive time
uint64_t tx_timestamp {0};
if (!find_tx(tx_hash, tx, found_in_mempool, tx_timestamp))
{
j_data["title"] = fmt::format("Cant find tx hash: {:s}", tx_hash_str);
return j_response;
}
if (found_in_mempool == false)
{
block blk;
try
{
// get block cointaining this tx
uint64_t block_height = core_storage->get_db().get_tx_block_height(tx_hash);
if (!mcore->get_block_by_height(block_height, blk))
{
j_data["title"] = fmt::format("Cant get block: {:d}", block_height);
return j_response;
}
}
catch (const exception& e)
{
j_response["status"] = "error";
j_response["message"] = fmt::format("Tx does not exist in blockchain, "
"but was there before: {:s}",
tx_hash_str);
return j_response;
}
}
// get raw tx json as in monero
try
{
j_data = json::parse(obj_to_json_str(tx));
}
catch (std::invalid_argument& e)
{
j_response["status"] = "error";
j_response["message"] = "Faild parsing raw tx data into json";
return j_response;
}
j_response["status"] = "success";
return j_response;
}
/*
* Lets use this json api convention for success and error
* https://labs.omniti.com/labs/jsend
@ -3977,6 +4062,102 @@ namespace xmreg
/*
* Lets use this json api convention for success and error
* https://labs.omniti.com/labs/jsend
*/
json
json_rawblock(string block_no_or_hash)
{
json j_response {
{"status", "fail"},
{"data" , json {}}
};
json& j_data = j_response["data"];
uint64_t current_blockchain_height
= core_storage->get_current_blockchain_height();
uint64_t block_height {0};
crypto::hash blk_hash;
block blk;
if (block_no_or_hash.length() <= 8)
{
// we have something that seems to be a block number
try
{
block_height = boost::lexical_cast<uint64_t>(block_no_or_hash);
}
catch (const boost::bad_lexical_cast& e)
{
j_data["title"] = fmt::format(
"Cant parse block number: {:s}", block_no_or_hash);
return j_response;
}
if (block_height > current_blockchain_height)
{
j_data["title"] = fmt::format(
"Requested block is higher than blockchain:"
" {:d}, {:d}", block_height,current_blockchain_height);
return j_response;
}
if (!mcore->get_block_by_height(block_height, blk))
{
j_data["title"] = fmt::format("Cant get block: {:d}", block_height);
return j_response;
}
blk_hash = core_storage->get_block_id_by_height(block_height);
}
else if (block_no_or_hash.length() == 64)
{
// this seems to be block hash
if (!xmreg::parse_str_secret_key(block_no_or_hash, blk_hash))
{
j_data["title"] = fmt::format("Cant parse blk hash: {:s}", block_no_or_hash);
return j_response;
}
if (!core_storage->get_block_by_hash(blk_hash, blk))
{
j_data["title"] = fmt::format("Cant get block: {:s}", blk_hash);
return j_response;
}
block_height = core_storage->get_db().get_block_height(blk_hash);
}
else
{
j_data["title"] = fmt::format("Cant find blk using search string: {:s}", block_no_or_hash);
return j_response;
}
// get raw tx json as in monero
try
{
j_data = json::parse(obj_to_json_str(blk));
}
catch (std::invalid_argument& e)
{
j_response["status"] = "error";
j_response["message"] = "Faild parsing raw blk data into json";
return j_response;
}
j_response["status"] = "success";
return j_response;
}
/*
* Lets use this json api convention for success and error
* https://labs.omniti.com/labs/jsend
@ -4092,7 +4273,8 @@ namespace xmreg
j_data["page"] = page;
j_data["limit"] = limit;
j_data["current_height"] = height;
j_data["total_page_no"] = (limit == 0 ? 0 : height / limit);
j_data["total_page_no"] = limit > 0 ? (height / limit) : 0;
j_response["status"] = "success";
@ -4105,7 +4287,7 @@ namespace xmreg
* https://labs.omniti.com/labs/jsend
*/
json
json_mempool()
json_mempool(string _page, string _limit)
{
json j_response {
{"status", "fail"},
@ -4114,6 +4296,23 @@ namespace xmreg
json& j_data = j_response["data"];
// parse page and limit into numbers
uint64_t page {0};
uint64_t limit {0};
try
{
page = boost::lexical_cast<uint64_t>(_page);
limit = boost::lexical_cast<uint64_t>(_limit);
}
catch (const boost::bad_lexical_cast& e)
{
j_data["title"] = fmt::format(
"Cant parse page and/or limit numbers: {:s}, {:s}", _page, _limit);
return j_response;
}
//get current server timestamp
server_timestamp = std::time(nullptr);
@ -4135,21 +4334,62 @@ namespace xmreg
(void) tx_hash_dummy;
// for each transaction in the memory pool
for (const auto& a_pair: mempool_data)
uint64_t no_mempool_txs = mempool_data.size();
// calculate starting and ending block numbers to show
int64_t start_height = limit * page;
int64_t end_height = start_height + limit;
end_height = end_height > no_mempool_txs ? no_mempool_txs : end_height;
// check if start height is not below range
start_height = start_height > end_height ? end_height - limit : start_height;
start_height = start_height < 0 ? 0 : start_height;
// loop index
int64_t i = start_height;
json j_txs = json::array();
// for each transaction in the memory pool in current page
while (i < end_height)
{
const tx_details& txd = get_tx_details(a_pair.second, false, 1, height); // 1 is dummy here
const pair<tx_info, transaction>* a_pair {nullptr};
try
{
a_pair = &(mempool_data.at(i));
}
catch (const std::out_of_range& e)
{
j_response["status"] = "error";
j_response["message"] = fmt::format("Getting mempool txs failed due to std::out_of_range");
return j_response;
}
const tx_details& txd = get_tx_details(a_pair->second, false, 1, height); // 1 is dummy here
// get basic tx info
json j_tx = get_tx_json(a_pair.second, txd);
json j_tx = get_tx_json(a_pair->second, txd);
// we add some extra data, for mempool txs, such as recieve timestamp
j_tx["timestamp"] = a_pair.first.receive_time;
j_tx["timestamp_utc"] = xmreg::timestamp_to_str_gm(a_pair.first.receive_time);
j_tx["timestamp"] = a_pair->first.receive_time;
j_tx["timestamp_utc"] = xmreg::timestamp_to_str_gm(a_pair->first.receive_time);
j_data.push_back(j_tx);
j_txs.push_back(j_tx);
++i;
}
j_data["txs"] = j_txs;
j_data["page"] = page;
j_data["limit"] = limit;
j_data["txs_no"] = no_mempool_txs;
j_data["total_page_no"] = limit > 0 ? (no_mempool_txs / limit) : 0;
j_response["status"] = "success";
return j_response;
@ -4420,6 +4660,38 @@ namespace xmreg
return j_response;
}
/*
* Lets use this json api convention for success and error
* https://labs.omniti.com/labs/jsend
*/
json
json_networkinfo()
{
json j_response {
{"status", "fail"},
{"data", json {}}
};
json& j_data = j_response["data"];
json j_info;
if (!get_monero_network_info(j_info))
{
j_response["status"] = "error";
j_response["message"] = "Cant get monero network info";
return j_response;
}
j_data = j_info;
j_response["status"] = "success";
return j_response;
}
private:
json
@ -5192,6 +5464,40 @@ namespace xmreg
+ template_file["footer"];
}
bool
get_monero_network_info(json& j_info)
{
COMMAND_RPC_GET_INFO::response network_info;
if (!rpc.get_network_info(network_info))
{
return false;
}
j_info = json {
{"status" , network_info.status},
{"height" , network_info.height},
{"target_height" , network_info.target_height},
{"difficulty" , network_info.difficulty},
{"target" , network_info.target},
{"hash_rate" , (network_info.difficulty/network_info.target)},
{"tx_count" , network_info.tx_count},
{"tx_pool_size" , network_info.tx_pool_size},
{"alt_blocks_count" , network_info.alt_blocks_count},
{"outgoing_connections_count", network_info.outgoing_connections_count},
{"incoming_connections_count", network_info.incoming_connections_count},
{"white_peerlist_size" , network_info.white_peerlist_size},
{"grey_peerlist_size" , network_info.grey_peerlist_size},
{"testnet" , network_info.testnet},
{"top_block_hash" , network_info.top_block_hash},
{"cumulative_difficulty" , network_info.cumulative_difficulty},
{"block_size_limit" , network_info.block_size_limit},
{"start_time" , network_info.start_time}
};
return true;
}
string
get_footer()
{

58
src/rpccalls.cpp
View file

@ -147,6 +147,64 @@ rpccalls::commit_tx(tools::wallet2::pending_tx& ptx, string& error_msg)
return true;
}
bool
rpccalls::get_network_info(COMMAND_RPC_GET_INFO::response& response)
{
epee::json_rpc::request<cryptonote::COMMAND_RPC_GET_INFO::request> req_t = AUTO_VAL_INIT(req_t);
epee::json_rpc::response<cryptonote::COMMAND_RPC_GET_INFO::response, std::string> resp_t = AUTO_VAL_INIT(resp_t);
bool r {false};
req_t.jsonrpc = "2.0";
req_t.id = epee::serialization::storage_entry(0);
req_t.method = "get_info";
{
std::lock_guard<std::mutex> guard(m_daemon_rpc_mutex);
if (!connect_to_monero_deamon())
{
cerr << "get_mempool: not connected to deamon" << endl;
return false;
}
r = epee::net_utils::invoke_http_json("/json_rpc",
req_t, resp_t,
m_http_client);
}
string err;
if (r)
{
if (resp_t.result.status == CORE_RPC_STATUS_BUSY)
{
err = "daemon is busy. Please try again later.";
}
else if (resp_t.result.status != CORE_RPC_STATUS_OK)
{
err = resp_t.result.status;
}
if (!err.empty())
{
cerr << "Error connecting to Monero deamon due to "
<< err << endl;
return false;
}
}
else
{
cerr << "Error connecting to Monero deamon at "
<< deamon_url << endl;
return false;
}
response = resp_t.result;
return true;
}
}

4
src/rpccalls.h
View file

@ -46,10 +46,12 @@ public:
bool
get_mempool(vector<tx_info>& mempool_txs);
bool
commit_tx(tools::wallet2::pending_tx& ptx, string& error_msg);
bool
get_network_info(COMMAND_RPC_GET_INFO::response& info);
};