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API endpoint for reading random numbers from the witness

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Test cmd:
curl --data '{"method": "call", "params": ["database", "get_random_number", [1000]], "jsonrpc": "2.0", "id": 1}' http://127.0.0.1:8090/ws
curl --data '{"method": "call", "params": ["database", "get_random_number", [5000]], "jsonrpc": "2.0", "id": 1}' http://127.0.0.1:8090/ws
curl --data '{"method": "call", "params": ["database", "get_random_number", [1000000]], "jsonrpc": "2.0", "id": 1}' http://127.0.0.1:8090/ws
This commit is contained in:
Srdjan Obucina 2019-08-19 19:55:26 +02:00
parent 38f560f861
commit 654e998d89
2 changed files with 21 additions and 0 deletions
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11
libraries/app/database_api.cpp
View file

@ -163,6 +163,7 @@ class database_api_impl : public std::enable_shared_from_this<database_api_impl>
// gpos
gpos_info get_gpos_info(const account_id_type account) const;
int64_t get_random_number(uint64_t bound) const;
//private:
template<typename T>
@ -2072,6 +2073,16 @@ graphene::app::gpos_info database_api_impl::get_gpos_info(const account_id_type
return result;
}
int64_t database_api::get_random_number(uint64_t bound) const
{
return my->get_random_number(bound);
}
int64_t database_api_impl::get_random_number(uint64_t bound) const {
int64_t result = _db.get_random_bits(bound);
return result;
}
//////////////////////////////////////////////////////////////////////
// //
// Private methods //

10
libraries/app/include/graphene/app/database_api.hpp
View file

@ -659,6 +659,13 @@ class database_api
*/
gpos_info get_gpos_info(const account_id_type account) const;
//////////
// RNG //
//////////
/**
* @return Current Random number
*/
int64_t get_random_number(uint64_t bound) const;
private:
@ -786,4 +793,7 @@ FC_API(graphene::app::database_api,
// gpos
(get_gpos_info)
// rngs
(get_random_number)
)