Basic implementation

The following is an overview of an example smart contract that uses vRAM
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#pragma once
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​
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#include "../dappservices/ipfs.hpp"
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#include "../dappservices/multi_index.hpp"
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​
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#define DAPPSERVICES_ACTIONS() \
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  XSIGNAL_DAPPSERVICE_ACTION \
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  IPFS_DAPPSERVICE_ACTIONS
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​
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/*** IPFS: (xcommit)(xcleanup)(xwarmup) ***/
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#define DAPPSERVICE_ACTIONS_COMMANDS() \
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  IPFS_SVC_COMMANDS() 
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​
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/*** UPDATE CONTRACT NAME ***/
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#define CONTRACT_NAME() mycontract
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​
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using std::string;
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​
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CONTRACT_START()
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  public:
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​
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  /*** YOUR LOGIC ***/
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​
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  private:
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    struct [[eosio::table]] vramaccounts {
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      asset    balance;
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      uint64_t primary_key()const { return balance.symbol.code().raw(); }
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    };
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​
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    /*** VRAM MULTI_INDEX TABLE ***/
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    typedef dapp::multi_index<"vaccounts"_n, vramaccounts> cold_accounts_t;
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​
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    /*** FOR CLIENT SIDE QUERY SUPPORT ***/
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    typedef eosio::multi_index<".vaccounts"_n, vramaccounts> cold_accounts_t_v_abi;
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    TABLE shardbucket {
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      std::vector<char> shard_uri;
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      uint64_t shard;
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      uint64_t primary_key() const { return shard; }
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    };
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    typedef eosio::multi_index<"vaccounts"_n, shardbucket> cold_accounts_t_abi;
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​
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/*** ADD ACTIONS ***/
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CONTRACT_END((your)(actions)(here))
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Smart Contract Macros

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