Data processing method and apparatus based on blockchain network, electronic device, and storage medium

A data processing apparatus including a first data manager and a second data manager both connected to a blockchain network, the first data manager and the second data manager each comprising:

• a memory;
• and a processor coupled to the memory, the processor being positioned to perform:
• obtaining, by the second data manager, from a target node a transaction request for off-chain data;
• parsing, by the second data manager, the transaction request to obtain a transaction parameter and a chain height parameter of the target node, the target node being a smart phone, a smart pad, a laptop computer, or a desktop computer;
• querying, by the second data manager, according to the chain height parameter of the target node, for the off-chain data;
• in response to determining the off-chain data is present in the second data manager, sending, by the second data manager, the off-chain data to the target node;
• and
• in response to determining the off-chain data is absent in the second data manager, determining, by the second data manager, a type of the target node according to the transaction parameter, sending, by the second data manager, a data request for the off-chain data to the first data manger, the data request including the type of the target node according to the transaction parameter;
• obtaining, by the first data manager, the off-chain data from a data source according to the type of the target node as determined and according to the data request from the second data manager;
• sending, by the first data manager, the off-chain data to the first data manager;
• and
• receiving, by the second data manger, the off-chain data from the first data manager;
• and sending, by the second data manager, the off-chain data to the target node.

A non-transitory computer-readable storage medium storing computer program instructions executable by at least one processor to perform a method via an interplay between a first data manager and a second data manager both connected to a blockchain network, the first data manager and the second data manager each including a hardware processor, and the method including:

• obtaining, by the second data manager, from a target node a transaction request for off-chain data, the target node being a smart phone, a smart pad, a laptop computer, or a desktop computer;
• parsing, by the second data manager, the transaction request to obtain a transaction parameter and a chain height parameter of the target node;
• querying, by the second data manager, according to the chain height parameter of the target node, for the off-chain data;
• in response to determining the off-chain data is present in the second data manager, sending, by the second data manager, the off-chain data to the target node;
• and
• in response to determining the off-chain data is absent in the second data manager, determining a type of the target node according to the transaction parameter, sending, by the second data manager, a data request for the off-chain data to the first data manger, the data request including the type of the target node according to the transaction parameter;
• obtaining, by the first data manager, the off-chain data from a data source according to the type of the target node as determined and according to the data request from the second data manager;
• sending, by the first data manager, the off-chain data to the first data manager;
• and
• receiving, by the second data manger, the off-chain data from the first data manager;
• and sending, by the second data manager, the off-chain data to the target node.