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mvc-assets-indexer

The index service for P2PKH and MetaContract Fungible Token (FT) assets on MicroVisionChain.

It is an open-sourced data service that everyone can run and deploy. There are several basic APIs of this indexer:

  • broadcast transaction
  • query P2PKH UTXO and balance by an address
  • query FT UTXO and balance by an address

With this service, developers can build their own apps associated with assets on MicroVisionChain, sending and receiving them, etc.

You can run your own service, or use our public deployments of this indexer directly.

We have also built a CLI wallet that can work with this indexer, helping you send and receive SPACE and Tokens.

Deployment

Installation

npm install

Running the app

# development
npm run start

# watch mode
npm run start:dev

# production mode
npm run start:prod

Benchmark

Database

  • Operating System: Ubuntu 20.04
  • CPU: 2 cores
  • RAM: 8GB;
  • MySQL version: 8.0.22
  • mysql cnf
# Default Homebrew MySQL server config
[mysqld]
# Only allow connections from localhost
bind-address = 127.0.0.1
mysqlx-bind-address = 127.0.0.1
innodb_buffer_pool_instances = 4
innodb_buffer_pool_size = 4G
innodb_buffer_pool_chunk_size = 1G
innodb_read_io_threads = 8
innodb_parallel_read_threads = 16
innodb_write_io_threads = 8

Server

  • Operating System: Ubuntu 20.04
  • CPU: 2 cores
  • RAM: 8GB;
  • NODE_OPTIONS="--max-old-space-size=4096"

Performance

Tx numbers Block numbers Block per tx Index time (s) Tps
6242999 68397 91.3 26028 239.86

Changelog

v1.4.9 (2024-04-22)

v1.4.8 (2024-02-27)

  • Added
    • block sync progress log
    • indexer ready progress log
  • Changed
    • optimize block sync logic, 59476 block sync time is about 5 hours.
    • optimize database table index, 80% reduction in database pressure.