LiquidApps Documentation
  • Introduction
  • 🧙‍♂️The DAPP Network
    • The DAPP Token
      • DAPP Token Overview
      • DAPP Tokens Tracks
      • Claiming DAPP Tokens
      • DAPP Tokens Distribution
      • Air-HODL
    • Cross Chain Bridges
    • Examples
      • Token bridge
      • Price Feed
      • Elemental Battles
      • LiquidChess
      • LiquidPortfolio
    • DAPP Network Resources
      • @liquidapps/dapp-client
        • vRAM
        • LiquidAccounts
        • DAPP Services
        • Air-Hodl
      • eosio-push-guarantee
      • Link Library
        • EOSIO Link
          • Tables
          • Crons
          • Macros
          • Variables
        • EVM Link - Solidity (Coming Soon)
  • ⚡Working with Zeus
    • Introduction
      • Requirements
      • Install Zeus and Unboxing
        • More on zeus-box.json
      • Get Started fast! (Zeus-IDE)
      • Docker CI/CD
      • Example Github Using Zeus
      • Getting started with AntelopeIO Contracts (formerly EOSIO)
    • Zeus Basics
      • Compiling Contracts
        • Clean CMake Files
      • Unit Testing
        • Printing Console
        • Fetching Table
        • Helper Functions
        • Example
      • Create ...
        • Contract/Unit Test
          • All DAPP Network Services
        • DSP Service
        • Contract Deployment
      • Import/Export Keys
      • Migrate Contract
      • Start local environment
        • Kill Services
      • Upgrade
      • Zeus RC File
      • Zeus Config File
    • Zeus Box Basics
      • Zeus Boxes Directory
        • Services
          • Oracles
        • Sample Boxes
        • Other Boxes
          • DAPP Network
          • SDKs
            • ETH-SDK
            • EOS SDK
          • Frontends
          • Extensions
          • Tests
          • Seeds
          • Microservices
          • Meta Boxes
          • Libraries
          • Game
          • EOS Framework
          • Economics
          • Templates
      • Add/Remove
      • Deploy
      • List Boxes
  • ⚙️DAPP Network Services
    • DAPP Network Services
      • vRAM
        • Getting Started Guide
          • Compile and Deploy
          • Staking for services
          • Test
          • Basic implementation
        • Smart Contract Macros
          • dapp::multi_index
        • Tools
          • DAPP Client Integration
            • get_vram_row
          • Zeus Commands
          • Scripts
            • Get table
            • Get ordered keys
        • Additional Features
          • Save load and reset dapp::multi_index data
          • Advanced Features
      • LiquidAccounts
        • Getting Started Guide
          • Compile and Deploy
          • Staking for services
          • Test
            • DAPP Client
          • Basic Implementation
          • DAPP Account
        • Smart Contract Macros
          • payload
          • VACCOUNTS_APPLY
          • require_vaccount
          • VACCOUNTS_DELAYED_CLEANUP
        • Tools
          • DAPP Client Integration
            • push_liquid_account_transaction
          • Zeus Commands
            • Zeus vaccounts push-action
          • Scripts
            • Deserialize Payload
        • Use between contracts
        • Use Between Chains
      • LiquidHarmony
        • Getting Started Guide
          • Compile and Deploy
          • Staking for services
          • Test
          • Basic Implementation
          • API DSP Key Storage
        • Smart Contract Macros
          • geturi
          • ORACLE_HOOK_FILTER
        • Creating an Oracle Request
          • HTTP/HTTPS GET/POST JSON
            • HTTP/HTTPS GET
            • HTTP/HTTPS GET JSON
            • HTTP/HTTPS POST
            • HTTP/HTTPS POST JSON
          • ECHO GET/POST JSON
            • ECHO GET
            • ECHO GET JSON
            • ECHO POST
            • ECHO POST JSON
          • Nodeos History Get
          • Sister Chain Fetch
            • sister_chain_block
            • sister_chain_history
            • sister_chain_info
            • sister_chain_last_irreversible
            • sister_chain_table_row
          • Foreign Chain Fetch
            • ethereum
              • endpoints
              • block_number
              • history
              • balance
              • storage
            • tron
              • endpoints
              • balance
              • block_number
              • block
              • transactions
              • transaction
            • cardano
              • endpoints
              • blocks
              • history
              • state
            • ripple
              • endpoints
              • balance
              • ledger
              • transactions
            • bitcoin
              • endpoints
              • balance
              • block
              • history
              • transaction
            • litecoin
              • endpoints
              • balance
              • block
              • history
              • transaction
            • bitcoin cash
              • endpoints
              • balance
              • block
              • history
              • transaction
          • Wolfram Alpha
          • Random Number
          • Stockfish
          • SQL
        • Additional Features
          • Pre geturi hook
          • Don't spend CPU condition
      • LiquidScheduler
        • Getting Started Guide
          • Compile and Deploy
          • Staking for Services
          • Basic Implementation
        • Smart Contract Macros
          • schedule_timer
          • remove_timer
          • timer_callback
          • start_interval
          • remove_interval
        • Additional Features
          • Don't spend CPU condition
      • LiquidStorage
        • Getting Started Guide
          • Compile and Deploy
          • Staking for Services
          • Test
          • Basic Implementation
        • Tools
          • Zeus Commands
            • zeus storage upload
            • zeus storage unpin
          • DAPP Client Integration
            • get_uri
            • unpin_public_file
            • upload_archive_to_liquidstorage
            • upload_file_to_liquidstorage
            • upload_public_file_from_vaccount
        • Example GET Static Web Page
      • LiquidLink
        • Getting Started Guide
          • Compile and Deploy
          • Staking for services
          • Test
          • Basic Implementation
        • Smart Contract Macros
          • svc_sign_signtrx
      • LiquidAuth
        • Getting Started Guide
          • Compile and Deploy
          • Staking for services
          • Test
          • Basic Implementation
        • Tools
          • DAPP Client Integration
            • invokeAuthedCall
      • DAPP Service Macros
        • CONTRACT_START
        • CONTRACT_END
        • DAPPSERVICES_ACTIONS
        • DAPPSERVICE_ACTIONS_COMMANDS
      • Additional Services
      • Smart Contract Console Log Syntax
      • Using on_notify with services
    • Packages and Staking
  • 👨‍🚀DAPP Service Providers
    • Introduction to DAPP Service Providers
    • DSPs
      • Architecture Overview
      • Setup DSP
        • Blockchain Account
        • EOSIO Node
          • Firehose Setup
        • IPFS
          • Adding peers
            • Reconnecting Peers Periodically
          • Bootsrapping from an existing IPFS Cluster
          • Running a private network
        • PostgreSQL Database Backend
          • How to wipe local database
        • Ethereum Virtual Machine Node Setup
        • DSP Node
          • Logs
            • Monitor all logs script
        • Register Package
          • Modify Package metadata
          • Enable/Disable Package
          • Update cost per action in QUOTA
          • More on Packages
          • Whitelist Stakers
        • Test Setup
        • Known attack vectors
      • DSP Maintenance
        • Upgrade DSP Node
        • Claim Rewards
        • Replay Contract
        • Cleanup IPFS and Oracle Entries
        • Consumer Pays CPU Permissions
      • DSP API Endpoints
        • Event
        • Version
        • vRAM
        • LiquidLink
        • LiquidStorage
        • LiquidAccounts
  • 👨‍💻DAPP NETWORK LABS
    • Introduction
    • DAPP Workers
    • EdgeDSPs
    • EdgeOS
  • 🌉CROSS CHAIN BRIDGES
    • Getting Started with LiquidBridge
      • EOSIO.token <> EOSIO.token Fungible Tokens
      • EOSIO.token <> ERC20 Fungible Tokens
        • EOSIO Side Setup
        • EVM Side Setup
          • Setup EVM Contracts
            • Setup EVM Token Contract
              • Initialize Token and Transfer Ownership
            • Setup EVM Tokenpeg Contract
            • Verify and Publish Source Code
              • token contract and overview
              • tokenpeg contract
        • Initialize EOSIO Side
        • Test bridge
      • EOSIO <> EOSIO Atomic Assets Non-Fungible Tokens
      • EOSIO Atomic Assets <> ERC721 Non-Fungible Tokens
        • EOSIO Side Setup
        • EVM Side Setup
          • Setup EVM ERC721 Contract
          • Setup EVM Atomictokenpeg Contract
          • Transfer Ownership
          • Verify Source Code
        • Initialize EOSIO Side
        • Test bridge
      • EOSIO Atomic Assets <> ERC1155 Non-Fungible Tokens
        • EOSIO Side Setup
        • EVM Side Setup
          • Setup Proxy Contract
          • Setup EVM ERC1155 Contract
          • Setup EVM ERC1155 Tradeable Contract
          • Transfer Ownership of ERC1155 contract to atomictokenpeg1155 contract
        • Initialize EOSIO Side
        • Test bridge
  • ⛓️LiquidX Stake Across Chains
    • Getting Started with LiquidX
      • Use DAPP Network Services
        • Smart Contract Steps
        • Add DSP on New Chain
        • Map Mainnet to New Chain
        • Map New Chain to Mainnet
      • Become a DSP on another chain
        • Editing config.toml file
        • Push DSP account mapping action
      • Example Chains to Add
        • CoVax
        • WAX
        • WAX Test
        • Telos
        • Telos Test
        • BOS
      • Add a Chain to LiquidX
        • Create accounts and set dappservicex contract
        • Register chain
  • 😷COVAX
    • Getting Started with CoVax Chain
      • Become a DAPP Service Provider
      • Become a Block Producer
  • 🗂️Blockchain Guides
    • Testnet Creation Guides
      • Create Binance Smart Chain Testnet Account
        • Add Binance Smart Chain Testnet Network to Metamask
        • Create EVM keypair
        • Get faucet funds
      • Create WAX Testnet Account
      • Creating Jungle 3 account
      • Create Mumbai Testnet Account (Matic-Polygon)
        • Get faucet funds
      • Creating CryptoKylin Account
      • Create Rinkeby Testnet Account
        • Change Metamask network to Rinkeby
        • Get faucet funds
    • Governance Guides
      • How to submit a proposal
      • How the Proposal System Works
      • Governance Rewards
      • How to Propose an MSIG
      • Update dappservices contract by msig
      • Setup MSIG Telegram Bot
      • Governance Contracts
      • Governance Frontend
      • Propose Payment by Msig
  • 🗒️Release Notes
    • Latest
    • History
      • 2.0.8191
      • 2.0.7966
      • 2.0.7931
      • 2.1.7848
      • 2.0.7735
      • 2.0.7661
      • 2.0.7644
      • 2.0.7622
      • 2.1.7420
      • 2.1.7301
      • 2.1.7111
      • 2.0.6808
      • 2.0.5328
      • 2.0.4719
      • 2.0.4002
      • 2.0.3107
      • 2.0.2812
      • 2.0.2527
  • 🙋‍♀️FAQs
    • Frequently Asked Questions The DAPP Token
    • Frequently Asked Questions DAPP Service Providers (DSPs)
    • Frequently Asked Questions vRAM
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  • under [dsp] section
  • under [ipfs] section
  • DSP Services:

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  1. Release Notes

Latest

PreviousPropose Payment by MsigNextHistory

Last updated 2 years ago

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Latest

This release adds PostgreSQL support for the vRAM service. PostgreSQL is a much better storage medium for this data because the integrity of the vRAM data is validated on chain. Postgres is scalable, has high integrity for not losing data, is easy to setup, and should fix the issues some have been having with lost IPFS data.

Unfortunately, it does not appear that this update will speed up the vRAM fetch/post process, but I'm happy with the integrity and scaling potential. Data is also stored in the IPFS node to still allow p2p sharing via swarm peers and/or the broader IPFS network.

As a DSP operator to use the new PostgreSQL feature, you'll need to first get a list of all accounts staked to the vRAM service for your DSP, you can use dsphq.liquidapps.io for this. Then you can set the following variables in your toml file and restart the DSP to begin replaying. You need to reset allow_api_non_broadcast and postgresql_force_replay to false after to avoid security issues, specifically related to CPU drain attacks and to also allow fetching from cache.

under [dsp] section

allow_api_non_broadcast = true

under [ipfs] section

postgresql = true postgresql_force_replay = true

After running setup-dsp you can replay each account by following the directions here: https://docs.liquidapps.io/liquidapps-documentation/dapp-service-providers/dsps/dsp-maintenance/replay-contract

​​

  • updated zeus test flags, added --ipfs-postgres flag, PostgreSQL db must be run locally and manually, there is an install script provided to install go 1.19.4

  • updated DSP install guide to include section on installing Go dependencies and Go server for handling PostgreSQL data add/get

  • updated replay script to include new env var for bypassing DSP cache to force storing new data export IPFS_POSTGRESQL_FORCE_REPLAY=true

  • added section to PostgreSQL install instructions for creating blocks table and text_pattern_ops index

  • added section to PostgreSQL for setting up systemd process for go server process

  • added flag --ipfs-postgres to allow testing the feature locally, requires setting up your own local PostgreSQL instance configured to postgresql://postgres:password@localhost:5432/postgres

  • add start-localenv step to run 15-ipfs-ds-postgres if above flag set

  • added script to install go and dependencies at zeus/boxes/groups/microservices/ipfs-ds-postgres/scripts/install-go.sh

  • added new params to config.toml postgresql = true to enable feature

  • added postgresql_port = 8090 to set port at which go IPFS PostgreSQL instance is running

dappservices contract

DSP Services:

Link Library

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🗒️
docs
@liquidapps/zeus-cmd
@liquidapps/dsp
@liquidapps/dapp-client
@liquidapps/box-utils
LiquidAccount Service
LiquidVRAM Service
LiquidStorage Service
LiquidHarmony Service
LiquidScheduler Service
LiquidLink Service
LiquidAutb Service