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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On this page
  • config.toml:
  • How to install postgres on Ubuntu
  • Setup database and user
  • Create vRAM IPFS Tables
  • Install Go and prereqs
  • Run PostgreSQL server for IPFS

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  1. DAPP Service Providers
  2. DSPs
  3. Setup DSP

PostgreSQL Database Backend

PreviousRunning a private networkNextHow to wipe local database

Last updated 2 years ago

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A PostgreSQL databse is utilized to prevent duplicate DSP transactions by creating, getting, and updating service events as needed. An external database can be set by ensuring the node_env variable in the config.toml file is set to production. The database settings may be specified with the url variable, e.g., postgres://user:pass@example.com:5432/dbname.

config.toml:

[database]

# url syntax: postgres://user:pass@example.com:5432/dbname, only necessary for production
url = "postgres://user:pass@example.com:5432/dbname" 

# production (uses above database_url for database)
node_env = "production"

wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
echo "deb http://apt.postgresql.org/pub/repos/apt/ `lsb_release -cs`-pgdg main" |sudo tee  /etc/apt/sources.list.d/pgdg.list
sudo apt update
sudo apt -y install postgresql-12 postgresql-client-12

Setup database and user

sudo su - postgres
psql
CREATE DATABASE dsp;
CREATE USER dsp WITH ENCRYPTED PASSWORD 'Put-Some-Strong-Password-Here';
GRANT ALL PRIVILEGES ON DATABASE dsp to dsp;

Create vRAM IPFS Tables

CREATE TABLE IF NOT EXISTS blocks (key TEXT NOT NULL UNIQUE, data BYTEA);
CREATE INDEX IF NOT EXISTS blocks_key_text_pattern_ops_idx ON blocks (key text_pattern_ops);

Install Go and prereqs

GO_VERSION=1.19.4
wget https://go.dev/dl/go${GO_VERSION}.linux-amd64.tar.gz
rm -rf /usr/local/go && sudo tar -C /usr/local -xzf go${GO_VERSION}.linux-amd64.tar.gz
export PATH=$PATH:/usr/local/go/bin
rm ./go${GO_VERSION}.linux-amd64.tar.gz
rm -rf ./go
go install github.com/alanshaw/ipfs-ds-postgres@latest

Run PostgreSQL server for IPFS

Systemd service

Run which go to see where your install location is, if it is not /usr/local/go/bin/go, update the ExecStart below with your path.

sudo -E su - -p
cat <<EOF > /lib/systemd/system/ipfs-ds-postgres.service
[Unit]
Description=IPFS PostgreSQL alternative backend
After=network.target
[Service]
User=root
# update working directory
# echo $(readlink -f `which setup-dsp` | xargs dirname)/../ipfs-ds-postgres/services/ipfs-ds-postgres
WorkingDirectory=/root/.nvm/versions/node/v16.19.0/lib/node_modules/@liquidapps/dsp/zeus_boxes/ipfs-ds-postgres/services/ipfs-ds-postgres
Environment="DATABASE_URL=postgres://user:password@domain/db"
# determine go install path with below command, if different than below, update
# which go
ExecStart=/usr/local/go/bin/go run main.go
KillMode=process
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF

systemctl start ipfs-ds-postgres
systemctl enable ipfs-ds-postgres
exit
sleep 3
systemctl status ipfs-ds-postgres

Note if you are setting up the PostgreSQL server for vRAM where other users were previously using that service, you will need to see the section to replay all staked contracts to populate the DB with their data. Otherwise the db will not be able to fetch that info.

For how to wipe the database, see

👨‍🚀
How to install postgres on Ubuntu
replay contract
here