Midnight Network Infrastructure

Configure and manage Midnight Network components for dApp development.

Quick Reference

Service	Testnet-02 URL
Indexer	https://indexer.testnet-02.midnight.network/api/v1/graphql
Indexer WS	wss://indexer.testnet-02.midnight.network/api/v1/graphql/ws
RPC Node	https://rpc.testnet-02.midnight.network
Proof Server	http://localhost:6300 (local)
Faucet	https://faucet.testnet-02.midnight.network

Reference Files

Topic	Resource
Network Config	references/network-config.md
Proof Server	references/proof-server.md
Indexer Queries	references/indexer-graphql.md
Troubleshooting	references/troubleshooting.md

Development Setup

1. Start Proof Server

docker run -p 6300:6300 midnightnetwork/proof-server -- \
  midnight-proof-server --network testnet

2. Install Lace Wallet

Download from lace.io and enable Midnight mode.

3. Get Testnet Tokens

Visit the faucet to receive tDUST for testing.

Architecture

┌──────────────┐     ┌───────────────┐     ┌──────────────┐
│  Your dApp   │────▶│  Proof Server │────▶│   Midnight   │
│  (Browser)   │     │   (localhost) │     │   Network    │
└──────────────┘     └───────────────┘     └──────────────┘
       │                                          │
       │              ┌───────────────┐           │
       └─────────────▶│    Indexer    │◀──────────┘
                      │   (GraphQL)   │
                      └───────────────┘

Network IDs

import { NetworkId, setNetworkId } from '@midnight-ntwrk/midnight-js-network-id';

// Always set before using providers
setNetworkId(NetworkId.TestNet);

// Available networks
enum NetworkId {
  DevNet = 'DevNet', // Developer network (not persistent)
  TestNet = 'TestNet', // Persistent testnet
  MainNet = 'MainNet', // Midnight mainnet
  Undeployed = 'Undeployed', // Local testing
}

Health Checks

# Check proof server
curl http://localhost:6300/health

# Check indexer
curl https://indexer.testnet-02.midnight.network/api/v1/graphql \
  -H 'Content-Type: application/json' \
  -d '{"query":"{ __typename }"}'

Common Issues

Issue	Solution
Proof generation timeout	Increase timeout, check Docker resources
Connection refused	Ensure proof server is running
Network mismatch	Verify NetworkId matches wallet
Insufficient funds	Get tDUST from faucet

Best Practices

• ✅ Start proof server before dApp
• ✅ Use wallet's service URIs when available
• ✅ Set NetworkId before provider initialization
• ✅ Monitor proof server logs for errors
• ❌ Don't hardcode network URLs (use config)