MidChains Market Data Connector

MidChains Data Connector based on WebSocket and REST.

Features

midchainsConnector Key

Instrument Types

FX

Asset Class

Crypto

Technology

WebSocketREST

Feed Mode

Real-Time

Order Book Update Mode

Snapshot

Order Book Type

Aggregated

Message Types

✓

Level 1

✓

Level 2

✗

Level 3

✗

Trades

✗

Funding Rates

Configuration

Data Connector Parameters

Parameter	Default Value	Description
WebSocket URL	N/A	WebSocket root URL of the MidChains LP Gateway (Order Book Trading). Example (development): wss://lpob-gateway-dev.midchains.info/v1/ws.
REST URL	N/A	REST root URL of the MidChains LP Gateway. Used for login (challenge–response) and session keepalive. Example (development): https://lpob-gateway-dev.midchains.info/.
API Key	N/A	API key (UUID) registered with the MidChains LP Gateway (api_key_id).
Private Key	N/A	PEM file (.pem) holding the RSA-2048 private key used to sign the login challenge. Generate a key pair with OpenSSL if needed: openssl genrsa -out client_private.pem 2048 openssl rsa -in client_private.pem -pubout -out client_public.pem Share the public key with MidChains; keep the private key secret.
Read Timeout	45000	Read timeout in milliseconds.
Reconnect Timeout	15000	Reconnect timeout in milliseconds.
Keepalive Interval	30000	Interval in milliseconds between REST session keepalive calls (POST /api/v1/keepalive). Must be shorter than the gateway keepalive timeout returned at login confirm.
Exchange Name	MIDCHAINS	Exchange name for this session.
Output Book Size	20	Size of the output book.

Symbology

Symbols use the BASE/QUOTE pair format as the MidChains WebSocket subscription channel. Symbols are case-sensitive and use upper-case letters.

Supported symbol notations:

Symbol Notation	Examples
BASE/QUOTE	USDC/USD BTC/USD BTC/USDT BTC/AED

For the full list of tradable pairs, refer to the MidChains markets endpoint (GET /v1/markets) described in the MidChains LP Gateway Integration Guide.

Logging

To enable detailed logging, use these lines in the <QSHOME>/config/gflog.xml file:

<logger name="deltix.qsrv.hf.plugins.data.midchains" level="TRACE">
  <appender-ref ref="safeAppender"/>
</logger>