Limited Transaction details with BTCEXP_ELECTRUM_TXINDEX=true

[Zakarot]

I'm not 100% sure if this is a bug or working as designed, but I can't find any documentation to clarify if it is or not, so I'm assuming it is a bug. I have set BTCEXP_ELECTRUM_TXINDEX=true as well as BTCEXP_ADDRESS_API=electrum and BTCEXP_ELECTRUM_SERVERS=tcp://127.0.0.1:50001 in my .env file. I am assuming that that is a drop in replacement for having the txindex enabled in Bitcoin Core, and all the same features should still work. However I do not seem to be able to access transaction details. The Transaction Stats and UTXO Set pages seems to be working fine.

Environment:

• Bitcoin Core / Node Version: 270200 (/Satoshi:27.2.0/)
• Electrs Version: v0.10.4
• NodeJS Version: 9.2.0
• Browser: Firefox
• Code Version / Commit: v3.4.0
• Installation Method: Source Code

/etc/bitcoin/bitcoin.conf:

daemon=1
prune=0
txindex=0
maxuploadtarget=86400M
upnp=0
whitelist=download,noban,mempool,relay@127.0.0.1
disablewallet=1
rpcallowip=127.0.0.1
rpcbind=127.0.0.1:8332
rpccookiefile=cookie.dat
rpccookieperms=group
server=1
[main]
[test]
[signet]
[regtest]

~/.config/btc-rpc-explorer.env:

BTCEXP_SECURE_SITE=true
BTCEXP_COIN=BTC
BTCEXP_HOST=127.0.0.1
BTCEXP_PORT=3002
BTCEXP_BITCOIND_HOST=127.0.0.1
BTCEXP_BITCOIND_PORT=8332
BTCEXP_BITCOIND_COOKIE=/var/lib/bitcoind/cookie.dat
BTCEXP_BITCOIND_RPC_TIMEOUT=5000
BTCEXP_ADDRESS_API=electrum
BTCEXP_ELECTRUM_SERVERS=tcp://127.0.0.1:50001
BTCEXP_ELECTRUM_TXINDEX=true
BTCEXP_SLOW_DEVICE_MODE=false
BTCEXP_NO_RATES=false
BTCEXP_BASIC_AUTH_PASSWORD=***
BTCEXP_DISPLAY_CURRENCY=sat
BTCEXP_LOCAL_CURRENCY=usd
BTCEXP_UI_TIMEZONE=local
BTCEXP_UI_THEME=dark
BTCEXP_UI_HIDE_INFO_NOTES=true

Steps to reproduce the behavior:

1. Go to any transaction details. I usually search a wallet address, then click on a transaction.
2. Fee Rate, Total Fee, and Input output details are unavailable
3. Hovering over Free Rate or Total Fee displays: "Determining the fee of confirmed transactions requires txindex to be enabled"

Similarly, searching for a transaction ID directly, displays the following error: "No results found for query: Your node does not have txindex enabled. Without it, you can only lookup wallet, mempool, and recently confirmed transactions by their txid. Searching for non-wallet transactions that were confirmed more than 3 blocks ago is only possible if the confirmed block height is available."

Expected behavior: When using BTCEXP_ELECTRUM_TXINDEX=true instead of Bitcoin Core's txindex, retain the ability to search txids, pull up details about fees, etc...

Screenshots or Log Output

When searching for a wallet address in BTC RPC Explorer, Electrs generates this in its log:

Nov 30 14:56:01 BTC electrs[631]: [2024-11-30T19:56:01.479Z INFO electrs::electrum] your wallet uses less efficient method of querying electrs, consider contacting the developer of your wallet. Reason: blockchain.scripthash.get_balance called for unsubscribed scripthash