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tools: add http json-rpc reachability check

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Adds check_http_rpc.sh, a small script that sends a web3_clientVersion request to confirm HTTP RPC reachability.
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GeneratedUserFJ839 2025-12-16 12:54:18 +01:00 committed by GitHub
parent 6978ab48aa
commit 889dc67021
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scripts/check_http_rpc.sh Normal file
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#!/usr/bin/env bash
set -euo pipefail
# Simple helper to verify that an HTTP JSON-RPC endpoint is reachable.
#
# Usage:
# ./scripts/check_http_rpc.sh
# RPC_URL=http://10.0.0.5:8545 ./scripts/check_http_rpc.sh
RPC_URL="${RPC_URL:-http://127.0.0.1:8545}"
echo "Checking HTTP JSON-RPC endpoint: ${RPC_URL}"
echo
payload='{"jsonrpc":"2.0","method":"web3_clientVersion","params":[],"id":1}'
response="$(curl -s -X POST "${RPC_URL}" -H "Content-Type: application/json" -d "${payload}")"
if [ -z "${response}" ]; then
echo "No response received. Is the node running and HTTP enabled?"
exit 1
fi
echo "Raw response:"
echo "${response}"
echo
echo "If this includes a valid client version string, the HTTP JSON-RPC endpoint is working."