hubspot-advanced-troubleshooting

# HubSpot Advanced Troubleshooting ## Overview Deep debugging techniques for complex HubSpot API issues: systematic layer testing, timing analysis, correlation ID tracking, and support escalation. ## Prerequisites - Access to application logs - `curl` and `jq` available - HubSpot access token for manual testing ## Instructions ### Step 1: Systematic Layer Testing Test each layer independently to isolate the failure: ```bash #!/bin/bash # hubspot-layer-test.sh echo "=== HubSpot Layer-by-Layer Diagnostic ===" # Layer 1: DNS Resolution echo "1. DNS Resolution" dig api.hubapi.com +short || echo "FAIL: DNS resolution" # Layer 2: TCP Connectivity echo "2. TCP Connectivity" timeout 5 bash -c 'echo > /dev/tcp/api.hubapi.com/443' 2>/dev/null \ && echo "OK" || echo "FAIL: Cannot reach port 443" # Layer 3: TLS Handshake echo "3. TLS Handshake" echo | openssl s_client -connect api.hubapi.com:443 2>/dev/null | grep "Verify return code" # Layer 4: HTTP Response (unauthenticated) echo "4. HTTP Response (no auth)" curl -so /dev/null -w "HTTP %{http_code} in %{time_total}s\n" \ https://api.hubapi.com/crm/v3/objects/contacts?limit=1 # Layer 5: Authenticated Request echo "5. Authenticated Request" RESPONSE=$(curl -s -w "\n%{http_code}" \ https://api.hubapi.com/crm/v3/objects/contacts?limit=1 \ -H "Authorization: Bearer $HUBSPOT_ACCESS_TOKEN") HTTP_CODE=$(echo "$RESPONSE" | tail -1) BODY=$(echo "$RESPONSE" | head -n -1) echo "HTTP $HTTP_CODE" if [ "$HTTP_CODE" = "200" ]; t...