prepared_query.md

Prepared Query Information

The prepared query used to discover the product service is listed below. It's configured in Consul by the Terraform code using the Consul provider.

{
  "Name": "product",
  "Service": {
    "Service": "product",
    "Failover": {
       "Datacenters": ["dc2", "dc1"]
    },
    "OnlyPassing": true,
    "Connect": true
  }
}

To write this prepared query manually:

• Write the json code listed above to the file prepared.json
• Write Prepared Query to Consul using the API (connect to a Consul Server)
  • curl --request POST --data @prepared.json http://127.0.0.1:8500/v1/query

Example Consul API commands for prepared queries:

• List Prepared Queries
  • curl http://127.0.0.1:8500/v1/query
• Get ID of first Query
  • UUID=$(curl -s http://127.0.0.1:8500/v1/query | jq -r .[0].ID)
• remove Query
  • curl --request DELETE "http://127.0.0.1:8500/v1/query/$UUID"