Untitled :: DataStax Astra DB Classic Documentation

Check keyspace existence

To check if a keyspace exists, execute a GraphQL query:

graphQL command
Result

# Works in localhost:8080/graphql-schema
# for either CQL-first or schema-first
query GetKeyspace {
  keyspace(name: "library") {
      name
      dcs {
          name
          replicas
      }
      tables {
          name
          columns {
              name
              kind
              type {
                  basic
                  info {
                      name
                  }
              }
          }
      }
  }
}

{
  "data": {
    "keyspace": {
      "name": "library",
      "dcs": [],
      "tables": [
        {
          "name": "book",
          "columns": [
            {
              "name": "title",
              "kind": "PARTITION",
              "type": {
                "basic": "VARCHAR",
                "info": null
              }
            },
            {
              "name": "author",
              "kind": "CLUSTERING",
              "type": {
                "basic": "VARCHAR",
                "info": null
              }
            },
            {
              "name": "format",
              "kind": "REGULAR",
              "type": {
                "basic": "SET",
                "info": {
                  "name": null
                }
              }
            },
            {
              "name": "genre",
              "kind": "REGULAR",
              "type": {
                "basic": "SET",
                "info": {
                  "name": null
                }
              }
            },
            {
              "name": "isbn",
              "kind": "REGULAR",
              "type": {
                "basic": "VARCHAR",
                "info": null
              }
            },
            {
              "name": "language",
              "kind": "REGULAR",
              "type": {
                "basic": "VARCHAR",
                "info": null
              }
            },
            {
              "name": "pub_year",
              "kind": "REGULAR",
              "type": {
                "basic": "INT",
                "info": null
              }
            }
          ]
        },
        {
          "name": "reader",
          "columns": [
            {
              "name": "name",
              "kind": "PARTITION",
              "type": {
                "basic": "VARCHAR",
                "info": null
              }
            },
            {
              "name": "user_id",
              "kind": "CLUSTERING",
              "type": {
                "basic": "UUID",
                "info": null
              }
            },
            {
              "name": "addresses",
              "kind": "REGULAR",
              "type": {
                "basic": "LIST",
                "info": {
                  "name": null
                }
              }
            },
            {
              "name": "birthdate",
              "kind": "REGULAR",
              "type": {
                "basic": "DATE",
                "info": null
              }
            },
            {
              "name": "email",
              "kind": "REGULAR",
              "type": {
                "basic": "SET",
                "info": {
                  "name": null
                }
              }
            },
            {
              "name": "reviews",
              "kind": "REGULAR",
              "type": {
                "basic": "TUPLE",
                "info": {
                  "name": null
                }
              }
            }
          ]
        }
      }
    }
}