Add missing types

types/defines/hyperdrive.d.ts

@@ -0,0 +1,49 @@
+interface Hyperdrive {
+  /**
+   * Connect directly to Hyperdrive as if it's your database, returning a TCP socket.
+   *
+   * Calling this method returns an idential socket to if you call
+   * `connect("host:port")` using the `host` and `port` fields from this object.
+   * Pick whichever approach works better with your preferred DB client library.
+   *
+   * Note that this socket is not yet authenticated -- it's expected that your
+   * code (or preferably, the client library of your choice) will authenticate
+   * using the information in this class's readonly fields.
+   */
+  connect(): Socket;
+
+  /**
+   * A valid DB connection string that can be passed straight into the typical
+   * client library/driver/ORM. This will typically be the easiest way to use
+   * Hyperdrive.
+   */
+  readonly connectionString: string;
+
+  /*
+   * A randomly generated hostname that is only valid within the context of the
+   * currently running Worker which, when passed into `connect()` function from
+   * the "cloudflare:sockets" module, will connect to the Hyperdrive instance
+   * for your database.
+   */
+  readonly host: string;
+  /*
+   * The port that must be paired the the host field when connecting.
+   */
+  readonly port: string;
+  /*
+   * The username to use when authenticating to your database via Hyperdrive.
+   * Unlike the host and password, this will be the same every time 
+   */
+  readonly user: string;
+  /*
+   * The randomly generated password to use when authenticating to your
+   * database via Hyperdrive. Like the host field, this password is only valid
+   * within the context of the currently running Worker instance from which
+   * it's read.
+   */
+  readonly password: string;
+  /*
+   * The name of the database to connect to.
+   */
+  readonly database: string;
+}