Add db-tx-end config option

configuration.rst

@@ -39,6 +39,7 @@ db-anon-role             String                    Y
 db-pool                  Int     10
 db-pool-timeout          Int     10
 db-extra-search-path     String  public
+db-tx-end                String  commit
 server-host              String  !4
 server-port              Int     3000
 server-unix-socket       String
@@ -133,6 +134,27 @@ db-extra-search-path
 
   Multiple schemas can be added in a comma-separated string, e.g. ``public, extensions``.
 
+.. _db-tx-end:
+
+db-tx-end
+---------
+
+  Specifies how to terminate the database transactions.
+
+  .. code:: bash
+
+    # The transaction is always committed
+    db-tx-end = "commit"
+
+    # The transaction is committed unless a "Prefer: tx=rollback" header is sent
+    db-tx-end = "commit-allow-override"
+
+    # The transaction is always rolled back
+    db-tx-end = "rollback"
+
+    # The transaction is rolled back unless a "Prefer: tx=commit" header is sent
+    db-tx-end = "rollback-allow-override"
+
 .. _server-host:
 
 server-host
@@ -317,4 +339,3 @@ raw-media-types
 
    raw-media-types="image/png, text/xml"
 
-