| # Copyright (c) 2020 Contributors to the Eclipse Foundation |
| # |
| # See the NOTICE file(s) distributed with this work for additional |
| # information regarding copyright ownership. |
| # |
| # This program and the accompanying materials are made available under the |
| # terms of the Eclipse Public License 2.0 which is available at |
| # http://www.eclipse.org/legal/epl-2.0 |
| # |
| # SPDX-License-Identifier: EPL-2.0 |
| name: If-Match |
| in: header |
| description: >- |
| The `If-Match` header, which has to conform to RFC-7232 (Conditional Requests). Common usages are: |
| * optimistic locking by specifying the `ETag` from a previous GET response, e.g. `If-Match: "rev:4711"` |
| * retrieving or modifying a resource only if it already exists, e.g. `If-Match: *` |
| required: false |
| schema: |
| type: string |
