UNPKG

1.12 kBTypeScriptView Raw
1/**
2 * Copyright 2020 Google LLC
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16/**
17 * Helpers for constructing routing headers.
18 *
19 * These headers are used by Google infrastructure to determine how to route
20 * requests, especially for services that are regional.
21 *
22 * Generally, these headers are specified as gRPC metadata.
23 */
24/**
25 * Constructs the routing header from the given params
26 *
27 * @param {Object} params - the request header parameters.
28 * @return {string} the routing header value.
29 */
30export declare function fromParams(params: {
31 [index: string]: string | number | boolean;
32}): string;