---
title: "POST /projects/{project}/global/backendBuckets/{backendBucket}/addSignedUrlKey"
method: POST
path: "/projects/{project}/global/backendBuckets/{backendBucket}/addSignedUrlKey"
tags: ["backendBuckets"]
---

# POST /projects/{project}/global/backendBuckets/{backendBucket}/addSignedUrlKey

`POST /projects/{project}/global/backendBuckets/{backendBucket}/addSignedUrlKey`

Adds a key for validating requests with signed URLs for this backend
bucket.

## Path parameters

- `project` string, required
- `backendBucket` string, required

## Query parameters

- `requestId` string

## Request body

- SignedUrlKey — Represents a customer-supplied Signing Key used by Cloud CDN Signed URLs
  - `keyValue` string — 128-bit key value used for signing the URL. The key value must be a validRFC 4648 Section 5 base64url encoded string.
  - `keyName` string — Name of the key. The name must be 1-63 characters long, and comply withRFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.

## Response `200`

Successful response

---

[API](https://skmtc.net/google/apis/compute.md) · [All operations](https://skmtc.net/google/apis/compute/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/google/compute/versions/6120ed8969d4/schema)