对 CSV 文件使用 Gzip 压缩

创建一条 compression rule，将 Gzip 压缩设为 CSV 文件的首选压缩方法。

以下示例规则会将 Gzip 压缩配置为 CSV 文件的首选压缩方法。如果访问者不支持该算法，Cloudflare 将尝试使用访问者支持的其他算法压缩响应。

When incoming requests match（当传入请求匹配时）

Custom filter expression:
- File extension equals csv

Then（然后）

Compression options: Custom
Define a custom order for compression types: Gzip, Auto

以下示例使用 Update a zone ruleset 操作，将现有 entry point ruleset（ID 为 {ruleset_id}）在 http_response_compression 阶段的规则设置为单条 compression rule：

Required API token permissions

At least one of the following token permissions is required:

Response Compression Write
Config Settings Write
Dynamic URL Redirects Write
Cache Settings Write
Custom Errors Write
Origin Write
Managed headers Write
Zone Transform Rules Write
Mass URL Redirects Write
Magic Firewall Write
L4 DDoS Managed Ruleset Write
HTTP DDoS Managed Ruleset Write
Sanitize Write
Transform Rules Write
Select Configuration Write
Bot Management Write
Zone WAF Write
Account WAF Write
Account Rulesets Write
Logs Write
Logs Write

Update a zone rulesetbash

curl "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/rulesets/$RULESET_ID" \
	--request PUT \
	--header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
	--json '{
		"rules": [
				{
						"ref": "use_gzip_for_csv",
						"expression": "http.request.uri.path.extension eq \"csv\"",
						"action": "compress_response",
						"action_parameters": {
								"algorithms": [
										{
												"name": "gzip"
										},
										{
												"name": "auto"
										}
								]
						}
				}
		]
	}'

使用 Terraform 时，通过 ref 字段可在更新后保持稳定的规则 ID。添加该字段可防止 Terraform 在变更时重建规则。更多信息请参阅故障排除（Terraform 文档）。