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Response Modification

Set Headers Policy

Adds or sets headers on the on the outgoing response.

Configuration

The configuration shows how to configure the policy in the 'policies.json' document.

config/policies.json
{ "name": "my-set-headers-outbound-policy", "policyType": "set-headers-outbound", "handler": { "export": "SetHeadersOutboundPolicy", "module": "$import(@zuplo/runtime)", "options": { "headers": [ { "name": "my-header", "value": "my-value" } ] } } }

Policy Configuration

  • name <string> - The name of your policy instance. This is used as a reference in your routes.
  • policyType <string> - The identifier of the policy. This is used by the Zuplo UI. Value should be set-headers-outbound.
  • handler.export <string> - The name of the exported type. Value should be SetHeadersOutboundPolicy.
  • handler.module <string> - The module containing the policy. Value should be $import(@zuplo/runtime).
  • handler.options <object> - The options for this policy. See Policy Options below.

Policy Options

The options for this policy are specified below. All properties are optional unless specifically marked as required.

  • headers (required) <object[]> - An array of headers to set on the response. By default, headers will be overwritten if they already exists in the response, specify the overwrite property to change this behavior.
    • name (required) <string> - The name of the header.
    • value (required) <string> - The value of the header.
    • overwrite <boolean> - Overwrite the value if the header is already present in the response. Defaults to true.

Using the Policy

Read more about how policies work

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Last modified on May 29, 2026
Clear Response Headers PolicySet Status Code Policy
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  • Configuration
    • Policy Configuration
    • Policy Options
  • Using the Policy
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