--- title: Precursor --- [Skip to content](#_top) [API Reference](https://developers.cloudflare.com/api/go) Copy Markdown Open in **Claude**Open in **ChatGPT**Open in **Cursor** --- **Copy Markdown****View as Markdown** # Precursor ##### [Get Zone Precursor Config](https://developers.cloudflare.com/api/go/resources/precursor/methods/get) client.Precursor.Get(ctx, query) (\*[PrecursorConfig](), error) GET/zones/{zone\_id}/precursor ##### [Update Zone Precursor Config](https://developers.cloudflare.com/api/go/resources/precursor/methods/update) client.Precursor.Update(ctx, params) (\*[PrecursorConfig](), error) PUT/zones/{zone\_id}/precursor ##### ModelsExpand Collapse
type EnforcementRule struct{…} Expression string The filter expression that determines which requests the rule matches. maxLength4000 Link to this property
Mode EnforcementRuleMode The override mode Precursor applies to requests matching an enforcement rule. Unlike default_mode, this cannot be off. One of the following: const EnforcementRuleModeMinFriction EnforcementRuleMode = "min-friction" Link to this property const EnforcementRuleModeMaxSecurity EnforcementRuleMode = "max-security" Link to this property
Link to this property ID stringOptional The read-only identifier that Cloudflare assigns to the rule. Link to this property Description stringOptional An informative description of the rule. Link to this property Enabled boolOptional Whether the rule is active. Link to this property
[Link to this property](<#(resource)%20precursor%20%3E%20(model)%20enforcement_rule%20%3E%20(schema)>)
type PrecursorConfig struct{…}
DeprecatedDefaultMode PrecursorConfigDefaultModeOptional The zone-level Precursor enforcement mode applied to requests that do not match a more specific enforcement rule. One of the following: const PrecursorConfigDefaultModeOff PrecursorConfigDefaultMode = "off" Link to this property const PrecursorConfigDefaultModeMinFriction PrecursorConfigDefaultMode = "min-friction" Link to this property const PrecursorConfigDefaultModeMaxSecurity PrecursorConfigDefaultMode = "max-security" Link to this property
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DeprecatedEnforcementRules \[]EnforcementRuleOptional The ordered list of enforcement rules for the zone. Expression string The filter expression that determines which requests the rule matches. maxLength4000 Link to this property
Mode EnforcementRuleMode The override mode Precursor applies to requests matching an enforcement rule. Unlike default_mode, this cannot be off. One of the following: const EnforcementRuleModeMinFriction EnforcementRuleMode = "min-friction" Link to this property const EnforcementRuleModeMaxSecurity EnforcementRuleMode = "max-security" Link to this property
Link to this property ID stringOptional The read-only identifier that Cloudflare assigns to the rule. Link to this property Description stringOptional An informative description of the rule. Link to this property Enabled boolOptional Whether the rule is active. Link to this property
Link to this property
[Link to this property](<#(resource)%20precursor%20%3E%20(model)%20precursor_config%20%3E%20(schema)>)