Policy Template - For reuse, save time, group repeating policies together as template that can apply to API proxy.


Any_PolicyTemplate
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(1)Add verifyAPIKey.xml       to Proxy PreFlow
(2)Add removeHeaderAPIKey.xml to Proxy PreFlow
(3)Add kvmGetCredentialEncryptedSAPES5.xml   to Target PreFlow
(4)Add basicAuthSetUserPasswordEncrypted.xml to Target PreFlow


Create Policy Template
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Create policy template 'APIKeyTemplate' using (1) and (2)
Create policy template 'SAPES5BasicAuthTemplate' using (3) and (4)
Create policy template 'APIKeySAPES5BasicAuthTemplate' using (1) and (2) and(3) and (4)

Apply Policy Template
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Create new API proxy for CI 'Any_UseAPIKey' and apply template 'APIKeyTemplate'
Create new API proxy for S4 'GWSAMPLE_BASIC2' and apply template 'APIKeyTemplate' and 'SAPES5BasicAuthTemplate'

Reference:
https://help.sap.com/docs/integration-suite/sap-integration-suite/create-policy-template
https://api.sap.com/content-type/API/apis/policytemplate
https://api.sap.com/package/SecurityBestPractices/policytemplate