kotsikau/addRequestHeader

addRequestHeader mediation policy

This Ballerina mediation policy adds a configured HTTP header to every outbound backend request in a request flow.

What it does

• Reads headerName and headerValue policy parameters.
• Fails fast when headerName is missing or empty.
• Overwrites any existing request header with the same name.
• Does not log the header value.

Policy parameters

• headerName
• headerValue

Both parameters can be provided directly or through deploy-time variables or secrets, for example:

• ${CUSTOM_HEADER_NAME}
• ${CUSTOM_HEADER_VALUE}

Build and publish

From the project root:

bal pack
bal push

Attach in Bijira/API Platform Console

1. Open the API proxy.
2. Go to Develop -> Policies.
3. Attach addRequestHeader to the Request flow.
4. Configure headerName and headerValue.

Notes

• This policy is request-flow only.
• No Java mediator, Redis, or external service is required.