Transformations

Templating language

Learn how to use transformation templates to transform headers and bodies of requests and responses.

Inject response headers

Use custom Gloo Gateway functions to inject headers into responses.

Add multiple values to headers

Use the headersToAppend capability to add multiple values to the same header.

Decode base64 headers

Automatically decode base64 values in request headers and add the decoded value as a response …

Use extractors for headers

Use Gloo Gateway extractors to retrieve request header values, transform them, and add them back as …

Add headers to body

Use extractors to capture request header values and add those values to the request body.

Extract query parameters

Extract query parameters, transform them, and add them to the response body.

Update request paths and methods

Use the :path and :method pseudo headers to change the request path and HTTP method when a …

Create redirect URLs

Extract the values of common pseudo headers to generate a redirect URL.

Change response status

Update the response status based on fields that are present in the request body.

Update response body

Learn how to return a customized response body and how replace specific values in the body.

Enrich access logs

Use a transformation template to inject additional metadata to your access logs.