metadata property
The metadata provided here is included as part of the metadata_context
(of type google.protobuf.Struct) in the ProcessingRequest message sent
to the extension server.
The metadata is available under the namespace com.google..... For
example:
com.google.lb_traffic_extension.lbtrafficextension1.chain1.ext1. The
following variables are supported in the metadata: {forwarding_rule_id}
- substituted with the forwarding rule's fully qualified resource name. This field must not be set for plugin extensions. Setting it results in a validation error. You can set metadata at either the resource level or the extension level. The extension level metadata is recommended because you can pass a different set of metadata through each extension to the backend. This field is subject to following limitations: * The total size of the metadata must be less than 1KiB. * The total number of keys in the metadata must be less than 16. * The length of each key must be less than 64 characters. * The length of each value must be less than 1024 characters. * All values must be strings.
Optional.
The values for Object must be JSON objects. It can consist of num,
String, bool and null as well as Map and List values.
Implementation
core.Map<core.String, core.Object?>? metadata;