Enum SchemaSource 

pub enum SchemaSource {
    None,
    Reflection,
    Bundled(Bytes),
    ReflectionOrBundled(Bytes),
}

Where the proxy gets the descriptors it needs to transcode +json.

Variants

None

Binary-only: +json is rejected with Unimplemented (the default).

Reflection

Fetch descriptors from the upstream’s gRPC reflection service. The whole schema is enumerated eagerly and refreshed on a TTL (see ProxyConfig::reflection_ttl).

Bundled(Bytes)

A precompiled FileDescriptorSet (protoc --descriptor_set_out / prost file_descriptor_set_path), for upstreams that don’t expose reflection.

ReflectionOrBundled(Bytes)

Reflection primary, with the bundle as a fallback: the bundle serves immediately (and if the upstream has no reflection at all), and the live reflection snapshot takes over once it loads. Best of both — a baked-in safety net plus live descriptors when the upstream supports reflection.

Trait Implementations

impl Clone for SchemaSource

fn clone(&self) -> SchemaSource

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for SchemaSource

fn default() -> SchemaSource

Returns the “default value” for a type.