Module ext 

Extensions: the names, the NATS subjects and the messages of an ext_call, shared by the platform, the worker, the extension runner, the native services and the guest SDK.

Structs

CallContext

Who calls, and until when the caller waits.

CallerService

ExtFailure

Why an extension refused or failed a call, in its own words.

Ready

What a native service answers once it serves its extensions.

Enums

ExtReply

A provider’s answer: {"ok": <value>} or {"error": {"code": …, "message": …}}.

Constants

ANY_CALLER

A caller that stands for every service of the tenant.

NAME_MAX

The longest extension name, in bytes.

PROTOCOL_VERSION

The version of ExtRequest and Ready this crate speaks.

QUEUE_GROUP

The queue group every provider of an extension subscribes in, so each call reaches one of them.

RESERVED_CODES

The codes a runner or a provider answers for the transport rather than for the extension: each is the label of the kind the caller sees.

SOCKET_VAR

The variable naming the Unix socket a native service serves on.

SUBJECT_PREFIX

The subject every call subject starts with.

TOKEN_VAR

The variable holding the token the extension runner sends a native service as Authorization: Bearer <token> with every request; each start of a child has its own.

Functions

call_subject

The subject the calls of the tenant tenant to the extension name travel on.

callers

The callers of an extension as they are stored: each a service name or ANY_CALLER, at least one, each once, sorted.

deploy_subject

The subject a deploy or rollback of the tenant’s native service service is announced on, for the extension runner.

is_valid_extension_name

Whether name is an extension name: 1 to NAME_MAX bytes of dot-separated segments of [a-z0-9-]+ (google.token, pdf.render-v2).

name_violation

Why name is not an extension name; None when it is one.

undeploy_subject

The subject the removal of the tenant’s native service service is announced on.