IRPCVaultExtensionMethods.IsExtensionMethodAvailable

Vault API / standard read session idempotent returns metadata structure version

Tells whether an event handler method with the given name exists and is active.

Service	Vault extension methods `MFiles.IRPCVaultExtensionMethods`
gRPC method	`/MFiles.IRPCVaultExtensionMethods/IsExtensionMethodAvailable`
HTTP (mf-http-grpc)	`POST /grpc/v1/is-extension-method-available`
Request	`IsExtensionMethodAvailableRequest`
Response	`IsExtensionMethodAvailableResponse`
Book and level	Vault API, standard
Kind	read
Session	Required: the session ID from LogIn in the mfiles-session-id-bin metadata.
Idempotent	yes
Returns metadata structure version	yes (in the mfiles-metadata-version-bin trailer)
Streaming	none (unary)

Remarks

Checks only the VaultExtensionMethod event handlers of the vault. Application extension methods and the server's built-in methods are not reported.
A name that does not exist returns exists false; the call does not fail.

Nested message fields are expanded to depth 3; follow a type link for deeper levels and for the type's own page.

Field	Type	Description
`method_identifier`	`string`	The name of the VaultExtensionMethod event handler.

Nested message fields are expanded to depth 3; follow a type link for deeper levels and for the type's own page.

Field	Type	Description
`exists`	`bool`	True if an event handler with the name exists.
`is_active`	`bool`	True if that event handler is active.