Vault get

Tag 8: the server relays an ask of the container that reads a key of the vault the client holds; the client answers with exactly one channel response, the value, its absence, or an error, which the server relays to the container.

The server opens this channel when the container’s proxy sends a vault ask on /requests that reads a key. The ask is relayed verbatim; the client’s one answer is relayed back.

• The request. The tag byte 8 followed by the ask in the form the proxy’s /vault/get/{channel} page defines. Request states its form.
• The response. Exactly one channel response and the channel response finish. Response states the sequence.
• The conduit. The server relays the one channel response to the proxy’s /vault/get/{channel} as one message and closes that connection. The server does not read the key or the value, and does not send the ask twice.
• The namespace. The server determines which vault the key belongs to; the ask names no vault.