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EtcdOperations

tryaudex_core::ha

Struct EtcdOperations 

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pub struct EtcdOperations;
Expand description

Etcd key-value operations for HA (alternative to Redis).

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impl EtcdOperations

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pub fn acquire_lock_endpoint() -> &'static str

Leader election uses etcd leases with keep-alive. PUT key value –lease=LEASE_ID

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pub fn grant_lease_endpoint() -> &'static str

Create a lease.

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pub fn keepalive_endpoint() -> &'static str

Keep lease alive.

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pub fn watch_endpoint() -> &'static str

Watch for leader changes.

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pub fn lease_grant_body(ttl: u64) -> String

Format a lease grant request body.

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pub fn txn_create_body(key: &str, value: &str, lease_id: u64) -> String

Format a put-if-not-exists request (using transactions).

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