LemonAi.
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Shared retry utilities for AI provider implementations.
Provides exponential backoff with jitter, retryable HTTP status detection, transport error classification, and error text pattern matching.
Summary
Functions
Compute exponential backoff delay with jitter.
Extract a provider retry delay from headers or error text.
Check whether an error text matches known retryable patterns via regex.
Check whether an HTTP status code is retryable.
Check whether a transport error is retryable.
Check whether a transport reason term is retryable.
Functions
@spec exponential_backoff_with_jitter(pos_integer(), non_neg_integer()) :: pos_integer()
Compute exponential backoff delay with jitter.
Returns a random delay between base * 2^attempt / 2 and base * 2^attempt.
@spec extract_retry_delay_ms(String.t(), map() | list()) :: non_neg_integer() | nil
Extract a provider retry delay from headers or error text.
Returns milliseconds with a 1s buffer, matching the existing provider retry
behavior for retry-after, x-ratelimit-reset-after, retryDelay, and
common text retry hints.
Check whether an error text matches known retryable patterns via regex.
Matches: rate limit, overloaded, service unavailable, upstream connect, connection refused, resource exhausted, other side closed.
Check whether an HTTP status code is retryable.
Uses the comprehensive default list when called with one argument. Pass an explicit list of statuses as second argument to override.
Check whether a transport error is retryable.
Accepts a Req.TransportError struct or a raw reason term.
Check whether a transport reason term is retryable.