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https://github.com/d0zingcat/gocryptotrader.git
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56e535001c
Refactoring the timeout retries into a more general 'retry policy' with support for retrying on HTTP 429 (Too Many Requests) and other responses with a `Retry-After` header The delay between requests is controlled by a combination of a 'backoff' (currently only a simple linear backoff), and honouring the `Retry-After` value (longest delay wins) This makes the 'rate limiter' an optional argument as well, removing the use of `nil` when one isn't supplied Signed-off-by: David Ackroyd <daveo.ackroyd@gmail.com>
23 lines
496 B
Go
23 lines
496 B
Go
package request
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import (
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"time"
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)
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// DefaultBackoff is a default strategy for backoff after a retryable request failure.
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func DefaultBackoff() Backoff {
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return LinearBackoff(100*time.Millisecond, time.Second)
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}
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// LinearBackoff applies a backoff increasing by a base amount with each retry capped at a maximum duration.
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func LinearBackoff(base, max time.Duration) Backoff {
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return func(n int) time.Duration {
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d := base * time.Duration(n)
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if d > max {
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return max
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}
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return d
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}
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}
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