| 33 | } |
| 34 | |
| 35 | export function delay(attempt: number, error?: SessionV1.APIError) { |
| 36 | if (error) { |
| 37 | const headers = error.data.responseHeaders |
| 38 | if (headers) { |
| 39 | const retryAfterMs = headers["retry-after-ms"] |
| 40 | if (retryAfterMs) { |
| 41 | const parsedMs = Number.parseFloat(retryAfterMs) |
| 42 | if (!Number.isNaN(parsedMs)) { |
| 43 | return cap(parsedMs) |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | const retryAfter = headers["retry-after"] |
| 48 | if (retryAfter) { |
| 49 | const parsedSeconds = Number.parseFloat(retryAfter) |
| 50 | if (!Number.isNaN(parsedSeconds)) { |
| 51 | // convert seconds to milliseconds |
| 52 | return cap(Math.ceil(parsedSeconds * 1000)) |
| 53 | } |
| 54 | // Try parsing as HTTP date format |
| 55 | const parsed = Date.parse(retryAfter) - Date.now() |
| 56 | if (!Number.isNaN(parsed) && parsed > 0) { |
| 57 | return cap(Math.ceil(parsed)) |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | return cap(RETRY_INITIAL_DELAY * Math.pow(RETRY_BACKOFF_FACTOR, attempt - 1)) |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | return cap(Math.min(RETRY_INITIAL_DELAY * Math.pow(RETRY_BACKOFF_FACTOR, attempt - 1), RETRY_MAX_DELAY_NO_HEADERS)) |
| 66 | } |
| 67 | |
| 68 | export function retryable(error: Err, provider: string) { |
| 69 | // context overflow errors should not be retried |