@ekaone/retry vs fetch

Supported

Not supported

Partial

N/A

Feature	@ekaone/retry	fetch
Retry
Automatic retryRetries failed calls without manual loops	✓ built-in	✗ manual
Max attemptsHard cap on total tries including first call	✓ maxAttempts	✗ none
Exponential backoffDelay grows as baseDelay × 2^attempt	✓ built-in	✗ none
Linear backoffDelay grows linearly per attempt	✓ built-in	✗ none
Fixed backoffConstant delay between every attempt	✓ built-in	✗ none
JitterRandomised delay — prevents thundering herd	✓ full jitter	✗ none
Max delay capUpper bound on computed delay (maxDelayMs)	✓ 30s default	✗ none
Control
shouldRetry predicateSelective retry — only on recoverable errors	✓ per-error	✗ none
AbortSignal supportExternal cancellation mid-retry loop	✓ loop-aware	~ per-request only
Total timeoutCap on entire operation including delays	✓ totalTimeoutMs	✗ none
onError hookCallback fired after each failed attempt	✓ per-attempt	✗ none
Error Handling
RetryError with diagnosticsCarries attempts count, lastError, reason	✓ RetryError	✗ raw error
Failure reasonexhausted / aborted / timeout / rejected	✓ reason field	✗ none
Scope
Works with any async fnDB, SDK calls, agent turns, relay dispatch	✓ any Promise	✗ HTTP only
Anthropic / OpenAI / Gemini SDKWorks with all major LLM SDKs	✓ yes	✗ no
Works with native fetchCan wrap any fetch() call too	✓ yes	✓ yes
Runtime & Package
Zero dependencies	✓ zero	✓ native
Node / Browser / Edge / Bun / Deno	✓ universal	✓ universal
ESM + CJS dual output	✓ tsup	N/A — native

Retry

Automatic retry

Retries failed calls without manual loops

@ekaone/retry✓ built-in

fetch✗ manual

Max attempts

Hard cap on total tries

@ekaone/retry✓ maxAttempts

fetch✗ none

Exponential backoff

Delay grows as baseDelay × 2^attempt

@ekaone/retry✓ built-in

fetch✗ none

Linear & Fixed backoff

Linear or constant delay strategies

@ekaone/retry✓ built-in

fetch✗ none

Jitter

Randomised delay — prevents thundering herd

@ekaone/retry✓ full jitter

fetch✗ none

Max delay cap

Upper bound on computed delay

@ekaone/retry✓ 30s default

fetch✗ none

Control

shouldRetry predicate

Selective retry on recoverable errors only

@ekaone/retry✓ per-error

fetch✗ none

AbortSignal support

External cancellation mid-retry loop

@ekaone/retry✓ loop-aware

fetch~ per-request

Total timeout

Cap on entire operation including delays

@ekaone/retry✓ totalTimeoutMs

fetch✗ none

onError hook

Callback fired after each failed attempt

@ekaone/retry✓ per-attempt

fetch✗ none

Error Handling

RetryError with diagnostics

Carries attempts, lastError, reason

@ekaone/retry✓ RetryError

fetch✗ raw error

Failure reason

exhausted / aborted / timeout / rejected

@ekaone/retry✓ reason field

fetch✗ none

Scope

Works with any async fn

DB, SDK calls, agent turns, relay dispatch

@ekaone/retry✓ any Promise

fetch✗ HTTP only

Anthropic / OpenAI / Gemini

Works with all major LLM SDKs

@ekaone/retry✓ yes

fetch✗ no

Works with native fetch

Can wrap any fetch() call too

@ekaone/retry✓ yes

fetch✓ yes

Runtime & Package

Zero dependencies

@ekaone/retry✓ zero

fetch✓ native

Node / Browser / Edge / Bun / Deno

@ekaone/retry✓ universal

fetch✓ universal

ESM + CJS dual output

@ekaone/retry✓ tsup

fetchN/A — native