curl-retry.sh

#!/bin/bash

URL="${1:-https://api.example.com/endpoint}"

OUTPUT_FILE="${2:-}"

CURL_CMD="curl \
  --retry 3 \
  --retry-delay 2 \
  --retry-max-time 30 \
  --retry-all-errors \
  --max-time 10 \
  --connect-timeout 5 \
  --location \
  --fail \
  --silent \
  --show-error"

if [ -n "$OUTPUT_FILE" ]; then
    CURL_CMD="$CURL_CMD --output \"$OUTPUT_FILE\""
fi

CURL_CMD="$CURL_CMD \"$URL\""

echo "Fetching: $URL"
if eval $CURL_CMD; then
    echo "Success"
    exit 0
else
    EXIT_CODE=$?
    echo "Failed after retries. Exit code: $EXIT_CODE" >&2
    exit $EXIT_CODE
fi