Joeven — Learn Autonomous AI Agents

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RETRY_OK = {429, 500, "timeout"}
NO_RETRY = {400, 401}
waits = [0.5, 1.0, 2.0]
max_tries = 3

def request_with_retry(script):
    last = None
    n = min(max_tries, len(script))
    for attempt in range(1, n + 1):
        status = script[attempt - 1]
        print("attempt", attempt, "status", status)
        last = status
        if status == 200:
            print("success")
            return status
        if status in NO_RETRY:
            print("no retry")
            return status
        if status in RETRY_OK:
            if attempt == max_tries:
                print("gave up")
                return status
            wait = waits[attempt - 1]
            print("would wait", wait, "seconds")
            continue
        print("unknown status, stop")
        return status
    return last

print("--- 429 then 200 ---")
print("end", request_with_retry([429, 200]))
print("--- 400 ---")
print("end", request_with_retry([400, 200]))
print("--- three timeouts ---")
print("end", request_with_retry(["timeout", "timeout", "timeout"]))

def run_circuit(calls, fail_limit=3):
    fails = 0
    open_ = False
    for i, status in enumerate(calls, start=1):
        if open_:
            print("circuit open, skip call", i)
            continue
        print("call", i, "status", status)
        if status == 200:
            fails = 0
            print("ok, reset fails")
        else:
            fails += 1
            print("fails in a row", fails)
            if fails >= fail_limit:
                open_ = True
                print("circuit open: stop calling")
    return open_

print("--- circuit ---")
print("open?", run_circuit([500, 500, 500, 200, 200]))

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