The Alert-to-Broker Bridge

Your alert fired. Then nothing happened.

Or worse, it happened twice, and you woke up holding double the position you chose.

This is the piece between "TradingView fired" and "a server acted on it, exactly once." It is where most people building this stall, and it is the least interesting part of the job, which is exactly why nobody writes it carefully.

What it does

Receives a TradingView alert, proves it is genuine, throws away duplicates, and writes it down somewhere that survives a crash.

• The same signal can never open two positions, because the alert id is the database key. If the insert did nothing, we have seen this alert before. No lock, no race, no second cache to keep in sync.
• A restart mid-signal does not lose the queue, because it is on disk rather than in memory. A lost exit signal is a position that never closes.
• A slow broker cannot make you miss an alert. TradingView gives you three seconds and then gives up. The endpoint acknowledges in about two milliseconds and does everything slow on a worker nobody is waiting on.
• You can watch it for a week before any money is involved. Trading is off by default, so out of the box it records and never touches a broker. That is a complete and useful thing on its own.
• You can see what each test is defending against, not just that it is green. 91 of them, no network, no credentials, no broker account.

What is in the download

The Pine strategy that emits the alert, the server that receives it, the full test suite, and a walkthrough that gets you from nothing to a real alert from your own chart landing in your own log. No server, no domain, no certificate and no money required. Budget an hour.

What this is not

I would rather you skip this than buy it expecting the wrong thing.

• It is not a strategy. The Pine script included is a moving average crossover, the least special signal in existence. That is on purpose. This is the plumbing between a signal and a broker, and anything resembling an edge would be a claim I cannot make.
• It has never traded real money. Everything here has been run on paper. The broker adapter has been exercised end to end against a paper account and never against a live one.
• It will not make you money. It removes one specific reason automation fails: signals arriving twice, arriving late, or vanishing when a process restarts.
• You will be at a keyboard. This is code you run, not a service you log into.

Not sure what you are building yet?

This is one component, and it assumes you already know where it fits. If you want the whole path mapped first, in about an hour, start with the roadmap at $5.99. It contains no code, which is exactly why this exists.

Why it costs nine dollars

Because it took two evenings and four real bugs to get right, and because I would rather you owned it than read about it. The reasoning behind every decision, and the setup that builds the rest of the system for your strategy instead of a generic one, is what I actually sell.

If it does not get you a real alert landing in your own log, tell me and I will refund it. No form, no questions.