Prankcall NPM | npm.io

prankcall

Call a node.js generator with backoff and other customization

Configure exponential backoff via node-retry options
Call the generator just once or repeatedly based on custom logic
Optionally define another generator to receive results
Sleep between successful calls
Combine with modules like:
- co
- co-request
Observe retry events for logging

Example

Use an async producer to generate input for an async consumer. producer might perform an HTTP request, while consumer stores the result in a database, job queue, etc.

function *producer() {
  var data = yield producerWork();
  // ...
  return data;
}

function *consumer(dataFromProducer) {
  yield consumerWork(dataFromProducer);
  return shouldProducerRunAgain(); // {boolean}
}

co(function *() {
  var prankcall = require('prankcall').create();
  yield prankcall
    .sleep(1500) // Wait 1.5s after each successful `producer` call
    .retry({
      retries: 5,
      factor: 3,
      minTimeout: 1 * 1000,
      maxTimeout: 60 * 1000,
      randomize: true
    })
    .recv(consumer);
    .send(producer);
})();

See more examples.