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KafkaConsumer.js
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KafkaConsumer.js
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import Kafka from 'node-rdkafka';
import fetch from 'node-fetch';
import {config} from './config.js'
import { recieve_order } from './app.js';
const kafkaConf = config.kafkaConf
const topic = config.kafka_topic;
const topics = [topic];
const consumer = new Kafka.KafkaConsumer(kafkaConf, {
"auto.offset.reset": "beginning"
});
async function connectKafka()
{
consumer.on("error", async function(err) {
console.error(err);
});
consumer.on("ready", async function(arg) {
console.log(`Consumer ${arg.name} ready`);
consumer.subscribe(topics);
consumer.consume();
});
consumer.on("data", async function(m) {
// fetch('http://localhost:3000/order' ,{method: "POST", // *GET, POST, PUT, DELETE, etc.
// mode: "cors", // no-cors, *cors, same-origin
// cache: "no-cache", // *default, no-cache, reload, force-cache, only-if-cached
// credentials: "same-origin", // include, *same-origin, omit
// headers: {
// "Content-Type": "application/json",
// // 'Content-Type': 'application/x-www-form-urlencoded',
// },
// redirect: "follow", // manual, *follow, error
// referrerPolicy: "no-referrer", // no-referrer, *no-referrer-when-downgrade, origin, origin-when-cross-origin, same-origin, strict-origin, strict-origin-when-cross-origin, unsafe-url
// body: m.value.toString(), // body data type must match "Content-Type" header
// });
recieve_order(m.value.toString())
consumer.commit(m);
console.log(m.value.toString());
})
consumer.on("disconnected", async function(arg) {
process.exit();
});
consumer.on('event.error', async function(err) {
console.error(err);
process.exit(1);
});
consumer.on('event.log', async function(log) {
console.log(log);
});
consumer.connect();
}
export{connectKafka}