部署錯誤 heroku desc=“沒有 web 進程正在運行”

Question

我正在將我的應用程序部署到 heroku 它是用 Node.js 編寫的，主腳本是 main.js 看起來像這樣

var fs = require('fs');
var file = fs.readFileSync('count.json');
var Words = JSON.parse(file);

const express = require('express');
const app = express();
app.listen(process.env.PORT || 3000, () => console.log('we are listeining'));
app.use(express.static('public'));
app.use(express.json({ limit : '1mb' })); 


app.get('/add/:word', addWord);

function addWord(request, response) {
  var data = request.params;
  var word = data.word;
  var reply;
  var found = false;
  for (i = 0; i < Words.length; i++){
    if (Words[i].type == word){
      Words[i].count++;
      found = true;
      break;
    }
  }

if (!found) {
  Words.push({"type": word , "count": 1});
}

  var x = JSON.stringify(Words, null, 2);
  fs.writeFile('count.json', x, finished);

  function finished(){
    console.log('Yay')
  }
    /* 
    console.log(Words[word]); */

/*     response.send(reply); */
  }

我也部署了 Procfile

worker: node main.js

但仍然有這個問題，這是 heroku 的日志

2020-05-09T22:56:21.244885+00:00 heroku[worker.1]: State changed from starting to up
2020-05-09T22:56:24.487998+00:00 app[worker.1]: we are listeining
2020-05-09T22:56:34.768703+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/" host=bss-ticketmaker.herokuapp.com request_id=7e7b9f8d-6ffb-4d93-9691-c9024f1a576a fwd="156.205.74.140" dyno= connect= service= status=503 bytes= protocol=https
2020-05-09T22:56:36.265759+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=bss-ticketmaker.herokuapp.com request_id=8d817eeb-c233-44b0-ba76-be54907533a6 fwd="156.205.74.140" dyno= connect= service= status=503 bytes= protocol=https

Answer 1

您正在運行 web 服務器，因此在Procfile集中web而不是worker 。

web: node main.js

Heroku 會將 HTTP 請求路由到以web名稱開頭的進程。