我如何用node.js的twit发布带有文本的图像

Question

what i want to do is tweet with node.js's twit an image with text(in this case 1637458 or 2637458), how do i do that?

If anyone is willing to help, thank you

My code:

var Twit = require('twit')

var fs = require('fs'),
path = require('path'),
Twit = require('twit'),
config = require(path.join(__dirname, 'config.js'));

var T = new Twit(config);
function random_from_array(images){
return images[Math.floor(Math.random() * images.length)];
}
var P = ['1','2'];
var P1 = P[Math.floor(Math.random() * P.length)];
var L = ['3'];
var L1 = L[Math.floor(Math.random() * L.length)];
var P3 = ['4'];
var P2 = P3[Math.floor(Math.random() * P3.length)];
var E = ['5'];
var E1 = E[Math.floor(Math.random() * E.length)];
frase = P1 + ' 6 ' + L1 + ' 7 '+ P2 + E1 + '8'
function upload_random_image(images){
console.log('Opening an image...');
var image_path = path.join(__dirname, '/images/' + 
random_from_array(images)),
  b64content = fs.readFileSync(image_path, { encoding: 'base64' });

console.log('Uploading an image...');
T.post('statuses/update', frase, function(err, data, response) {
if (err){
  console.log('ERROR:');
  console.log(err);
}
else{
  console.log('Image uploaded!');
  console.log('Now tweeting it...');
  }});
  T.post('media/upload', { media_data: b64content }, function (err, data, 
  response) {
if (err){
  console.log('ERROR:');
  console.log(err);
}
else{
  console.log('Image uploaded!');
  console.log('Now tweeting it...');

  T.post('statuses/update', {
    media_ids: new Array(data.media_id_string)
  },
    function(err, data, response) {
      if (err){
        console.log('ERROR:');
        console.log(err);
      }
      else{
        console.log('Posted an image!');
      }
    }
  );
}
});
 }
  fs.readdir(__dirname + '/images', function(err, files) {
    if (err){
    console.log(err);
  }
   else{
var images = [];
files.forEach(function(f) {
  images.push(f);
});

setInterval(function(){
  upload_random_image(images);
}, 1000*60*5);

} });

Answer 1

10 month later... ;-) Actually I am not 100% sure what you want to achieve with the numbers (1637458 and 2637458) and the P1, L1 etc. but this code is basically taken from twits github page .

I added some basic functionality: Random pick images from the image folder. This can be refined, currently the number of images needs to be the same as defined in the variable number . And a myMessage variable for your tweet.

All of this is put into a function which is called every 5 Minutes. Please check the comments in the code to see how the image and status are combined. In general you first upload the image and if this was successful, the image is attached to the tweet and posted.

Please also check How to create a Minimal, Complete, and Verifiable example which often helps to get more and better answers.

var Twit = require('twit');
var config = require('./config');
const fs = require('fs');

T = new Twit(config);

var number = 10; // Number of images, exchange with your number of images
var waitTime = 5 * 60 * 1000 // wait 5 minutes or 300000 ms

function postRandomImage(){

  var myMessage = '1637458'; // your message

  // access and assign a random image in the images folder
  var b64content = fs.readFileSync('./images/' +  Math.floor((Math.random() * number) + 1) + '.jpg', { encoding: 'base64' })

  // first we must post the media to Twitter then the alt text
  T.post('media/upload', { media_data: b64content }, function (err, data, response) {

    var mediaIdStr = data.media_id_string;
    var altText = "Here can go your optional images alt text.";
    var meta_params = { media_id: mediaIdStr, alt_text: { text: altText } }

    T.post('media/metadata/create', meta_params, function (err, data, response) {
      if (!err) {
        // now we can reference the media and post a tweet (media will attach to the tweet)
        var params = { status: myMessage, media_ids: [mediaIdStr] }

        T.post('statuses/update', params, function (err, data , response) {
          // check the response in the console
          console.log(data)
        })
      }
    })
  })
}
// first post without delay
postRandomImage();
// timer calls the function every 5 minutes
setInterval(postRandomImage, waitTime);