saucepan

saucepan helps you to store your uploads.

Installation

npm install --save saucepan

Creating an instance

let saucepan = require('saucepan');
let instance = saucepan(options);

options

saucepan(options) accepts an object with following parameters

Key	Description	Type	optional
buffer	Buffer representing the file	Buffer	false
original	Set to false if you don't want to store the original image	Boolean	true defaults:true
sizes	Represents the sizes of the image. sizes is an array of objects having two keys path and xy. path is a string that will be concatnated to the resized images and xy indicated the height and width of the image.	Array	true

Usage

Storing to server directory

let express = require('express');
let multer = require('multer');
let saucepan = require('saucepan');

let app = express();
var upload = multer();

app.post('/upload', upload.single('img'), (req, res) => {
  if(req.file){
    let options = {
      buffer:req.file.buffer,
    }
    
    saucepan(options).storeToLocal('public/images').then(function(result){
      return res.send(result);
    }).catch(function(err){
      console.log("Error");
    });	
  }
  
});


app.listen(8000);

method storeToLocal(path) accepts a path in the server directory. If the path doesn't exists it'll throw an error.

Storing to S3 bucket

let express = require('express');
let multer = require('multer');
let saucepan = require('saucepan');

let app = express();
var upload = multer();

app.post('/upload', upload.single('img'), (req, res) => {
  if(req.file){
    let options = {
      buffer:req.file.buffer,
    }
    
  let s3Options = {
    bucket:"BUCKET-NAME",
    accessKeyId:"ACCESSKEYID",
    secretAccessKey:"SECRETACCESSKEY",
  };
  saucepan(options).storeToS3(s3Options).then(function(results){
    console.log(results);
  }).catch(function(err){
    console.log(err)
  });
 }
  
});

app.listen(8000);

options

method storeToS3(S3options) will accept an object with following parameters

Key	Description	Type	optional
bucket	S3 bucket name	String	false
accessKeyId	S3 access key	String	false
secretAccessKey	S3 secret access key	String	false
acl	S3 ACL	String	true;defaults:'public-read'

Resizing image before storing

//imports
//setup

  let options = {
    buffer:req.file.buffer,
    original:false,//donot store original image
    sizes:[{
      path:'large',
      xy:800
    },{
      path:'medium',
      xy:400
    },{
      path:'small',
      xy:60
    }]
  }
    
  let s3Options = {
    bucket:"BUCKET-NAME",
    accessKeyId:"ACCESSKEYID",
    secretAccessKey:"SECRETACCESSKEY",
  };
  saucepan(options).storeToS3(s3Options).then(function(results){
    console.log(results);
    
    /*[ { ETag: '"cdb84f413588cededvdre2b"',
          VersionId: 'mMdoR3iPcl1csAjY7oRA4O7F.wJ3BcMV',
          path: 'gvK6YAoc0-large.png' },
        { ETag: '"3b964a1e0ff8988dea121e1170321"',
          VersionId: 'D63K2Qa_pI9pLRwTy4Rxa_b6o9Kr54WM',
          path: 'gvK6YAoc0-medium.png' },
        { ETag: '"e7211836192739f64772b23de33cd579"',
          VersionId: 'gXNUNLg8QIi5TG2.nfdDU9al_xTX0SAn',
          path: 'gvK6YAoc0-small.png' } 
      ]*/

  }).catch(function(err){
    console.log(err)
  });