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locator-image-utility

v6.1.0

Published

Utility module for handling all image related operation

Downloads

9

Readme

locator-image-utility

Utility module for providing useful operations regarding handling images.

Install

include it in your project

npm install locator-image-utility

Usage

Regex

// access various regexes
var regex = require('locator-image-utility').regex

regex.imageContentType.match('image/png') // or jpg/jpeg

regex.imageExtension.match('png') //or jpg/jpeg

regex.routePrefix.match('/api/v1/trips/') // everything within four slashes

Validation

// get the validation
var validation = require('locator-image-utility').validation

    // route with image payload
    ...
    payload: validation.basicImageSchema,
    ...

Image Processing

// create a image processing unit
var imageUtil = require('locator-image-utility').image

    // route with image payload
    ...
    var imageProcessor = imageUtil.processor(request); // request must be a request object from hapi
    
    // will return a useful object containing information about the file
    file = imageProcessor.createFileInformation(nameOfFile);
    
    // will return an object used for saving the picture to couchdb
    imageProcessor.getAttachmentData(file.filename); 
    
    // will crop the stream according to the values in the **request**. The parameters are used for resizing
    stream = imageProcessor.createCroppedStream(100, 100); 
    
    stream.pipe(someStreamFromDatabase);
    ...

Sizes

The following sizes are used to request a picture with the query ```?size=````

 - max:
    size: { x: 1400, y: 819}
    name: 'max'
 - mid :
    size: {x: 700, y: 410}
    name: 'mid'

 - small:
    size: {x: 400,y: 234}
    name: 'small'

 - user:
    size: {x: 150,y: 150}
    name: 'user'

 - userThumb:
    size: {x: 50,y: 50},
    name: 'userThumb'