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how to store a canvas image to mysql and retrieve it using nodejs
How to Vertical align elements in a div?Make a div fill the height of the remaining screen spaceHow to make an image center (vertically & horizontally) inside a bigger divConvert HTML + CSS to PDF with PHP?How do I give text or an image a transparent background using CSS?How to move an element into another element?How to store Node.js deployment settings/configuration files?How can I update NodeJS and NPM to the next versions?How do I vertically center text with CSS?Is it possible to apply CSS to half of a character?
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I have a div and took a snapshot of that div using canvas and stored canvas image in a variable getcanvas, Now I want to store that canvas image to mysqldatabase using node
jquery html node.js
asked Mar 27 at 5:55
Virat AchugatlaVirat Achugatla
31 bronze badge
add a comment |
I have a div and took a snapshot of that div using canvas and stored canvas image in a variable getcanvas, Now I want to store that canvas image to mysqldatabase using node
jquery html node.js
asked Mar 27 at 5:55
Virat AchugatlaVirat Achugatla
31 bronze badge
1
Pure code-writing requests are off-topic on Stack Overflow — we expect questions here to relate to specific programming problems — but we will happily help you write it yourself! Tell us what you've tried, and where you are stuck. This will also help us answer your question better.
– Stefan Becker
Mar 27 at 6:11
add a comment |
I have a div and took a snapshot of that div using canvas and stored canvas image in a variable getcanvas, Now I want to store that canvas image to mysqldatabase using node
jquery html node.js
asked Mar 27 at 5:55
Virat AchugatlaVirat Achugatla
31 bronze badge
I have a div and took a snapshot of that div using canvas and stored canvas image in a variable getcanvas, Now I want to store that canvas image to mysqldatabase using node
jquery html node.js
jquery html node.js
asked Mar 27 at 5:55
Virat AchugatlaVirat Achugatla
31 bronze badge
asked Mar 27 at 5:55
Virat AchugatlaVirat Achugatla
31 bronze badge
asked Mar 27 at 5:55
Virat AchugatlaVirat Achugatla
31 bronze badge
asked Mar 27 at 5:55
Virat AchugatlaVirat Achugatla
31 bronze badge
asked Mar 27 at 5:55
Virat AchugatlaVirat Achugatla
31 bronze badge
31 bronze badge
1
Pure code-writing requests are off-topic on Stack Overflow — we expect questions here to relate to specific programming problems — but we will happily help you write it yourself! Tell us what you've tried, and where you are stuck. This will also help us answer your question better.
– Stefan Becker
Mar 27 at 6:11
add a comment |
1
Pure code-writing requests are off-topic on Stack Overflow — we expect questions here to relate to specific programming problems — but we will happily help you write it yourself! Tell us what you've tried, and where you are stuck. This will also help us answer your question better.
– Stefan Becker
Mar 27 at 6:11
1
1
Pure code-writing requests are off-topic on Stack Overflow — we expect questions here to relate to specific programming problems — but we will happily help you write it yourself! Tell us what you've tried, and where you are stuck. This will also help us answer your question better.
– Stefan Becker
Mar 27 at 6:11
Pure code-writing requests are off-topic on Stack Overflow — we expect questions here to relate to specific programming problems — but we will happily help you write it yourself! Tell us what you've tried, and where you are stuck. This will also help us answer your question better.
– Stefan Becker
Mar 27 at 6:11
add a comment |
1 Answer
1
active
oldest
votes
Two ways
- save image as dataUrl (i.e. a string).
/* send */
const dataUrl = canvas.toDataURL()
// TODO: post dataUrl to server and save it to mysql
/* get */
// get dataUrl from server
const img = document.createElement('img');
// attach dataUrl to img.src to show it
img.src = dataUrl
- save canvas image as a real image
/* send */
const dataUrl = canvas.toDataURL()
const [memeStr, dataStr] = (dataUrl || '').split(',')
const mime = memeStr
.split(',')[0]
.split(':')[1]
.split(';')[0]
const bstr = atob(dataStr)
const u8arr = new Uint8Array(bstr.length)
for (let i = 0; i < bstr.length; i++)
u8arr[i] = bstr.charCodeAt(i)
const imageFile = new Blob([u8arr], type: mime )
// TODO: you got the image file (by default is a png file)
// send it to the server and store its path in mysql
/* get */
// get imagePath from server
const img = document.createElement('img');
// attach imagePath to img.src to show it
img.src = imagePath
answered Mar 27 at 6:18
troytroy
1727 bronze badges
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Two ways
- save image as dataUrl (i.e. a string).
/* send */
const dataUrl = canvas.toDataURL()
// TODO: post dataUrl to server and save it to mysql
/* get */
// get dataUrl from server
const img = document.createElement('img');
// attach dataUrl to img.src to show it
img.src = dataUrl
- save canvas image as a real image
/* send */
const dataUrl = canvas.toDataURL()
const [memeStr, dataStr] = (dataUrl || '').split(',')
const mime = memeStr
.split(',')[0]
.split(':')[1]
.split(';')[0]
const bstr = atob(dataStr)
const u8arr = new Uint8Array(bstr.length)
for (let i = 0; i < bstr.length; i++)
u8arr[i] = bstr.charCodeAt(i)
const imageFile = new Blob([u8arr], type: mime )
// TODO: you got the image file (by default is a png file)
// send it to the server and store its path in mysql
/* get */
// get imagePath from server
const img = document.createElement('img');
// attach imagePath to img.src to show it
img.src = imagePath
answered Mar 27 at 6:18
troytroy
1727 bronze badges
add a comment |
Two ways
- save image as dataUrl (i.e. a string).
/* send */
const dataUrl = canvas.toDataURL()
// TODO: post dataUrl to server and save it to mysql
/* get */
// get dataUrl from server
const img = document.createElement('img');
// attach dataUrl to img.src to show it
img.src = dataUrl
- save canvas image as a real image
/* send */
const dataUrl = canvas.toDataURL()
const [memeStr, dataStr] = (dataUrl || '').split(',')
const mime = memeStr
.split(',')[0]
.split(':')[1]
.split(';')[0]
const bstr = atob(dataStr)
const u8arr = new Uint8Array(bstr.length)
for (let i = 0; i < bstr.length; i++)
u8arr[i] = bstr.charCodeAt(i)
const imageFile = new Blob([u8arr], type: mime )
// TODO: you got the image file (by default is a png file)
// send it to the server and store its path in mysql
/* get */
// get imagePath from server
const img = document.createElement('img');
// attach imagePath to img.src to show it
img.src = imagePath
answered Mar 27 at 6:18
troytroy
1727 bronze badges
add a comment |
Two ways
- save image as dataUrl (i.e. a string).
/* send */
const dataUrl = canvas.toDataURL()
// TODO: post dataUrl to server and save it to mysql
/* get */
// get dataUrl from server
const img = document.createElement('img');
// attach dataUrl to img.src to show it
img.src = dataUrl
- save canvas image as a real image
/* send */
const dataUrl = canvas.toDataURL()
const [memeStr, dataStr] = (dataUrl || '').split(',')
const mime = memeStr
.split(',')[0]
.split(':')[1]
.split(';')[0]
const bstr = atob(dataStr)
const u8arr = new Uint8Array(bstr.length)
for (let i = 0; i < bstr.length; i++)
u8arr[i] = bstr.charCodeAt(i)
const imageFile = new Blob([u8arr], type: mime )
// TODO: you got the image file (by default is a png file)
// send it to the server and store its path in mysql
/* get */
// get imagePath from server
const img = document.createElement('img');
// attach imagePath to img.src to show it
img.src = imagePath
answered Mar 27 at 6:18
troytroy
1727 bronze badges
Two ways
- save image as dataUrl (i.e. a string).
/* send */
const dataUrl = canvas.toDataURL()
// TODO: post dataUrl to server and save it to mysql
/* get */
// get dataUrl from server
const img = document.createElement('img');
// attach dataUrl to img.src to show it
img.src = dataUrl
- save canvas image as a real image
/* send */
const dataUrl = canvas.toDataURL()
const [memeStr, dataStr] = (dataUrl || '').split(',')
const mime = memeStr
.split(',')[0]
.split(':')[1]
.split(';')[0]
const bstr = atob(dataStr)
const u8arr = new Uint8Array(bstr.length)
for (let i = 0; i < bstr.length; i++)
u8arr[i] = bstr.charCodeAt(i)
const imageFile = new Blob([u8arr], type: mime )
// TODO: you got the image file (by default is a png file)
// send it to the server and store its path in mysql
/* get */
// get imagePath from server
const img = document.createElement('img');
// attach imagePath to img.src to show it
img.src = imagePath
answered Mar 27 at 6:18
troytroy
1727 bronze badges
answered Mar 27 at 6:18
troytroy
1727 bronze badges
answered Mar 27 at 6:18
troytroy
1727 bronze badges
answered Mar 27 at 6:18
troytroy
1727 bronze badges
1727 bronze badges
add a comment |
add a comment |
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Pure code-writing requests are off-topic on Stack Overflow — we expect questions here to relate to specific programming problems — but we will happily help you write it yourself! Tell us what you've tried, and where you are stuck. This will also help us answer your question better.
– Stefan Becker
Mar 27 at 6:11