Skip to content

Easherma/image building backend #2068

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
easherma wants to merge 2 commits into
base: main
Choose a base branch
from
Draft

Easherma/image building backend #2068

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
a1120cd
feat: example endpoint to draw
easherma Sep 15, 2020
43680bd
feat: dumb example with clock
easherma Oct 6, 2020
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
42 changes: 42 additions & 0 deletions app/api_routes.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ const bodyParser = require('body-parser')
const cors = require('cors')
const resources = require('./resources')
const jwtCheck = require('./authentication')

/**
* @swagger
*
Expand Down Expand Up @@ -880,6 +881,47 @@ routes.get('/api/v1/votes', cors(), jwtCheck, resources.v1.votes.get)
routes.post('/api/v1/votes', cors(), jwtCheck, resources.v1.votes.post)
routes.put('/api/v1/votes', cors(), jwtCheck, resources.v1.votes.put)

routes.get('/api/streets/draw', (req, res) => {
const { createCanvas } = require('canvas')

const width = 500
const height = 500

const canvas = createCanvas(width, height)
const context = canvas.getContext('2d')
let radius = canvas.height / 2
context.translate(radius, radius)
radius = radius * 0.9

function drawFace (ctx, radius) {
var grad

ctx.beginPath()
ctx.arc(0, 0, radius, 0, 2 * Math.PI)
ctx.fillStyle = 'white'
ctx.fill()

grad = ctx.createRadialGradient(0, 0, radius * 0.95, 0, 0, radius * 1.05)
grad.addColorStop(0, '#333')
grad.addColorStop(0.5, 'white')
grad.addColorStop(1, '#333')
ctx.strokeStyle = grad
ctx.lineWidth = radius * 0.1
ctx.stroke()

ctx.beginPath()
ctx.arc(0, 0, radius * 0.1, 0, 2 * Math.PI)
ctx.fillStyle = '#333'
ctx.fill()
}

drawFace(context, radius)

// stream out response
res.setHeader('Content-Type', 'image/png')
canvas.pngStream().pipe(res)
})

// Catch all for all broken api paths, direct to 404 response.
routes.get('/api/*', (req, res) => {
res
Expand Down
Loading