webtasks/webtask-medium.js

109 lines
3.1 KiB
JavaScript

'use strict' // eslint-disable-line
const express = require('express')
const request = require('request')
const webtask = require('webtask-tools')
const app = express()
app.get('/', (req, res) => {
res.status(400).send('Please enter a username as a parameter')
})
app.get('/:username', (req, res) => {
const url = `https://medium.com/${req.params.username}/?format=json`
request(url, (error, response) => {
const prefix = '])}while(1);</x>'
if (!response.body.includes(prefix)) {
res.status(500).send({
success: false,
reason: 'Failed getting posts from Medium.'
})
}
const json = JSON.parse(response.body.replace(prefix, ''))
let posts
if (json.payload.posts) {
({ posts } = json.payload.posts)
}
if (json.payload.references.Post) {
posts = Object.keys(json.payload.references.Post).map(
key => json.payload.references.Post[key]
)
}
const parsedPosts = []
let holder = {}
if (error) {
res.status(error.status).send({ success: false })
}
for (let i = 0; i < posts.length; i++) {
holder.id = posts[i].id
holder.date = posts[i].firstPublishedAt
holder.readingTime = posts[i].virtuals.readingTime
holder.title = posts[i].title
holder.subtitle = posts[i].virtuals.subtitle
holder.imageUrl = `https://cdn-images-1.medium.com/max/600/${posts[i].virtuals.previewImage.imageId}`
holder.postUrl = `https://medium.com/${req.params.username}/${posts[i].id}`
parsedPosts.push(holder)
holder = {}
}
res.send(parsedPosts)
})
})
app.get('/:username/raw', (req, res) => {
const url = `https://medium.com/${req.params.username}/latest?format=json`
request(url, (error, response) => {
const json = JSON.parse(response.body.replace('])}while(1);</x>', ''))
const { posts } = json.payload
if (error) return
res.send(posts)
})
})
app.get('/:username/followers', (req, res) => {
const url = `https://medium.com/${req.params.username}?format=json`
request(url, (error, response) => {
const json = JSON.parse(response.body.replace('])}while(1);</x>', ''))
const { collection } = json.payload
if (error) return
res.send(`{ "followers": ${collection.metadata.followerCount} }`)
})
})
app.get('/:username/categories', (req, res) => {
const url = `https://medium.com/${req.params.username}?format=json`
request(url, (error, response) => {
const json = JSON.parse(response.body.replace('])}while(1);</x>', ''))
const { navItems } = json.payload.collection
const parsedCategories = []
let holder = {}
if (error) return
for (let i = 0; i < navItems.length; i++) {
holder.title = navItems[i].title
holder.url = navItems[i].url
parsedCategories.push(holder)
holder = {}
}
res.send(parsedCategories)
})
})
module.exports = webtask.fromExpress(app)