60 lines
1.4 KiB
TypeScript
60 lines
1.4 KiB
TypeScript
import * as functions from 'firebase-functions'
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import * as admin from 'firebase-admin'
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import * as _ from 'lodash'
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import { getValues } from './utils'
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import { Contract } from '../../common/contract'
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import { getProbability } from '../../common/calculate'
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const cache = { lastUpdated: 0, data: '' }
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export const markets = functions
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.runWith({ minInstances: 1 })
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.https.onRequest(async (req, res) => {
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const contracts: Contract[] = await getValues(
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firestore.collection('contracts').orderBy('volume24Hours', 'desc')
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)
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if (!cache.data || Date.now() - cache.lastUpdated > 120 * 1000) {
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const contractsInfo = contracts.map(getContractInfo)
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cache.data = JSON.stringify(contractsInfo)
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cache.lastUpdated = Date.now()
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}
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res.status(200).send(cache.data)
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})
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const getContractInfo = ({
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creatorUsername,
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creatorName,
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createdTime,
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closeTime,
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question,
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description,
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slug,
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pool,
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startPool,
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volume7Days,
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volume24Hours,
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isResolved,
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resolution,
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}: Contract) => {
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return {
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creatorUsername,
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creatorName,
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createdTime,
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closeTime,
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question,
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description,
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url: `https://manifold.markets/${creatorUsername}/${slug}`,
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pool: pool.YES + pool.NO - startPool.YES - startPool.NO,
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probability: getProbability(pool),
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volume7Days,
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volume24Hours,
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isResolved,
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resolution,
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}
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}
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const firestore = admin.firestore()
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