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fix: preserve candidate metadata during refresh #67

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fix: preserve candidate metadata during refresh #67

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16 changes: 13 additions & 3 deletions crawl.js
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Original file line number Diff line number Diff line change
Expand Up @@ -277,8 +277,11 @@ async function getCurrentCandidates () {
return
}

const prevCandidates = await db.Candidate.find({})
await db.Candidate.remove({})
const smartContractAddress = config.get('blockchain.validatorAddress')
const storedCandidateAddresses = candidates.map(candidate =>
candidate.replace('0x', 'xdc').toLowerCase()
)
const prevCandidates = await db.Candidate.find({ smartContractAddress })
let map = candidates.map(async (candidate) => {
const storedDetails = prevCandidates.find((e) => e.candidate === candidate.replace('0x', 'xdc').toLowerCase())

Expand Down Expand Up @@ -306,7 +309,14 @@ async function getCurrentCandidates () {
await Promise.all(m)
return updateCandidateInfo(candidate, storedLatestSignedBlock, prevStatus)
})
return Promise.all(map).catch(e => logger.info('getCurrentCandidates %s', e))
const result = await Promise.all(map)

await db.Candidate.deleteMany({
smartContractAddress,
candidate: { $nin: storedCandidateAddresses }
})

return result
} catch (e) {
logger.info('getCurrentCandidates2 %s', e)
}
Expand Down