edge-react-gui/scripts/ratesCacheReplay.ts at develop · EdgeApp/edge-react-gui · GitHub

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// ---------------------------------------------------------------------------

// ratesCacheReplay

// Replays a logged exchange-rate cache blob (the `***Exchange Rate Cache***`

// section captured in the support logs, or any JSON matching that shape)

// against the rates server: it rebuilds the `v3/rates` queries the app would

// have sent for the pairs in the blob, sends them, and reports what the server

// returns for every requested pair — so a rate problem seen in a user's logs

// can be reproduced and inspected directly.

// Query construction mirrors `convertToRatesParams` in

// `src/actions/ExchangeRateActions.ts` — keep the two in sync. Only the

// subscribed pairs present in the blob (`cryptoPairs` / `fiatPairs`) are

// replayed; wallet-derived and historical pairs the app adds at runtime are

// not part of the cache and so are not reproduced here.

// Each requested pair is reported as one of:

// <rate> the server returned a rate

// NO RATE the server returned the pair but declined to price it

// MISSING the server omitted the pair from its response entirely

// Usage:

// node -r sucrase/register scripts/ratesCacheReplay.ts <blob.json>

// pbpaste | node -r sucrase/register scripts/ratesCacheReplay.ts

// node -r sucrase/register scripts/ratesCacheReplay.ts <blob.json> --server https://rates4.edge.app

// node -r sucrase/register scripts/ratesCacheReplay.ts <blob.json> --dry-run

// Input may be the bare cache JSON or a log excerpt containing it — the first

// complete JSON object in the text is used. `--server` picks which rates host

// to hit (default rates3; point it at rates4 to compare hosts). `--dry-run`

// prints the query bodies without sending them.

// ---------------------------------------------------------------------------

import * as fs from 'fs'

// Mirrors RATES_SERVER_MAX_QUERY_SIZE in ExchangeRateActions.ts:

const RATES_SERVER_MAX_QUERY_SIZE = 100

// Default v3 rate server (see RATES_SERVERS in src/util/network.ts):

const DEFAULT_RATES_SERVER = 'https://rates3.edge.app'

// Mirrors removeIsoPrefix in src/util/utils.ts:

const removeIsoPrefix = (currencyCode: string): string =>

currencyCode.replace('iso:', '')

interface CryptoAsset {

pluginId: string

tokenId?: string | null

}

interface CryptoFiatPair {

asset: CryptoAsset

targetFiat: string

isoDate?: string

expiration: number

}

interface FiatFiatPair {

fiatCode: string

targetFiat: string

isoDate?: string

expiration: number

}

interface RateCacheBlob {

cryptoPairs?: CryptoFiatPair[]

fiatPairs?: FiatFiatPair[]

}

interface RatesQuery {

targetFiat: string

crypto: Array<{ isoDate: string; asset: CryptoAsset }>

fiat: Array<{ isoDate: string; fiatCode: string }>

}

interface RatesResponse {

crypto?: Array<{ asset?: CryptoAsset; rate?: number | null }>

fiat?: Array<{ fiatCode?: string; rate?: number | null }>

}

type Outcome = 'resolved' | 'no-rate' | 'missing'

interface PairResult {

label: string

outcome: Outcome

rate?: number | null

}

/** Identity for matching a response entry back to the pair we asked for. */

const cryptoKey = (asset: CryptoAsset): string =>

`${asset.pluginId}:${asset.tokenId ?? ''}`

/**

* Group the cached pairs by targetFiat and chunk them into query bodies,

* exactly as convertToRatesParams does in the app.

function cacheToQueries(blob: RateCacheBlob, isoNow: string): RatesQuery[] {

const cryptoPairs = blob.cryptoPairs ?? []

const fiatPairs = blob.fiatPairs ?? []

const grouped = new Map<

string,

{ crypto: CryptoFiatPair[]; fiat: FiatFiatPair[] }

>()

const bucket = (

targetFiat: string

): { crypto: CryptoFiatPair[]; fiat: FiatFiatPair[] } => {

let entry = grouped.get(targetFiat)

if (entry == null) {

entry = { crypto: [], fiat: [] }

grouped.set(targetFiat, entry)

}

return entry

}

for (const pair of cryptoPairs) bucket(pair.targetFiat).crypto.push(pair)

for (const pair of fiatPairs) bucket(pair.targetFiat).fiat.push(pair)

const queries: RatesQuery[] = []

for (const [targetFiat, { crypto, fiat }] of grouped.entries()) {

const remainingCrypto = [...crypto]

const remainingFiat = [...fiat]

while (remainingCrypto.length > 0 || remainingFiat.length > 0) {

const cryptoChunk = remainingCrypto.splice(0, RATES_SERVER_MAX_QUERY_SIZE)

const fiatChunk = remainingFiat.splice(0, RATES_SERVER_MAX_QUERY_SIZE)

queries.push({

targetFiat: removeIsoPrefix(targetFiat),

crypto: cryptoChunk.map(pair => ({

isoDate:

pair.isoDate == null

? isoNow

: new Date(pair.isoDate).toISOString(),

asset: pair.asset

})),

fiat: fiatChunk.map(pair => ({

isoDate:

pair.isoDate == null

? isoNow

: new Date(pair.isoDate).toISOString(),

fiatCode: removeIsoPrefix(pair.fiatCode)

}))

})

}

return queries

}

/**

* Pull the first complete JSON object out of arbitrary text, so a pasted log

* excerpt (with surrounding lines) works as well as bare JSON.

function extractFirstJsonObject(text: string): string {

const start = text.indexOf('{')

if (start < 0) throw new Error('No JSON object found in input')

let depth = 0

let inString = false

let escaped = false

for (let i = start; i < text.length; i++) {

const ch = text[i]

if (inString) {

if (escaped) escaped = false

else if (ch === '\\') escaped = true

else if (ch === '"') inString = false

continue

}

if (ch === '"') inString = true

else if (ch === '{') depth++

else if (ch === '}') {

depth--

if (depth === 0) return text.slice(start, i + 1)

}

throw new Error('Unbalanced JSON object in input')

}

/**

* Match every pair we asked for against what the server actually returned.

function matchResults(

query: RatesQuery,

response: RatesResponse

): PairResult[] {

const cryptoByKey = new Map<string, { rate?: number | null }>()

for (const entry of response.crypto ?? []) {

if (entry.asset != null) cryptoByKey.set(cryptoKey(entry.asset), entry)

}

const fiatByCode = new Map<string, { rate?: number | null }>()

for (const entry of response.fiat ?? []) {

if (entry.fiatCode != null) fiatByCode.set(entry.fiatCode, entry)

}

const results: PairResult[] = []

for (const requested of query.crypto) {

const label =

requested.asset.tokenId == null

? requested.asset.pluginId

: `${requested.asset.pluginId}:${requested.asset.tokenId}`

const found = cryptoByKey.get(cryptoKey(requested.asset))

if (found == null) results.push({ label, outcome: 'missing' })

else if (found.rate == null) results.push({ label, outcome: 'no-rate' })

else results.push({ label, outcome: 'resolved', rate: found.rate })

}

for (const requested of query.fiat) {

const label = `${requested.fiatCode} (fiat)`

const found = fiatByCode.get(requested.fiatCode)

if (found == null) results.push({ label, outcome: 'missing' })

else if (found.rate == null) results.push({ label, outcome: 'no-rate' })

else results.push({ label, outcome: 'resolved', rate: found.rate })

}

return results

}

function printResults(results: PairResult[]): void {

const width = results.reduce((max, r) => Math.max(max, r.label.length), 0)

for (const result of results) {

const value =

result.outcome === 'resolved'

? String(result.rate)

: result.outcome.toUpperCase()

console.log(` ${result.label.padEnd(width)} ${value}`)

}

async function main(): Promise<void> {

const argv = process.argv.slice(2)

let server = DEFAULT_RATES_SERVER

let dryRun = false

let file: string | undefined

for (let i = 0; i < argv.length; i++) {

const arg = argv[i]

if (arg === '--dry-run') dryRun = true

else if (arg === '--server') server = argv[++i]

else if (!arg.startsWith('--')) file = arg

}

const raw =

file != null && file !== '-'

? fs.readFileSync(file, 'utf8')

: fs.readFileSync(0, 'utf8')

const blob = JSON.parse(extractFirstJsonObject(raw)) as RateCacheBlob

const queries = cacheToQueries(blob, new Date().toISOString())

const cryptoCount = blob.cryptoPairs?.length ?? 0

const fiatCount = blob.fiatPairs?.length ?? 0

console.log(

`${queries.length} quer${

queries.length === 1 ? 'y' : 'ies'

} from ${cryptoCount} crypto + ${fiatCount} fiat cached pairs`

)

if (dryRun) {

for (const query of queries) console.log(JSON.stringify(query))

return

}

const totals = { resolved: 0, 'no-rate': 0, missing: 0 }

let failedQueries = 0

for (const [index, query] of queries.entries()) {

console.log(

`\nquery ${index} targetFiat=${query.targetFiat} ${query.crypto.length} crypto + ${query.fiat.length} fiat -> ${server}/v3/rates`

)

const started = Date.now()

let response

try {

response = await fetch(`${server}/v3/rates`, {

method: 'POST',

headers: { 'Content-Type': 'application/json' },

body: JSON.stringify(query)

})

} catch (error) {

failedQueries++

console.log(` request failed: ${String(error)}`)

continue

}

const elapsed = Date.now() - started

const text = await response.text()

if (!response.ok) {

failedQueries++

console.log(

` HTTP ${response.status} (${elapsed}ms): ${text.slice(0, 300)}`

)

continue

}

let parsed: RatesResponse

try {

parsed = JSON.parse(text)

} catch (error) {

failedQueries++

console.log(

` HTTP 200 (${elapsed}ms) but unparseable body: ${text.slice(0, 300)}`

)

continue

}

const results = matchResults(query, parsed)

console.log(` HTTP ${response.status} (${elapsed}ms)`)

printResults(results)

const counts = { resolved: 0, 'no-rate': 0, missing: 0 }

for (const result of results) counts[result.outcome]++

for (const key of Object.keys(counts) as Outcome[])

totals[key] += counts[key]

console.log(

` -> ${counts.resolved} resolved, ${counts['no-rate']} no rate, ${counts.missing} missing`

)

}

console.log(

`\nTOTAL: ${totals.resolved} resolved, ${totals['no-rate']} no rate, ${

totals.missing

} missing across ${queries.length} quer${

queries.length === 1 ? 'y' : 'ies'

}${failedQueries > 0 ? ` (${failedQueries} failed)` : ''}`

)

if (totals.missing > 0 || totals['no-rate'] > 0 || failedQueries > 0) {

process.exitCode = 1

}

main().catch((error: unknown) => {

console.error(String(error))

process.exitCode = 1

})

edge-react-gui/scripts/ratesCacheReplay.ts at develop · EdgeApp/edge-react-gui · GitHub

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