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Changelog Chainlink External Adapters

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[0.3.0] - 2021-11-10

The stable General Availability release, also known as EAv2.

From this point on external adapters will manage their own versions and changelogs. Docker images for each EA will be published under a tag with its own semantic version.

docker pull public.ecr.aws/chainlink/adapters/1forge-adapter:1.0.0

RC.2 through RC.7 details are summarized below:

Added

Changed

Removed

[0.3.0-rc.1] - 2021-6-30

This release marks the fruition of our recent External Adapter efficiency efforts.

For more details see the public node operator guide here.

Added

  • New performance improving middleware to the core EA framework:

    • Cache-warming
    • Rate-limiting
    • Websockets

  • Metrics support

  • Added support for EOD close prices on Finage, IEX Cloud, Twelvedata, Tiingo and Unibit

  • New adapters:

    • expert-car-broker to get car prices
    • binance to get binance market data
    • sportsdataio to get sports data from sportsdata.io
    • vesper to get TVL from Vesper
    • linear-finance to calculate indexes for Linear Finance

Changed

  • Conflux adapter sending transaction optimization
  • Improved time resolution from days to seconds and smooth-out the effect of added strikes for crypto-volatility-index adapter
  • Added a per-provider ratelimit reference
  • Added Prometheus metrics
  • tradingeconomics will now get stream data from TradingEconomics using a persistent WS connection
  • make commands are now TypeScript files that can be run through yarn scripts

Removed

  • Removed custom tradingeconomics-stream as WS support is not included into tradingeconomics adapter
  • Removed serverless support (AWS Lambda & GPC Functions).

[0.2.0] - 2021-4-13

Added

  • New adapters:
    • agoric to push results to the Agoric blockchain
    • therundown to get sports score data from TheRundown
    • tradingeconomics-stream to get stream data from TradingEconomics
    • blockstream to get Bitcoin height and difficulty
  • Basic prometheus metrics endpoint

Changed

  • Remaining non-2-step adapters migrated to TS
  • Updated support for DIGG/BTC in Kaiko and Amberdata
  • Updated base URL for GeoDB
  • CMC now uses preset IDs instead of preset slugs
  • Added support for tradermade in outlier-detection composite adapter
  • Added support for overrides param in price adapters
  • Improved time resolution from days to seconds and smooth-out the effect of added strikes for crypto-volatility-index adapter

[0.2.0-rc.1] - 2021-2-4

Added

  • New adapters:

    • conflux to send conflux chain transaction
    • xbto to get BRN quotes
    • iv-outlier-detection to get IV values with outlier detection
    • taapi to get Trading Analysis data
    • stasis to get Circulating Supply of EURS
    • defi-pulse to calculate an accurate price for the Defi Pulse Index
    • finage to get Financial data from finage.co.uk
    • coincodex to get crypto prices from CoinCodex
    • coinranking to get crypto prices from Coinranking
    • crypto-volatility-index to calculate the CVI (Crypto volatility index)
    • btc.com to get on-chain balances from BTC.com
    • sochain to get on-chain balances from SoChain
    • dns-query to query DNS over HTTPS
    • dns-record-check to check whether some record provided exists on DNS
    • paxos to get Paxos asset supply attestations
    • outlier-detection: composite adapter to check for outlier values between multiple sets of data providers
    • dydx-stark to sign the input price data with your private STARK key, and send it to the destination endpoint.
    • apy-finance to calculate the TVL in APY Finance
    • token-allocation composite adapter to calculate the total price from a set of tokens
    • bitcoin-json-rpc: composite adapter for querying bitcoin blockchain stats(difficulty, height) according to the existing convention
    • iex-cloud to get stock and crypto market data from IEX Cloud
    • cfbenchmarks to get crypto benchmarks and indices
    • dxfeed-secondary to handle secondary mappings for the TSLA symbol
    • harmony to write transactions to the Harmony blockchain
    • tiingo to get end-of-day stock price data from Tiingo
    • geodb to get location data from GeoDB

  • Added support for metadata in requests. This gives adapters access to the FM on-chain round state.

  • Moves re-usable test behaviors & testing utils to a new package - @chainlink/adapter-test-helpers

  • Added support for using query string parameters as input to adapters.

  • Add a package re-usable adapter factory implementations to - @chainlink/ea-factories

  • Added support for using multiple API Keys per-adapter

Fixed

  • CMC adapter price query fixed for currencies where multiple currencies have the same symbol

Changed

  • Oilprice adapters now accept a common request for Brent crude oil: {"market":"brent"}
  • Market closure is now a composite adapter, and now follows the build instructions for composite adapters. Market now also supports using metadata.
  • Coinlore now accepts an optional environment variable to set the default API endpoint
  • Migrates @chainlink/ea-bootstrap and @chainlink/external-adapter packages to TS.
  • Updates the following adapters with a second endpoint for getting an account's on-chain balance
    • amberdata
    • blockchair
    • cryptoapis
  • dxFeed now uses OTC feeds for FTSE and N225, rather than licensed data feeds
  • Migrated to Typescript
    • kaiko
    • marketstack
    • metalsapi
    • nikkei
    • poa-gasprice
    • polygon
    • nomics
    • openexchangerates
    • coinmarketcap
  • synth-index adapter is now a composite adapter. Going forward there is only one instance of synth-index adapter built, one that you configure with the underlying data provider you wish to use.
  • Removed
    • google-finance

Removed

  • WTI Outlier detection and IV Outlier detection adapters are now covered in the Outlier detection composite adapter

[0.1.5] - 2021-2-2

  • Cache key generator now ignores 'meta' metadata as default setting

[0.1.4] - 2020-10-30

Added

  • New adapters:
    • linkpool to get ICE futures quotes
    • onchain to get ICE futures quotes
    • lcx to get BTC and ETH prices in USD or EUR

Fixed

  • Local in-memory cache got broken in the last release, and was reinitialized on every request.
  • amberdata adapter wasn't responding for some assets because they don't make cross-rates by default. Cross-rates are now included which enables this adapter to support markets like BNB/USD, not just the actual BNB/USDT.

[0.1.3] - 2020-10-29

Added

  • Caching improvements:
    • Request coalescing support to mitigate the issue of requests for data coming in bursts and missing the cache.
    • Remote cache (Redis/ElastiCache) support, with adapter key grouping, to enable more efficient serverless deployments.
  • Support for composite adapters:
    • composite/proof-of-reserves adapter combines multiple adapters to find total balance in custody for wBTC or renBTC protocols.
  • New adapters:
    • wbtc-address-set to query wBTC custody address set.
    • renvm-address-set to query renVM protocol custody address set.
    • blockchain.com to fetch balances for a set of Bitcoin addresses.
    • blockcypher to fetch balances for a set of Bitcoin addresses.
    • reduce to reduce an array to a result. Different reducers are supported like: sum, product, average, median, min & max.
    • trueusd to query supply and issuance data for TrueUSD.
    • cryptoid to get chain difficulty measurement from different networks.
    • blockchair to get chain difficulty measurement from different networks.
    • bitso to get last 24 hours volume weighted average price (vwap) for multiple markets.
    • cryptomkt to get last transaction price for multiple markets.
    • satoshitango to get last bid price for multiple markets.
    • bitex to get volume weighted average price (vwap) for multiple markets.
    • orchid-bandwidth to get available bandwidth from Chainlink as service provider.
    • genesis-volatility to get implied volatility of an asset.
    • covid-tracker to query COVID-19 statistics.
    • lition to query the price in Euros per MWh for Lition.
    • coinlore to query the Bitcoin market dominance and market capitalization.
    • messari to query the Bitcoin market dominance.

Changed

  • Improved logs.
  • Prettier logs in development environment.

[0.1.2] - 2020-09-18

Changed

  • Replaced alphavantage-sdr with alphachain adapter

[0.1.1] - 2020-09-18

Added

  • CHANGELOG.md (this file), to keep track of changes between releases

Changed

  • Gas adapters (amberdata-gasprice, anyblock-gasprice, etherchain, ethgasstation & poa-gasprice) now do not require speed param on input, but will use a sensible default.

Fixed

  • Kaiko adapter endpoint fix

[0.1.0] - 2020-09-17

Initial external adapter release!