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NEWS: Update for 0.19.0
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‎NEWS.md‎

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# NEWS
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## Unreleased
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### Feature: Include Block in Query Responses
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Responses to GraphQL queries now include the block at which the query was
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executed. The response now contains an `extensions` field of the following
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form:
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## 0.19.0
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```json
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{
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"data": "...",
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"extensions": {
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"subgraph": {
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"blocks": {
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"ethereum/mainnet": {
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"hash": "ea3bc37eb909f29c897d7a3fe3de30abd86baa58619403941e14a9797063a479",
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"number": 9892879
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}
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},
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"id": "QmZo35amfokYndPeuRd91bSzF6EusfBKMuDQCvaq25FVUX"
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}
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}
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}
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```
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The key in the `blocks` object indicate the Ethereum network that the
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subgraph indexes, such as `ethereum/mainnet` or `ethereum/kovan`. What
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exactly gets reported has `hash` and `number` depends on the query:
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- for time-travel queries with a block constraint of the form `block: {
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hash: "deadbeef" }`, that hash and the number of the corresponding block
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will appear in the response
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- for time-travel queries with a block constraint of the form `block: {
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number: 123456 }`, the `hash` will be all zeroes, and the number will be
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the number given in the query
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- for queries without any block constraint, the query will be run against
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the latest block that subgraph has processed, the hash and number of that
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block will be reported in the response
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### Misc
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## Unreleased
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- Fix loading more than 200 dynamic data sources (#1596).
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- Skip `trace_filter` on empty blocks (#1923).
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- Ensure runtime hosts are unique to avoid double-counting, improve logging
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(#1904).
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- Add administrative Postgres views (#1889).
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- Limit the GraphQL `skip` argument in the same way as we limit `first` (#1912).
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- Fix GraphQL fragment bugs (#1825).
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- Don't crash node and show better error when multiple graph nodes are indexing
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the same subgraph (#1903).
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- Add a query semaphore to allow to control the number of concurrent queries and
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subscription queries being executed (#1802).
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- Call Ethereum contracts by block hash (#1905).
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- Fix fetching the correct function ABI from the contract ABI (#1886).
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- Add LFU cache for historical queries (#1878, #1879, #1891).
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- Log GraphQL queries only once (#1873).
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- Gracefully fail on a null block hash and encoding failures in the Ethereum
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adapter (#1872).
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- Improve metrics by using labels more (#1868, ...)
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- Log when decoding a contract call result fails to decode (#1842).
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- Fix Ethereum node requirements parsing based on the manifest (#1834).
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- Speed up queries that involve checking for inclusion in an array (#1820).
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- Add better error message when blocking a query due to load management (#1822).
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- Support multiple Ethereum nodes/endpoints per network, with different
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capabilities (#1810).
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- Change how we index foreign keys (#1811).
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- Add an experimental Ethereum node config file (#1819).
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- Allow using GraphQL variables in block constraints (#1803).
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- Add Solidity struct array / Ethereum tuple array support (#1815).
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- Resolve subgraph names in a blocking task (#1797).
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- Add environmen variable options for sensitive arguments (#1784).
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- USe blocking task for store events (#1789).
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- Refactor servers, log GraphQL panics (#1783).
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- Remove excessive logging in the store (#1772).
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- Add dynamic load management for GraphQL queries (#1762, #1773, #1774).
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- Add ability to block certain queries (#1749, #1771).
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- Log the complexity of each query executed (#1752).
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- Add support for running against read-only Postgres replicas (#1746, #1748,
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#1753, #1750, #1754, #1860).
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- Catch invalid opcode reverts on Geth (#1744).
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- Optimize queries for single-object lookups (#1734).
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- Increase the maximum number of blocking threads (#1742).
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- Increase default JSON-RPC timeout (#1732).
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- Ignore flaky network indexers tests (#1724).
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- Change default max block range size to 1000 (#1727).
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- Fixed aliased scalar fields (#1726).
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- Fix issue inserting fulltext fields when all included field values are null (#1710).
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- Remove frequent "GraphQL query served" log message (#1719).
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- Fix `bigDecimal.devidedBy` (#1715).
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- Optimize GraphQL execution, remove non-prefetch code (#1712, #1730, #1733,
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#1743, #1775).
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- Add a query cache (#1708, #1709, #1747, #1751, #1777).
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- Support the new Geth revert format (#1713).
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- Switch WASM runtime from wasmi to wasmtime and cranelift (#1700).
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- Avoid adding `order by` clauses for single-object lookups (#1703).
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- Refactor chain head and store event listeners (#1693).
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- Properly escape single quotes in strings for SQL queries (#1695).
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- Revamp how Graph Node Docker image is built (#1644).
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- Add BRIN indexes to speed up revert handling (#1683).
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- Don't store chain head block in `SubgraphDeployment` entity (#1673).
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- Allow varying block constraints across different GraphQL query fields (#1685).
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- Handle database tables that have `text` columns where they should have enums (#1681).
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- Make contract call cache collision-free (#1680).
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- Fix a SQL query in `cleanup_cached_blocks` (#1672).
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- Exit process when panicking in the notification listener (#1671).
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- Rebase ethabi and web3 forks on top of upstream (#1662).
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- Remove parity-wasm dependency (#1663).
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- Normalize `BigDecimal` values, limit `BigDecimal` exponent (#1640).
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- Strip nulls from strings (#1656).
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- Fetch genesis block by number `0` instead of `"earliest"` (#1658).
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- Speed up GraphQL query execution (#1648).
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- Fetch event logs in parallel (#1646).
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- Cheaper block polling (#1646).
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- Improve indexing status API (#1609, #1655, #1659, #1718).
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- Log Postgres contention again (#1643).
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- Allow `User-Agent` in CORS headers (#1635).
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- Docker: Increase startup wait timeouts (Postgres, IPFS) to 120s (#1634).
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- Allow using `Bytes` for `id` fields (#1607).
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- Increase Postgres connection pool size (#1620).
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- Fix entities updated after being removed in the same block (#1632).
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- Pass `log_index` to mappings in place of `transaction_log_index` (required for
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Geth).
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- Don't return `__typename` to mappings (#1629).
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- Log warnings after 10 successive failed `eth_call` requests. This makes
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it more visible when graph-node is not operating against an Ethereum
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archive node (#1606).
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- Improve use of async/await across the codebase.
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- Add Proof Of Indexing (POI).
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- Add first implementation of subgraph grafting.
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- Add integration test for handling Ganache reverts (#1590).
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- Log all GraphQL and SQL queries performed by a node, controlled through
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the `GRAPH_LOG_QUERY_TIMING` [environment
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variable](docs/environment-variables.md) (#1595).
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- Add integration test for handling Ganache reverts (#1590).
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- Don't return `__typename` to mappings (#1629).
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- Normalize `BigDecimal` values, limit `BigDecimal` exponent (#1640).
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- Strip nulls from strings (#1656).
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- Less expensive block polling (#1645).
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- Fix loading more than 200 dynamic data sources (#1596).
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- Fix fulltext schema validation (`includes` fields).
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- Dependency updates:
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anyhow,
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async-trait,
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bs58,
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blake3,
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bytes,
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chrono,
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clap,
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crossbeam-channel
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derive_more,
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diesel-derive-enum,
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duct,
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ethabi,
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git-testament,
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hex-literal,
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hyper,
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indexmap,
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jsonrpc-core,
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mockall,
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once_cell,
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petgraph,
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reqwest,
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semver,
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serde,
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serde_json,
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slog-term,
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tokio,
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wasmparser,
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## 0.18.0
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@@ -162,13 +234,13 @@ that are associated with a particular trading pair, which is included in the
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created data source, like so:
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```ts
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import { DataSourceContext } from '@graphprotocol/graph-ts'
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import { Exchange } from '../generated/templates'
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import { DataSourceContext } from "@graphprotocol/graph-ts";
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import { Exchange } from "../generated/templates";
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export function handleNewExchange(event: NewExchange): void {
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let context = new DataSourceContext()
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context.setString('tradingPair', event.params.tradingPair)
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Exchange.createWithContext(event.params.exchange, context)
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let context = new DataSourceContext();
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context.setString("tradingPair", event.params.tradingPair);
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Exchange.createWithContext(event.params.exchange, context);
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}
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```
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