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1.10 (#2158)
* 1.10 * CHANGELOG * key extract example
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‎CHANGELOG.md‎

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# 1.10.0-beta.x
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# 1.10.1 Apr 13, 2020
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- **Important** Substrate master has updated staking, on older chains apply `StakingLedger: 'StakingLedgerTo240'`
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- Add `rpc.system.chainType` to retrieve the chain type (Development. Local, Live & Custom)
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- Cleanups to derives for democracy & staking to be more performant
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- Add Centrifuge base types to `@polkadot/types-known`
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- Adjust with all the latest substrate master types
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- Internally all private/protected methods/variables are now indicated with `_` (Aligning with the `private/protected` indicators in the TS definitions)
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- Internally all private/protected methods/variables are now `_` prefixed (Aligning with the `private/protected` indicators in the TS definitions)
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- Update metadata/docs-from-metadata to the latest Substrate
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# 1.9.1 Apr 1, 2020
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‎docs/start/api.query.other.md‎

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// Retrieve the active era
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const activeEra = await api.query.staking.activeEra();
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// retrieve all exposures int the active era
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// retrieve all exposures for the active era
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const exposures = await api.query.staking.erasStakers.entries(activeEra.index);
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exposures.forEach(([key, exposure]) => {
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Here we are querying a double-map, so we supply 1 argument. No arguments on double-maps will be very costly, retrieving all the eras and associated entries. Additionally when `twox64_concat` & `blake2_concat` is used, the key `.args` will contain decoded values of the params, in this case it will contain the actual `AccountId` of the staker. (Since that was not supplied)
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In the same way as above we can simply do `.keys(activeEra.index): StorageKey[]` to retrieve all the keys here, including the individual keys args decoding, as available on maps with decodable hashing functions.
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In the same way as above we can simply do `.keys(activeEra.index): StorageKey[]` to retrieve all the keys here, including the individual keys args (available on maps with decodable hashing functions) -
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```js
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// retrieve all the nominator keys
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const keys = await api.query.staking.nominators.keys();
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// extract the first key argument (AccountId) as string
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const nominatorIds = keys.map((key) => key.args[0].toString());
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console.log('all nominators:', nminatorIds.join(', '));
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```
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## State entries
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‎lerna.json‎

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"packages": [
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"packages/*"
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],
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"version": "1.10.0-beta.29"
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"version": "1.10.0"
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}

‎packages/api-contract/package.json‎

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{
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"name": "@polkadot/api-contract",
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"version": "1.10.0-beta.29",
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"version": "1.10.0",
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"description": "Interfaces for interacting with contracts and contract ABIs",
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"main": "index.js",
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"keywords": [
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"homepage": "https://github.com/polkadot-js/api/tree/master/packages/api-contract#readme",
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"dependencies": {
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"@babel/runtime": "^7.9.2",
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"@polkadot/api": "1.10.0-beta.29",
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"@polkadot/rpc-core": "1.10.0-beta.29",
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"@polkadot/types": "1.10.0-beta.29",
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"@polkadot/api": "1.10.0",
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"@polkadot/rpc-core": "1.10.0",
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"@polkadot/types": "1.10.0",
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"@polkadot/util": "^2.8.1",
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"bn.js": "^5.1.1",
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"rxjs": "^6.5.5"

‎packages/api-derive/package.json‎

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{
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"name": "@polkadot/api-derive",
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"version": "1.10.0-beta.29",
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"version": "1.10.0",
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"description": "Common functions used across Polkadot, derived from RPC calls and storage queries.",
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"main": "index.js",
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"keywords": [
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"homepage": "https://github.com/polkadot-js/api/tree/master/packages/api-derive#readme",
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"dependencies": {
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"@babel/runtime": "^7.9.2",
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"@polkadot/api": "1.10.0-beta.29",
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"@polkadot/rpc-core": "1.10.0-beta.29",
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"@polkadot/rpc-provider": "1.10.0-beta.29",
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"@polkadot/types": "1.10.0-beta.29",
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"@polkadot/api": "1.10.0",
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"@polkadot/rpc-core": "1.10.0",
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"@polkadot/rpc-provider": "1.10.0",
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"@polkadot/types": "1.10.0",
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"@polkadot/util": "^2.8.1",
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"@polkadot/util-crypto": "^2.8.1",
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"bn.js": "^5.1.1",

‎packages/api/package.json‎

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{
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"name": "@polkadot/api",
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"version": "1.10.0-beta.29",
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"version": "1.10.0",
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"description": "Promise and RxJS wrappers around the Polkadot JS RPC",
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"main": "index.js",
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"keywords": [
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"homepage": "https://github.com/polkadot-js/api/tree/master/packages/api#readme",
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"dependencies": {
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"@babel/runtime": "^7.9.2",
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"@polkadot/api-derive": "1.10.0-beta.29",
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"@polkadot/api-derive": "1.10.0",
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"@polkadot/keyring": "^2.8.1",
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"@polkadot/metadata": "1.10.0-beta.29",
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"@polkadot/rpc-core": "1.10.0-beta.29",
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"@polkadot/rpc-provider": "1.10.0-beta.29",
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"@polkadot/types": "1.10.0-beta.29",
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"@polkadot/types-known": "1.10.0-beta.29",
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"@polkadot/metadata": "1.10.0",
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"@polkadot/rpc-core": "1.10.0",
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"@polkadot/rpc-provider": "1.10.0",
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"@polkadot/types": "1.10.0",
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"@polkadot/types-known": "1.10.0",
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"@polkadot/util": "^2.8.1",
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"@polkadot/util-crypto": "^2.8.1",
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‎packages/metadata/package.json‎

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{
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"name": "@polkadot/metadata",
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"version": "1.10.0-beta.29",
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"version": "1.10.0",
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"description": "Helpers to extract information from runtime metadata",
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"main": "index.js",
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"publishConfig": {
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"homepage": "https://github.com/polkadot-js/api/tree/master/packages/type-metadata#readme",
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"dependencies": {
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"@babel/runtime": "^7.9.2",
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"@polkadot/types": "1.10.0-beta.29",
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"@polkadot/types-known": "1.10.0-beta.29",
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"@polkadot/types": "1.10.0",
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"@polkadot/types-known": "1.10.0",
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‎packages/rpc-core/package.json‎

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"name": "@polkadot/rpc-core",
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"version": "1.10.0-beta.29",
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"version": "1.10.0",
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"description": "A JavaScript wrapper for the Polkadot JsonRPC interface",
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"homepage": "https://github.com/polkadot-js/api/tree/master/packages/rpc-core#readme",
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"dependencies": {
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"@polkadot/metadata": "1.10.0-beta.29",
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"@polkadot/rpc-provider": "1.10.0-beta.29",
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"@polkadot/types": "1.10.0-beta.29",
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"@polkadot/metadata": "1.10.0",
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"@polkadot/rpc-provider": "1.10.0",
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"@polkadot/types": "1.10.0",
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"@polkadot/util": "^2.8.1",
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"memoizee": "^0.4.14",
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‎packages/rpc-provider/package.json‎

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"name": "@polkadot/rpc-provider",
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"version": "1.10.0-beta.29",
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"version": "1.10.0",
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"description": "Transport providers for the API",
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"main": "index.js",
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"homepage": "https://github.com/polkadot-js/api/tree/master/packages/rpc-provider#readme",
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"dependencies": {
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"@polkadot/metadata": "1.10.0-beta.29",
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"@polkadot/types": "1.10.0-beta.29",
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"@polkadot/metadata": "1.10.0",
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"@polkadot/types": "1.10.0",
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"@polkadot/util-crypto": "^2.8.1",
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‎packages/typegen/package.json‎

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"version": "1.10.0",
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"description": "Type generation scripts",
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"bin": {
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"@babel/core": "^7.9.0",
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"@babel/register": "^7.9.0",
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"@babel/runtime": "^7.9.2",
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"@polkadot/api": "1.10.0-beta.29",
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"@polkadot/metadata": "1.10.0-beta.29",
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"@polkadot/rpc-provider": "1.10.0-beta.29",
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"@polkadot/types": "1.10.0-beta.29",
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"@polkadot/api": "1.10.0",
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"@polkadot/metadata": "1.10.0",
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"@polkadot/rpc-provider": "1.10.0",
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"@polkadot/types": "1.10.0",
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"@polkadot/util": "^2.8.1",
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"websocket": "^1.0.31",
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"yargs": "^15.3.1"

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