@polkadot/types#Bool TypeScript Examples

async createVideo(
    memberId: MemberId,
    channelId: ChannelId,
    inputMetadata: VideoInputMetadata,
    nftInputMetadata: NftIssuanceInputMetadata | undefined,
    inputAssets: VideoInputAssets,
    cb?: ExtrinsicStatusCallbackFn
  ): Promise<VideoExtrinsicResult> {
    await this.ensureApi()

    const [videoMetadata, videoAssets] = await parseVideoExtrinsicInput(this.api, inputMetadata, inputAssets)

    const nftIssuanceParameters = createNftIssuanceParameters(this.api.registry, nftInputMetadata)

    const creationParameters = new VideoCreationParameters(this.api.registry, {
      meta: videoMetadata,
      assets: videoAssets,
      enable_comments: new bool(this.api.registry, false),
      auto_issue_nft: new Option(this.api.registry, NftIssuanceParameters, nftIssuanceParameters),
    })

    const contentActor = new ContentActor(this.api.registry, {
      member: memberId,
    })
    const tx = this.api.tx.content.createVideo(contentActor, channelId, creationParameters)
    const { block, getEventData } = await this.sendExtrinsic(tx, cb)

    const videoId = getEventData('content', 'VideoCreated')[2]

    return {
      videoId: videoId.toString(),
      block,
      assetsIds: extractVideoResultAssetsIds(inputAssets, getEventData),
    }
  }

async updateVideo(
    videoId: VideoId,
    memberId: MemberId,
    inputMetadata: VideoInputMetadata,
    nftInputMetadata: NftIssuanceInputMetadata | undefined,
    inputAssets: VideoInputAssets,
    cb?: ExtrinsicStatusCallbackFn
  ): Promise<VideoExtrinsicResult> {
    await this.ensureApi()

    const [videoMetadata, videoAssets] = await parseVideoExtrinsicInput(this.api, inputMetadata, inputAssets)

    const nftIssuanceParameters = createNftIssuanceParameters(this.api.registry, nftInputMetadata)

    const updateParameters = new VideoUpdateParameters(this.api.registry, {
      new_meta: videoMetadata,
      assets_to_upload: videoAssets,
      assets_to_remove: new BTreeSet(this.api.registry, DataObjectId, getInputDataObjectsIds(inputAssets)),
      enable_comments: new Option(this.api.registry, bool),
      auto_issue_nft: new Option(this.api.registry, NftIssuanceParameters, nftIssuanceParameters),
    })

    const contentActor = new ContentActor(this.api.registry, {
      member: memberId,
    })
    const tx = this.api.tx.content.updateVideo(contentActor, videoId, updateParameters)

    const { block, getEventData } = await this.sendExtrinsic(tx, cb)

    return {
      videoId,
      block,
      assetsIds: extractVideoResultAssetsIds(inputAssets, getEventData),
    }
  }

// ---------------------------------------------------------------------
  // Is boolean

  async isAccountFollower (myAddress: AnyAccountId, followedAddress: AnyAccountId): Promise<boolean> {
    const followedAccountId = asAccountId(followedAddress)
    const myAccountId = asAccountId(myAddress)
    const queryParams = new Tuple(registry, [ GenericAccountId, GenericAccountId ], [ myAccountId, followedAccountId ]);
    const isFollow = await this.queryPallet({ pallet: 'profileFollows', storage: 'accountFollowedByAccount' }, queryParams) as bool
    return isFollow.valueOf()
  }

export class OptionBool<T extends boolean> extends Option<bool> {
  constructor (value?: T) {
    const boolOrNull = typeof value === 'boolean' ? value : new Null(registry)
    super(registry, 'bool', boolOrNull)
  }
}

// TODO maybe pallet: 'posts' | 'spaces
  private async isBooleanByAccount (params: StorageItem, accountId: AnyAccountId, subjectId: SubstrateId): Promise<boolean> {
    const { storage, pallet } = params
    const queryParams = new Tuple(registry, [ GenericAccountId, 'u64' ], [ asAccountId(accountId), subjectId ]);
    const isBoolean = await this.queryPallet({ pallet, storage }, queryParams) as bool
    return isBoolean.valueOf()
  }

async getRawValuesUpdated(key: InterbtcPrimitivesOracleKey): Promise<boolean> {
        const isSet = await this.api.query.oracle.rawValuesUpdated<Option<Bool>>(key);
        return isSet.unwrap().isTrue;
    }