Class PackageDownloader

constructor

• new PackageDownloader(logger?: SoloLogger): PackageDownloader

  Parameters

  • Optionallogger: SoloLogger

  Returns PackageDownloader

Optional Readonlylogger

fetchFile

• fetchFile(url: string, destinationPath: string): Promise<string>

  Fetch data from a URL and save the output to a file

  Parameters

  • url: string

    source file URL

  • destinationPath: string

    destination path for the downloaded file

  Returns Promise<string>

fetchPackage

• fetchPackage(
      packageURL: string,
      checksumDataOrURL: string,
      destinationDirectory: string,
      verifyChecksum?: boolean,
      algo?: string,
      force?: boolean,
  ): Promise<string>

  Fetch a remote package

  Parameters

  • packageURL: string
  • checksumDataOrURL: string

    package checksum URL or checksum data

  • destinationDirectory: string

    a directory where the files should be downloaded to

  • verifyChecksum: boolean = true

    whether to verify checksum or not

  • Optionalalgo: string = 'sha256'

    checksum algo

  • Optionalforce: boolean = false

    force download even if the file exists in the destinationDirectory

  Returns Promise<string>

fetchPlatform

• fetchPlatform(
      tag: string,
      destinationDirectory: string,
      force?: boolean,
  ): Promise<string>

  Fetch Hedera platform release artifact

  It fetches the build.zip file containing the release from a URL like: https://builds.hedera.com/node/software/v0.40/build-v0.40.4.zip

  Parameters

  • tag: string

    full semantic version e.g. v0.40.4

  • destinationDirectory: string

    directory where the artifact needs to be saved

  • Optionalforce: boolean = false

    whether to download even if the file exists

  Returns Promise<string>

  full path to the downloaded file

urlExists

• urlExists(url: string): Promise<boolean>

  Parameters

  • url: string

  Returns Promise<boolean>