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A query to get the contents of a file. Queries do not change the state of the file or require network consensus. The information is returned from a single node processing the query. Query Signing Requirements
  • The client operator private key is required to sign the query request
Query Fees
  • Please see the transaction and query fees table for the base transaction fee
  • Please use the Hedera fee estimator to estimate your query fee cost
ConstructorDescription
new FileContentsQuery()Initializes a FileContentsQuery object
new FileContentsQuery()

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Methods

MethodTypeDescription
setFileId(<fileId>)FileIdThe ID of the file to get contents for (x.z.y)
//Create the query
FileContentsQuery query = new FileContentsQuery()
    .setFileId(newFileId);

//Sign with client operator private key and submit the query to a Hedera network
ByteString contents = query.execute(client);

//Change to Utf-8 encoding
String contentsToUtf8 = contents.toStringUtf8();

System.out.println(contentsToUtf8);

//v2.0.0

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Get query values

MethodTypeDescription
getFileId()FileIdThe ID of the file to get contents for (x.z.y)
//Create the query
FileContentsQuery query = new FileContentsQuery()
    .setFileId(newFileId);

//Get file ID
FileId getFileId = query.getFileId();

//v2.0.0