Get file contents

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 base transaction fee

• Please use the Hedera fee estimator to estimate your query fee cost

Constructor	Description
new FileContentsQuery()	Initializes a FileContentsQuery object

new FileContentsQuery()

Methods

V1

Method	Type	Description
setFileId(<fileId>)	FileId	The ID of the file to get contents for (x.z.y)

Java

//Create the query
FileContentsQuery query = new FileContentsQuery()
    .setFileId(newFileId);

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

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

System.out.println(contentsToUtf8);

//v1.3.2

JavaScript

//Create the query
const query = new FileContentsQuery()
    .setFileId(newFileId);

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

console.log(contents);

Get query values

V2

Method	Type	Description
getFileId()	FileId	The ID of the file to get contents for (x.z.y)

Java

//Create the query
FileContentsQuery query = new FileContentsQuery()
    .setFileId(newFileId);

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

//v2.0.0

JavaScript

//Create the query
const query = new FileContentsQuery()
    .setFileId(newFileId);

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

Go

//Create the query
query := hedera.NewFileContentsQuery().
		SetFileID(newFileId)
		
//Get file ID
getFileId := query.GetFileID()

//v2.0.0