Network address book

The address book contains the node ID and and node address information to sync with Hedera node(s) in a specific network. The address book file ID for each network is 0.0.102. You can obtain the address book information by requesting the contents of the file 0.0.102 (FileContentsQuery()). The network information can also be found in your Hedera portal account.

Java
//Create the query
FileContentsQuery fileQuery = new FileContentsQuery()
            .setFileId(FileId.ADDRESS_BOOK);
​
//Sign with the operator private key and submit to a Hedera network
ByteString contents = fileQuery.execute(client);
​
System.out.println(contents.toStringUtf8());
​
//v2.0.0

JavaScript
//Create the query
const fileQuery = new FileContentsQuery()
     .setFileId( FileId.fromString("102"));
​
//Sign with the operator private key and submit to a Hedera network
const contents = await fileQuery.execute(client);
​
console.log(contents.toString())
​
//v2.0.7

Go
//Create the query
fileQuery := hedera.NewFileContentsQuery().
		SetFileID(hedera.FileIDForAddressBook())
​
//Sign with the operator private key and submit to a Hedera network
contents, err := fileQuery.Execute(client)
if err != nil {
		panic(err)
}
​
fmt.Println(string(contents))
//v2.0.0

Java
// Get file contents
byte [] contents = new FileContentsQuery()
    .setFileId(FileId.ADDRESS_BOOK)
    .execute(client);
​
// Prints query results to console
System.out.println("File content query results: " + new String(contents));
​
//v1.3.2

JavaScript
//Create the query
const fileQuery = new FileContentsQuery()
     .setFileId( FileId.fromString("102"));
​
//Sign with the operator private key and submit to a Hedera network
const contents = await fileQuery.execute(client);
​
console.log(contents.toString())
​
//1.4.4

Sample Output:

0.0.5"�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 �0.0.6"�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 �0.0.3"�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 �0.0.4"�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