queries.md

Queries

Queries are requests that do not require network consensus. Queries are processed only by the single node the request is sent to. Below is a list of network queries by service.

Cryptocurrency Accounts	Consensus	Tokens	File Service	Smart Contracts	Schedule Service
AccountBalanceQuery	TopicInfoQuery	TokenBalanceQuery	FileContentsQuery	ContractCallQuery	ScheduleInfoQuery
AccountInfoQuery	TopicMessageQuery	TokenInfoQuery	FileInfoQuery	ContractByteCodeQuery

Get Query Cost

A query that returns the cost of a query prior to submitting the query to network node for processing. If the cost of the query greater than the default max query payment (1 hbar) you can use setMaxQueryPayment(<hbar>) to change the default.

{% tabs %} {% tab title="V1" %}

Method	Type	Description
getCost(<client>)	Client	Get the cost of the query in long representation
getCostAsync(<client, withCost, onError>)	Client, Consumer<long>, Consumer<HederaThrowable>	Get the cost of a query asynchronously

{% code title="Java" %}

//Create the query request
AccountBalanceQuery query = new AccountBalanceQuery()
     .setAccountId(accountId);

//Get the cost of the query
long queryCost = query.getCost(client);

System.out.println("The account balance query cost is " +queryCost);

//v1.3.2

{% endcode %}

{% code title="JavaScript" %}

//Create the query request
const query = new AccountBalanceQuery()
     .setAccountId(accountId);

//Get the cost of the query
const queryCost = await query.getCost(client);

console.log("The account balance query cost is " +queryCost);

{% endcode %} {% endtab %} {% endtabs %}