Expand description
YDB SDK - a client for YDB.
Example
// create driver
let client = ClientBuilder::new_from_connection_string("grpc://localhost:2136?database=local")?
.with_credentials(StaticToken::from("asd"))
.client()?;
// wait until driver background initialization finish
client.wait().await?;
// read query result
let sum: i32 = client
.table_client() // create table client
.retry_transaction(|mut t| async move {
// code in transaction can retry few times if was some retriable error
// send query to database
let res = t.query(Query::from("SELECT 1 + 1 AS sum")).await?;
// read exact one result from db
let field_val: i32 = res.into_only_row()?.remove_field_by_name("sum")?.try_into()?;
// return result
return Ok(field_val);
})
.await?;
// it will print "sum: 2"
println!("sum: {}", sum);More examples
Macros
sugar for manual construct query params
Structs
YDB client
Get from stdout of command
Current discovery state
Get instance service account token from GCE instance
Query object
Retry options
Always discovery once static node
Credentials with static token without renewing
Client for YDB table service (SQL queries)
Options for create transaction
Describe issue from server
Describe operation status from server
Enums
Internal represent database value for send to or received from database.
Error which can be returned from the crate.
Severity of issue
Error for wrap user errors while return it from callback
Traits
Type Definitions
Get token of service account of instance
T result or YdbError as Error
T result or YdbOrCustomerError as Error