QueryAsync()
Retrieves rows from a collection via scalar filtering based on a boolean expression.
Invocation
await collection.QueryAsync(expression, parameters = null, cancellationToken = default);
Parameters
| Parameter | Description | Type | Required |
|---|---|---|---|
expression | A boolean expression determining which rows are to be returned. | string | True |
parameters | Various additional optional parameters to configure the query. | QueryParameters? | False |
cancellationToken | The token to monitor for cancellation requests. The default value is CancellationToken.None. | CancellationToken | False |
Return
A list of FieldData instances with the query results.
Example
var results = await Client.GetCollection("book").QueryAsync(
expression: "book_id in [2,4,6,8]",
new QueryParameters
{
Offset = 0,
Limit = 10,
OutputFields = { "book_id", "book_intro" }
});