Class managedwriter.Writer (4.5.0)

A BigQuery Storage API Writer that can be used to write data into BigQuery Table using the Storage API.

managedwriter

Package

constructor(params: WriterOptions);

Creates a new Writer instance.

Parameter
Name	Description
`params`	`WriterOptions` The parameters for the Writer. See WriterOptions docs for more information.

appendRows(rows: ProtoData['rows'], offsetValue?: IInt64Value['value']): PendingWrite;

Schedules the writing of rows at given offset.

Parameters
Name	Description
`rows`	`ProtoData['rows']` the rows in serialized format to write to BigQuery.
`offsetValue`	`IInt64Value_2['value']` the offset of the first row.

Returns
Type	Description
`PendingWrite`	{managedwriter.PendingWrite} The pending write

close(): void;

Returns
Type	Description
`void`

setDefaultMissingValueInterpretation(defaultMissingValueInterpretation: MissingValueInterpretation): void;

Update how missing values are interpreted for the given stream.

Parameter
Name	Description
`defaultMissingValueInterpretation`	`MissingValueInterpretation`

Returns
Type	Description
`void`

setMissingValueInterpretations(missingValueInterpretations: MissingValueInterpretationMap): void;

Update how missing values are interpreted for individual columns.

Parameter
Name	Description
`missingValueInterpretations`	`MissingValueInterpretationMap`

Returns
Type	Description
`void`

setProtoDescriptor(protoDescriptor: IDescriptorProto): void;

Update the proto descriptor for the Writer. Internally a reconnection event is gonna happen to apply the new proto descriptor.

Parameter
Name	Description
`protoDescriptor`	`IDescriptorProto` The proto descriptor.

Returns
Type	Description
`void`