October 19, 2016
Breaking changes to cloud.google.com/go/bigquery:
Client.Table and Client.OpenTable have been removed. Replace
client.OpenTable("project", "dataset", "table")
with
client.DatasetInProject("project", "dataset").Table("table")
Client.CreateTable has been removed. Replace
client.CreateTable(ctx, "project", "dataset", "table")
with
client.DatasetInProject("project", "dataset").Table("table").Create(ctx)
Dataset.ListTables have been replaced with Dataset.Tables. Replace
tables, err := ds.ListTables(ctx)
with
it := ds.Tables(ctx) for { table, err := it.Next() if err == iterator.Done { break } if err != nil { // TODO: Handle error. } // TODO: use table. }
Client.Read has been replaced with Job.Read, Table.Read and Query.Read. Replace
it, err := client.Read(ctx, job)
with
it, err := job.Read(ctx)
and similarly for reading from tables or queries.
The iterator returned from the Read methods is now named RowIterator. Its behavior is closer to the other iterators in these libraries. It no longer supports the Schema method; see the next item. Replace
for it.Next(ctx) { var vals ValueList if err := it.Get(&vals); err != nil { // TODO: Handle error. } // TODO: use vals. } if err := it.Err(); err != nil { // TODO: Handle error. }
with
for { var vals ValueList err := it.Next(&vals) if err == iterator.Done { break } if err != nil { // TODO: Handle error. } // TODO: use vals. }
Instead of the RecordsPerRequest(n)
option, write
it.PageInfo().MaxSize = n
Instead of the StartIndex(i)
option, write
it.StartIndex = i
ValueLoader.Load now takes a Schema in addition to a slice of Values. Replace
func (vl *myValueLoader) Load(v []bigquery.Value)
with
func (vl *myValueLoader) Load(v []bigquery.Value, s bigquery.Schema)
Table.Patch is replace by Table.Update. Replace
p := table.Patch()
p.Description("new description")
metadata, err := p.Apply(ctx)
with
metadata, err := table.Update(ctx, bigquery.TableMetadataToUpdate{
Description: "new description",
})
Client.Copy is replaced by separate methods for each of its four functions. All options have been replaced by struct fields.
To load data from Google Cloud Storage into a table, use Table.LoaderFrom.
Replace
client.Copy(ctx, table, gcsRef)
with
table.LoaderFrom(gcsRef).Run(ctx)
Instead of passing options to Copy, set fields on the Loader:
loader := table.LoaderFrom(gcsRef)
loader.WriteDisposition = bigquery.WriteTruncate
To extract data from a table into Google Cloud Storage, use Table.ExtractorTo. Set fields on the returned Extractor instead of passing options.
Replace
client.Copy(ctx, gcsRef, table)
with
table.ExtractorTo(gcsRef).Run(ctx)
To copy data into a table from one or more other tables, use Table.CopierFrom. Set fields on the returned Copier instead of passing options.
Replace
client.Copy(ctx, dstTable, srcTable)
with
dst.Table.CopierFrom(srcTable).Run(ctx)
To start a query job, create a Query and call its Run method. Set fields on the query instead of passing options.
Replace
client.Copy(ctx, table, query)
with
query.Run(ctx)
Table.NewUploader has been renamed to Table.Uploader. Instead of options, configure an Uploader by setting its fields. Replace
u := table.NewUploader(bigquery.UploadIgnoreUnknownValues())
with
u := table.NewUploader(bigquery.UploadIgnoreUnknownValues())
u.IgnoreUnknownValues = true
October 10, 2016
Breaking changes to cloud.google.com/go/storage:
AdminClient replaced by methods on Client. Replace
adminClient.CreateBucket(ctx, bucketName, attrs)
with
client.Bucket(bucketName).Create(ctx, projectID, attrs)
BucketHandle.List replaced by BucketHandle.Objects. Replace
for query != nil {
objs, err := bucket.List(d.ctx, query)
if err != nil { ... }
query = objs.Next
for _, obj := range objs.Results {
fmt.Println(obj)
}
}
with
iter := bucket.Objects(d.ctx, query)
for {
obj, err := iter.Next()
if err == iterator.Done {
break
}
if err != nil { ... }
fmt.Println(obj)
}
(The iterator
package is at google.golang.org/api/iterator
.)
Replace Query.Cursor
with ObjectIterator.PageInfo().Token
.
Replace Query.MaxResults
with ObjectIterator.PageInfo().MaxSize
.
ObjectHandle.CopyTo replaced by ObjectHandle.CopierFrom. Replace
attrs, err := src.CopyTo(ctx, dst, nil)
with
attrs, err := dst.CopierFrom(src).Run(ctx)
Replace
attrs, err := src.CopyTo(ctx, dst, &storage.ObjectAttrs{ContextType: "text/html"})
with
c := dst.CopierFrom(src)
c.ContextType = "text/html"
attrs, err := c.Run(ctx)
ObjectHandle.ComposeFrom replaced by ObjectHandle.ComposerFrom. Replace
attrs, err := dst.ComposeFrom(ctx, []*storage.ObjectHandle{src1, src2}, nil)
with
attrs, err := dst.ComposerFrom(src1, src2).Run(ctx)
ObjectHandle.Update's ObjectAttrs argument replaced by ObjectAttrsToUpdate. Replace
attrs, err := obj.Update(ctx, &storage.ObjectAttrs{ContextType: "text/html"})
with
attrs, err := obj.Update(ctx, storage.ObjectAttrsToUpdate{ContextType: "text/html"})
ObjectHandle.WithConditions replaced by ObjectHandle.If. Replace
obj.WithConditions(storage.Generation(gen), storage.IfMetaGenerationMatch(mgen))
with
obj.Generation(gen).If(storage.Conditions{MetagenerationMatch: mgen})
Replace
obj.WithConditions(storage.IfGenerationMatch(0))
with
obj.If(storage.Conditions{DoesNotExist: true})
storage.Done
replaced by iterator.Done
(from package google.golang.org/api/iterator
).
October 6, 2016
Package preview/logging deleted. Use logging instead.
September 27, 2016
Logging client replaced with preview version (see below).
September 8, 2016
New clients for some of Google's Machine Learning APIs: Vision, Speech, and Natural Language.
Preview version of a new [Stackdriver Logging][cloud-logging] client in cloud.google.com/go/preview/logging
. This client uses gRPC as its transport layer, and supports log reading, sinks and metrics. It will replace the current client at cloud.google.com/go/logging
shortly.