firestore

package
v1.9.0 Latest Latest
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 Go to latest Published: Nov 30, 2022 License: Apache-2.0 Imports: 17 Imported by: 0

Documentation

Overview

Package firestore is an auto-generated package for the Cloud Firestore API.

Accesses the NoSQL document database built for automatic scaling, high performance, and ease of application development. 

NOTE: This package is in beta. It is not stable, and may be subject to changes.

Use of Context

The ctx passed to NewClient is used for authentication requests and for creating the underlying connection, but is not used for subsequent calls. Individual methods on the client use the ctx given to them.

To close the open connection, use the Close() method.

For information about setting deadlines, reusing contexts, and more please visit godoc.org/cloud.google.com/go.

Deprecated: Please use "cloud.google.com/go/firestore/apiv1". This beta client will be removed in a future release.

Index

Examples

Constants

This section is empty.

Variables

This section is empty.

Functions

func DefaultAuthScopes 

func DefaultAuthScopes() []string

DefaultAuthScopes reports the default set of authentication scopes to use with this package.

Types

type CallOptions 

type CallOptions struct {
	GetDocument       []gax.CallOption
	ListDocuments     []gax.CallOption
	CreateDocument    []gax.CallOption
	UpdateDocument    []gax.CallOption
	DeleteDocument    []gax.CallOption
	BatchGetDocuments []gax.CallOption
	BeginTransaction  []gax.CallOption
	Commit            []gax.CallOption
	Rollback          []gax.CallOption
	RunQuery          []gax.CallOption
	Write             []gax.CallOption
	Listen            []gax.CallOption
	ListCollectionIds []gax.CallOption
}

CallOptions contains the retry settings for each method of Client.

type Client 

type Client struct {

	// The call options for this service.
	CallOptions *CallOptions
	// contains filtered or unexported fields
}

Client is a client for interacting with Cloud Firestore API.

Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.

func NewClient 

func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error)

NewClient creates a new firestore client.

The Cloud Firestore service.

This service exposes several types of comparable timestamps: 

create_time - The time at which a document was created. Changes only
when a document is deleted, then re-created. Increases in a strict
monotonic fashion.

update_time - The time at which a document was last updated. Changes
every time a document is modified. Does not change when a write results
in no modifications. Increases in a strict monotonic fashion.

read_time - The time at which a particular state was observed. Used
to denote a consistent snapshot of the database or the time at which a
Document was observed to not exist.

commit_time - The time at which the writes in a transaction were
committed. Any read with an equal or greater read_time is guaranteed
to see the effects of the transaction.
Example 
package main

import (
	"context"

	firestore "cloud.google.com/go/firestore/apiv1beta1"
)

func main() {
	ctx := context.Background()
	c, err := firestore.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use client.
	_ = c
}

Output:

func (*Client) BatchGetDocuments 

func (c *Client) BatchGetDocuments(ctx context.Context, req *firestorepb.BatchGetDocumentsRequest, opts ...gax.CallOption) (firestorepb.Firestore_BatchGetDocumentsClient, error)

BatchGetDocuments gets multiple documents.

Documents returned by this method are not guaranteed to be returned in the same order that they were requested.

func (*Client) BeginTransaction 

func (c *Client) BeginTransaction(ctx context.Context, req *firestorepb.BeginTransactionRequest, opts ...gax.CallOption) (*firestorepb.BeginTransactionResponse, error)

BeginTransaction starts a new transaction.

Example 
package main

import (
	"context"

	firestore "cloud.google.com/go/firestore/apiv1beta1"

	firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"
)

func main() {
	// import firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"

	ctx := context.Background()
	c, err := firestore.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &firestorepb.BeginTransactionRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.BeginTransaction(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

Output:

func (*Client) Close 

func (c *Client) Close() error

Close closes the connection to the API service. The user should invoke this when the client is no longer required.

func (*Client) Commit 

func (c *Client) Commit(ctx context.Context, req *firestorepb.CommitRequest, opts ...gax.CallOption) (*firestorepb.CommitResponse, error)

Commit commits a transaction, while optionally updating documents.

Example 
package main

import (
	"context"

	firestore "cloud.google.com/go/firestore/apiv1beta1"

	firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"
)

func main() {
	// import firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"

	ctx := context.Background()
	c, err := firestore.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &firestorepb.CommitRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.Commit(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

Output:

func (*Client) Connection 

func (c *Client) Connection() *grpc.ClientConn

Connection returns a connection to the API service.

Deprecated.

func (*Client) CreateDocument 

func (c *Client) CreateDocument(ctx context.Context, req *firestorepb.CreateDocumentRequest, opts ...gax.CallOption) (*firestorepb.Document, error)

CreateDocument creates a new document.

Example 
package main

import (
	"context"

	firestore "cloud.google.com/go/firestore/apiv1beta1"

	firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"
)

func main() {
	// import firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"

	ctx := context.Background()
	c, err := firestore.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &firestorepb.CreateDocumentRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.CreateDocument(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

Output:

func (*Client) DeleteDocument 

func (c *Client) DeleteDocument(ctx context.Context, req *firestorepb.DeleteDocumentRequest, opts ...gax.CallOption) error

DeleteDocument deletes a document.

Example 
package main

import (
	"context"

	firestore "cloud.google.com/go/firestore/apiv1beta1"

	firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"
)

func main() {
	ctx := context.Background()
	c, err := firestore.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &firestorepb.DeleteDocumentRequest{
		// TODO: Fill request struct fields.
	}
	err = c.DeleteDocument(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
}

Output:

func (*Client) GetDocument 

func (c *Client) GetDocument(ctx context.Context, req *firestorepb.GetDocumentRequest, opts ...gax.CallOption) (*firestorepb.Document, error)

GetDocument gets a single document.

Example 
package main

import (
	"context"

	firestore "cloud.google.com/go/firestore/apiv1beta1"

	firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"
)

func main() {
	// import firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"

	ctx := context.Background()
	c, err := firestore.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &firestorepb.GetDocumentRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.GetDocument(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

Output:

func (*Client) ListCollectionIds 

func (c *Client) ListCollectionIds(ctx context.Context, req *firestorepb.ListCollectionIdsRequest, opts ...gax.CallOption) *StringIterator

ListCollectionIds lists all the collection IDs underneath a document.

Example 
package main

import (
	"context"

	firestore "cloud.google.com/go/firestore/apiv1beta1"
	"google.golang.org/api/iterator"

	firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"
)

func main() {
	// import firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"
	// import "google.golang.org/api/iterator"

	ctx := context.Background()
	c, err := firestore.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &firestorepb.ListCollectionIdsRequest{
		// TODO: Fill request struct fields.
	}
	it := c.ListCollectionIds(ctx, req)
	for {
		resp, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			// TODO: Handle error.
		}
		// TODO: Use resp.
		_ = resp
	}
}

Output:

func (*Client) ListDocuments 

func (c *Client) ListDocuments(ctx context.Context, req *firestorepb.ListDocumentsRequest, opts ...gax.CallOption) *DocumentIterator

ListDocuments lists documents.

Example 
package main

import (
	"context"

	firestore "cloud.google.com/go/firestore/apiv1beta1"
	"google.golang.org/api/iterator"

	firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"
)

func main() {
	// import firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"
	// import "google.golang.org/api/iterator"

	ctx := context.Background()
	c, err := firestore.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &firestorepb.ListDocumentsRequest{
		// TODO: Fill request struct fields.
	}
	it := c.ListDocuments(ctx, req)
	for {
		resp, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			// TODO: Handle error.
		}
		// TODO: Use resp.
		_ = resp
	}
}

Output:

func (*Client) Listen 

func (c *Client) Listen(ctx context.Context, opts ...gax.CallOption) (firestorepb.Firestore_ListenClient, error)

Listen listens to changes.

Example 
package main

import (
	"context"
	"io"

	firestore "cloud.google.com/go/firestore/apiv1beta1"

	firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"
)

func main() {
	// import firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"

	ctx := context.Background()
	c, err := firestore.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	stream, err := c.Listen(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	go func() {
		reqs := []*firestorepb.ListenRequest{
			// TODO: Create requests.
		}
		for _, req := range reqs {
			if err := stream.Send(req); err != nil {
				// TODO: Handle error.
			}
		}
		stream.CloseSend()
	}()
	for {
		resp, err := stream.Recv()
		if err == io.EOF {
			break
		}
		if err != nil {
			// TODO: handle error.
		}
		// TODO: Use resp.
		_ = resp
	}
}

Output:

func (*Client) Rollback 

func (c *Client) Rollback(ctx context.Context, req *firestorepb.RollbackRequest, opts ...gax.CallOption) error

Rollback rolls back a transaction.

Example 
package main

import (
	"context"

	firestore "cloud.google.com/go/firestore/apiv1beta1"

	firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"
)

func main() {
	ctx := context.Background()
	c, err := firestore.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &firestorepb.RollbackRequest{
		// TODO: Fill request struct fields.
	}
	err = c.Rollback(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
}

Output:

func (*Client) RunQuery 

func (c *Client) RunQuery(ctx context.Context, req *firestorepb.RunQueryRequest, opts ...gax.CallOption) (firestorepb.Firestore_RunQueryClient, error)

RunQuery runs a query.

func (*Client) SetGoogleClientInfo 

func (c *Client) SetGoogleClientInfo(keyval ...string)

SetGoogleClientInfo sets the name and version of the application in the `x-goog-api-client` header passed on each request. Also passes any provided key-value pairs. Intended for use by Google-written clients.

Internal use only.

func (*Client) UpdateDocument 

func (c *Client) UpdateDocument(ctx context.Context, req *firestorepb.UpdateDocumentRequest, opts ...gax.CallOption) (*firestorepb.Document, error)

UpdateDocument updates or inserts a document.

Example 
package main

import (
	"context"

	firestore "cloud.google.com/go/firestore/apiv1beta1"

	firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"
)

func main() {
	// import firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"

	ctx := context.Background()
	c, err := firestore.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &firestorepb.UpdateDocumentRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.UpdateDocument(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

Output:

func (*Client) Write 

func (c *Client) Write(ctx context.Context, opts ...gax.CallOption) (firestorepb.Firestore_WriteClient, error)

Write streams batches of document updates and deletes, in order.

Example 
package main

import (
	"context"
	"io"

	firestore "cloud.google.com/go/firestore/apiv1beta1"

	firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"
)

func main() {
	// import firestorepb "google.golang.org/genproto/googleapis/firestore/v1beta1"

	ctx := context.Background()
	c, err := firestore.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	stream, err := c.Write(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	go func() {
		reqs := []*firestorepb.WriteRequest{
			// TODO: Create requests.
		}
		for _, req := range reqs {
			if err := stream.Send(req); err != nil {
				// TODO: Handle error.
			}
		}
		stream.CloseSend()
	}()
	for {
		resp, err := stream.Recv()
		if err == io.EOF {
			break
		}
		if err != nil {
			// TODO: handle error.
		}
		// TODO: Use resp.
		_ = resp
	}
}

Output:

type DocumentIterator 

type DocumentIterator struct {

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*firestorepb.Document, nextPageToken string, err error)
	// contains filtered or unexported fields
}

DocumentIterator manages a stream of *firestorepb.Document.

func (*DocumentIterator) Next 

func (it *DocumentIterator) Next() (*firestorepb.Document, error)

Next returns the next result. Its second return value is iterator.Done if there are no more results. Once Next returns Done, all subsequent calls will return Done.

func (*DocumentIterator) PageInfo 

func (it *DocumentIterator) PageInfo() *iterator.PageInfo

PageInfo supports pagination. See the google.golang.org/api/iterator package for details.

type StringIterator 

type StringIterator struct {

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []string, nextPageToken string, err error)
	// contains filtered or unexported fields
}

StringIterator manages a stream of string.

func (*StringIterator) Next 

func (it *StringIterator) Next() (string, error)

Next returns the next result. Its second return value is iterator.Done if there are no more results. Once Next returns Done, all subsequent calls will return Done.

func (*StringIterator) PageInfo 

func (it *StringIterator) PageInfo() *iterator.PageInfo

PageInfo supports pagination. See the google.golang.org/api/iterator package for details.

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