1// Code generated by smithy-go-codegen DO NOT EDIT.
2
3package health
4
5import (
6	"context"
7	"fmt"
8	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
9	"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
10	"github.com/aws/aws-sdk-go-v2/service/health/types"
11	"github.com/aws/smithy-go/middleware"
12	smithyhttp "github.com/aws/smithy-go/transport/http"
13)
14
15// Returns the number of events of each event type (issue, scheduled change, and
16// account notification). If no filter is specified, the counts of all events in
17// each category are returned. This API operation uses pagination. Specify the
18// nextToken parameter in the next request to return more results.
19func (c *Client) DescribeEventAggregates(ctx context.Context, params *DescribeEventAggregatesInput, optFns ...func(*Options)) (*DescribeEventAggregatesOutput, error) {
20	if params == nil {
21		params = &DescribeEventAggregatesInput{}
22	}
23
24	result, metadata, err := c.invokeOperation(ctx, "DescribeEventAggregates", params, optFns, addOperationDescribeEventAggregatesMiddlewares)
25	if err != nil {
26		return nil, err
27	}
28
29	out := result.(*DescribeEventAggregatesOutput)
30	out.ResultMetadata = metadata
31	return out, nil
32}
33
34type DescribeEventAggregatesInput struct {
35
36	// The only currently supported value is eventTypeCategory.
37	//
38	// This member is required.
39	AggregateField types.EventAggregateField
40
41	// Values to narrow the results returned.
42	Filter *types.EventFilter
43
44	// The maximum number of items to return in one batch, between 10 and 100,
45	// inclusive.
46	MaxResults *int32
47
48	// If the results of a search are large, only a portion of the results are
49	// returned, and a nextToken pagination token is returned in the response. To
50	// retrieve the next batch of results, reissue the search request and include the
51	// returned token. When all results have been returned, the response does not
52	// contain a pagination token value.
53	NextToken *string
54}
55
56type DescribeEventAggregatesOutput struct {
57
58	// The number of events in each category that meet the optional filter criteria.
59	EventAggregates []types.EventAggregate
60
61	// If the results of a search are large, only a portion of the results are
62	// returned, and a nextToken pagination token is returned in the response. To
63	// retrieve the next batch of results, reissue the search request and include the
64	// returned token. When all results have been returned, the response does not
65	// contain a pagination token value.
66	NextToken *string
67
68	// Metadata pertaining to the operation's result.
69	ResultMetadata middleware.Metadata
70}
71
72func addOperationDescribeEventAggregatesMiddlewares(stack *middleware.Stack, options Options) (err error) {
73	err = stack.Serialize.Add(&awsAwsjson11_serializeOpDescribeEventAggregates{}, middleware.After)
74	if err != nil {
75		return err
76	}
77	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpDescribeEventAggregates{}, middleware.After)
78	if err != nil {
79		return err
80	}
81	if err = addSetLoggerMiddleware(stack, options); err != nil {
82		return err
83	}
84	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
85		return err
86	}
87	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
88		return err
89	}
90	if err = addResolveEndpointMiddleware(stack, options); err != nil {
91		return err
92	}
93	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
94		return err
95	}
96	if err = addRetryMiddlewares(stack, options); err != nil {
97		return err
98	}
99	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
100		return err
101	}
102	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
103		return err
104	}
105	if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
106		return err
107	}
108	if err = addClientUserAgent(stack); err != nil {
109		return err
110	}
111	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
112		return err
113	}
114	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
115		return err
116	}
117	if err = addOpDescribeEventAggregatesValidationMiddleware(stack); err != nil {
118		return err
119	}
120	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeEventAggregates(options.Region), middleware.Before); err != nil {
121		return err
122	}
123	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
124		return err
125	}
126	if err = addResponseErrorMiddleware(stack); err != nil {
127		return err
128	}
129	if err = addRequestResponseLogging(stack, options); err != nil {
130		return err
131	}
132	return nil
133}
134
135// DescribeEventAggregatesAPIClient is a client that implements the
136// DescribeEventAggregates operation.
137type DescribeEventAggregatesAPIClient interface {
138	DescribeEventAggregates(context.Context, *DescribeEventAggregatesInput, ...func(*Options)) (*DescribeEventAggregatesOutput, error)
139}
140
141var _ DescribeEventAggregatesAPIClient = (*Client)(nil)
142
143// DescribeEventAggregatesPaginatorOptions is the paginator options for
144// DescribeEventAggregates
145type DescribeEventAggregatesPaginatorOptions struct {
146	// The maximum number of items to return in one batch, between 10 and 100,
147	// inclusive.
148	Limit int32
149
150	// Set to true if pagination should stop if the service returns a pagination token
151	// that matches the most recent token provided to the service.
152	StopOnDuplicateToken bool
153}
154
155// DescribeEventAggregatesPaginator is a paginator for DescribeEventAggregates
156type DescribeEventAggregatesPaginator struct {
157	options   DescribeEventAggregatesPaginatorOptions
158	client    DescribeEventAggregatesAPIClient
159	params    *DescribeEventAggregatesInput
160	nextToken *string
161	firstPage bool
162}
163
164// NewDescribeEventAggregatesPaginator returns a new
165// DescribeEventAggregatesPaginator
166func NewDescribeEventAggregatesPaginator(client DescribeEventAggregatesAPIClient, params *DescribeEventAggregatesInput, optFns ...func(*DescribeEventAggregatesPaginatorOptions)) *DescribeEventAggregatesPaginator {
167	if params == nil {
168		params = &DescribeEventAggregatesInput{}
169	}
170
171	options := DescribeEventAggregatesPaginatorOptions{}
172	if params.MaxResults != nil {
173		options.Limit = *params.MaxResults
174	}
175
176	for _, fn := range optFns {
177		fn(&options)
178	}
179
180	return &DescribeEventAggregatesPaginator{
181		options:   options,
182		client:    client,
183		params:    params,
184		firstPage: true,
185	}
186}
187
188// HasMorePages returns a boolean indicating whether more pages are available
189func (p *DescribeEventAggregatesPaginator) HasMorePages() bool {
190	return p.firstPage || p.nextToken != nil
191}
192
193// NextPage retrieves the next DescribeEventAggregates page.
194func (p *DescribeEventAggregatesPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*DescribeEventAggregatesOutput, error) {
195	if !p.HasMorePages() {
196		return nil, fmt.Errorf("no more pages available")
197	}
198
199	params := *p.params
200	params.NextToken = p.nextToken
201
202	var limit *int32
203	if p.options.Limit > 0 {
204		limit = &p.options.Limit
205	}
206	params.MaxResults = limit
207
208	result, err := p.client.DescribeEventAggregates(ctx, &params, optFns...)
209	if err != nil {
210		return nil, err
211	}
212	p.firstPage = false
213
214	prevToken := p.nextToken
215	p.nextToken = result.NextToken
216
217	if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken {
218		p.nextToken = nil
219	}
220
221	return result, nil
222}
223
224func newServiceMetadataMiddleware_opDescribeEventAggregates(region string) *awsmiddleware.RegisterServiceMetadata {
225	return &awsmiddleware.RegisterServiceMetadata{
226		Region:        region,
227		ServiceID:     ServiceID,
228		SigningName:   "health",
229		OperationName: "DescribeEventAggregates",
230	}
231}
232