1// Code generated by smithy-go-codegen DO NOT EDIT.
2
3package ec2
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/ec2/types"
11	"github.com/aws/smithy-go/middleware"
12	smithyhttp "github.com/aws/smithy-go/transport/http"
13)
14
15// Describes one or more of your internet gateways.
16func (c *Client) DescribeInternetGateways(ctx context.Context, params *DescribeInternetGatewaysInput, optFns ...func(*Options)) (*DescribeInternetGatewaysOutput, error) {
17	if params == nil {
18		params = &DescribeInternetGatewaysInput{}
19	}
20
21	result, metadata, err := c.invokeOperation(ctx, "DescribeInternetGateways", params, optFns, addOperationDescribeInternetGatewaysMiddlewares)
22	if err != nil {
23		return nil, err
24	}
25
26	out := result.(*DescribeInternetGatewaysOutput)
27	out.ResultMetadata = metadata
28	return out, nil
29}
30
31type DescribeInternetGatewaysInput struct {
32
33	// Checks whether you have the required permissions for the action, without
34	// actually making the request, and provides an error response. If you have the
35	// required permissions, the error response is DryRunOperation. Otherwise, it is
36	// UnauthorizedOperation.
37	DryRun bool
38
39	// One or more filters.
40	//
41	// * attachment.state - The current state of the attachment
42	// between the gateway and the VPC (available). Present only if a VPC is
43	// attached.
44	//
45	// * attachment.vpc-id - The ID of an attached VPC.
46	//
47	// *
48	// internet-gateway-id - The ID of the Internet gateway.
49	//
50	// * owner-id - The ID of
51	// the AWS account that owns the internet gateway.
52	//
53	// * tag: - The key/value
54	// combination of a tag assigned to the resource. Use the tag key in the filter
55	// name and the tag value as the filter value. For example, to find all resources
56	// that have a tag with the key Owner and the value TeamA, specify tag:Owner for
57	// the filter name and TeamA for the filter value.
58	//
59	// * tag-key - The key of a tag
60	// assigned to the resource. Use this filter to find all resources assigned a tag
61	// with a specific key, regardless of the tag value.
62	Filters []types.Filter
63
64	// One or more internet gateway IDs. Default: Describes all your internet gateways.
65	InternetGatewayIds []string
66
67	// The maximum number of results to return with a single call. To retrieve the
68	// remaining results, make another call with the returned nextToken value.
69	MaxResults int32
70
71	// The token for the next page of results.
72	NextToken *string
73}
74
75type DescribeInternetGatewaysOutput struct {
76
77	// Information about one or more internet gateways.
78	InternetGateways []types.InternetGateway
79
80	// The token to use to retrieve the next page of results. This value is null when
81	// there are no more results to return.
82	NextToken *string
83
84	// Metadata pertaining to the operation's result.
85	ResultMetadata middleware.Metadata
86}
87
88func addOperationDescribeInternetGatewaysMiddlewares(stack *middleware.Stack, options Options) (err error) {
89	err = stack.Serialize.Add(&awsEc2query_serializeOpDescribeInternetGateways{}, middleware.After)
90	if err != nil {
91		return err
92	}
93	err = stack.Deserialize.Add(&awsEc2query_deserializeOpDescribeInternetGateways{}, middleware.After)
94	if err != nil {
95		return err
96	}
97	if err = addSetLoggerMiddleware(stack, options); err != nil {
98		return err
99	}
100	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
101		return err
102	}
103	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
104		return err
105	}
106	if err = addResolveEndpointMiddleware(stack, options); err != nil {
107		return err
108	}
109	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
110		return err
111	}
112	if err = addRetryMiddlewares(stack, options); err != nil {
113		return err
114	}
115	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
116		return err
117	}
118	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
119		return err
120	}
121	if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
122		return err
123	}
124	if err = addClientUserAgent(stack); err != nil {
125		return err
126	}
127	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
128		return err
129	}
130	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
131		return err
132	}
133	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeInternetGateways(options.Region), middleware.Before); err != nil {
134		return err
135	}
136	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
137		return err
138	}
139	if err = addResponseErrorMiddleware(stack); err != nil {
140		return err
141	}
142	if err = addRequestResponseLogging(stack, options); err != nil {
143		return err
144	}
145	return nil
146}
147
148// DescribeInternetGatewaysAPIClient is a client that implements the
149// DescribeInternetGateways operation.
150type DescribeInternetGatewaysAPIClient interface {
151	DescribeInternetGateways(context.Context, *DescribeInternetGatewaysInput, ...func(*Options)) (*DescribeInternetGatewaysOutput, error)
152}
153
154var _ DescribeInternetGatewaysAPIClient = (*Client)(nil)
155
156// DescribeInternetGatewaysPaginatorOptions is the paginator options for
157// DescribeInternetGateways
158type DescribeInternetGatewaysPaginatorOptions struct {
159	// The maximum number of results to return with a single call. To retrieve the
160	// remaining results, make another call with the returned nextToken value.
161	Limit int32
162
163	// Set to true if pagination should stop if the service returns a pagination token
164	// that matches the most recent token provided to the service.
165	StopOnDuplicateToken bool
166}
167
168// DescribeInternetGatewaysPaginator is a paginator for DescribeInternetGateways
169type DescribeInternetGatewaysPaginator struct {
170	options   DescribeInternetGatewaysPaginatorOptions
171	client    DescribeInternetGatewaysAPIClient
172	params    *DescribeInternetGatewaysInput
173	nextToken *string
174	firstPage bool
175}
176
177// NewDescribeInternetGatewaysPaginator returns a new
178// DescribeInternetGatewaysPaginator
179func NewDescribeInternetGatewaysPaginator(client DescribeInternetGatewaysAPIClient, params *DescribeInternetGatewaysInput, optFns ...func(*DescribeInternetGatewaysPaginatorOptions)) *DescribeInternetGatewaysPaginator {
180	options := DescribeInternetGatewaysPaginatorOptions{}
181	if params.MaxResults != 0 {
182		options.Limit = params.MaxResults
183	}
184
185	for _, fn := range optFns {
186		fn(&options)
187	}
188
189	if params == nil {
190		params = &DescribeInternetGatewaysInput{}
191	}
192
193	return &DescribeInternetGatewaysPaginator{
194		options:   options,
195		client:    client,
196		params:    params,
197		firstPage: true,
198	}
199}
200
201// HasMorePages returns a boolean indicating whether more pages are available
202func (p *DescribeInternetGatewaysPaginator) HasMorePages() bool {
203	return p.firstPage || p.nextToken != nil
204}
205
206// NextPage retrieves the next DescribeInternetGateways page.
207func (p *DescribeInternetGatewaysPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*DescribeInternetGatewaysOutput, error) {
208	if !p.HasMorePages() {
209		return nil, fmt.Errorf("no more pages available")
210	}
211
212	params := *p.params
213	params.NextToken = p.nextToken
214
215	params.MaxResults = p.options.Limit
216
217	result, err := p.client.DescribeInternetGateways(ctx, &params, optFns...)
218	if err != nil {
219		return nil, err
220	}
221	p.firstPage = false
222
223	prevToken := p.nextToken
224	p.nextToken = result.NextToken
225
226	if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken {
227		p.nextToken = nil
228	}
229
230	return result, nil
231}
232
233func newServiceMetadataMiddleware_opDescribeInternetGateways(region string) *awsmiddleware.RegisterServiceMetadata {
234	return &awsmiddleware.RegisterServiceMetadata{
235		Region:        region,
236		ServiceID:     ServiceID,
237		SigningName:   "ec2",
238		OperationName: "DescribeInternetGateways",
239	}
240}
241