1// Code generated by smithy-go-codegen DO NOT EDIT.
2
3package servicediscovery
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/servicediscovery/types"
11	"github.com/aws/smithy-go/middleware"
12	smithyhttp "github.com/aws/smithy-go/transport/http"
13)
14
15// Discovers registered instances for a specified namespace and service. You can
16// use DiscoverInstances to discover instances for any type of namespace. For
17// public and private DNS namespaces, you can also use DNS queries to discover
18// instances.
19func (c *Client) DiscoverInstances(ctx context.Context, params *DiscoverInstancesInput, optFns ...func(*Options)) (*DiscoverInstancesOutput, error) {
20	if params == nil {
21		params = &DiscoverInstancesInput{}
22	}
23
24	result, metadata, err := c.invokeOperation(ctx, "DiscoverInstances", params, optFns, addOperationDiscoverInstancesMiddlewares)
25	if err != nil {
26		return nil, err
27	}
28
29	out := result.(*DiscoverInstancesOutput)
30	out.ResultMetadata = metadata
31	return out, nil
32}
33
34type DiscoverInstancesInput struct {
35
36	// The name of the namespace that you specified when you registered the instance.
37	//
38	// This member is required.
39	NamespaceName *string
40
41	// The name of the service that you specified when you registered the instance.
42	//
43	// This member is required.
44	ServiceName *string
45
46	// The health status of the instances that you want to discover.
47	HealthStatus types.HealthStatusFilter
48
49	// The maximum number of instances that you want AWS Cloud Map to return in the
50	// response to a DiscoverInstances request. If you don't specify a value for
51	// MaxResults, AWS Cloud Map returns up to 100 instances.
52	MaxResults *int32
53
54	// Opportunistic filters to scope the results based on custom attributes. If there
55	// are instances that match both the filters specified in both the QueryParameters
56	// parameter and this parameter, they are returned. Otherwise, these filters are
57	// ignored and only instances that match the filters specified in the
58	// QueryParameters parameter are returned.
59	OptionalParameters map[string]string
60
61	// Filters to scope the results based on custom attributes for the instance. For
62	// example, {version=v1, az=1a}. Only instances that match all the specified
63	// key-value pairs will be returned.
64	QueryParameters map[string]string
65}
66
67type DiscoverInstancesOutput struct {
68
69	// A complex type that contains one HttpInstanceSummary for each registered
70	// instance.
71	Instances []types.HttpInstanceSummary
72
73	// Metadata pertaining to the operation's result.
74	ResultMetadata middleware.Metadata
75}
76
77func addOperationDiscoverInstancesMiddlewares(stack *middleware.Stack, options Options) (err error) {
78	err = stack.Serialize.Add(&awsAwsjson11_serializeOpDiscoverInstances{}, middleware.After)
79	if err != nil {
80		return err
81	}
82	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpDiscoverInstances{}, middleware.After)
83	if err != nil {
84		return err
85	}
86	if err = addSetLoggerMiddleware(stack, options); err != nil {
87		return err
88	}
89	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
90		return err
91	}
92	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
93		return err
94	}
95	if err = addResolveEndpointMiddleware(stack, options); err != nil {
96		return err
97	}
98	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
99		return err
100	}
101	if err = addRetryMiddlewares(stack, options); err != nil {
102		return err
103	}
104	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
105		return err
106	}
107	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
108		return err
109	}
110	if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
111		return err
112	}
113	if err = addClientUserAgent(stack); err != nil {
114		return err
115	}
116	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
117		return err
118	}
119	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
120		return err
121	}
122	if err = addEndpointPrefix_opDiscoverInstancesMiddleware(stack); err != nil {
123		return err
124	}
125	if err = addOpDiscoverInstancesValidationMiddleware(stack); err != nil {
126		return err
127	}
128	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDiscoverInstances(options.Region), middleware.Before); err != nil {
129		return err
130	}
131	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
132		return err
133	}
134	if err = addResponseErrorMiddleware(stack); err != nil {
135		return err
136	}
137	if err = addRequestResponseLogging(stack, options); err != nil {
138		return err
139	}
140	return nil
141}
142
143type endpointPrefix_opDiscoverInstancesMiddleware struct {
144}
145
146func (*endpointPrefix_opDiscoverInstancesMiddleware) ID() string {
147	return "EndpointHostPrefix"
148}
149
150func (m *endpointPrefix_opDiscoverInstancesMiddleware) HandleSerialize(ctx context.Context, in middleware.SerializeInput, next middleware.SerializeHandler) (
151	out middleware.SerializeOutput, metadata middleware.Metadata, err error,
152) {
153	if smithyhttp.GetHostnameImmutable(ctx) || smithyhttp.IsEndpointHostPrefixDisabled(ctx) {
154		return next.HandleSerialize(ctx, in)
155	}
156
157	req, ok := in.Request.(*smithyhttp.Request)
158	if !ok {
159		return out, metadata, fmt.Errorf("unknown transport type %T", in.Request)
160	}
161
162	req.URL.Host = "data-" + req.URL.Host
163
164	return next.HandleSerialize(ctx, in)
165}
166func addEndpointPrefix_opDiscoverInstancesMiddleware(stack *middleware.Stack) error {
167	return stack.Serialize.Insert(&endpointPrefix_opDiscoverInstancesMiddleware{}, `OperationSerializer`, middleware.After)
168}
169
170func newServiceMetadataMiddleware_opDiscoverInstances(region string) *awsmiddleware.RegisterServiceMetadata {
171	return &awsmiddleware.RegisterServiceMetadata{
172		Region:        region,
173		ServiceID:     ServiceID,
174		SigningName:   "servicediscovery",
175		OperationName: "DiscoverInstances",
176	}
177}
178