api_op_GetInstanceIdentityDocument.go raw

   1  package imds
   2  
   3  import (
   4  	"context"
   5  	"encoding/json"
   6  	"fmt"
   7  	"io"
   8  	"time"
   9  
  10  	"github.com/aws/smithy-go"
  11  	smithyio "github.com/aws/smithy-go/io"
  12  	"github.com/aws/smithy-go/middleware"
  13  	smithyhttp "github.com/aws/smithy-go/transport/http"
  14  )
  15  
  16  const getInstanceIdentityDocumentPath = getDynamicDataPath + "/instance-identity/document"
  17  
  18  // GetInstanceIdentityDocument retrieves an identity document describing an
  19  // instance. Error is returned if the request fails or is unable to parse
  20  // the response.
  21  func (c *Client) GetInstanceIdentityDocument(
  22  	ctx context.Context, params *GetInstanceIdentityDocumentInput, optFns ...func(*Options),
  23  ) (
  24  	*GetInstanceIdentityDocumentOutput, error,
  25  ) {
  26  	if params == nil {
  27  		params = &GetInstanceIdentityDocumentInput{}
  28  	}
  29  
  30  	result, metadata, err := c.invokeOperation(ctx, "GetInstanceIdentityDocument", params, optFns,
  31  		addGetInstanceIdentityDocumentMiddleware,
  32  	)
  33  	if err != nil {
  34  		return nil, err
  35  	}
  36  
  37  	out := result.(*GetInstanceIdentityDocumentOutput)
  38  	out.ResultMetadata = metadata
  39  	return out, nil
  40  }
  41  
  42  // GetInstanceIdentityDocumentInput provides the input parameters for
  43  // GetInstanceIdentityDocument operation.
  44  type GetInstanceIdentityDocumentInput struct{}
  45  
  46  // GetInstanceIdentityDocumentOutput provides the output parameters for
  47  // GetInstanceIdentityDocument operation.
  48  type GetInstanceIdentityDocumentOutput struct {
  49  	InstanceIdentityDocument
  50  
  51  	ResultMetadata middleware.Metadata
  52  }
  53  
  54  func addGetInstanceIdentityDocumentMiddleware(stack *middleware.Stack, options Options) error {
  55  	return addAPIRequestMiddleware(stack,
  56  		options,
  57  		"GetInstanceIdentityDocument",
  58  		buildGetInstanceIdentityDocumentPath,
  59  		buildGetInstanceIdentityDocumentOutput,
  60  	)
  61  }
  62  
  63  func buildGetInstanceIdentityDocumentPath(params interface{}) (string, error) {
  64  	return getInstanceIdentityDocumentPath, nil
  65  }
  66  
  67  func buildGetInstanceIdentityDocumentOutput(resp *smithyhttp.Response) (v interface{}, err error) {
  68  	defer func() {
  69  		closeErr := resp.Body.Close()
  70  		if err == nil {
  71  			err = closeErr
  72  		} else if closeErr != nil {
  73  			err = fmt.Errorf("response body close error: %v, original error: %w", closeErr, err)
  74  		}
  75  	}()
  76  
  77  	var buff [1024]byte
  78  	ringBuffer := smithyio.NewRingBuffer(buff[:])
  79  	body := io.TeeReader(resp.Body, ringBuffer)
  80  
  81  	output := &GetInstanceIdentityDocumentOutput{}
  82  	if err = json.NewDecoder(body).Decode(&output.InstanceIdentityDocument); err != nil {
  83  		return nil, &smithy.DeserializationError{
  84  			Err:      fmt.Errorf("failed to decode instance identity document, %w", err),
  85  			Snapshot: ringBuffer.Bytes(),
  86  		}
  87  	}
  88  
  89  	return output, nil
  90  }
  91  
  92  // InstanceIdentityDocument provides the shape for unmarshaling
  93  // an instance identity document
  94  type InstanceIdentityDocument struct {
  95  	DevpayProductCodes      []string  `json:"devpayProductCodes"`
  96  	MarketplaceProductCodes []string  `json:"marketplaceProductCodes"`
  97  	AvailabilityZone        string    `json:"availabilityZone"`
  98  	PrivateIP               string    `json:"privateIp"`
  99  	Version                 string    `json:"version"`
 100  	Region                  string    `json:"region"`
 101  	InstanceID              string    `json:"instanceId"`
 102  	BillingProducts         []string  `json:"billingProducts"`
 103  	InstanceType            string    `json:"instanceType"`
 104  	AccountID               string    `json:"accountId"`
 105  	PendingTime             time.Time `json:"pendingTime"`
 106  	ImageID                 string    `json:"imageId"`
 107  	KernelID                string    `json:"kernelId"`
 108  	RamdiskID               string    `json:"ramdiskId"`
 109  	Architecture            string    `json:"architecture"`
 110  }
 111