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package imds
import (
"context"
"fmt"
"io"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
const getDynamicDataPath = "/latest/dynamic"
// GetDynamicData uses the path provided to request information from the EC2
// instance metadata service for dynamic data. The content will be returned
// as a string, or error if the request failed.
func (c *Client) GetDynamicData(ctx context.Context, params *GetDynamicDataInput, optFns ...func(*Options)) (*GetDynamicDataOutput, error) {
if params == nil {
params = &GetDynamicDataInput{}
}
result, metadata, err := c.invokeOperation(ctx, "GetDynamicData", params, optFns,
addGetDynamicDataMiddleware,
)
if err != nil {
return nil, err
}
out := result.(*GetDynamicDataOutput)
out.ResultMetadata = metadata
return out, nil
}
// GetDynamicDataInput provides the input parameters for the GetDynamicData
// operation.
type GetDynamicDataInput struct {
// The relative dynamic data path to retrieve. Can be empty string to
// retrieve a response containing a new line separated list of dynamic data
// resources available.
//
// Must not include the dynamic data base path.
//
// May include leading slash. If Path includes trailing slash the trailing
// slash will be included in the request for the resource.
Path string
}
// GetDynamicDataOutput provides the output parameters for the GetDynamicData
// operation.
type GetDynamicDataOutput struct {
Content io.ReadCloser
ResultMetadata middleware.Metadata
}
func addGetDynamicDataMiddleware(stack *middleware.Stack, options Options) error {
return addAPIRequestMiddleware(stack,
options,
buildGetDynamicDataPath,
buildGetDynamicDataOutput)
}
func buildGetDynamicDataPath(params interface{}) (string, error) {
p, ok := params.(*GetDynamicDataInput)
if !ok {
return "", fmt.Errorf("unknown parameter type %T", params)
}
return appendURIPath(getDynamicDataPath, p.Path), nil
}
func buildGetDynamicDataOutput(resp *smithyhttp.Response) (interface{}, error) {
return &GetDynamicDataOutput{
Content: resp.Body,
}, nil
}
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