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92 lines
3 KiB
Go
92 lines
3 KiB
Go
// Package restjson provides RESTful JSON serialization of AWS
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// requests and responses.
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package restjson
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//go:generate go run -tags codegen ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/input/rest-json.json build_test.go
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//go:generate go run -tags codegen ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/output/rest-json.json unmarshal_test.go
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import (
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"encoding/json"
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"io/ioutil"
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"strings"
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"github.com/aws/aws-sdk-go/aws/awserr"
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"github.com/aws/aws-sdk-go/aws/request"
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"github.com/aws/aws-sdk-go/private/protocol/jsonrpc"
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"github.com/aws/aws-sdk-go/private/protocol/rest"
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)
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// BuildHandler is a named request handler for building restjson protocol requests
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var BuildHandler = request.NamedHandler{Name: "awssdk.restjson.Build", Fn: Build}
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// UnmarshalHandler is a named request handler for unmarshaling restjson protocol requests
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var UnmarshalHandler = request.NamedHandler{Name: "awssdk.restjson.Unmarshal", Fn: Unmarshal}
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// UnmarshalMetaHandler is a named request handler for unmarshaling restjson protocol request metadata
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var UnmarshalMetaHandler = request.NamedHandler{Name: "awssdk.restjson.UnmarshalMeta", Fn: UnmarshalMeta}
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// UnmarshalErrorHandler is a named request handler for unmarshaling restjson protocol request errors
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var UnmarshalErrorHandler = request.NamedHandler{Name: "awssdk.restjson.UnmarshalError", Fn: UnmarshalError}
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// Build builds a request for the REST JSON protocol.
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func Build(r *request.Request) {
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rest.Build(r)
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if t := rest.PayloadType(r.Params); t == "structure" || t == "" {
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jsonrpc.Build(r)
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}
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}
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// Unmarshal unmarshals a response body for the REST JSON protocol.
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func Unmarshal(r *request.Request) {
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if t := rest.PayloadType(r.Data); t == "structure" || t == "" {
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jsonrpc.Unmarshal(r)
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} else {
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rest.Unmarshal(r)
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}
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}
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// UnmarshalMeta unmarshals response headers for the REST JSON protocol.
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func UnmarshalMeta(r *request.Request) {
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rest.UnmarshalMeta(r)
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}
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// UnmarshalError unmarshals a response error for the REST JSON protocol.
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func UnmarshalError(r *request.Request) {
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defer r.HTTPResponse.Body.Close()
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code := r.HTTPResponse.Header.Get("X-Amzn-Errortype")
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bodyBytes, err := ioutil.ReadAll(r.HTTPResponse.Body)
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if err != nil {
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r.Error = awserr.New("SerializationError", "failed reading REST JSON error response", err)
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return
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}
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if len(bodyBytes) == 0 {
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r.Error = awserr.NewRequestFailure(
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awserr.New("SerializationError", r.HTTPResponse.Status, nil),
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r.HTTPResponse.StatusCode,
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"",
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)
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return
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}
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var jsonErr jsonErrorResponse
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if err := json.Unmarshal(bodyBytes, &jsonErr); err != nil {
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r.Error = awserr.New("SerializationError", "failed decoding REST JSON error response", err)
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return
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}
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if code == "" {
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code = jsonErr.Code
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}
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code = strings.SplitN(code, ":", 2)[0]
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r.Error = awserr.NewRequestFailure(
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awserr.New(code, jsonErr.Message, nil),
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r.HTTPResponse.StatusCode,
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r.RequestID,
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)
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}
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type jsonErrorResponse struct {
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Code string `json:"code"`
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Message string `json:"message"`
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}
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