Vendor main dependencies.
This commit is contained in:
Timo Reimann
parent
49a09ab7dd
commit
dd5e3fba01
2738 changed files with 1045689 additions and 0 deletions
433
vendor/github.com/Azure/go-autorest/autorest/preparer.go
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vendored
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433
vendor/github.com/Azure/go-autorest/autorest/preparer.go
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package autorest
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io"
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"io/ioutil"
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"mime/multipart"
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"net/http"
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"net/url"
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"strings"
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)
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const (
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mimeTypeJSON = "application/json"
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mimeTypeFormPost = "application/x-www-form-urlencoded"
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headerAuthorization = "Authorization"
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headerContentType = "Content-Type"
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headerUserAgent = "User-Agent"
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)
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// Preparer is the interface that wraps the Prepare method.
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//
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// Prepare accepts and possibly modifies an http.Request (e.g., adding Headers). Implementations
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// must ensure to not share or hold per-invocation state since Preparers may be shared and re-used.
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type Preparer interface {
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Prepare(*http.Request) (*http.Request, error)
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}
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// PreparerFunc is a method that implements the Preparer interface.
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type PreparerFunc func(*http.Request) (*http.Request, error)
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// Prepare implements the Preparer interface on PreparerFunc.
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func (pf PreparerFunc) Prepare(r *http.Request) (*http.Request, error) {
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return pf(r)
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}
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// PrepareDecorator takes and possibly decorates, by wrapping, a Preparer. Decorators may affect the
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// http.Request and pass it along or, first, pass the http.Request along then affect the result.
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type PrepareDecorator func(Preparer) Preparer
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// CreatePreparer creates, decorates, and returns a Preparer.
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// Without decorators, the returned Preparer returns the passed http.Request unmodified.
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// Preparers are safe to share and re-use.
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func CreatePreparer(decorators ...PrepareDecorator) Preparer {
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return DecoratePreparer(
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Preparer(PreparerFunc(func(r *http.Request) (*http.Request, error) { return r, nil })),
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decorators...)
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}
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// DecoratePreparer accepts a Preparer and a, possibly empty, set of PrepareDecorators, which it
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// applies to the Preparer. Decorators are applied in the order received, but their affect upon the
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// request depends on whether they are a pre-decorator (change the http.Request and then pass it
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// along) or a post-decorator (pass the http.Request along and alter it on return).
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func DecoratePreparer(p Preparer, decorators ...PrepareDecorator) Preparer {
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for _, decorate := range decorators {
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p = decorate(p)
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}
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return p
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}
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// Prepare accepts an http.Request and a, possibly empty, set of PrepareDecorators.
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// It creates a Preparer from the decorators which it then applies to the passed http.Request.
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func Prepare(r *http.Request, decorators ...PrepareDecorator) (*http.Request, error) {
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if r == nil {
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return nil, NewError("autorest", "Prepare", "Invoked without an http.Request")
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}
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return CreatePreparer(decorators...).Prepare(r)
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}
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// WithNothing returns a "do nothing" PrepareDecorator that makes no changes to the passed
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// http.Request.
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func WithNothing() PrepareDecorator {
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return func(p Preparer) Preparer {
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return PreparerFunc(func(r *http.Request) (*http.Request, error) {
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return p.Prepare(r)
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})
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}
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}
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// WithHeader returns a PrepareDecorator that sets the specified HTTP header of the http.Request to
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// the passed value. It canonicalizes the passed header name (via http.CanonicalHeaderKey) before
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// adding the header.
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func WithHeader(header string, value string) PrepareDecorator {
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return func(p Preparer) Preparer {
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return PreparerFunc(func(r *http.Request) (*http.Request, error) {
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r, err := p.Prepare(r)
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if err == nil {
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if r.Header == nil {
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r.Header = make(http.Header)
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}
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r.Header.Set(http.CanonicalHeaderKey(header), value)
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}
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return r, err
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})
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}
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}
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// WithBearerAuthorization returns a PrepareDecorator that adds an HTTP Authorization header whose
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// value is "Bearer " followed by the supplied token.
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func WithBearerAuthorization(token string) PrepareDecorator {
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return WithHeader(headerAuthorization, fmt.Sprintf("Bearer %s", token))
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}
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// AsContentType returns a PrepareDecorator that adds an HTTP Content-Type header whose value
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// is the passed contentType.
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func AsContentType(contentType string) PrepareDecorator {
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return WithHeader(headerContentType, contentType)
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}
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// WithUserAgent returns a PrepareDecorator that adds an HTTP User-Agent header whose value is the
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// passed string.
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func WithUserAgent(ua string) PrepareDecorator {
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return WithHeader(headerUserAgent, ua)
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}
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// AsFormURLEncoded returns a PrepareDecorator that adds an HTTP Content-Type header whose value is
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// "application/x-www-form-urlencoded".
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func AsFormURLEncoded() PrepareDecorator {
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return AsContentType(mimeTypeFormPost)
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}
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// AsJSON returns a PrepareDecorator that adds an HTTP Content-Type header whose value is
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// "application/json".
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func AsJSON() PrepareDecorator {
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return AsContentType(mimeTypeJSON)
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}
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// WithMethod returns a PrepareDecorator that sets the HTTP method of the passed request. The
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// decorator does not validate that the passed method string is a known HTTP method.
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func WithMethod(method string) PrepareDecorator {
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return func(p Preparer) Preparer {
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return PreparerFunc(func(r *http.Request) (*http.Request, error) {
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r.Method = method
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return p.Prepare(r)
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})
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}
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}
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// AsDelete returns a PrepareDecorator that sets the HTTP method to DELETE.
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func AsDelete() PrepareDecorator { return WithMethod("DELETE") }
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// AsGet returns a PrepareDecorator that sets the HTTP method to GET.
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func AsGet() PrepareDecorator { return WithMethod("GET") }
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// AsHead returns a PrepareDecorator that sets the HTTP method to HEAD.
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func AsHead() PrepareDecorator { return WithMethod("HEAD") }
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// AsOptions returns a PrepareDecorator that sets the HTTP method to OPTIONS.
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func AsOptions() PrepareDecorator { return WithMethod("OPTIONS") }
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// AsPatch returns a PrepareDecorator that sets the HTTP method to PATCH.
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func AsPatch() PrepareDecorator { return WithMethod("PATCH") }
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// AsPost returns a PrepareDecorator that sets the HTTP method to POST.
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func AsPost() PrepareDecorator { return WithMethod("POST") }
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// AsPut returns a PrepareDecorator that sets the HTTP method to PUT.
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func AsPut() PrepareDecorator { return WithMethod("PUT") }
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// WithBaseURL returns a PrepareDecorator that populates the http.Request with a url.URL constructed
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// from the supplied baseUrl.
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func WithBaseURL(baseURL string) PrepareDecorator {
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return func(p Preparer) Preparer {
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return PreparerFunc(func(r *http.Request) (*http.Request, error) {
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r, err := p.Prepare(r)
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if err == nil {
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var u *url.URL
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if u, err = url.Parse(baseURL); err != nil {
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return r, err
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}
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if u.Scheme == "" {
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err = fmt.Errorf("autorest: No scheme detected in URL %s", baseURL)
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}
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if err == nil {
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r.URL = u
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}
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}
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return r, err
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})
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}
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}
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// WithFormData returns a PrepareDecoratore that "URL encodes" (e.g., bar=baz&foo=quux) into the
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// http.Request body.
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func WithFormData(v url.Values) PrepareDecorator {
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return func(p Preparer) Preparer {
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return PreparerFunc(func(r *http.Request) (*http.Request, error) {
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r, err := p.Prepare(r)
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if err == nil {
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s := v.Encode()
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r.ContentLength = int64(len(s))
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r.Body = ioutil.NopCloser(strings.NewReader(s))
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}
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return r, err
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})
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}
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}
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// WithMultiPartFormData returns a PrepareDecoratore that "URL encodes" (e.g., bar=baz&foo=quux) form parameters
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// into the http.Request body.
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func WithMultiPartFormData(formDataParameters map[string]interface{}) PrepareDecorator {
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return func(p Preparer) Preparer {
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return PreparerFunc(func(r *http.Request) (*http.Request, error) {
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r, err := p.Prepare(r)
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if err == nil {
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var body bytes.Buffer
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writer := multipart.NewWriter(&body)
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for key, value := range formDataParameters {
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if rc, ok := value.(io.ReadCloser); ok {
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var fd io.Writer
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if fd, err = writer.CreateFormFile(key, key); err != nil {
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return r, err
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}
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if _, err = io.Copy(fd, rc); err != nil {
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return r, err
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}
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} else {
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if err = writer.WriteField(key, ensureValueString(value)); err != nil {
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return r, err
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}
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}
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}
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if err = writer.Close(); err != nil {
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return r, err
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}
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if r.Header == nil {
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r.Header = make(http.Header)
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}
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r.Header.Set(http.CanonicalHeaderKey(headerContentType), writer.FormDataContentType())
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r.Body = ioutil.NopCloser(bytes.NewReader(body.Bytes()))
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r.ContentLength = int64(body.Len())
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return r, err
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}
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return r, err
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})
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}
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}
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// WithFile returns a PrepareDecorator that sends file in request body.
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func WithFile(f io.ReadCloser) PrepareDecorator {
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return func(p Preparer) Preparer {
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return PreparerFunc(func(r *http.Request) (*http.Request, error) {
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r, err := p.Prepare(r)
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if err == nil {
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b, err := ioutil.ReadAll(f)
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if err != nil {
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return r, err
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}
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r.Body = ioutil.NopCloser(bytes.NewReader(b))
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r.ContentLength = int64(len(b))
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}
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return r, err
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})
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}
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}
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// WithBool returns a PrepareDecorator that encodes the passed bool into the body of the request
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// and sets the Content-Length header.
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func WithBool(v bool) PrepareDecorator {
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return WithString(fmt.Sprintf("%v", v))
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}
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// WithFloat32 returns a PrepareDecorator that encodes the passed float32 into the body of the
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// request and sets the Content-Length header.
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func WithFloat32(v float32) PrepareDecorator {
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return WithString(fmt.Sprintf("%v", v))
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}
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// WithFloat64 returns a PrepareDecorator that encodes the passed float64 into the body of the
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// request and sets the Content-Length header.
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func WithFloat64(v float64) PrepareDecorator {
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return WithString(fmt.Sprintf("%v", v))
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}
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// WithInt32 returns a PrepareDecorator that encodes the passed int32 into the body of the request
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// and sets the Content-Length header.
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func WithInt32(v int32) PrepareDecorator {
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return WithString(fmt.Sprintf("%v", v))
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}
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// WithInt64 returns a PrepareDecorator that encodes the passed int64 into the body of the request
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// and sets the Content-Length header.
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func WithInt64(v int64) PrepareDecorator {
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return WithString(fmt.Sprintf("%v", v))
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}
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// WithString returns a PrepareDecorator that encodes the passed string into the body of the request
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// and sets the Content-Length header.
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func WithString(v string) PrepareDecorator {
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return func(p Preparer) Preparer {
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return PreparerFunc(func(r *http.Request) (*http.Request, error) {
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r, err := p.Prepare(r)
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if err == nil {
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r.ContentLength = int64(len(v))
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r.Body = ioutil.NopCloser(strings.NewReader(v))
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}
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return r, err
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})
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}
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}
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// WithJSON returns a PrepareDecorator that encodes the data passed as JSON into the body of the
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// request and sets the Content-Length header.
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func WithJSON(v interface{}) PrepareDecorator {
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return func(p Preparer) Preparer {
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return PreparerFunc(func(r *http.Request) (*http.Request, error) {
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r, err := p.Prepare(r)
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if err == nil {
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b, err := json.Marshal(v)
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if err == nil {
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r.ContentLength = int64(len(b))
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r.Body = ioutil.NopCloser(bytes.NewReader(b))
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}
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}
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return r, err
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})
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}
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}
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// WithPath returns a PrepareDecorator that adds the supplied path to the request URL. If the path
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// is absolute (that is, it begins with a "/"), it replaces the existing path.
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func WithPath(path string) PrepareDecorator {
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return func(p Preparer) Preparer {
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return PreparerFunc(func(r *http.Request) (*http.Request, error) {
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r, err := p.Prepare(r)
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if err == nil {
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if r.URL == nil {
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return r, NewError("autorest", "WithPath", "Invoked with a nil URL")
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}
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if r.URL, err = parseURL(r.URL, path); err != nil {
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return r, err
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}
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}
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return r, err
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})
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}
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}
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// WithEscapedPathParameters returns a PrepareDecorator that replaces brace-enclosed keys within the
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// request path (i.e., http.Request.URL.Path) with the corresponding values from the passed map. The
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// values will be escaped (aka URL encoded) before insertion into the path.
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func WithEscapedPathParameters(path string, pathParameters map[string]interface{}) PrepareDecorator {
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parameters := escapeValueStrings(ensureValueStrings(pathParameters))
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return func(p Preparer) Preparer {
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return PreparerFunc(func(r *http.Request) (*http.Request, error) {
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r, err := p.Prepare(r)
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if err == nil {
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if r.URL == nil {
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return r, NewError("autorest", "WithEscapedPathParameters", "Invoked with a nil URL")
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}
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for key, value := range parameters {
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path = strings.Replace(path, "{"+key+"}", value, -1)
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}
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if r.URL, err = parseURL(r.URL, path); err != nil {
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return r, err
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}
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}
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return r, err
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})
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}
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}
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// WithPathParameters returns a PrepareDecorator that replaces brace-enclosed keys within the
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// request path (i.e., http.Request.URL.Path) with the corresponding values from the passed map.
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func WithPathParameters(path string, pathParameters map[string]interface{}) PrepareDecorator {
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parameters := ensureValueStrings(pathParameters)
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return func(p Preparer) Preparer {
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return PreparerFunc(func(r *http.Request) (*http.Request, error) {
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r, err := p.Prepare(r)
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if err == nil {
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if r.URL == nil {
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return r, NewError("autorest", "WithPathParameters", "Invoked with a nil URL")
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}
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for key, value := range parameters {
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path = strings.Replace(path, "{"+key+"}", value, -1)
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}
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if r.URL, err = parseURL(r.URL, path); err != nil {
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return r, err
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}
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}
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return r, err
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})
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}
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}
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func parseURL(u *url.URL, path string) (*url.URL, error) {
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p := strings.TrimRight(u.String(), "/")
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if !strings.HasPrefix(path, "/") {
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path = "/" + path
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}
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return url.Parse(p + path)
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}
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// WithQueryParameters returns a PrepareDecorators that encodes and applies the query parameters
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// given in the supplied map (i.e., key=value).
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func WithQueryParameters(queryParameters map[string]interface{}) PrepareDecorator {
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parameters := ensureValueStrings(queryParameters)
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return func(p Preparer) Preparer {
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return PreparerFunc(func(r *http.Request) (*http.Request, error) {
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r, err := p.Prepare(r)
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if err == nil {
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if r.URL == nil {
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return r, NewError("autorest", "WithQueryParameters", "Invoked with a nil URL")
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}
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v := r.URL.Query()
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for key, value := range parameters {
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v.Add(key, value)
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}
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r.URL.RawQuery = createQuery(v)
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}
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return r, err
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})
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}
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}
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// Authorizer is the interface that provides a PrepareDecorator used to supply request
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// authorization. Most often, the Authorizer decorator runs last so it has access to the full
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// state of the formed HTTP request.
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type Authorizer interface {
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WithAuthorization() PrepareDecorator
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}
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// NullAuthorizer implements a default, "do nothing" Authorizer.
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type NullAuthorizer struct{}
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// WithAuthorization returns a PrepareDecorator that does nothing.
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func (na NullAuthorizer) WithAuthorization() PrepareDecorator {
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return WithNothing()
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}
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