},
	},
}

func mainHandler(w http.ResponseWriter, r *http.Request) {
	token := r.FormValue("token")
	if token == "" {
		writeErrorResponse(w, errors.New("token parameter not given"))
		return
	}

	rsp, ok := tokens[token]
	if !ok {
		w.WriteHeader(http.StatusForbidden)
		return
	}

	fmt.Printf("Allowed for token: %s user: %s\n", token, rsp.User)

	w.WriteHeader(http.StatusOK)
	json.NewEncoder(w).Encode(rsp)

        for (String token : range.split(",")) {
            if (token.startsWith("[")) {
                ranges.add(new RangeValue(token.replace("[", ""), true));
            } else if (token.startsWith("(")) {
                ranges.add(new RangeValue(token.replace("(", ""), false));
            } else if (token.endsWith("]")) {
                ranges.add(new RangeValue(token.replace("]", ""), true));

	// This identifier is associated with the Token that was submitted
	// with the AssumeRoleWithWebIdentity call. The identifier is typically unique to
	// the user and the application that acquired the WebIdentityToken (pairwise identifier).
	// For OpenID Connect ID tokens, this field contains the value returned by the identity
	// provider as the token's sub (Subject) claim.
	SubjectFromWebIdentityToken string `xml:",omitempty"`

	if err != nil {
		return nil, err
	}

	// Verify if the authToken already contains
	// <Key> <Token> like format, if this is
	// already present we can blindly use the
	// authToken as is instead of adding 'Bearer'
	tokens := strings.Fields(target.args.AuthToken)
	switch len(tokens) {
	case 2:
		req.Header.Set("Authorization", target.args.AuthToken)
	case 1:

    print('body: ' + id_token_response.text)

    # we can now use the id_token as much as we want to access protected resources.
    tokens = json.loads(id_token_response.text)
    id_token = tokens['id_token']

    response = sts_client.assume_role_with_web_identity(
        RoleArn='arn:aws:iam::123456789012:user/svc-internal-api',
        RoleSessionName='test',

		if s.end > s.start || s.err != nil {
			advance, token, err := s.split(s.buf[s.start:s.end], s.err != nil)
			if err != nil {
				if err == ErrFinalToken {
					s.token = token
					s.done = true
					// When token is not nil, it means the scanning stops
					// with a trailing token, and thus the return value
					// should be true to indicate the existence of the token.
					return token != nil

        final List<AnalyzeToken> tokens = analyzer.analyze(text, "", null);
        final List<AnalyzeToken> readingTokens = analyzer.analyzeAndReading(text, "", null);

        int matchCount = 0;
        for (int i = 0; i < tokens.size(); i++) {
            final String term = tokens.get(i).getTerm();
            final String reading = readingTokens.get(i).getTerm();

///

## Retorne o token

A resposta do endpoint `token` deve ser um objeto JSON.

Deve ter um `token_type`. No nosso caso, como estamos usando tokens "Bearer", o tipo de token deve ser "`bearer`".

E deve ter um `access_token`, com uma string contendo nosso token de acesso.

Para este exemplo simples, seremos completamente inseguros e retornaremos o mesmo `username` do token.

/// tip | Dica

func doesPresignV2SignatureMatch(r *http.Request) APIErrorCode {
	// r.RequestURI will have raw encoded URI as sent by the client.
	tokens := strings.SplitN(r.RequestURI, "?", 2)
	encodedResource := tokens[0]
	encodedQuery := ""
	if len(tokens) == 2 {
		encodedQuery = tokens[1]
	}

	var (
		filteredQueries []string
		gotSignature    string
		expires         string
		accessKey       string

	args.QuoteEscapeCharacter = defaultQuoteEscapeCharacter
	args.CommentCharacter = defaultCommentCharacter
	args.AllowQuotedRecordDelimiter = false

	for {
		// Read tokens from the XML document in a stream.
		t, err := d.Token()
		if err != nil {
			if err == io.EOF {
				break
			}
			return err
		}

		if se, ok := t.(xml.StartElement); ok {
			tagName := se.Name.Local
			switch tagName {