Раскройте возможности электронных подписей и факсимильной связи

из faxplus импорт ApiClient, OutboxApi, OutboxComment, RetryOptions, OutboxOptions, OutboxCoverPage, PayloadOutbox
из faxplus.configuration импорт Configuration

outbox_comment = OutboxComment(tags=['tag1', 'tag2'],
    text='text comment')

retry_options = RetryOptions(count=2, delay=15)

outbox_options = OutboxOptions(enhancement=True, retry=retry_options)

outbox_cover_page = OutboxCoverPage()

payload_outbox = PayloadOutbox(from='+12345667',
    to=['+12345688', '+12345699'],
    files=['filetosend.pdf'],
    comment=outbox_comment,
    options=outbox_options,
    send_time='2000-01-01 01:02:03 +0000',
    return_ids=True,
    cover_page=outbox_cover_page)

conf = Configuration()
conf.access_token = access_token
# header_name и header_value требуются только при использовании схемы токенов OAuth2
api_client = ApiClient(header_name='x-fax-clientid', header_value=client_id, configuration=conf)
api = OutboxApi(api_client)
resp = api.send_fax(
    user_id='13d8z73c',
    body=payload_outbox
)

<?php

require 'vendor/autoload.php';

$headers = array(
    'Accept' => 'application/json',
    'Authorization' => 'Bearer {access-token}',
    // The x-fax-clientid header is required only when using the OAuth2 token scheme
    'x-fax-clientid' => '{client ID}',
);

$client = new GuzzleHttp\Client();

// Define array of request body.
$request_body = ...;  // See request body example

try {
    $response = $client->request('POST','https://restapi.fax.plus/v3/accounts/{user_id}/outbox', array(
        'headers' => $headers,
        'json' => $request_body,
        )
    );
    print_r($response->getBody()->getContents());
 }
 catch (GuzzleHttp\Exception\BadResponseException $e) {
    // handle exception or api errors.
    print_r($e->getMessage());
 }

 // ...

package main

import (
       "bytes"
       "net/http"
)

func main() {

    headers := map[string][]string{
        // The x-fax-clientid header is required only when using the OAuth2 token scheme
        "Content-Type": []string{"application/json"},
        "Accept": []string{"application/json"},
        "Authorization": []string{"Bearer {access-token}"},
        "x-fax-clientid": []string{"YOUR CLIENT_ID"}
    }

    data := bytes.NewBuffer([]byte{jsonReq})
    req, err := http.NewRequest("POST", "https://restapi.fax.plus/v3/accounts/{user_id}/outbox", data)
    req.Header = headers

    client := &http.Client{}
    resp, err := client.Do(req)
    // ...
}