Re: How to work with Amadeus ?

Dan Richter wrote:

> I am a newbie to cURL on C++ (Visual Studio 2017).
>
> Any advice how to modify the working sample code below to send Authorization Request/Response (token) to Amadeus API and
> than send the actual Amadeus command ? See https://developers.amadeus.com/self-service/apis-docs/guides/authorization-262
>
> // CurlTest.cpp
>
> #define CURL_STATICLIB
> #include <iostream>
> #include <string>
>
> #include "curl/curl.h"
>
> static size_t my_write(void* buffer, size_t size, size_t nmemb, void* param)
> {
>     std::string& text = *static_cast<std::string*>(param);
>     size_t totalsize = size * nmemb;
>     text.append(static_cast<char*>(buffer), totalsize);
>     return totalsize;
> }
>
> int main()
> {
>     /*std::cout << "Hello World!\n";*/
>     std::string result;
>     CURL* curl;
>     CURLcode res;
>
>     curl = curl_easy_init();
>     if (curl) {
>         curl_easy_setopt(curl, CURLOPT_URL, "https://tcno.co/hello.txt");
>         curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_write);
>         curl_easy_setopt(curl, CURLOPT_WRITEDATA, &result);
>
>         curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
>
>         res = curl_easy_perform(curl);
>
>         curl_easy_cleanup(curl);
>
>         if (CURLE_OK != res) {
>             std::cerr << "CURL error: " << res << '\n';
>         }
>     }
>     curl_global_cleanup();
>
>     std::cout << result << "\n\n";
> }
>

Using the '--libcurl -' option is handy to see what would
be done.

Put something like this in a 'curl-amadeus.bat':
   set CLIENT_ID=none
   set CLIENT_SECRET=01234567

   curl.exe -X POST --libcurl - %* ^
      -H "Content-Type: application/x-www-form-urlencoded" ^
      -d "grant_type=client_credentials&client_id=%CLIENT_ID%&client_secret=%CLIENT_SECRET%" ^
      --write-out json ^
      https://test.api.amadeus.com/v1/security/oauth2/token

and note what 'curl.exe' spits out:
   CURLcode ret;
   CURL *hnd;
   struct curl_slist *slist1;

   slist1 = NULL;
   slist1 = curl_slist_append(slist1, "Content-Type: application/x-www-form-urlencoded");

   hnd = curl_easy_init();

   ...
   curl_easy_setopt(hnd, CURLOPT_POSTFIELDS,
            "grant_type=client_credentials&client_id=none&client_secret=01234567");
   curl_easy_setopt(hnd, CURLOPT_POSTFIELDSIZE_LARGE, (curl_off_t)67);

   curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, slist1);
   curl_easy_setopt(hnd, CURLOPT_CUSTOMREQUEST, "POST");
   ...

So add those libcurl calls to your code.

But Amadeus says:
   "title": "Invalid parameters"

-- 
--gv
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