C
C
Zoom API - Create JWT to Authenticate API Requests
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Creates a JWT for the Zoom API.Chilkat C Downloads
#include <C_CkJwt.h>
#include <C_CkJsonObject.h>
#include <C_CkHttp.h>
#include <C_CkStringBuilder.h>
void ChilkatSample(void)
{
BOOL success;
const char *apiKey;
const char *apiSecret;
HCkJwt jwt;
HCkJsonObject jose;
HCkJsonObject claims;
int curDateTime;
int oneMonth;
const char *strJwt;
HCkHttp http;
HCkStringBuilder sbResponseBody;
HCkJsonObject jResp;
int respStatusCode;
const char *id;
const char *first_name;
const char *last_name;
const char *email;
int v_type;
int pmi;
const char *timezone;
int verified;
const char *created_at;
const char *last_login_time;
const char *language;
const char *phone_number;
const char *status;
const char *role_id;
int page_count;
int page_number;
int page_size;
int total_records;
int i;
int count_i;
success = FALSE;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
// Use your API key and secret here...
apiKey = "o9rw6Gq0RnqlkfaSqtCMOA";
apiSecret = "UslmE23Kjh7at9z3If1xAHEyLmPDNxvxQrjR";
// Create a JWT to authenticate Zoom API requests.
jwt = CkJwt_Create();
jose = CkJsonObject_Create();
success = CkJsonObject_UpdateString(jose,"alg","HS256");
success = CkJsonObject_UpdateString(jose,"typ","JWT");
// Build claims to look like this:
// {"aud":null,"iss":"o9rw6Gq0RnqlkfaSqtCMOA","exp":1627651762,"iat":1627646363}
claims = CkJsonObject_Create();
success = CkJsonObject_UpdateString(claims,"iss",apiKey);
success = CkJsonObject_UpdateNull(claims,"aud");
// Set the timestamp of when the JWT was created to now.
curDateTime = CkJwt_GenNumericDate(jwt,0);
success = CkJsonObject_AddIntAt(claims,-1,"iat",curDateTime);
// Set the timestamp defining an expiration time (end time) for the token
// to be now + 1 month(3600 * 24 * 30 seconds)
oneMonth = 3600 * 24 * 30;
success = CkJsonObject_AddIntAt(claims,-1,"exp",curDateTime + oneMonth);
// Produce the smallest possible JWT:
CkJwt_putAutoCompact(jwt,TRUE);
strJwt = CkJwt_createJwt(jwt,CkJsonObject_emit(jose),CkJsonObject_emit(claims),apiSecret);
printf("%s\n",strJwt);
// Let's test the JWT to by sending the following request:
// curl --request GET \
// --url 'https://api.zoom.us/v2/users?status=active&page_size=30&page_number=1' \
// --header 'authorization: Bearer { your_token }' \
// --header 'content-type: application/json
http = CkHttp_Create();
// Implements the following CURL command:
// curl --request GET \
// --url 'https://api.zoom.us/v2/users?status=active&page_size=30&page_number=1' \
// --header 'authorization: Bearer { your_token }' \
// --header 'content-type: application/json
// Use the following online tool to generate HTTP code from a CURL command
// Convert a cURL Command to HTTP Source Code
CkHttp_SetRequestHeader(http,"content-type","application/json");
// Adds the "Authorization: Bearer { your_token }" header.
CkHttp_putAuthToken(http,strJwt);
sbResponseBody = CkStringBuilder_Create();
success = CkHttp_QuickGetSb(http,"https://api.zoom.us/v2/users?status=active&page_size=30&page_number=1",sbResponseBody);
if (success == FALSE) {
printf("%s\n",CkHttp_lastErrorText(http));
CkJwt_Dispose(jwt);
CkJsonObject_Dispose(jose);
CkJsonObject_Dispose(claims);
CkHttp_Dispose(http);
CkStringBuilder_Dispose(sbResponseBody);
return;
}
jResp = CkJsonObject_Create();
CkJsonObject_LoadSb(jResp,sbResponseBody);
CkJsonObject_putEmitCompact(jResp,FALSE);
printf("Response Body:\n");
printf("%s\n",CkJsonObject_emit(jResp));
respStatusCode = CkHttp_getLastStatus(http);
printf("Response Status Code = %d\n",respStatusCode);
if (respStatusCode >= 400) {
printf("Response Header:\n");
printf("%s\n",CkHttp_lastHeader(http));
printf("Failed.\n");
CkJwt_Dispose(jwt);
CkJsonObject_Dispose(jose);
CkJsonObject_Dispose(claims);
CkHttp_Dispose(http);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jResp);
return;
}
// Sample output:
// {
// "page_count": 1,
// "page_number": 1,
// "page_size": 30,
// "total_records": 1,
// "users": [
// {
// "id": "s8uAiMJiRmS_-eu1yOhKlg",
// "first_name": "Joe",
// "last_name": "Example",
// "email": "joe@example.com",
// "type": 1,
// "pmi": 5224934114,
// "timezone": "America/Chicago",
// "verified": 1,
// "created_at": "2021-07-30T11:56:37Z",
// "last_login_time": "2021-07-30T11:56:37Z",
// "language": "en-US",
// "phone_number": "",
// "status": "active",
// "role_id": "0"
// }
// ]
// }
// Sample code for parsing the JSON response...
// Use the following online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON
page_count = CkJsonObject_IntOf(jResp,"page_count");
page_number = CkJsonObject_IntOf(jResp,"page_number");
page_size = CkJsonObject_IntOf(jResp,"page_size");
total_records = CkJsonObject_IntOf(jResp,"total_records");
i = 0;
count_i = CkJsonObject_SizeOfArray(jResp,"users");
while (i < count_i) {
CkJsonObject_putI(jResp,i);
id = CkJsonObject_stringOf(jResp,"users[i].id");
first_name = CkJsonObject_stringOf(jResp,"users[i].first_name");
last_name = CkJsonObject_stringOf(jResp,"users[i].last_name");
email = CkJsonObject_stringOf(jResp,"users[i].email");
v_type = CkJsonObject_IntOf(jResp,"users[i].type");
pmi = CkJsonObject_IntOf(jResp,"users[i].pmi");
timezone = CkJsonObject_stringOf(jResp,"users[i].timezone");
verified = CkJsonObject_IntOf(jResp,"users[i].verified");
created_at = CkJsonObject_stringOf(jResp,"users[i].created_at");
last_login_time = CkJsonObject_stringOf(jResp,"users[i].last_login_time");
language = CkJsonObject_stringOf(jResp,"users[i].language");
phone_number = CkJsonObject_stringOf(jResp,"users[i].phone_number");
status = CkJsonObject_stringOf(jResp,"users[i].status");
role_id = CkJsonObject_stringOf(jResp,"users[i].role_id");
i = i + 1;
}
CkJwt_Dispose(jwt);
CkJsonObject_Dispose(jose);
CkJsonObject_Dispose(claims);
CkHttp_Dispose(http);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jResp);
}