(Xojo Plugin) Zoom API - Create JWT to Authenticate API Requests

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Creates a JWT for the Zoom API.

For more information, see https://marketplace.zoom.us/docs/api-reference/using-zoom-apis#using-jwt

Chilkat Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

// 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...
Dim apiKey As String
apiKey = "o9rw6Gq0RnqlkfaSqtCMOA"
Dim apiSecret As String
apiSecret = "UslmE23Kjh7at9z3If1xAHEyLmPDNxvxQrjR"

// Create a JWT to authenticate Zoom API requests.
Dim jwt As New Chilkat.Jwt

Dim jose As New Chilkat.JsonObject
Dim success As Boolean
success = jose.UpdateString("alg","HS256")
success = jose.UpdateString("typ","JWT")

// Build claims to look like this:
// {"aud":null,"iss":"o9rw6Gq0RnqlkfaSqtCMOA","exp":1627651762,"iat":1627646363}
Dim claims As New Chilkat.JsonObject
success = claims.UpdateString("iss",apiKey)
success = claims.UpdateNull("aud")

// Set the timestamp of when the JWT was created to now.
Dim curDateTime As Int32
curDateTime = jwt.GenNumericDate(0)
success = claims.AddIntAt(-1,"iat",curDateTime)

// Set the timestamp defining an expiration time (end time) for the token
// to be now + 1 month(3600 * 24 * 30 seconds)
Dim oneMonth As Int32
oneMonth = 3600 * 24 * 30
success = claims.AddIntAt(-1,"exp",curDateTime + oneMonth)

// Produce the smallest possible JWT:
jwt.AutoCompact = True

Dim strJwt As String
strJwt = jwt.CreateJwt(jose.Emit(),claims.Emit(),apiSecret)

System.DebugLog(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

Dim http As New Chilkat.Http

// 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

http.SetRequestHeader "content-type","application/json"
// Adds the "Authorization: Bearer { your_token }" header.
http.AuthToken = strJwt

Dim sbResponseBody As New Chilkat.StringBuilder
success = http.QuickGetSb("https://api.zoom.us/v2/users?status=active&page_size=30&page_number=1",sbResponseBody)
If (success = False) Then
    System.DebugLog(http.LastErrorText)
    Return
End If

Dim jResp As New Chilkat.JsonObject
success = jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = False

System.DebugLog("Response Body:")
System.DebugLog(jResp.Emit())

Dim respStatusCode As Int32
respStatusCode = http.LastStatus
System.DebugLog("Response Status Code = " + Str(respStatusCode))
If (respStatusCode >= 400) Then
    System.DebugLog("Response Header:")
    System.DebugLog(http.LastHeader)
    System.DebugLog("Failed.")
    Return
End If

// 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

Dim id As String
Dim first_name As String
Dim last_name As String
Dim email As String
Dim v_type As Int32
Dim pmi As Int32
Dim timezone As String
Dim verified As Int32
Dim created_at As String
Dim last_login_time As String
Dim language As String
Dim phone_number As String
Dim status As String
Dim role_id As String

Dim page_count As Int32
page_count = jResp.IntOf("page_count")
Dim page_number As Int32
page_number = jResp.IntOf("page_number")
Dim page_size As Int32
page_size = jResp.IntOf("page_size")
Dim total_records As Int32
total_records = jResp.IntOf("total_records")
Dim i As Int32
i = 0
Dim count_i As Int32
count_i = jResp.SizeOfArray("users")
While i < count_i
    jResp.I = i
    id = jResp.StringOf("users[i].id")
    first_name = jResp.StringOf("users[i].first_name")
    last_name = jResp.StringOf("users[i].last_name")
    email = jResp.StringOf("users[i].email")
    v_type = jResp.IntOf("users[i].type")
    pmi = jResp.IntOf("users[i].pmi")
    timezone = jResp.StringOf("users[i].timezone")
    verified = jResp.IntOf("users[i].verified")
    created_at = jResp.StringOf("users[i].created_at")
    last_login_time = jResp.StringOf("users[i].last_login_time")
    language = jResp.StringOf("users[i].language")
    phone_number = jResp.StringOf("users[i].phone_number")
    status = jResp.StringOf("users[i].status")
    role_id = jResp.StringOf("users[i].role_id")
    i = i + 1
Wend