(PowerBuilder) 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 ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

integer li_rc
string ls_ApiKey
string ls_ApiSecret
oleobject loo_Jwt
oleobject loo_Jose
integer li_Success
oleobject loo_Claims
integer li_CurDateTime
integer li_OneMonth
string ls_StrJwt
oleobject loo_Http
oleobject loo_SbResponseBody
oleobject loo_JResp
integer li_RespStatusCode
string ls_Id
string ls_First_name
string ls_Last_name
string ls_Email
integer li_V_type
integer li_Pmi
string ls_Timezone
integer li_Verified
string ls_Created_at
string ls_Last_login_time
string ls_Language
string ls_Phone_number
string ls_Status
string ls_Role_id
integer li_Page_count
integer li_Page_number
integer li_Page_size
integer li_Total_records
integer i
integer li_Count_i

// 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...
ls_ApiKey = "o9rw6Gq0RnqlkfaSqtCMOA"
ls_ApiSecret = "UslmE23Kjh7at9z3If1xAHEyLmPDNxvxQrjR"

// Create a JWT to authenticate Zoom API requests.
loo_Jwt = create oleobject
// Use "Chilkat_9_5_0.Jwt" for versions of Chilkat < 10.0.0
li_rc = loo_Jwt.ConnectToNewObject("Chilkat.Jwt")
if li_rc < 0 then
    destroy loo_Jwt
    MessageBox("Error","Connecting to COM object failed")
    return
end if

loo_Jose = create oleobject
// Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
li_rc = loo_Jose.ConnectToNewObject("Chilkat.JsonObject")

li_Success = loo_Jose.UpdateString("alg","HS256")
li_Success = loo_Jose.UpdateString("typ","JWT")

// Build claims to look like this:
// {"aud":null,"iss":"o9rw6Gq0RnqlkfaSqtCMOA","exp":1627651762,"iat":1627646363}
loo_Claims = create oleobject
// Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
li_rc = loo_Claims.ConnectToNewObject("Chilkat.JsonObject")

li_Success = loo_Claims.UpdateString("iss",ls_ApiKey)
li_Success = loo_Claims.UpdateNull("aud")

// Set the timestamp of when the JWT was created to now.
li_CurDateTime = loo_Jwt.GenNumericDate(0)
li_Success = loo_Claims.AddIntAt(-1,"iat",li_CurDateTime)

// Set the timestamp defining an expiration time (end time) for the token
// to be now + 1 month(3600 * 24 * 30 seconds)
li_OneMonth = 3600 * 24 * 30
li_Success = loo_Claims.AddIntAt(-1,"exp",li_CurDateTime + li_OneMonth)

// Produce the smallest possible JWT:
loo_Jwt.AutoCompact = 1

ls_StrJwt = loo_Jwt.CreateJwt(loo_Jose.Emit(),loo_Claims.Emit(),ls_ApiSecret)

Write-Debug ls_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

loo_Http = create oleobject
// Use "Chilkat_9_5_0.Http" for versions of Chilkat < 10.0.0
li_rc = loo_Http.ConnectToNewObject("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

loo_Http.SetRequestHeader("content-type","application/json")
// Adds the "Authorization: Bearer { your_token }" header.
loo_Http.AuthToken = ls_StrJwt

loo_SbResponseBody = create oleobject
// Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
li_rc = loo_SbResponseBody.ConnectToNewObject("Chilkat.StringBuilder")

li_Success = loo_Http.QuickGetSb("https://api.zoom.us/v2/users?status=active&page_size=30&page_number=1",loo_SbResponseBody)
if li_Success = 0 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_Jwt
    destroy loo_Jose
    destroy loo_Claims
    destroy loo_Http
    destroy loo_SbResponseBody
    return
end if

loo_JResp = create oleobject
// Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
li_rc = loo_JResp.ConnectToNewObject("Chilkat.JsonObject")

loo_JResp.LoadSb(loo_SbResponseBody)
loo_JResp.EmitCompact = 0

Write-Debug "Response Body:"
Write-Debug loo_JResp.Emit()

li_RespStatusCode = loo_Http.LastStatus
Write-Debug "Response Status Code = " + string(li_RespStatusCode)
if li_RespStatusCode >= 400 then
    Write-Debug "Response Header:"
    Write-Debug loo_Http.LastHeader
    Write-Debug "Failed."
    destroy loo_Jwt
    destroy loo_Jose
    destroy loo_Claims
    destroy loo_Http
    destroy loo_SbResponseBody
    destroy loo_JResp
    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

li_Page_count = loo_JResp.IntOf("page_count")
li_Page_number = loo_JResp.IntOf("page_number")
li_Page_size = loo_JResp.IntOf("page_size")
li_Total_records = loo_JResp.IntOf("total_records")
i = 0
li_Count_i = loo_JResp.SizeOfArray("users")
do while i < li_Count_i
    loo_JResp.I = i
    ls_Id = loo_JResp.StringOf("users[i].id")
    ls_First_name = loo_JResp.StringOf("users[i].first_name")
    ls_Last_name = loo_JResp.StringOf("users[i].last_name")
    ls_Email = loo_JResp.StringOf("users[i].email")
    li_V_type = loo_JResp.IntOf("users[i].type")
    li_Pmi = loo_JResp.IntOf("users[i].pmi")
    ls_Timezone = loo_JResp.StringOf("users[i].timezone")
    li_Verified = loo_JResp.IntOf("users[i].verified")
    ls_Created_at = loo_JResp.StringOf("users[i].created_at")
    ls_Last_login_time = loo_JResp.StringOf("users[i].last_login_time")
    ls_Language = loo_JResp.StringOf("users[i].language")
    ls_Phone_number = loo_JResp.StringOf("users[i].phone_number")
    ls_Status = loo_JResp.StringOf("users[i].status")
    ls_Role_id = loo_JResp.StringOf("users[i].role_id")
    i = i + 1
loop


destroy loo_Jwt
destroy loo_Jose
destroy loo_Claims
destroy loo_Http
destroy loo_SbResponseBody
destroy loo_JResp