B4X

Zoom API - Create JWT to Authenticate API Requests

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Creates a JWT for the Zoom API. B4X

Dim success As Boolean = 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...
Dim apiKey As String = "o9rw6Gq0RnqlkfaSqtCMOA"
Dim apiSecret As String = "UslmE23Kjh7at9z3If1xAHEyLmPDNxvxQrjR"

'  Create a JWT to authenticate Zoom API requests.
Dim jwt As ChilkatJwt
jwt.Initialize

Dim jose As ChilkatJsonObject
jose.Initialize
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 ChilkatJsonObject
claims.Initialize
success = claims.UpdateString("iss", apiKey)
success = claims.UpdateNull("aud")

'  Set the timestamp of when the JWT was created to now.
Dim curDateTime As Int = 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 Int = 3600 * 24 * 30
success = claims.AddIntAt(-1, "exp", curDateTime + oneMonth)

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

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

Log(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 ChilkatHttp
http.Initialize("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 ChilkatStringBuilder
sbResponseBody.Initialize
success = http.QuickGetSb("https://api.zoom.us/v2/users?status=active&page_size=30&page_number=1", sbResponseBody)
If success = False Then
    Log(http.LastErrorText)
    Return
End If


Dim jResp As ChilkatJsonObject
jResp.Initialize
jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = False

Log("Response Body:")
Log(jResp.Emit)

Dim respStatusCode As Int = http.LastStatus
Log("Response Status Code = " & respStatusCode)
If respStatusCode >= 400 Then
    Log("Response Header:")
    Log(http.LastHeader)
    Log("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 Int
Dim pmi As Int
Dim timezone As String
Dim verified As Int
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 Int = jResp.IntOf("page_count")
Dim page_number As Int = jResp.IntOf("page_number")
Dim page_size As Int = jResp.IntOf("page_size")
Dim total_records As Int = jResp.IntOf("total_records")
Dim i As Int = 0
Dim count_i As Int = jResp.SizeOfArray("users")
Do 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
Loop