Chilkat Online Tools

TCL / Salesforce Platform APIs / JWT Bearer Token Flow

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load ./chilkat.dll

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

set http [new_CkHttp]

set req [new_CkHttpRequest]

CkHttpRequest_AddParam $req "grant_type" "urn:ietf:params:oauth:grant-type:jwt-bearer"
CkHttpRequest_AddParam $req "assertion" ""

# resp is a CkHttpResponse
set resp [CkHttp_PostUrlEncoded $http "https://login.salesforce.com{{site}}/services/oauth2/token" $req]
if {[CkHttp_get_LastMethodSuccess $http] == 0} then {
    puts [CkHttp_lastErrorText $http]
    delete_CkHttp $http
    delete_CkHttpRequest $req
    exit
}

set sbResponseBody [new_CkStringBuilder]

CkHttpResponse_GetBodySb $resp $sbResponseBody

set jResp [new_CkJsonObject]

CkJsonObject_LoadSb $jResp $sbResponseBody
CkJsonObject_put_EmitCompact $jResp 0

puts "Response Body:"
puts [CkJsonObject_emit $jResp]

set respStatusCode [CkHttpResponse_get_StatusCode $resp]
puts "Response Status Code = $respStatusCode"
if {$respStatusCode >= 400} then {
    puts "Response Header:"
    puts [CkHttpResponse_header $resp]
    puts "Failed."
    delete_CkHttpResponse $resp

    delete_CkHttp $http
    delete_CkHttpRequest $req
    delete_CkStringBuilder $sbResponseBody
    delete_CkJsonObject $jResp
    exit
}

delete_CkHttpResponse $resp

# Sample JSON response:
# (Sample code for parsing the JSON response is shown below)

# {
#   "access_token": "<access_token>",
#   "scope": "web openid api full",
#   "instance_url": "https://<my_domain>",
#   "id": "https://login.salesforce.com/id/00D.../005...",
#   "token_type": "Bearer"
# }

# Sample code for parsing the JSON response...
# Use this online tool to generate parsing code from sample JSON: Generate JSON Parsing Code

set access_token [CkJsonObject_stringOf $jResp "access_token"]
set scope [CkJsonObject_stringOf $jResp "scope"]
set instance_url [CkJsonObject_stringOf $jResp "instance_url"]
set id [CkJsonObject_stringOf $jResp "id"]
set token_type [CkJsonObject_stringOf $jResp "token_type"]

delete_CkHttp $http
delete_CkHttpRequest $req
delete_CkStringBuilder $sbResponseBody
delete_CkJsonObject $jResp

Curl Command

curl -X POST
	-H "Content-Type: application/x-www-form-urlencoded"
	--data-urlencode 'grant_type=urn:ietf:params:oauth:grant-type:jwt-bearer'
	--data-urlencode 'assertion='
https://login.salesforce.com{{site}}/services/oauth2/token

Postman Collection Item JSON

{
  "name": "JWT Bearer Token Flow",
  "event": [
    {
      "listen": "test",
      "script": {
        "exec": [
          "const jsonData = pm.response.json();",
          "const id = jsonData.id.split('/');",
          "",
          "const context = pm.environment.name ? pm.environment : pm.collectionVariables;",
          "context.set(\"_accessToken\", jsonData.access_token);",
          "context.set(\"_endpoint\", jsonData.instance_url);",
          "context.set(\"_userId\", id.pop());",
          "context.set(\"_orgId\", id.pop());"
        ],
        "type": "text/javascript"
      }
    }
  ],
  "request": {
    "auth": {
      "type": "noauth"
    },
    "method": "POST",
    "header": [
      {
        "key": "Content-Type",
        "value": "application/x-www-form-urlencoded"
      }
    ],
    "body": {
      "mode": "urlencoded",
      "urlencoded": [
        {
          "key": "grant_type",
          "value": "urn:ietf:params:oauth:grant-type:jwt-bearer",
          "type": "text"
        },
        {
          "key": "assertion",
          "value": "",
          "type": "text"
        }
      ]
    },
    "url": {
      "raw": "{{url}}{{site}}/services/oauth2/token",
      "host": [
        "{{url}}{{site}}"
      ],
      "path": [
        "services",
        "oauth2",
        "token"
      ]
    },
    "description": "JWT Auth"
  },
  "response": [
    {
      "name": "Successful JWT Bearer Token Flow",
      "originalRequest": {
        "method": "POST",
        "header": [
          {
            "key": "Content-Type",
            "value": "application/x-www-form-urlencoded"
          }
        ],
        "body": {
          "mode": "urlencoded",
          "urlencoded": [
            {
              "key": "grant_type",
              "value": "urn:ietf:params:oauth:grant-type:jwt-bearer",
              "type": "text"
            },
            {
              "key": "assertion",
              "value": "<token>",
              "type": "text"
            }
          ]
        },
        "url": {
          "raw": "{{url}}{{site}}/services/oauth2/token",
          "host": [
            "{{url}}{{site}}"
          ],
          "path": [
            "services",
            "oauth2",
            "token"
          ]
        }
      },
      "status": "OK",
      "code": 200,
      "_postman_previewlanguage": "json",
      "header": [
        {
          "key": "Date",
          "value": "Thu, 05 Oct 2023 12:17:02 GMT"
        },
        {
          "key": "Strict-Transport-Security",
          "value": "max-age=63072000; includeSubDomains"
        },
        {
          "key": "X-Content-Type-Options",
          "value": "nosniff"
        },
        {
          "key": "X-XSS-Protection",
          "value": "1; mode=block"
        },
        {
          "key": "X-Robots-Tag",
          "value": "none"
        },
        {
          "key": "Cache-Control",
          "value": "no-cache,must-revalidate,max-age=0,no-store,private"
        },
        {
          "key": "Expires",
          "value": "Thu, 01 Jan 1970 00:00:00 GMT"
        },
        {
          "key": "Content-Type",
          "value": "application/json;charset=UTF-8"
        },
        {
          "key": "Vary",
          "value": "Accept-Encoding"
        },
        {
          "key": "Content-Encoding",
          "value": "gzip"
        },
        {
          "key": "Transfer-Encoding",
          "value": "chunked"
        }
      ],
      "cookie": [
      ],
      "body": "{\n    \"access_token\": \"<access_token>\",\n    \"scope\": \"web openid api full\",\n    \"instance_url\": \"https://<my_domain>\",\n    \"id\": \"https://login.salesforce.com/id/00D.../005...\",\n    \"token_type\": \"Bearer\"\n}"
    }
  ]
}