Implemented token fetch

PostFundManagement.Api/http/api.http

@@ -0,0 +1,16 @@
+@hostname = api.example.com
+@port = 8080
+@host = {{hostname}}:{{port}}
+@contentType = application/json
+
+###
+# @prompt username
+# @prompt refCode Your reference code display on webpage
+# @prompt otp Your one-time password in your mailbox
+POST https://{{host}}/verify-otp/{{refCode}} HTTP/1.1
+Content-Type: {{contentType}}
+
+{
+    "username": "{{username}}",
+    "otp": "{{otp}}"
+}