POST https://www.googleapis.com/blogger/v3/blogs/8070105920543249955/posts/ HTTP/1.0
Host: www.googleapis.com
Authorization: Bearer <OAuth2 key>
Content-Type: application/json

{
  "kind": "blogger#post",
  "blog": {
    "id": "8070105920543249955"
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  "title": "A new post",
  "content": "With <b>exciting</b> content..."
}