400 Error. Recipient address required. curl

问题

I used Gmail API with curl.( Users.messages: send)

But I recieve Error 400 recipient address required.

Command

curl -X POST -H "Authorization: Bearer *****" -H "Content-Type:message/rfc822" -d "{'raw':'Encoded Value'}" "https://www.googleapis.com/upload/gmail/v1/users/me/messages/send"

Response

{
   "error": {
     "errors": [
        {
         "domain": "global",
         "reason": "invalidArgument",
         "message": "Recipient address required"
       }
     ],
     "code": 400,
     "message": "Recipient address required"
   }
 }

The encoded value was created by the following python script.

import base64
from email.mime.text import MIMEText
from email.utils import formatdate

MAIL_FROM = "example@gmail.com"
MAIL_TO = "example@gmail.com"

def create_message():
    message = MIMEText("Gmail body: Hello world!")
    message["from"] = MAIL_FROM
    message["to"] = MAIL_TO
    message["subject"] = "gmail api test"
    message["Date"] = formatdate(localtime=True)

    byte_msg = message.as_string().encode(encoding="UTF-8")
    byte_msg_b64encoded = base64.urlsafe_b64encode(byte_msg)
    str_msg_b64encoded = byte_msg_b64encoded.decode(encoding="UTF-8")

    return {"raw": str_msg_b64encoded}

print(create_message())

回答1:

When the messages are sent by the media upload requests using https://www.googleapis.com/upload/gmail/v1/users/me/messages/send, the request body is required to be created as follows. I modified your python script for creating the request body. Please confirm it.

Modified python script :

import base64
from email.mime.text import MIMEText
from email.utils import formatdate

MAIL_FROM = "example@gmail.com"
MAIL_TO = "example@gmail.com"


def encode(v):
    byte_msg = v.encode(encoding="UTF-8")
    byte_msg_b64encoded = base64.b64encode(byte_msg)
    return byte_msg_b64encoded.decode(encoding="UTF-8")


def create_message():
    message = "To: " + MAIL_TO + "\n"
    message += "From: " + MAIL_FROM + "\n"
    message += "Subject: =?utf-8?B?" + encode("gmail api test") + "?=\n"
    message += "Date: " + formatdate(localtime=True) + "\n"
    message += "Content-Type: multipart/alternative; boundary=boundaryboundary\n\n"
    message += "--boundaryboundary\n"
    message += "Content-Type: text/plain; charset=UTF-8\n"
    message += "Content-Transfer-Encoding: base64\n\n"
    message += encode("Hello world!") + "\n\n"
    message += "--boundaryboundary"
    return message


print(create_message())

Result :

To: example@gmail.com
From: example@gmail.com
Subject: =?utf-8?B?Z21haWwgYXBpIHRlc3Q=?=
Date: Thu, 15 Mar 2018 01:23:45 +0100
Content-Type: multipart/alternative; boundary=boundaryboundary

--boundaryboundary
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: base64

SGVsbG8gd29ybGQh

--boundaryboundary

Please save above request body to a file as a text file. As a sample, the filename is sample.txt.

Important point :

Here, please be careful the place of "EOF" of the file. Please don't break after the last --boundaryboundary. If it breaks after the last --boundaryboundary, the body is not received. The image is as follows.

Curl command :

curl -s -X POST \
  -H "Authorization: Bearer *****" \
  -H "Content-Type: message/rfc822" \
  --data-binary "@sample.txt" \
  "https://www.googleapis.com/upload/gmail/v1/users/me/messages/send"

It posts sample.txt as the binary data.

Result :

{
 "id": "#####",
 "threadId": "#####",
 "labelIds": [
  "UNREAD",
  "SENT",
  "INBOX"
 ]
}

Note :

This is a very simple sample, so please modify this to your environment.
This answer supposes that your access token can be used for this situation. If the error related to the access token occurs, please check the scopes.

If I misunderstand your question, I'm sorry.

来源：https://stackoverflow.com/questions/49290399/400-error-recipient-address-required-curl

标签

curl

gmail-api