如何避免从Gmail中加载附件数据Rest API获取消息

Question

如何避免从Gmail Rest API中获取附件数据并获取消息请求。

使用fields参数至少我们能避免加载几个字段，但是当我想加载邮件正文，附件的数据也与身体磨磨蹭蹭就像IMAP

Answer 1

就像你在做你不拿到附件IMAP。你得到一个attachmentId，你必须使用一个额外的请求来获取附件。

我刚刚给我发了一封带有附加图片的邮件。这是从API响应的样子：

{ 
"id": "1573ec1aa0976b42", 
"threadId": "1573ec1aa0976b42", 
"labelIds": [ 
    "SENT", 
    "INBOX", 
    "IMPORTANT", 
    "UNREAD" 
], 
"snippet": "", 
"historyId": "939514", 
"internalDate": "1474226662000", 
"payload": { 
    "mimeType": "multipart/related", 
    "filename": "", 
    "headers": [ ... ], 
    "body": { 
    "size": 0 
    }, 
    "parts": [ 
    { 
    "mimeType": "multipart/alternative", 
    "filename": "", 
    "headers": [ 
    { 
     "name": "Content-Type", 
     "value": "multipart/alternative; boundary=94eb2c0d3cba8637a2053ccd2461" 
    } 
    ], 
    "body": { 
    "size": 0 
    }, 
    "parts": [ 
    { ... }, 
    { 
     "partId": "1", 
     "mimeType": "image/png", 
     "filename": "Screen Shot", 
     "headers": [ ... ], 
     "body": { 
     "attachmentId": "ANGjdJ-bmCvsIaV-4KfALXzVV_D567w4i6ksLnwIZhLAl3VXCE335663UbmOLC_vbLrCFusNtnWVpdTv3i88uR482kFwLZqAcwmI7C5gFlamob2aK4-lqAPlCZs17jtCQR9y5Mt4nnpP_Kg64N9qgXbDF0E2vYnEw4xwtEKEo4fRIAbc94ZjjfynFD832mh1B37XFMt-bYw9wkNv24xBife0koBNYpKs-gGLJkfu2EoZouqunGDX9ry1jq2jW2AClWcFXPXvgRBMjUcoRDPtvb9LLLrBhDjU1hu6r1Ibc3c2BSoBogT8QyIp2VUCuFU", 
     "size": 1511996 
     } 
    } 
    ] 
    }, 
    "sizeEstimate": 1513185 
} 

正如你所看到的，它只是包含attachmentId并没有实际的附件数据。