昨天我制作了一个简单的API,用于测试。在那里,我可以做所有事情,获取,发布,删除和打补丁。但是今天我只能获取和删除。当我要发布帖子时,出现错误,我不理解,因为昨天它很好用。
这是我的帖子:
router.post('/', async (req, res) => {
const post = new Post({
title: req.body.title,
description: req.body.description
});
try {
const savedPost = await post.save();
res.json(savedPost);
} catch (err) {
res.json({
message: err
});
}
});
我发表了另一篇文章,但这也行不通:
router.post('/', (req, res) => {
const postData = {
title: req.body.title,
description: req.body.description
}
Post.findOne({
title: req.body.title,
description: req.body.description
})
.then(post => {
if (!post) {
Post.create(postData);
res.json(postData);
}
})
.catch(err => {
res.send(err);
})
})
这是我得到的错误:
TypeError: Cannot read property 'title' of undefined
at router.post (D:\Sonstiges\VUE_JS\rest_api\routes\posts.js:35:25)
at Layer.handle [as handle_request] (D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\router\layer.js:95:5)
at next (D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\router\route.js:137:13)
at Route.dispatch (D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\router\route.js:112:3)
at Layer.handle [as handle_request] (D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\router\layer.js:95:5)
at D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\router\index.js:281:22
at Function.process_params (D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\router\index.js:335:12)
at next (D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\router\index.js:275:10)
at Function.handle (D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\router\index.js:174:3)
at router (D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\router\index.js:47:12)
at Layer.handle [as handle_request] (D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\router\layer.js:95:5)
at trim_prefix (D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\router\index.js:317:13)
at D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\router\index.js:284:7
at Function.process_params (D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\router\index.js:335:12)
at next (D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\router\index.js:275:10)
at expressInit (D:\Sonstiges\VUE_JS\rest_api\node_modules\express\lib\middleware\init.js:40:5)
因此它说标题不确定。在我的模型中,我将其定义为字符串:
const PostSchema = mongoose.Schema({
title: {
type: String,
required: true
},
description: {
type: String,
required: true
},
date: {
type: Date,
default: Date.now
}
});
在邮递员中,我发布一个带有原始正文且类型为JSON(application / json)的帖子:
{
"title": "test",
"description": "this is a test"
}
如何定义标题?
Stackoverflow也有类似的question。我尝试了此解决方案,但对我而言不起作用。