MongoDB array turned into string on database

user_9387916 0
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I have problem with Mongo/express array parsing. A array from body seems to be correct when I console.log response in node console. But the problem is when I try to save the body to mongo.db using insert.one method, the post is saved but the array turns into string, which is bad for me.

This is what I'm sending to mongo (the data is ok, i console.log it, array is not string here)

{
  createdBy: this.userName,
  postContent: this.post,
  tags: this.tags,
  addedAt: new Date()
};

And this is what is stored in database

enter image description here

Update: When I hardcode array into payload it's showed correctly as an array in mongo. But of course problem still exist for dynamic data

express node.js mongodb javascript
2 Answers

You should be able to use JSON parse along with a replace to force it to accept the string as an array, like this:

const array = JSON.parse(this.tags.replace(/'/g, '"'));

Then set tags to the value of array:

tags: array
user_90408660

Use data type as array -- 4 and use .pretty().

Generally if you use find() method returns data in a dense format. By using cursor.pretty() you can set the cursor to return data in a format that is easier for humans to parse

user_32542640
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