eolas/Databases/MongoDB/Update_document.md

tags
Databases mongo_db node-js mongoose

Update a MongoDB document

There are two methods for updating a document

• query first
• update first

Query first document update

With this approach we first execute a query to retrieve the document we want to edit and then make the change. We use the findById method to identify the document by its UUID and then set to update specified properties on the document.

async function updateCourseFromQuery(id) {
    const course = await Course.findById(id);
    if (!course) return;
    course.set({
        isPublished: true,
        author: 'A new author'
    })

    // Instead of an object, we could also set the updated properties individually
    course.isPublished = true;
    course.author = 'Biggs Volunksire'
    
    const result = course.save()
    console.log(result);
}