Storing Documents and Distributing them to Customers (Using NodeJS, Express, MongoDB, and Mongoose)

Question

Storing Documents and Distributing them to Customers (Using NodeJS, Express, MongoDB, and Mongoose)

Is there a way to save files in mongoose? For instance, let's say I have a route for the POST method at /, and for the GET method at /. When posting to /, the goal is to save the uploaded file to a MongoDB database using mongoose. Then, when someone tries to access / via a GET request, the saved file should be sent back. If the file happens to be an image, how can it be displayed as an image for the client? On that note, should raw files from users be saved directly into the database or is it best practice to store them differently in MongoDB?

node.js mongodb express mongoose

Answer 1

Answer №1

It is essential to have a schema defined for your MongoDB database. This schema can be stored in a 'SCHEMA.js' file as shown below:

  module.exports = {
         model: function(Schema) {
          return new Schema({
             _id: { type: String, index: true, unique: true },
             updateDate: { type: Date, default: Date.now },
             data: String
            })
          }
  }

Once you have the schema set up, you can use it for handling requests like this:

  router.post('/', function(req, res){
     var data = req.body.data;
     SCHEMA = require('/YOUR/SCHEMA/PATH').SCHEMA;

     SCHEMA.update({
       _id: data.id
     }, {
        data: data
     }, {
      upsert: true
      }, function (err) {
       if (err) {console.error('subs-on-userapps> failed update token, err=',err);}
     });
  })

In the above code snippet, data from the request is inserted into the MongoDB database.

The .update method searches for existing data and inserts it with the option upsert:true if it does not already exist.

To retrieve data, another route with a Get method can be set up as follows:

      router.get('/', function(req, res){

          SCHEMA.findOne({QUERY})
               .execQ()
               .then(function(result) {
                    res.json({result: result})
               });

      })

Answer 2

It is essential to have a schema defined for your MongoDB database. This schema can be stored in a 'SCHEMA.js' file as shown below:

  module.exports = {
         model: function(Schema) {
          return new Schema({
             _id: { type: String, index: true, unique: true },
             updateDate: { type: Date, default: Date.now },
             data: String
            })
          }
  }

Once you have the schema set up, you can use it for handling requests like this:

  router.post('/', function(req, res){
     var data = req.body.data;
     SCHEMA = require('/YOUR/SCHEMA/PATH').SCHEMA;

     SCHEMA.update({
       _id: data.id
     }, {
        data: data
     }, {
      upsert: true
      }, function (err) {
       if (err) {console.error('subs-on-userapps> failed update token, err=',err);}
     });
  })

In the above code snippet, data from the request is inserted into the MongoDB database.

The .update method searches for existing data and inserts it with the option upsert:true if it does not already exist.

To retrieve data, another route with a Get method can be set up as follows:

      router.get('/', function(req, res){

          SCHEMA.findOne({QUERY})
               .execQ()
               .then(function(result) {
                    res.json({result: result})
               });

      })

Storing Documents and Distributing them to Customers (Using NodeJS, Express, MongoDB, and Mongoose)

Answer №1

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