How to Insert Data into Mongo with Go
In this tutorial, I will show you the basics of doing an insert into a Mongo database instance with Go code. I will be on local and provide you with all steps.
I am assuming you have Go installed and have successful compiled at least one Go file. This would confirm your environment works. We will be using my Go boierplate code to save time on setting up our code structure. It follows a
handlershandles the inbound request.
modelscontains all structs that represent data.
repositorieshas all methods for interacting with the database.
servicescontains the business logic of the app.
utilshas any helper methods.
Download the Go boilerplate. Please give it a star on Github so I know people are still using and enjoying it. Move the files into your new project root. Open the files up in a text editor.
You need to do one thing for this boilerplate to work. Open
services/user_service.go and within the
IsValidPassword function. You will need to switch the variable to
true. Do NOT use this code in production without fixing it. I leave encryption and password requirements up to you. This will store a plain text password till you add code to
IsValidPassword. For demo and dev purposes, this is fine.
As you can imagine, we will be working with the
repositories layer since it works with the database. If we open the
repositories/cars_repository.go file, you can see the
This saves the
models.Car object into a
cars collection. You can capture the new document id by changing it to be:
models.Car struct, you can find it in
Each field has already been defined with the
In your terminal:
You will need to create a user first. This POSTman request:
This curl request does the same thing:
token in the response somewhere.
As you can see, we have successfully written to Mongo. Let's try to run the
Save code we just created. You can do it with this POSTman request:
This curl command does the same thing.
If you navigate back to Mongo Compass, you may not see your new data. You may have to hit
CMD + R or
As you can see, we have created our new object and saved it to Mongo.
Thanks for reading!