These scripts will create the application database user. volumes: We will mount first the data directory of MongoDB to a directory in host (because we don’t want our data to be removed when the container restarts), then log directory and finally the directory with initial scripts when the container starts for the first time.environment: It has several env vars including the root username/password, application database and the username/password for the application database user.$MONGO_HOST_PORT is an environment variable that we have defined for our docker-compose. This allows outer world to access the MongoDB instance. ports: Says to bind the host port $MONGO_HOST_PORT to the port 27017 of the container.restart: unless-stopped means that if something bad internally happens in the container, restart it, unless some user stops the container manually.hostname: Tells docker that this service has the hostname equal to mongo within the network among our services.container_name: Name of the final container for this service.mvnw.cmd spring-boot:run), you’ll see this error:
#Docker for mac mongodb code
I think the code inside the API is simple and don’t need any description.For example if my API wants 10 arguments, then my API function parameters will remain like this :-) I tend to write my APIs this way (using classes for inputs and outputs), because it gives me more flexibility if the number of parameters increase over time. If you checkout the input for this API, I did not use any annotation for parameter mapping, and just used our GetLoveInput class. This API will appear in /love/index path as a GET method. Later we need to inject this service and of course I am not going to discuss Dependency Inject (One of the five rules in SOLID principles). Our controller depends on ILoveService, so we have added it in the constructor.I am not going to discuss attribute routing here, but there’s a good starter point for you. Controller has a for its routing purposes.Controller needs a annotation to declare itself as a controller.So, we go to the Maven website and look spring-boot-starter-web package: link, choose our version which right now is 2.4.0 and then click on it: In order to be able to code for the web we need the spring-boot-starter-web dependency. So far we’ve just added the basic dependencies of Spring Boot: Core and Test. REST API → Add Project Dependencies and Configure them
#Docker for mac mongodb install
Just install Java Extension Pack or any other extensions to start coding Java.īut it just wrote a “build successful” message and quit! Its because we have not added appropriate dependencies. And I won’t respect CLEAN folder structuring as we are in a hurry! From now on, every java file that I address, is under: src\main\java\com\love\backend\įor the coding part, I wanted to use IntelliJ IDEA for this tutorial, but as I love Microsoft and its products, I’m going to use VSCode. In this article I am not going to dig into testing (maybe another time) and just focus on files under the main folder to write a simple REST API.
Under main folder we have our code and under test folder we may write tests. Open this, and follow:Ĭodes are in src folder. Spring website gives us good starting point. MongoDB is the most famous NoSQL DBMS (Database Management System) out there! For comprehending this article, it doesn’t matter if you know MongoDB/NoSQL or not, although I strongly suggest that if you are not familiar with this family of DBMSs don’t waste the time! REST API - > Create the project This surely makes things more interesting! What is MongoDB and why have I chosen this? If you’ve never heard of it, or you want to read what the creators are saying, I recommend that you take a look at their website and come back.Īccording to go.java, Netflix uses Spring Boot heavily for their services. Spring Boot is an open source Java-based framework used to create a web applications and/or micro services.
Also, the source code for this article is here. I will try to be through and explain every bit of what’s going on. This article is good for those like me who want to enter the Java Back End realm from somewhere else (.NET Core & NodeJs in my case).
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