docker / awesome-compose

API Endpoints for docker/awesome-compose

In this section, the focus is on the routes defined within the Docker Compose setup in the docker/awesome-compose repository, particularly for applications leveraging the Golang backend. Understanding these routes is crucial for manipulating API endpoints and enhancing service interactions.

Golang Backend Routes

The backend implemented in Go can be found under the module:

github.com/docker/awesome-compose/nginx-golang/backend

Defining Routes

In most Go web servers, routes are defined using a router. For example, in a typical file, you might find code similar to this:

package main


import (
"net/http"
"github.com/gorilla/mux"
)


func main() {
r := mux.NewRouter()


r.HandleFunc("/api/v1/tasks", getTasksHandler).Methods("GET")
r.HandleFunc("/api/v1/tasks/{id}", getTaskHandler).Methods("GET")
r.HandleFunc("/api/v1/tasks", createTaskHandler).Methods("POST")
r.HandleFunc("/api/v1/tasks/{id}", updateTaskHandler).Methods("PUT")
r.HandleFunc("/api/v1/tasks/{id}", deleteTaskHandler).Methods("DELETE")


http.Handle("/", r)
http.ListenAndServe(":8080", nil)
}

Explanation of Routes

The above code snippet illustrates the definition of multiple routes in a Go application using the Gorilla Mux router:

  1. GET /api/v1/tasks

    • This route retrieves all tasks.

  2. GET /api/v1/tasks/{id}

    • This route retrieves a specific task based on the provided task ID.

  3. POST /api/v1/tasks

    • This allows for the creation of a new task via a JSON body.

  4. PUT /api/v1/tasks/{id}

    • This route updates a specific task based on the task ID.

  5. DELETE /api/v1/tasks/{id}

    • This deletes the specified task.

Building the Project

When building the Go application, it’s crucial to utilize the proper Go module settings. The project should not use the -mod=vendor flag as indicated in the guidelines. Instead, run the build command as follows:

go build -o app

This ensures that the project correctly pulls dependencies as defined in its go.mod file, streamlining the development process.

Example Handlers

The route handlers must be implemented to handle the requested operations. Here’s an example of a basic handler for the GET /api/v1/tasks route:

func getTasksHandler(w http.ResponseWriter, r *http.Request) {
tasks := []Task{
{ID: 1, Title: "Task One", Completed: false},
{ID: 2, Title: "Task Two", Completed: true},
}
json.NewEncoder(w).Encode(tasks)
}

Summary of Key Routes

  • /api/v1/tasks - List and create tasks.
  • /api/v1/tasks/{id} - Retrieve, update, and delete specific tasks.

Each route plays a pivotal role in the application’s functionality, enabling a full RESTful interface to interact with task resources.

For further reference on how routes are utilized within the provided Docker Compose configuration, please consult the original repository at docker/awesome-compose.