:sparkles: creating docker configuration

.dockerignore

···
+bin/
+*.hurl
+.git/
+.jj/

Dockerfile

···
+FROM golang:1.24 AS base
+
+WORKDIR /build
+
+COPY go.mod go.sum ./
+
+RUN go mod download
+
+COPY . .
+
+RUN go build -o bin/gateway cmd/app/main.go
+
+ENV PORT=8000
+EXPOSE 8000
+
+# Start the application
+CMD ["/build/bin/gateway"]

Dockerfile-stubby

···
+FROM node:24
+
+RUN npm install -g stubby
+
+WORKDIR /app
+
+CMD ["stubby", "-d", "mock.yml"]

cmd/app/main.go

···
 
 func main() {
 	providers := providers.NewUseProviders([]providers.Provider{
-		providers.NewBraintreeProvider(getEnv("BRAINTREE_URL", "localhost:8000")),
-		providers.NewStripeProvider(getEnv("STRIPE_URL", "localhost:8001")),
+		providers.NewBraintreeProvider(getEnv("BRAINTREE_URL", "localhost:8001")),
+		providers.NewStripeProvider(getEnv("STRIPE_URL", "localhost:8002")),
 	})
 	paymentsService := service.NewPaymentService(providers)
 
-	server := web.NewServer(paymentsService, "8000")
+	port := getEnv("PORT", "8000")
+	server := web.NewServer(paymentsService, port)
 	server.ConfigureRouter()
 
 	if err := server.Start(); err != nil {

docker-compose.yml

···
+services:
+  api-gateway:
+    build:
+      dockerfile: $PWD/Dockerfile
+    ports:
+      - "8000:8000"
+    environment:
+      PORT: 8000
+      BRAINTREE_URL: stripe
+      STRIPE_URL: braintree
+    depends_on:
+      - stripe
+      - braintree
+
+  stripe:
+    build:
+      dockerfile: $PWD/Dockerfile-stubby
+    environment:
+      PORT: 8882
+    volumes:
+      - $PWD/mocks/stripe.yml:/app/mock.yml
+
+  braintree:
+    build:
+      dockerfile: $PWD/Dockerfile-stubby
+    environment:
+      PORT: 8882
+    volumes:
+      - $PWD/mocks/braintree.yml:/app/mock.yml

mocks/braintree.yml

···
+- request:
+    url: ^/charge$
+    method: POST
+    headers:
+      content-type: application/json
+  response:
+    - status: 200
+      latency: 5000
+      headers:
+        content-type: application/json
+        server: stubbedServer/4.2
+      body: >
+        {
+        "amount": 1000,
+        "currency": "BRL",
+        "description": "",
+        "paymentMethod": {
+        "type": "card",
+        "card": {
+        "number": "",
+        "holderName": "",
+        "cvv": "",
+        "expirationDate": "22/2025",
+        "installments": 1
+        }
+        }
+        }

mocks/stripe.yml

···
+- request:
+    url: ^/transactions$
+    method: POST
+    headers:
+      content-type: application/json
+  response:
+    - status: 200
+      latency: 5000
+      headers:
+        content-type: application/json
+        server: stubbedServer/4.2
+      body: >
+        {
+        "amount": 1000,
+        "currency": "BRL",
+        "statementDescriptor": "",
+        "paymentType": "card",
+        "card": {
+        "number": "",
+        "holder": "",
+        "cvv": "",
+        "expiration": "22/2025",
+        "installmentNumber": 1
+        }
+        }