Simple implementation of Microservices Using Spring Cloud.
- In the parent folder: spring-cloud-microservice do: mvn clean install
<Perform Steps 2-6 in parallel on individual command prompts>
-
Launch config-microservice
- mvn spring-boot:run
- this will launch on port 8888
-
Launch discovery-microservice
- mvn spring-boot:run
- this will launch on port 8761
-
Launch api-gateway-microservice
- mvn spring-boot:run
- this will launch on port 10000
-
Launch product-catalog-microservice
- mvn spring-boot:run this will launch on port 8081
- mvn spring-boot:run -Drun.jvmArguments='-Dserver.port=8900' this will launch on port 8900
-
Launch price-microservice
- mvn spring-boot:run this will launch on port 8080
-
Load : http://localhost:8761/
- you should be able to see:
- you should be able to see:
-
You can Spawn multiple instances of your microservice using the command 5.2. All these instances must show up in the above console
-
All calls to actual services will go via API Gateway, which will act like a proxy to the microservice having business logic.
-
Working with Product Catalog:
- Adding product to the catalog
curl -i -X POST -H "Content-Type:application/json" -d "{ \"productName\" :
\"cherry\", \"productType\" : \"fruit\" }" http://localhost:10000/productcatalogservice/catalog
HTTP/1.1 201 Created
Server: Apache-Coyote/1.1
X-Application-Context: gateway:10000
Location: http://localhost:10000/productcatalogservice/catalog/3
Date: Sat, 22 Apr 2017 20:42:25 GMT
Content-Type: application/hal+json;charset=UTF-8
Transfer-Encoding: chunked
{
"productName" : "cherry",
"productType" : "fruit",
"_links" : {
"self" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/3"
},
"product" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/3"
}
}
}-- View all products on the catalog
curl http://localhost:10000/productcatalogservice/catalog
{
"_embedded" : {
"products" : [ {
"productName" : "apple",
"productType" : "fruit",
"_links" : {
"self" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/1"
},
"product" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/1"
}
}
}, {
"productName" : "apple",
"productType" : "fruit",
"_links" : {
"self" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/2"
},
"product" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/2"
}
}
}, {
"productName" : "cherry",
"productType" : "fruit",
"_links" : {
"self" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/3"
},
"product" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/3"
}
}
} ]
},
"_links" : {
"self" : {
"href" : "http://localhost:10000/productcatalogservice/catalog"
},
"profile" : {
"href" : "http://localhost:10000/productcatalogservice/profile/catalog"
},
"search" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/search"
}
},
"page" : {
"size" : 20,
"totalElements" : 3,
"totalPages" : 1,
"number" : 0
}
}-- find specific item on the catalog
curl http://localhost:10000/productcatalogservice/catalog/search/findByProductName?name=cherry
{
"_embedded" : {
"products" : [ {
"productName" : "cherry",
"productType" : "fruit",
"_links" : {
"self" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/3"
},
"product" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/3"
}
}
} ]
},
"_links" : {
"self" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/search/findByProductName?name=cherry"
}
}
}
curl http://localhost:10000/productcatalogservice/catalog/search/findByProductType?type=fruit
{
"_embedded" : {
"products" : [ {
"productName" : "apple",
"productType" : "fruit",
"_links" : {
"self" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/1"
},
"product" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/1"
}
}
}, {
"productName" : "apple",
"productType" : "fruit",
"_links" : {
"self" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/2"
},
"product" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/2"
}
}
}, {
"productName" : "cherry",
"productType" : "fruit",
"_links" : {
"self" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/3"
},
"product" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/3"
}
}
} ]
},
"_links" : {
"self" : {
"href" : "http://localhost:10000/productcatalogservice/catalog/search/findByProductType?type=fruit"
}
}
}- Working with Pricing service:
--Adding price of a product
curl -i -X POST -H "Content-Type:application/json" -d "{ \"productName\" :\"cherry\", \"price\" : \"10.00\" }" http://localhost:10000/pricingservice/price
HTTP/1.1 201 Created
Server: Apache-Coyote/1.1
X-Application-Context: gateway:10000
Location: http://localhost:10000/pricingservice/price/2
Date: Sat, 22 Apr 2017 20:40:29 GMT
Content-Type: application/hal+json;charset=UTF-8
Transfer-Encoding: chunked
{
"productName" : "cherry",
"price" : "10.00",
"_links" : {
"self" : {
"href" : "http://localhost:10000/pricingservice/price/2"
},
"price" : {
"href" : "http://localhost:10000/pricingservice/price/2"
}
}
}
-- getting price of the item
curl http://localhost:10000/pricingservice/price/search/findByProductName?name=cherry
{
"_embedded" : {
"price" : [ {
"productName" : "cherry",
"price" : "10.00",
"_links" : {
"self" : {
"href" : "http://localhost:10000/pricingservice/price/2"
},
"price" : {
"href" : "http://localhost:10000/pricingservice/price/2"
}
}
} ]
},
"_links" : {
"self" : {
"href" : "http://localhost:10000/pricingservice/price/search/findByProductName?name=cherry"
}
}
}