This is a simple API example which sums two values. Used for instructional purposes only.
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This is a simple API example which sums two values (a and b). It is meant to be used for instructional purposes only.
The API listens on port: 1234
API Endpoints:
This will run the application with the go application. It assumes that you have installed your golang environment correctly.
$ cd src
$ go run main.go
2bitprogrammers/api_addition v2007.21a
www.2BitProgrammers.com
Copyright (C) 2020. All Rights Reserved.
2020/12/08 21:02:05 Starting App on Port 1234
CTRL+C
This will run the components on your local system without using minikube or kubernetes.
$ docker build . -t 2bitprogrammers/api_addition
Sending build context to Docker daemon 16.38kB
Step 1/11 : FROM golang:alpine AS builder
---> b3bc898ad092
Step 2/11 : ENV GO111MODULE=on CGO_ENABLED=0 GOOS=linux GOARCH=amd64
---> Using cache
---> 8462443c0070
Step 3/11 : WORKDIR /build
---> Using cache
---> 99600623930c
Step 4/11 : COPY $PWD/src/go.mod .
---> Using cache
---> e88906c713f8
Step 5/11 : COPY $PWD/src/main.go .
---> Using cache
---> d63b1c87b2ae
Step 6/11 : RUN go mod download
---> Using cache
---> 437d19f670ae
Step 7/11 : RUN go build -o api_addition .
---> Using cache
---> 4f23ea20130b
Step 8/11 : FROM scratch
--->
Step 9/11 : WORKDIR /
---> Using cache
---> a66c59ea194a
Step 10/11 : COPY --from=builder /build/api_addition .
---> Using cache
---> 7c1bad4f3dc7
Step 11/11 : ENTRYPOINT [ "/api_addition" ]
---> Running in efc8216a4811
Removing intermediate container efc8216a4811
---> 6e118aa42002
Successfully built 6e118aa42002
Successfully tagged 2bitprogrammers/api_addition:latest
SECURITY WARNING: You are building a Docker image from Windows against a non-Windows Docker host. All files and directories added to build context will have '-rwxr-xr-x' permissions. It is recommended to double check and reset permissions for sensitive files and directories.
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
2bitprogrammers/api_addition latest 6e118aa42002 About a minute ago 6.68MB
$ docker run --rm --name "api_addition" -p 1234:1234 2bitprogrammers/api_addition
2bitprogrammers/api_addition v2007.21a
www.2BitProgrammers.com
Copyright (C) 2020. All Rights Reserved.
2020/12/08 21:02:05 Starting App on Port 1234
CTRL+C
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
6d7546f90be1 2bitprogrammers/api_addition "/api_addition" About a minute ago Up About a minute 0.0.0.0:1234->1234/tcp api_addition
$ curl http://localhost:1234/status
{"date":"2020-07-10T03:17:02.9034438-07:00","statusCode":200,"statusText":"OK","data":"{ \"healthy\": true}","errors":"","request":{"uri":"/status","method":"GET","payload":""}}
$ docker logs -f 2bitprogrammers/api_addition
2bitprogrammers/api_addition v2007.21a
www.2BitProgrammers.com
Copyright (C) 2020. All Rights Reserved.
2020/07/10 11:07:22 Starting App on Port 1234
2020/07/10 11:08:22 POST /add 200 { "a": 11, "b": 22 }
CTRL+C
$ docker stop api_addition
For the below examples, we will assume the following:
For Linux:
$ curl -X POST -H "Content-Type: application/json" -d '{ "a": 11, "b": 22 }' http://127.0.0.1:1234/add
{"date":"2020-07-10T03:17:02.9034438-07:00","statusCode":200,"statusText":"OK","data":"{ \"value\": 33 }","errors":"","request":{"uri":"/add","method":"POST","payload":"{\"a\": 11, \"b\": 22 }"}}
For Windows (powershell):
C:\ curl -X POST -H "Content-Type: application/json" -d "{ """a""": 11, """b""": 22 }" http://127.0.0.1:1234/add
{"date":"2020-07-10T03:17:02.9034438-07:00","statusCode":200,"statusText":"OK","data":"{ \"value\": 33 }","errors":"","request":{"uri":"/add","method":"POST","payload":"{\"a\": 11, \"b\": 22 }"}}
Content type
Image
Digest
Size
3.4 MB
Last updated
almost 6 years ago
docker pull 2bitprogrammers/api_addition