REPOSITORY TO LEARN FROM

google bookshelf

hex-example

go microservices frameworks

micro

go kit

DOCKER

# run server
docker-compose up 

# play with client
docker exec  $(docker ps -q --filter ancestor=gohexa) ./client add this is my first todo # add todo list
docker exec  $(docker ps -q --filter ancestor=gohexa) ./client add this is my second todo
docker exec  $(docker ps -q --filter ancestor=gohexa) ./client list #show all todos
docker exec  $(docker ps -q --filter ancestor=gohexa) ./client update 1 #check todo in list with id 1
docker exec  $(docker ps -q --filter ancestor=gohexa) ./client update 2
docker exec  $(docker ps -q --filter ancestor=gohexa) ./client delete 1  #delete todo in list with id 1

GO RUN

# start datastore server
go get -u cloud.google.com/go/datastore
gcloud components install cloud-datastore-emulator
gcloud beta emulators datastore start

# export variable for datastore localhost
$(gcloud beta emulators datastore env-init)

# run server
go run cmd/server/main.go -grpc

# run client
go run cmd/client/main.go -grpc add todo text
go run cmd/client/main.go -grpc list
go run cmd/client/main.go -grpc update id
go run cmd/client/main.go -grpc delete id

# add todo
curl -X POST http://localhost/todos -H 'Content-Type: application/json' -d '{ "text": "second todo" } '
# list todos
curl http://localhost/todos -H 'Content-Type: application/json'

grpc debugging

cat pb/add.json | prototool grpc pb \
--address 0.0.0.0:5000 \
--method pb.Todos/AddTodo \
--stdin

DEBUGGER

1. install DELVE!! vscode debugger DELVE!! vscode doc doc

vscode debug package

{
    "name": "Launch Package Working",
    "type": "go",
    "request": "launch",
    "mode": "debug",
    "program": "${fileDirname}",
    "env": {"DATASTORE_EMULATOR_HOST":"0.0.0.0:8081"},
},

remote DEBUGGER

{
    "name": "Connect to server",
    "type": "go",
    "request": "launch",
    "mode": "remote",
    "remotePath": "${workspaceFolder}",
    "port": 2345,
    "host": "127.0.0.1",
    "program": "${workspaceFolder}",
    "env": {"DATASTORE_EMULATOR_HOST":"0.0.0.0:8081"},
    "args": [],
},

2. run binary

./server

3. GET PID of running process

lsof -i:5000
# or
ps aux | grep server

4. run dlv

dlv attach 58400 --headless --listen=:2345 --log --api-version=2

5. run vscode remote debugger and create breakpoints