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https://github.com/izumin5210/grapi
😮 A surprisingly easy API server and generator in gRPC and Go
https://github.com/izumin5210/grapi
api golang grpc microservice
Last synced: about 2 months ago
JSON representation
😮 A surprisingly easy API server and generator in gRPC and Go
- Host: GitHub
- URL: https://github.com/izumin5210/grapi
- Owner: izumin5210
- License: mit
- Created: 2018-02-24T05:42:10.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2021-10-25T21:40:25.000Z (over 2 years ago)
- Last Synced: 2024-04-15T09:11:32.999Z (2 months ago)
- Topics: api, golang, grpc, microservice
- Language: Go
- Homepage: https://godoc.org/github.com/izumin5210/grapi/pkg/grapiserver
- Size: 982 KB
- Stars: 423
- Watchers: 9
- Forks: 39
- Open Issues: 35
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Lists
- awesome-grpc - grapi - 😮 A surprisingly easy API server and generator in gRPC and Go (Language-Specific / Go)
- awesome-list-microservice - grapi
README
# 
[](https://github.com/izumin5210/grapi/actions?workflow=CI)
[](https://godoc.org/github.com/izumin5210/grapi/pkg/grapiserver)
[](https://goreportcard.com/report/github.com/izumin5210/grapi)
[](http://github.com/izumin5210/grapi/releases/latest)
[](./LICENSE)
:open_mouth: A surprisingly easy API server and generator in gRPC and Go
## Features
- You can develop and deploy API servers blazingly fast :zap:
- Easy code generator
- application (inspired by `rails new` and `create-react-app`)
- gRPC services and their implementations (inspired by `rails g (scaffold_)controller`)
- User-friendly `protoc` wrapper (inspired by [protoeasy](https://github.com/peter-edge/protoeasy-go))
- Provides gRPC and HTTP JSON API with single implementation by using [grpc-gateway](https://github.com/grpc-ecosystem/grpc-gateway)
- Generates codes based on [google's API design guideline](https://cloud.google.com/apis/design/)
[](https://asciinema.org/a/176280)
## :warning: Migrate 0.4.x -> 0.5.x :warning:
[grapiserver](https://godoc.org/github.com/izumin5210/grapi/pkg/grapiserver) will not handle os signals from v0.5.x.
We recommend to use [`appctx.Global()`](https://godoc.org/github.com/srvc/appctx#Global) if you want to handle them.
:memo: How to migrate
0. Bump grapi version
- `go get -u github.com/izumin5210/[email protected]'
1. Update `cmd/server/run.go`
- ```diff
// Application context
- ctx := context.Background()
+ ctx := appctx.Global()
```
- ```diff
- return s.ServeContext(ctx)
+ return s.Serve(ctx)
```
## :warning: Migrate 0.3.x -> 0.4.x :warning:
Some tools that are depended by grapi are updated. If you have a grapi project <=v0.3.x, you should migrate it.
:memo: How to migrate
0. Bump grapi version
- If you use [dep](https://golang.github.io/dep/), update `Gopkg.toml`
```diff
[[constraint]]
name = "github.com/izumin5210/grapi"
- version = "0.3.0"
+ version = "0.4.0"
```
- and run `dep ensure`
1. Update [gex](https://github.com/izumin5210/gex) and `tools.go`
- ```
go get -u github.com/izumin5210/gex/cmd/gex
gex --regen
```
1. Initialize [Go Modules](https://github.com/golang/go/wiki/Modules)
- ```
go mod init
go mod tidy
```
1. Update `grapi.toml`
- ```diff
package = "yourcompany.yourappname"
[grapi]
server_dir = "./app/server"
[protoc]
protos_dir = "./api/protos"
out_dir = "./api"
import_dirs = [
"./api/protos",
- "./vendor/github.com/grpc-ecosystem/grpc-gateway",
- "./vendor/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis",
+ '{{ module "github.com/grpc-ecosystem/grpc-gateway" }}',
+ '{{ module "github.com/grpc-ecosystem/grpc-gateway" }}/third_party/googleapis',
]
[[protoc.plugins]]
name = "go"
args = { plugins = "grpc", paths = "source_relative" }
[[protoc.plugins]]
name = "grpc-gateway"
args = { logtostderr = true, paths = "source_relative" }
[[protoc.plugins]]
name = "swagger"
args = { logtostderr = true }
```
1. Drop dep
- ```
rm Gopkg.*
```
## :warning: Migrate 0.2.x -> 0.3.x :warning:
grapi v0.3.0 has some breaking changes. If you have a grapi project <=v0.2.x, you should migrate it.
:memo: How to migrate
0. Bump grapi version
- If you use [dep](https://golang.github.io/dep/), update `Gopkg.toml`
```diff
[[constraint]]
name = "github.com/izumin5210/grapi"
- version = "0.2.2"
+ version = "0.3.0"
```
- and run `dep ensure`
1. Introduce [gex](https://github.com/izumin5210/gex)
- ```
go get github.com/izumin5210/gex/cmd/gex
```
1. Add defualt generator plugins:
- ```
gex \
--add github.com/izumin5210/grapi/cmd/grapi \
--add github.com/izumin5210/grapi/cmd/grapi-gen-command \
--add github.com/izumin5210/grapi/cmd/grapi-gen-service \
--add github.com/izumin5210/grapi/cmd/grapi-gen-scaffold-service \
--add github.com/izumin5210/grapi/cmd/grapi-gen-type
```
1. Add protoc plugins via gex
- ```
gex \
--add github.com/golang/protobuf/protoc-gen-go \
--add github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway \
--add github.com/grpc-ecosystem/grpc-gateway/protoc-gen-swagger
```
- Remove protoc plugins from `Gopkg.toml`
```diff
-required = [
- "github.com/golang/protobuf/protoc-gen-go",
- "github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway",
- "github.com/grpc-ecosystem/grpc-gateway/protoc-gen-swagger",
-]
```
1. Update `grapi.toml`
- ```diff
+package = "yourcompany.yourappname"
+
[grapi]
server_dir = "./app/server"
[protoc]
protos_dir = "./api/protos"
out_dir = "./api"
import_dirs = [
+ "./api/protos",
"./vendor/github.com/grpc-ecosystem/grpc-gateway",
"./vendor/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis",
]
[[protoc.plugins]]
- path = "./vendor/github.com/golang/protobuf/protoc-gen-go"
name = "go"
args = { plugins = "grpc", paths = "source_relative" }
[[protoc.plugins]]
- path = "./vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway"
name = "grpc-gateway"
- args = { logtostderr = true }
+ args = { logtostderr = true, paths = "source_relative" }
[[protoc.plugins]]
- path = "./vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-swagger"
name = "swagger"
args = { logtostderr = true }
```
## Getting Started
### Create a new application
```
$ grapi init awesome-app
```
### Create a new service
```
$ grapi g service books
```
Or, if you need full [standard methods](https://cloud.google.com/apis/design/standard_methods), you can get them with following command:
```
$ grapi g scaffold-service books
```
And you should register generated services to the `grapiserver.Engine` instance:
```diff
// app/run.go
// Run starts the grapiserver.
func Run() error {
s := grapiserver.New(
grapiserver.WithDefaultLogger(),
grapiserver.WithServers(
+ server.NewBookServiceServer(),
- // TODO
),
)
return s.Serve()
}
```
If you updated service definition, you can re-generate `.pb.go` and `.pb.gw.go` with following command:
```
$ grapi protoc
```
### Start server
```
$ grapi server
```
### User-defined commands
```
$ grapi g command import-books
$ vim cmd/import-books/run.go # implements the command
$ grapi import-books # run the command
```
### Build commands (including server)
```
$ grapi build
```
## Installation
1. **grapi**
- Linux
- `curl -Lo grapi https://github.com/izumin5210/grapi/releases/download/v0.2.2/grapi_linux_amd64 && chmod +x grapi && sudo mv grapi /usr/local/bin`
- macOS
- `brew install izumin5210/tools/grapi`
- others
- `go get github.com/izumin5210/grapi/cmd/grapi`
1. **dep** or **Modules**
- [dep](https://golang.github.io/dep/)
- macOS
- `brew install dep`
- others
- See [Installation · dep](https://golang.github.io/dep/docs/installation.html)
- `curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh`
- [Modules](https://github.com/golang/go/wiki/Modules) (experimental)
- Use Go 1.11 and set `GO111MODULE=on` your env vars
1. **protoc**
- macOS
- `brew install protobuf`
- others
- Download and install from [google/protobuf](https://github.com/google/protobuf)