GitHub appメモ

羽計歩香というアプリを作った

developer.github.com

jwtのTokenを作るgoのコード

package main

import (
    "fmt"
    jwt "github.com/dgrijalva/jwt-go"
    "io/ioutil"
    "time"
)

func main() {
    key, err := ioutil.ReadFile("private-key.pem")
    if err != nil {
        panic(err)
    }
    privateKey, err := jwt.ParseRSAPrivateKeyFromPEM(key)
    if err != nil {
        panic(err)
    }

    t := jwt.New(jwt.SigningMethodRS256)
    t.Claims = jwt.MapClaims{
        "iat": time.Now().Unix(),
        "exp": time.Now().Add(time.Minute * 10).Unix(), // 最大10分
        "iss": <自分のIDを入れる>,
    }
    token, err := t.SignedString(privateKey)
    fmt.Printf("curl -i -H \"Authorization: Bearer %s\" -H \"Accept: application/vnd.github.machine-man-preview+json\" https://api.github.com/app", token)
}

$ eval $(go run jwt.go)

成功するといろいろ帰ってくる

HTTP/1.1 200 OK
Date: Wed, 10 Apr 2019 12:15:17 GMT
Content-Type: application/json; charset=utf-8
Content-Length: 1473
Server: GitHub.com
Status: 200 OK
Cache-Control: public, max-age=60, s-maxage=60
Vary: Accept
X-GitHub-Media-Type: github.machine-man-preview; format=json
Access-Control-Allow-Origin: *
...
{
  "id": **,
  "owner": {
    "login": "MizukiSonoko",
    ... 
  },
  "name": "羽計歩香go benchmark bot",
  "description": "Share benchmark result",
  "permissions": {
    "metadata": "read"
  },
  "events": [
    "repository"
  ]
}

access_tokenを取得するコード

package main

import (
    "fmt"
    jwt "github.com/dgrijalva/jwt-go"
    "io/ioutil"
    "time"
)

func main() {
    key, err := ioutil.ReadFile("private-key.pem")
    if err != nil {
        panic(err)
    }
    privateKey, err := jwt.ParseRSAPrivateKeyFromPEM(key)
    if err != nil {
        panic(err)
    }

    t := jwt.New(jwt.SigningMethodRS256)
    t.Claims = jwt.MapClaims{
        "iat": time.Now().Unix(),
        "exp": time.Now().Add(time.Minute * 10).Unix(), // 最大10分
        "iss": <自分のIDを入れる>,
    }

    token, err := t.SignedString(privateKey)
    fmt.Printf(
        "curl -i -X POST -H \"Authorization: Bearer %s\" -H \"Accept: application/vnd.github.machine-man-preview+json\" https://api.github.com/app/installations/%d/access_tokens",
        token,
        <自分のinstallations_id>)
}

実行

$ eval $(go run token.go)

成功するとTokenが帰ってくる

HTTP/1.1 201 Created
Date: Wed, 10 Apr 2019 13:16:40 GMT
Content-Type: application/json; charset=utf-8
Content-Length: 101
Server: GitHub.com
Status: 201 Created
Cache-Control: public, max-age=60, s-maxage=60
X-GitHub-Media-Type: github.machine-man-preview; format=json
...

{
  "token": "v1.***",
  "expires_at": "2019-04-10T14:16:40Z"
}