CodeSampleX

サンプル

google.golang.org/api v0.8.0

検証済みサンプル — golang google.golang.org/api v0.8.0. go 1.26 · linux debian/x64 · docker で contract を実行し、成功しました: option.WithEndpoint, option.WithAPIKey, and…

sha256:35baf9c03dcec98995f7d4a6c4ab0f161a0b58532af24294116b96f042933b8c

このネットワークが提供するのは一つだけです。ビルドされるサンプル。サンドボックスで実行し、署名済みの受領証を保管します。等級はつけず、何も保証しません — 同じコードがあなたの環境でビルドされるかは測定していません。 合格した契約受領証を提出した異なる署名鍵の数です。1 なら作者だけ、2 以上なら他の誰かもビルドしています。鍵は自己生成で背後に登録された身元がないため、数えているのは人ではなく鍵です。 MIT-0

実行証拠

宣言された環境と署名済みの実行を分けてあります。このサンプルが何をどこで実行したかをそのまま確認できます。

証拠の基準
署名済みコントラクト合格
検証レシート
1
ビルドした署名鍵
1
宣言された環境 linux 24 · ubuntu · glibc 2.39 x64 go

検証実行環境

環境 コントラクト ステージ 実行日
go 1.26 · linux debian/x64 · docker ed25519:c1973797be207ac4 PASS compile:PASS · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1golang:1.26@sha256:e30143be198a…		 2026-10-18

ケース

HOW
ゴール
verify pkg:golang/google.golang.org/api@v0.8.0
パッケージ
作成日
2026-10-18T20:35:42Z

コントラクト

  1. option.WithEndpoint, option.WithAPIKey, and option.WithUserAgent populate DialSettings fields and pass DialSettings.Validate
  2. Combining option.WithoutAuthentication with option.WithAPIKey causes DialSettings.Validate to return an error
  3. googleapi.CheckResponse returns nil for 2xx HTTP responses and *googleapi.Error with parsed Code and Message for 4xx JSON error responses
  4. googleapi.Expand substitutes {var} and {+var} URI template parameters in url.URL.Path

ファイル

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • spec.json
  • test/contract.go

ソースアーティファクトをダウンロード (tar.gz)

ソース

PROMPT.md
Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify pkg:golang/google.golang.org/api@v0.8.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:golang/google.golang.org/api@v0.8.0

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.
csx.json
{"buildCommand":["go","build","-p=1","google.golang.org/api/option","google.golang.org/api/googleapi"],"case":{"caseId":"case:sha256:34515c2e875afc1ef9be999d39c7a6dc090f11c5a14fb3d8eac49232a003b4f9","contract":["option.WithEndpoint, option.WithAPIKey, and option.WithUserAgent populate DialSettings fields and pass DialSettings.Validate","Combining option.WithoutAuthentication with option.WithAPIKey causes DialSettings.Validate to return an error","googleapi.CheckResponse returns nil for 2xx HTTP responses and *googleapi.Error with parsed Code and Message for 4xx JSON error responses","googleapi.Expand substitutes {var} and {+var} URI template parameters in url.URL.Path"],"goal":"verify pkg:golang/google.golang.org/api@v0.8.0","kind":"HOW","packages":["pkg:golang/google.golang.org/api@v0.8.0"],"schemaVersion":1},"contractCommand":["go","run","-p=1","-ldflags=-s -w","./test"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"golang","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"go","schemaVersion":1},"license":"MIT-0","packages":["pkg:golang/google.golang.org/api@v0.8.0"],"schemaVersion":1,"subject":"pkg:golang/google.golang.org/api@v0.8.0","verifierAdapter":"golang@1"}
go.mod
module example.com/sample

go 1.24

require google.golang.org/api v0.8.0

require (
	cloud.google.com/go v0.38.0 // indirect
	github.com/golang/protobuf v1.3.1 // indirect
	golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c // indirect
	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 // indirect
	golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b // indirect
	golang.org/x/text v0.3.2 // indirect
	google.golang.org/appengine v1.5.0 // indirect
	google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873 // indirect
	google.golang.org/grpc v1.20.1 // indirect
)
go.sum
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.38.0 h1:ROfEUZz+Gh5pa62DJWXSaonyu3StP6EA6lPEXPI6mCo=
cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.1 h1:YF8+flBXS5eO826T4nzqPrxfhQThhXl0YzfuUPu4SBg=
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
github.com/google/go-cmp v0.3.0 h1:crn/baboCvb5fXaQ0IJ1SGTsTVrWpDsCWC8EGETZijY=
github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c h1:uOCk1iQW6Vc18bnC13MfzScl+wdKBmM9Y9kU7Z83/lw=
golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 h1:SVwTIAaPC2U/AvvLNZ2a7OVsmBpC8L5BlwK1whH3hm0=
golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b h1:ag/x1USPSsqHud38I9BAC88qdNLDHHtQ4mlgQIZPPNA=
golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190506145303-2d16b83fe98c/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
google.golang.org/api v0.8.0 h1:VGGbLNyPF7dvYHhcUGYBBGCRDDK0RRJAI6KCvo0CL+E=
google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.5.0 h1:KxkO13IPW4Lslp2bz+KHP2E3gtFlrIGNThxkZQ3g+4c=
google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190418145605-e7d98fc518a7/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873 h1:nfPFGzJkUDX6uBmpN/pSw7MbOAWegH5QDQuoXFHedLg=
google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.20.1 h1:Hz2g2wirWK7H0qIIhGIqRGTuMwTE8HEKFnDZZ7lm9NU=
google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:golang/google.golang.org/api@v0.8.0",
  "kind": "HOW",
  "packages": [
    "pkg:golang/google.golang.org/api@v0.8.0"
  ]
}
test/contract.go
package main

import (
	"bytes"
	"fmt"
	"io"
	"net/http"
	"net/url"
	"os"
	"reflect"

	"google.golang.org/api/googleapi"
	"google.golang.org/api/option"
)

func fail(msg string, args ...any) {
	fmt.Fprintf(os.Stderr, "FAIL: "+msg+"\n", args...)
	os.Exit(1)
}

func newDialSettings() reflect.Value {
	optType := reflect.TypeOf((*option.ClientOption)(nil)).Elem()
	applyMethod, ok := optType.MethodByName("Apply")
	if !ok || applyMethod.Type.NumIn() != 1 {
		fail("unexpected option.ClientOption.Apply signature")
	}
	return reflect.New(applyMethod.Type.In(0).Elem())
}

func applyOptions(opts ...option.ClientOption) (reflect.Value, error) {
	ds := newDialSettings()
	for _, opt := range opts {
		reflect.ValueOf(opt).MethodByName("Apply").Call([]reflect.Value{ds})
	}
	res := ds.MethodByName("Validate").Call(nil)
	var err error
	if !res[0].IsNil() {
		err = res[0].Interface().(error)
	}
	return ds.Elem(), err
}

func main() {
	// 1. option.WithEndpoint, option.WithAPIKey, and option.WithUserAgent populate DialSettings fields and pass Validate.
	ds, err := applyOptions(
		option.WithEndpoint("https://example.com:443"),
		option.WithAPIKey("placeholder-option-value"),
		option.WithUserAgent("custom-agent/1.0"),
	)
	if err != nil {
		fail("expected valid DialSettings, got error: %v", err)
	}
	if got := ds.FieldByName("Endpoint").String(); got != "https://example.com:443" {
		fail("expected Endpoint %q, got %q", "https://example.com:443", got)
	}
	if got := ds.FieldByName("APIKey").String(); got != "placeholder-option-value" {
		fail("expected APIKey %q, got %q", "placeholder-option-value", got)
	}
	if got := ds.FieldByName("UserAgent").String(); got != "custom-agent/1.0" {
		fail("expected UserAgent %q, got %q", "custom-agent/1.0", got)
	}

	// 2. Combining option.WithoutAuthentication with option.WithAPIKey fails DialSettings.Validate.
	_, errConflict := applyOptions(
		option.WithoutAuthentication(),
		option.WithAPIKey("placeholder-option-value"),
	)
	if errConflict == nil {
		fail("expected error when combining WithoutAuthentication and WithAPIKey, got nil")
	}

	// 3. googleapi.CheckResponse returns nil for 2xx HTTP responses and *googleapi.Error with parsed Code and Message for 4xx responses.
	okResp := &http.Response{
		StatusCode: http.StatusOK,
		Body:       io.NopCloser(bytes.NewBufferString(`{"ok":true}`)),
	}
	if err := googleapi.CheckResponse(okResp); err != nil {
		fail("expected nil from CheckResponse on 200 OK, got: %v", err)
	}

	errResp := &http.Response{
		StatusCode: http.StatusBadRequest,
		Header:     http.Header{"Content-Type": []string{"application/json"}},
		Body:       io.NopCloser(bytes.NewBufferString(`{"error":{"code":400,"message":"invalid parameter"}}`)),
	}
	checkErr := googleapi.CheckResponse(errResp)
	gErr, ok := checkErr.(*googleapi.Error)
	if !ok {
		fail("expected *googleapi.Error from CheckResponse on 400, got: %T (%v)", checkErr, checkErr)
	}
	if gErr.Code != 400 || gErr.Message != "invalid parameter" {
		fail("unexpected googleapi.Error fields: code=%d message=%q", gErr.Code, gErr.Message)
	}

	// 4. googleapi.Expand substitutes standard {var} and reserved {+var} URI template parameters into url.URL.
	u := &url.URL{Path: "/v1/projects/{project}/items/{+name}"}
	googleapi.Expand(u, map[string]string{
		"project": "my-proj",
		"name":    "folders/a/b",
	})
	if u.Path != "/v1/projects/my-proj/items/folders/a/b" {
		fail("unexpected expanded URL path: %q", u.Path)
	}

	fmt.Println("PASS")
}

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