github.com/aws/aws-sdk-go-v2 v1.47.0: aws.Credentials

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 github.com/aws/aws-sdk-go-v2/aws.Credentials in pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0
Demonstrate these symbols/APIs:
  - github.com/aws/aws-sdk-go-v2/aws.Credentials

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.

{"case":{"caseId":"case:sha256:2de11d376eff862035b3e860cda864772ebd0cf5c62d21ec8257188ab9c36032","contract":["aws.Credentials stores AccessKeyID, SecretAccessKey, SessionToken, and Source fields correctly","aws.Credentials HasKeys returns true when AccessKeyID and SecretAccessKey are populated and false when either is empty","aws.Credentials Expired returns false when CanExpire is false even if Expires is in the past","aws.Credentials Expired returns true when CanExpire is true and Expires is in the past","aws.Credentials Expired returns false when CanExpire is true and Expires is in the future"],"goal":"verify github.com/aws/aws-sdk-go-v2/aws.Credentials in pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0","kind":"HOW","packages":["pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0"],"schemaVersion":1,"symbols":["github.com/aws/aws-sdk-go-v2/aws.Credentials"]},"contractCommand":["go","run","./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/github.com/aws/aws-sdk-go-v2@v1.47.0"],"schemaVersion":1,"subject":"pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0","symbols":["github.com/aws/aws-sdk-go-v2/aws.Credentials"],"verifierAdapter":"golang@1"}

module sample

go 1.26.6

require github.com/aws/aws-sdk-go-v2 v1.47.0

require github.com/aws/smithy-go v1.28.1 // indirect

github.com/aws/aws-sdk-go-v2 v1.47.0 h1:0jsHallhJCeaU0Ko48c/3FK1ctOQ7NpzggxriJOQ8MQ=
github.com/aws/aws-sdk-go-v2 v1.47.0/go.mod h1:bttEH6JqnUL8LepvDVfdrds/fZ5bCIxzpe3abyUrhDU=
github.com/aws/smithy-go v1.28.1 h1:R/nXH00c8qcfCzQVELtRw+eLQWtzv+VAIEFJ1/xxXlQ=
github.com/aws/smithy-go v1.28.1/go.mod h1:YE2RhdIuDbA5E5bTdciG9KrW3+TiEONeUWCqxX9i1Fc=

package main

import (
	"fmt"
	"time"

	"github.com/aws/aws-sdk-go-v2/aws"
)

func main() {
	creds := aws.Credentials{
		AccessKeyID:     "test-access-key-id",
		SecretAccessKey: "test-secret-access-key",
		SessionToken:    "test-session-token",
		Source:          "CustomProvider",
		CanExpire:       true,
		Expires:         time.Now().Add(15 * time.Minute),
	}

	fmt.Printf("HasKeys: %t\n", creds.HasKeys())
	fmt.Printf("Expired: %t\n", creds.Expired())
	fmt.Printf("Source: %s\n", creds.Source)
}

{
  "schemaVersion": 1,
  "goal": "verify github.com/aws/aws-sdk-go-v2/aws.Credentials in pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0",
  "kind": "HOW",
  "packages": [
    "pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0"
  ],
  "symbols": [
    "github.com/aws/aws-sdk-go-v2/aws.Credentials"
  ]
}

package main

import (
	"fmt"
	"os"
	"time"

	"github.com/aws/aws-sdk-go-v2/aws"
)

func main() {
	// 1. aws.Credentials stores AccessKeyID, SecretAccessKey, SessionToken, and Source fields correctly
	{
		creds := aws.Credentials{
			AccessKeyID:     "test-access-key-id",
			SecretAccessKey: "test-secret-access-key",
			SessionToken:    "test-session-token",
			Source:          "StaticCredentials",
		}
		if creds.AccessKeyID != "test-access-key-id" {
			fmt.Fprintf(os.Stderr, "Assertion 1 failed: expected AccessKeyID %q, got %q\n", "test-access-key-id", creds.AccessKeyID)
			os.Exit(1)
		}
		if creds.SecretAccessKey != "test-secret-access-key" {
			fmt.Fprintf(os.Stderr, "Assertion 1 failed: expected SecretAccessKey %q, got %q\n", "test-secret-access-key", creds.SecretAccessKey)
			os.Exit(1)
		}
		if creds.SessionToken != "test-session-token" {
			fmt.Fprintf(os.Stderr, "Assertion 1 failed: expected SessionToken %q, got %q\n", "test-session-token", creds.SessionToken)
			os.Exit(1)
		}
		if creds.Source != "StaticCredentials" {
			fmt.Fprintf(os.Stderr, "Assertion 1 failed: expected Source %q, got %q\n", "StaticCredentials", creds.Source)
			os.Exit(1)
		}
	}

	// 2. aws.Credentials HasKeys returns true when AccessKeyID and SecretAccessKey are populated and false when either is empty
	{
		valid := aws.Credentials{
			AccessKeyID:     "test-key",
			SecretAccessKey: "test-secret",
		}
		if !valid.HasKeys() {
			fmt.Fprintf(os.Stderr, "Assertion 2 failed: expected HasKeys() true for valid credentials\n")
			os.Exit(1)
		}

		empty := aws.Credentials{}
		if empty.HasKeys() {
			fmt.Fprintf(os.Stderr, "Assertion 2 failed: expected HasKeys() false for empty credentials\n")
			os.Exit(1)
		}

		missingSecret := aws.Credentials{
			AccessKeyID: "test-key",
		}
		if missingSecret.HasKeys() {
			fmt.Fprintf(os.Stderr, "Assertion 2 failed: expected HasKeys() false when secret is empty\n")
			os.Exit(1)
		}

		missingKeyID := aws.Credentials{
			SecretAccessKey: "test-secret",
		}
		if missingKeyID.HasKeys() {
			fmt.Fprintf(os.Stderr, "Assertion 2 failed: expected HasKeys() false when access key id is empty\n")
			os.Exit(1)
		}
	}

	// 3. aws.Credentials Expired returns false when CanExpire is false even if Expires is in the past
	{
		creds := aws.Credentials{
			AccessKeyID:     "test-key",
			SecretAccessKey: "test-secret",
			CanExpire:       false,
			Expires:         time.Now().Add(-1 * time.Hour),
		}
		if creds.Expired() {
			fmt.Fprintf(os.Stderr, "Assertion 3 failed: expected Expired() false when CanExpire is false\n")
			os.Exit(1)
		}
	}

	// 4. aws.Credentials Expired returns true when CanExpire is true and Expires is in the past
	{
		creds := aws.Credentials{
			AccessKeyID:     "test-key",
			SecretAccessKey: "test-secret",
			CanExpire:       true,
			Expires:         time.Now().Add(-5 * time.Minute),
		}
		if !creds.Expired() {
			fmt.Fprintf(os.Stderr, "Assertion 4 failed: expected Expired() true when CanExpire is true and Expires is past\n")
			os.Exit(1)
		}
	}

	// 5. aws.Credentials Expired returns false when CanExpire is true and Expires is in the future
	{
		creds := aws.Credentials{
			AccessKeyID:     "test-key",
			SecretAccessKey: "test-secret",
			CanExpire:       true,
			Expires:         time.Now().Add(1 * time.Hour),
		}
		if creds.Expired() {
			fmt.Fprintf(os.Stderr, "Assertion 5 failed: expected Expired() false when CanExpire is true and Expires is future\n")
			os.Exit(1)
		}
	}

	fmt.Println("PASS: all aws.Credentials contract assertions passed")
}