PowerShell REST API高级集成技术
OAuth2认证流程
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| $tokenParams = @{
Uri = 'https://login.microsoftonline.com/tenant/oauth2/v2.0/token'
Method = 'POST'
Body = @{
client_id = $clientId
scope = 'https://graph.microsoft.com/.default'
client_secret = $secret
grant_type = 'client_credentials'
}
}
$token = Invoke-RestMethod @tokenParams
$headers = @{Authorization = "Bearer $($token.access_token)"}
|
分页数据获取
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| $result = while ($true) {
$response = Invoke-RestMethod -Uri $url -Headers $headers
$response.value
if (-not $response.'@odata.nextLink') { break }
$url = $response.'@odata.nextLink'
}
|
错误重试机制
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| function Invoke-RetryRequest {
param(
[scriptblock]$Action,
[int]$MaxRetries = 3
)
$attempt = 0
do {
try {
return & $Action
}
catch {
$attempt++
if ($attempt -ge $MaxRetries) { throw }
Start-Sleep -Seconds (2 * $attempt)
}
} while ($true)
}
|
最佳实践
- 令牌缓存与自动刷新
- 请求速率限制处理
- 异步批量数据处理
- 响应数据验证机制
安全规范
- 敏感信息加密存储
- 使用HTTPS严格模式
- 限制API权限范围
- 定期轮换访问凭证
