Azure DocumentDB Rest API PowerShell删除集合401 Unathorized

Question

需要在自动化过程中删除集合。 尝试执行下面的脚本。让操作正常工作，但删除操作失败，并显示“（401）Unathorized”错误。这是奇怪的原因删除收集不需要额外的标题。有人可以给出一个提示，有什么不对？

$accountName = 'someaccountname' 
$connectionKey = 'masterkey' 
$collectionName = 'mycollection' 
$databaseName = 'mydatabase' 

function GetKey([System.String]$Verb = '',[System.String]$ResourceId = '', 
     [System.String]$ResourceType = '',[System.String]$Date = '',[System.String]$masterKey = '') { 
    $keyBytes = [System.Convert]::FromBase64String($masterKey) 
    $text = @($Verb.ToLowerInvariant() + "`n" + $ResourceType.ToLowerInvariant() + "`n" + $ResourceId + "`n" + $Date.ToLowerInvariant() + "`n" + "`n") 
    $body =[Text.Encoding]::UTF8.GetBytes($text) 
    $hmacsha = new-object -TypeName System.Security.Cryptography.HMACSHA256 -ArgumentList (,$keyBytes) 
    $hash = $hmacsha.ComputeHash($body) 
    $signature = [System.Convert]::ToBase64String($hash) 
    [System.Web.HttpUtility]::UrlEncode($('type=master&ver=1.0&sig=' + $signature)) 
} 
function BuildHeaders([string]$action = "get",[string]$resType, [string]$resourceId){ 
    $authz = GetKey -Verb $action -ResourceType $resType -ResourceId $resourceId -Date $apiDate -masterKey $connectionKey 
    $headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]" 
    $headers.Add("Authorization", $authz) 
    $headers.Add("x-ms-version", '2015-12-16') 
    $headers.Add("x-ms-date", $apiDate) 
    $headers 
} 
function GetUTDate() { 
    $date = get-date 
    $date = $date.ToUniversalTime(); 
    return $date.ToString("r", [System.Globalization.CultureInfo]::InvariantCulture); 
} 
function GetDatabases() { 
    $uri = $rootUri + "/dbs" 
    $hdr = BuildHeaders -resType dbs 
    $response = Invoke-RestMethod -Uri $uri -Method Get -Headers $hdr 
    $response.Databases 
    Write-Host ("Found " + $Response.Databases.Count + " Database(s)") 
} 
function GetCollections([string]$dbname){ 
    $uri = $rootUri + "/" + $dbname + "/colls" 
    $hdr = BuildHeaders -resType colls -resourceId $dbname 
    $response = Invoke-RestMethod -Uri $uri -Method Get -Headers $hdr 
    $response.DocumentCollections 
    Write-Host ("Found " + $Response.DocumentCollections.Count + " DocumentCollection(s)") 
} 
function DeleteCollection([string]$dbname){ 
    $uri = $rootUri + "/" + $dbname + "/colls" + "/" + $collectionName 
    $hdrs = BuildHeaders -action DELETE -resType colls -resourceId $collectionName 
    $response = Invoke-RestMethod -Uri $uri -Method Delete -Headers $hdrs 
    Write-Host "DELETE $uri" 
} 
$rootUri = "https://" + $accountName + ".documents.azure.com" 
write-host ("Root URI is " + $rootUri) 

#validate arguments 
$apiDate = GetUTDate 
$db = GetDatabases | where { $_.id -eq $databaseName } 

if ($db -eq $null) { 
    write-error "Could not find database in account" 
    return 
} 

$dbname = "dbs/" + $databaseName 
$collection = GetCollections -dbname $dbname | where { $_.id -eq $collectionName } 

if($collection -eq $null){ 
    write-error "Could not find collection in database" 
    return 
} 
Write-Host 
$Delete = DeleteCollection -dbname $dbname | where { $_.id -eq $collectionName } 

Answer 1

通常情况下，无论是Authorization还是x-ms-date标头未设置（或授权标头的授权令牌无效），401 unauthorized error都会返回。我使用fiddler捕获请求并检查响应，并且我发现授权和x-ms-date标头都已设置，所以看起来授权标头设置为无效授权令牌。根据您的代码，我做了一些更改，并且该功能可以在我身边正常工作。

function DeleteCollection([string]$dbname){ 
    $uri = $rootUri + "/" + $dbname + "/colls" + "/" + $collectionName 
    $collectionName = $dbname + "/colls" + "/" + $collectionName 
    $hdrs = BuildHeaders -action DELETE -resType colls -resourceId $collectionName 
    #Write-Host "resourceId $collectionName" 
    $response = Invoke-RestMethod -Uri $uri -Method Delete -Headers $hdrs 
    Write-Host "resource $collectionName" 
    Write-Host "DELETE $uri" 
} 

的$集合名应该dbs/{yourdbname}/colls/{yourcollectionname}

Answer 2

如果存在挂起的操作，则可能发生这种情况。重试直到它成功或在删除之前添加延迟。对我们来说，半秒就足以保证我们再也看不到这一点。