使用服務連接器整合 Azure Cosmos DB for Gremlin

發行項
10/14/2024

此頁面顯示支援的驗證方法和用戶端，並顯示範例程式碼，讓您可用來使用服務連接器，將 Azure Cosmos DB for Apache Gremlin 連線到其他雲端服務。在未使用服務連接器的情況下，您仍可透過其他程式設計語言連線到 Azure Cosmos DB for Gremlin。此頁面也顯示您在建立服務連線時取得的預設環境變數名稱和值。

支援的計算服務

服務連接器可用來將下列計算服務連線到 Azure Cosmos DB for Apache Gremlin：

Azure App Service
Azure 容器應用程式
Azure Functions
Azure Kubernetes Service (AKS)
Azure Spring Apps

支援的驗證類型和用戶端類型

下表顯示使用服務連接器將計算服務連線到 Azure Cosmos DB for Apache Gremlin 時，支援哪些用戶端類型和驗證方法的組合。「是」表示支援的組合，而「否」則表示不支援。

用戶端類型	系統指派的受控識別	使用者指派的受控識別	祕密 / 連接字串	服務主體
.NET	Yes	.是	.是	Yes
Java	Yes	.是	.是	Yes
Node.js	Yes	.是	.是	Yes
PHP	Yes	.是	.是	Yes
Python	Yes	.是	.是	Yes
Go	Yes	.是	.是	Yes
無	Yes	.是	.是	Yes

下表指出支源表格中所有用戶端類型和驗證方法組合。所有用戶端類型都可以使用任何驗證方法，使用服務連接器連線到 Azure Cosmos DB for Apache Gremlin。

預設環境變數名稱或應用程式屬性和範例程式碼

使用下列連線詳細資料，將計算服務連線到 Azure Cosmos DB for Apache Gremlin。針對下列範例，將預留位置文字 <Azure-Cosmos-DB-account>、<database>、<collection or graphs>、<username>、<password>、<resource-group-name>、<subscription-ID>、<client-ID>、<client-secret> 和 <tenant-id> 取代為您自己的資訊。如需命名慣例的詳細資訊，請參閱服務連接器內部一文。

系統指派的受控識別

預設環境變數名稱	描述	範例值
AZURE_COSMOS_LISTKEYURL	要取得連接字串的 URL	`https://management.azure.com/subscriptions/<subscription-ID>/resourceGroups/<resource-group-name>/providers/Microsoft.DocumentDB/databaseAccounts/<Azure-Cosmos-DB-account>/listKeys?api-version=2021-04-15`
AZURE_COSMOS_SCOPE	您的受控識別範圍	`https://management.azure.com/.default`
AZURE_COSMOS_RESOURCEENDPOINT	您的資源端點	`https://<Azure-Cosmos-DB-account>.documents.azure.com:443/`
AZURE_COSMOS_HOSTNAME	您的 Gremlin 唯一資源識別碼 (UFI)	`<Azure-Cosmos-DB-account>.gremlin.cosmos.azure.com`
AZURE_COSMOS_PORT	連線連接埠	443
AZURE_COSMOS_USERNAME	您的使用者名稱	`/dbs/<database>/colls/<collection or graphs>`

範例指令碼

請參閱下面的步驟和程式碼，使用系統指派的受控識別連線到 Azure Cosmos DB for Gremlin。

安裝相依性。

dotnet add package Gremlin.Net
dotnet add package Azure.Identity

使用 Azure.Identity (英文) 用戶端程式庫，取得受控識別或服務主體的存取權杖。使用存取權杖和 AZURE_COSMOS_LISTKEYURL 來取得密碼。從服務連接器新增的環境變數取得連線資訊，並連線到 Azure Cosmos DB for Apache Gremlin。使用下列程式代碼時，請取消註解您想要使用的驗證類型代碼段部分。

using System;
using System.Security.Authentication;
using System.Net.Security;
using System.Net.Http;
using System.Security.Authentication;
using System.Threading.Tasks;
using System;
using Gremlin.Net.Driver;
using Azure.Identity;

var gremlinEndpoint = Environment.GetEnvironmentVariable("AZURE_COSMOS_RESOURCEENDPOINT");
var userName = Environment.GetEnvironmentVariable("AZURE_COSMOS_USERNAME");
var gremlinPort = Int32.Parse(Environment.GetEnvironmentVariable("AZURE_COSMOS_PORT"));
var listKeyUrl = Environment.GetEnvironmentVariable("AZURE_COSMOS_LISTKEYURL");
var scope = Environment.GetEnvironmentVariable("AZURE_COSMOS_SCOPE");

// Uncomment the following lines corresponding to the authentication type you want to use.
// For system-assigned identity.
// var tokenProvider = new DefaultAzureCredential();

// For user-assigned identity.
// var tokenProvider = new DefaultAzureCredential(
//     new DefaultAzureCredentialOptions
//     {
//         ManagedIdentityClientId = Environment.GetEnvironmentVariable("AZURE_COSMOS_CLIENTID");
//     }
// );

// For service principal.
// var tenantId = Environment.GetEnvironmentVariable("AZURE_COSMOS_TENANTID");
// var clientId = Environment.GetEnvironmentVariable("AZURE_COSMOS_CLIENTID");
// var clientSecret = Environment.GetEnvironmentVariable("AZURE_COSMOS_CLIENTSECRET");
// var tokenProvider = new ClientSecretCredential(tenantId, clientId, clientSecret);

// Acquire the access token. 
AccessToken accessToken = await tokenProvider.GetTokenAsync(
    new TokenRequestContext(scopes: new string[]{ scope }));

// Get the password.
var httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Add("Authorization", $"Bearer {accessToken.Token}");
var response = await httpClient.POSTAsync(listKeyUrl);
var responseBody = await response.Content.ReadAsStringAsync();
var keys = JsonConvert.DeserializeObject<Dictionary<string, string>>(responseBody);
var password = keys["primaryMasterKey"];

// Connect to Azure Cosmos DB for Apache Gremlin
var server = new GremlinServer(
    hostname: gremlinEndpoint,
    port: gremlinPort,
    username: userName,
    password: password,
    enableSsl: true
);

using var client = new GremlinClient(
    gremlinServer: server,
    messageSerializer: new Gremlin.Net.Structure.IO.GraphSON.GraphSON2MessageSerializer()
);

在您的 pom.xml 中新增下列相依性：

<dependency>
  <groupId>org.apache.tinkerpop</groupId>
  <artifactId>gremlin-driver</artifactId>
  <version>3.4.13</version>
</dependency>
<dependency>
    <groupId>com.azure</groupId>
    <artifactId>azure-identity</artifactId>
    <version>1.1.5</version>
</dependency>

使用 azure-identity，取得受控識別或服務主體的存取權杖。使用存取權杖和 AZURE_COSMOS_LISTKEYURL 來取得密碼。從服務連接器新增的環境變數取得連線資訊，並連線到 Azure Cosmos DB for Apache Gremlin。使用下列程式代碼時，請取消註解您想要使用的驗證類型代碼段部分。

import org.apache.tinkerpop.gremlin.driver.Client;
import org.apache.tinkerpop.gremlin.driver.Cluster;
import javax.net.ssl.*;
import java.net.InetSocketAddress;
import com.azure.identity.*;
import com.azure.core.credential.*;
import java.net.http.*;
import java.net.URI;

int gremlinPort = Integer.parseInt(System.getenv("AZURE_COSMOS_PORT"));
String username = System.getenv("AZURE_COSMOS_USERNAME");
String gremlinEndpoint = System.getenv("AZURE_COSMOS_RESOURCEENDPOINT");
String listKeyUrl = System.getenv("AZURE_COSMOS_LISTKEYURL");
String scope = System.getenv("AZURE_COSMOS_SCOPE");

// Uncomment the following lines corresponding to the authentication type you want to use.
// For system managed identity.
// DefaultAzureCredential defaultCredential = new DefaultAzureCredentialBuilder().build();

// For user assigned managed identity.
// DefaultAzureCredential defaultCredential = new DefaultAzureCredentialBuilder()
//     .managedIdentityClientId(System.getenv("AZURE_COSMOS_CLIENTID"))
//     .build();

// For service principal.
// ClientSecretCredential defaultCredential = new ClientSecretCredentialBuilder()
//   .clientId(System.getenv("AZURE_COSMOS_CLIENTID"))
//   .clientSecret(System.getenv("AZURE_COSMOS_CLIENTSECRET"))
//   .tenantId(System.getenv("AZURE_COSMOS_TENANTID"))
//   .build();

// Get the access token.
AccessToken accessToken = defaultCredential.getToken(new TokenRequestContext().addScopes(new String[]{ scope })).block();
String token = accessToken.getToken();

// Get the password.
HttpClient client = HttpClient.newBuilder().build();
HttpRequest request = HttpRequest.newBuilder()
    .uri(new URI(listKeyUrl))
    .header("Authorization", "Bearer " + token)
    .POST()
    .build();
HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
JSONParser parser = new JSONParser();
JSONObject responseBody = parser.parse(response.body());
String gremlinPassword = responseBody.get("primaryMasterKey");

// Connect to Azure Cosmos DB for Apache Gremlin
Cluster cluster;
Client client;

cluster = Cluster.addContactPoint(gremlinEndpoint).port(gremlinPort).credentials(username, password).create();

安裝相依性。
```
pip install gremlinpython
```

使用 azure-identity 向受控識別或服務主體進行驗證，並向 AZURE_COSMOS_LISTKEYURL 傳送要求以取得密碼。從服務連接器新增的環境變數取得連線資訊，並連線到 Azure Cosmos DB for Apache Gremlin。使用下列程式代碼時，請取消註解您想要使用的驗證類型代碼段部分。

from gremlin_python.driver import client, serializer
import requests
from azure.identity import ManagedIdentityCredential, ClientSecretCredential

username = os.getenv('AZURE_COSMOS_USERNAME')
endpoint = os.getenv('AZURE_COSMOS_RESOURCEENDPOINT')
port = os.getenv('AZURE_COSMOS_PORT')
listKeyUrl = os.getenv('AZURE_COSMOS_LISTKEYURL')
scope = os.getenv('AZURE_COSMOS_SCOPE')

# Uncomment the following lines corresponding to the authentication type you want to use.
# For system-assigned managed identity
# cred = ManagedIdentityCredential()

# For user-assigned managed identity
# managed_identity_client_id = os.getenv('AZURE_COSMOS_CLIENTID')
# cred = ManagedIdentityCredential(client_id=managed_identity_client_id)

# For service principal
# tenant_id = os.getenv('AZURE_COSMOS_TENANTID')
# client_id = os.getenv('AZURE_COSMOS_CLIENTID')
# client_secret = os.getenv('AZURE_COSMOS_CLIENTSECRET')
# cred = ClientSecretCredential(tenant_id=tenant_id, client_id=client_id, client_secret=client_secret)

# Get the password 
session = requests.Session()
token = cred.get_token(scope)
response = session.post(listKeyUrl, headers={"Authorization": "Bearer {}".format(token.token)})
keys_dict = response.json()
password = keys_dict['primaryMasterKey']

# Connect to Azure Cosmos DB for Apache Gremlin.
client = client.Client(
    url=endpoint,
    traversal_source="g",
    username=username,
    password=password,
    message_serializer=serializer.GraphSONSerializersV2d0(),
)

安裝相依性。

go get github.com/Azure/azure-sdk-for-go/sdk/azidentity
go get github.com/go-gremlin/gremlin

在程式碼中，使用 azidentity 取得存取權杖，然後使用它來取得密碼。從服務連接器新增的環境變數取得連線資訊，並連線到 Azure Cosmos DB for Apache Gremlin。使用下列程式代碼時，請取消註解您想要使用的驗證類型代碼段部分。

import (
    "fmt"
    "os"
    "context"
    "log"
    "io/ioutil"
    "encoding/json"

    "github.com/go-gremlin/gremlin"
    "github.com/Azure/azure-sdk-for-go/sdk/azidentity"
)

func main() {
    username = os.Getenv("AZURE_COSMOS_USERNAME")
    endpoint = os.getenv("AZURE_COSMOS_RESOURCEENDPOINT")
    port = os.getenv("AZURE_COSMOS_PORT")
    listKeyUrl = os.Getenv("AZURE_COSMOS_LISTKEYURL")
    scope = os.Getenv("AZURE_COSMOS_SCOPE")

    // Uncomment the following lines corresponding to the authentication type you want to use.
    // For system-assigned identity.
    // cred, err := azidentity.NewDefaultAzureCredential(nil)

    // For user-assigned identity.
    // clientid := os.Getenv("AZURE_COSMOS_CLIENTID")
    // azidentity.ManagedIdentityCredentialOptions.ID := clientid
    // options := &azidentity.ManagedIdentityCredentialOptions{ID: clientid}
    // cred, err := azidentity.NewManagedIdentityCredential(options)

    // For service principal.
    // clientid := os.Getenv("AZURE_COSMOS_CLIENTID")
    // tenantid := os.Getenv("AZURE_COSMOS_TENANTID")
    // clientsecret := os.Getenv("AZURE_COSMOS_CLIENTSECRET")
    // cred, err := azidentity.NewClientSecretCredential(tenantid, clientid, clientsecret, &azidentity.ClientSecretCredentialOptions{})

    // Acquire the access token.
    ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
    token, err := cred.GetToken(ctx, policy.TokenRequestOptions{
        Scopes: []string{scope},
    })

    // Acquire the connection string.
    client := &http.Client{}
    req, err := http.NewRequest("POST", listKeyUrl, nil)
    req.Header.Add("Authorization", "Bearer " + token.Token)
    resp, err := client.Do(req)
    body, err := ioutil.ReadAll(resp.Body)
    var result map[string]interface{}
    json.Unmarshal(body, &result)
    password, err := result["primaryMasterKey"];

    auth := gremlin.OptAuthUserPass(username, password)
     client, err := gremlin.NewClient(endpoint, auth)
}

安裝相依性。

npm install gremlin
npm install --save @azure/identity

在程式碼中，使用 @azure/identity 取得存取權杖，然後使用它來取得密碼。從服務連接器新增的環境變數取得連線資訊，並連線到 Azure Cosmos DB for Apache Gremlin。使用下列程式代碼時，請取消註解您想要使用的驗證類型代碼段部分。

import { DefaultAzureCredential,ClientSecretCredential } from "@azure/identity";
import gremlin from 'gremlin'
const axios = require('axios');

let username = process.env.AZURE_COSMOS_USERNAME;
let endpoint = process.env.AZURE_COSMOS_RESOURCEENDPOINT;
let port = process.env.AZURE_COSMOS_PORT;
let listKeyUrl = process.env.AZURE_COSMOS_LISTKEYURL;
let scope = process.env.AZURE_COSMOS_SCOPE;

// Uncomment the following lines corresponding to the authentication type you want to use.  
// For system-assigned identity.
// const credential = new DefaultAzureCredential();

// For user-assigned identity.
// const clientId = process.env.AZURE_COSMOS_CLIENTID;
// const credential = new DefaultAzureCredential({
//     managedIdentityClientId: clientId
// });

// For service principal.
// const tenantId = process.env.AZURE_COSMOS_TENANTID;
// const clientId = process.env.AZURE_COSMOS_CLIENTID;
// const clientSecret = process.env.AZURE_COSMOS_CLIENTSECRET;

// Acquire the access token.
var accessToken = await credential.getToken(scope);

// Get the password.
const config = {
    method: 'post',
    url: listKeyUrl,
    headers: { 
      'Authorization': `Bearer ${accessToken.token}`
    }
};
const response = await axios(config);
const keysDict = response.data;
const password = keysDict['primaryMasterKey'];

const credentials = new gremlin.driver.auth.PlainTextSaslAuthenticator(
  username,
  password
)

const client = new gremlin.driver.Client(
  endpoint,
  {
    credentials,
    traversalsource: 'g',
    rejectUnauthorized: true,
    mimeType: 'application/vnd.gremlin-v2.0+json'
  }
)

client.open()

透過在 AZURE_COSMOS_LISTKEYURL 呼叫 REST API，取得具有受控識別或服務主體的存取權杖，以取得 Azure Cosmos DB for Gremlin 的主要金鑰。

$endpoint = getenv('AZURE_COSMOS_RESOURCEENDPOINT');
$username = getenv('AZURE_COSMOS_USERNAME');
$port = getenv('AZURE_COSMOS_PORT');

$db = new Connection([
    'host' => $endpoint,
    'username' => $username,
    'password' => $password,
    'port' => $port,
    'ssl' => TRUE
]);

使用者指派的受控識別

預設環境變數名稱	描述	範例值
AZURE_COSMOS_LISTKEYURL	要取得連接字串的 URL	`https://management.azure.com/subscriptions/<subscription-ID>/resourceGroups/<resource-group-name>/providers/Microsoft.DocumentDB/databaseAccounts/<Azure-Cosmos-DB-account>/listKeys?api-version=2021-04-15`
AZURE_COSMOS_SCOPE	您的受控識別範圍	`https://management.azure.com/.default`
AZURE_COSMOS_RESOURCEENDPOINT	您的資源端點	`https://<Azure-Cosmos-DB-account>.documents.azure.com:443/`
AZURE_COSMOS_HOSTNAME	您的 Gremlin 唯一資源識別碼 (UFI)	`<Azure-Cosmos-DB-account>.gremlin.cosmos.azure.com`
AZURE_COSMOS_PORT	連線連接埠	443
AZURE_COSMOS_USERNAME	您的使用者名稱	`/dbs/<database>/colls/<collection or graphs>`
AZURE_CLIENTID	您的用戶端識別碼	`<client_ID>`

範例指令碼

請參閱下面的步驟和程式碼，使用使用者指派的受控識別連線到 Azure Cosmos DB for Gremlin。

安裝相依性。

dotnet add package Gremlin.Net
dotnet add package Azure.Identity

using System;
using System.Security.Authentication;
using System.Net.Security;
using System.Net.Http;
using System.Security.Authentication;
using System.Threading.Tasks;
using System;
using Gremlin.Net.Driver;
using Azure.Identity;

var gremlinEndpoint = Environment.GetEnvironmentVariable("AZURE_COSMOS_RESOURCEENDPOINT");
var userName = Environment.GetEnvironmentVariable("AZURE_COSMOS_USERNAME");
var gremlinPort = Int32.Parse(Environment.GetEnvironmentVariable("AZURE_COSMOS_PORT"));
var listKeyUrl = Environment.GetEnvironmentVariable("AZURE_COSMOS_LISTKEYURL");
var scope = Environment.GetEnvironmentVariable("AZURE_COSMOS_SCOPE");

// Uncomment the following lines corresponding to the authentication type you want to use.
// For system-assigned identity.
// var tokenProvider = new DefaultAzureCredential();

// For user-assigned identity.
// var tokenProvider = new DefaultAzureCredential(
//     new DefaultAzureCredentialOptions
//     {
//         ManagedIdentityClientId = Environment.GetEnvironmentVariable("AZURE_COSMOS_CLIENTID");
//     }
// );

// For service principal.
// var tenantId = Environment.GetEnvironmentVariable("AZURE_COSMOS_TENANTID");
// var clientId = Environment.GetEnvironmentVariable("AZURE_COSMOS_CLIENTID");
// var clientSecret = Environment.GetEnvironmentVariable("AZURE_COSMOS_CLIENTSECRET");
// var tokenProvider = new ClientSecretCredential(tenantId, clientId, clientSecret);

// Acquire the access token. 
AccessToken accessToken = await tokenProvider.GetTokenAsync(
    new TokenRequestContext(scopes: new string[]{ scope }));

// Get the password.
var httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Add("Authorization", $"Bearer {accessToken.Token}");
var response = await httpClient.POSTAsync(listKeyUrl);
var responseBody = await response.Content.ReadAsStringAsync();
var keys = JsonConvert.DeserializeObject<Dictionary<string, string>>(responseBody);
var password = keys["primaryMasterKey"];

// Connect to Azure Cosmos DB for Apache Gremlin
var server = new GremlinServer(
    hostname: gremlinEndpoint,
    port: gremlinPort,
    username: userName,
    password: password,
    enableSsl: true
);

using var client = new GremlinClient(
    gremlinServer: server,
    messageSerializer: new Gremlin.Net.Structure.IO.GraphSON.GraphSON2MessageSerializer()
);

在您的 pom.xml 中新增下列相依性：

<dependency>
  <groupId>org.apache.tinkerpop</groupId>
  <artifactId>gremlin-driver</artifactId>
  <version>3.4.13</version>
</dependency>
<dependency>
    <groupId>com.azure</groupId>
    <artifactId>azure-identity</artifactId>
    <version>1.1.5</version>
</dependency>

import org.apache.tinkerpop.gremlin.driver.Client;
import org.apache.tinkerpop.gremlin.driver.Cluster;
import javax.net.ssl.*;
import java.net.InetSocketAddress;
import com.azure.identity.*;
import com.azure.core.credential.*;
import java.net.http.*;
import java.net.URI;

int gremlinPort = Integer.parseInt(System.getenv("AZURE_COSMOS_PORT"));
String username = System.getenv("AZURE_COSMOS_USERNAME");
String gremlinEndpoint = System.getenv("AZURE_COSMOS_RESOURCEENDPOINT");
String listKeyUrl = System.getenv("AZURE_COSMOS_LISTKEYURL");
String scope = System.getenv("AZURE_COSMOS_SCOPE");

// Uncomment the following lines corresponding to the authentication type you want to use.
// For system managed identity.
// DefaultAzureCredential defaultCredential = new DefaultAzureCredentialBuilder().build();

// For user assigned managed identity.
// DefaultAzureCredential defaultCredential = new DefaultAzureCredentialBuilder()
//     .managedIdentityClientId(System.getenv("AZURE_COSMOS_CLIENTID"))
//     .build();

// For service principal.
// ClientSecretCredential defaultCredential = new ClientSecretCredentialBuilder()
//   .clientId(System.getenv("AZURE_COSMOS_CLIENTID"))
//   .clientSecret(System.getenv("AZURE_COSMOS_CLIENTSECRET"))
//   .tenantId(System.getenv("AZURE_COSMOS_TENANTID"))
//   .build();

// Get the access token.
AccessToken accessToken = defaultCredential.getToken(new TokenRequestContext().addScopes(new String[]{ scope })).block();
String token = accessToken.getToken();

// Get the password.
HttpClient client = HttpClient.newBuilder().build();
HttpRequest request = HttpRequest.newBuilder()
    .uri(new URI(listKeyUrl))
    .header("Authorization", "Bearer " + token)
    .POST()
    .build();
HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
JSONParser parser = new JSONParser();
JSONObject responseBody = parser.parse(response.body());
String gremlinPassword = responseBody.get("primaryMasterKey");

// Connect to Azure Cosmos DB for Apache Gremlin
Cluster cluster;
Client client;

cluster = Cluster.addContactPoint(gremlinEndpoint).port(gremlinPort).credentials(username, password).create();

安裝相依性。
```
pip install gremlinpython
```

from gremlin_python.driver import client, serializer
import requests
from azure.identity import ManagedIdentityCredential, ClientSecretCredential

username = os.getenv('AZURE_COSMOS_USERNAME')
endpoint = os.getenv('AZURE_COSMOS_RESOURCEENDPOINT')
port = os.getenv('AZURE_COSMOS_PORT')
listKeyUrl = os.getenv('AZURE_COSMOS_LISTKEYURL')
scope = os.getenv('AZURE_COSMOS_SCOPE')

# Uncomment the following lines corresponding to the authentication type you want to use.
# For system-assigned managed identity
# cred = ManagedIdentityCredential()

# For user-assigned managed identity
# managed_identity_client_id = os.getenv('AZURE_COSMOS_CLIENTID')
# cred = ManagedIdentityCredential(client_id=managed_identity_client_id)

# For service principal
# tenant_id = os.getenv('AZURE_COSMOS_TENANTID')
# client_id = os.getenv('AZURE_COSMOS_CLIENTID')
# client_secret = os.getenv('AZURE_COSMOS_CLIENTSECRET')
# cred = ClientSecretCredential(tenant_id=tenant_id, client_id=client_id, client_secret=client_secret)

# Get the password 
session = requests.Session()
token = cred.get_token(scope)
response = session.post(listKeyUrl, headers={"Authorization": "Bearer {}".format(token.token)})
keys_dict = response.json()
password = keys_dict['primaryMasterKey']

# Connect to Azure Cosmos DB for Apache Gremlin.
client = client.Client(
    url=endpoint,
    traversal_source="g",
    username=username,
    password=password,
    message_serializer=serializer.GraphSONSerializersV2d0(),
)

安裝相依性。

go get github.com/Azure/azure-sdk-for-go/sdk/azidentity
go get github.com/go-gremlin/gremlin

import (
    "fmt"
    "os"
    "context"
    "log"
    "io/ioutil"
    "encoding/json"

    "github.com/go-gremlin/gremlin"
    "github.com/Azure/azure-sdk-for-go/sdk/azidentity"
)

func main() {
    username = os.Getenv("AZURE_COSMOS_USERNAME")
    endpoint = os.getenv("AZURE_COSMOS_RESOURCEENDPOINT")
    port = os.getenv("AZURE_COSMOS_PORT")
    listKeyUrl = os.Getenv("AZURE_COSMOS_LISTKEYURL")
    scope = os.Getenv("AZURE_COSMOS_SCOPE")

    // Uncomment the following lines corresponding to the authentication type you want to use.
    // For system-assigned identity.
    // cred, err := azidentity.NewDefaultAzureCredential(nil)

    // For user-assigned identity.
    // clientid := os.Getenv("AZURE_COSMOS_CLIENTID")
    // azidentity.ManagedIdentityCredentialOptions.ID := clientid
    // options := &azidentity.ManagedIdentityCredentialOptions{ID: clientid}
    // cred, err := azidentity.NewManagedIdentityCredential(options)

    // For service principal.
    // clientid := os.Getenv("AZURE_COSMOS_CLIENTID")
    // tenantid := os.Getenv("AZURE_COSMOS_TENANTID")
    // clientsecret := os.Getenv("AZURE_COSMOS_CLIENTSECRET")
    // cred, err := azidentity.NewClientSecretCredential(tenantid, clientid, clientsecret, &azidentity.ClientSecretCredentialOptions{})

    // Acquire the access token.
    ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
    token, err := cred.GetToken(ctx, policy.TokenRequestOptions{
        Scopes: []string{scope},
    })

    // Acquire the connection string.
    client := &http.Client{}
    req, err := http.NewRequest("POST", listKeyUrl, nil)
    req.Header.Add("Authorization", "Bearer " + token.Token)
    resp, err := client.Do(req)
    body, err := ioutil.ReadAll(resp.Body)
    var result map[string]interface{}
    json.Unmarshal(body, &result)
    password, err := result["primaryMasterKey"];

    auth := gremlin.OptAuthUserPass(username, password)
     client, err := gremlin.NewClient(endpoint, auth)
}

安裝相依性。

npm install gremlin
npm install --save @azure/identity

import { DefaultAzureCredential,ClientSecretCredential } from "@azure/identity";
import gremlin from 'gremlin'
const axios = require('axios');

let username = process.env.AZURE_COSMOS_USERNAME;
let endpoint = process.env.AZURE_COSMOS_RESOURCEENDPOINT;
let port = process.env.AZURE_COSMOS_PORT;
let listKeyUrl = process.env.AZURE_COSMOS_LISTKEYURL;
let scope = process.env.AZURE_COSMOS_SCOPE;

// Uncomment the following lines corresponding to the authentication type you want to use.  
// For system-assigned identity.
// const credential = new DefaultAzureCredential();

// For user-assigned identity.
// const clientId = process.env.AZURE_COSMOS_CLIENTID;
// const credential = new DefaultAzureCredential({
//     managedIdentityClientId: clientId
// });

// For service principal.
// const tenantId = process.env.AZURE_COSMOS_TENANTID;
// const clientId = process.env.AZURE_COSMOS_CLIENTID;
// const clientSecret = process.env.AZURE_COSMOS_CLIENTSECRET;

// Acquire the access token.
var accessToken = await credential.getToken(scope);

// Get the password.
const config = {
    method: 'post',
    url: listKeyUrl,
    headers: { 
      'Authorization': `Bearer ${accessToken.token}`
    }
};
const response = await axios(config);
const keysDict = response.data;
const password = keysDict['primaryMasterKey'];

const credentials = new gremlin.driver.auth.PlainTextSaslAuthenticator(
  username,
  password
)

const client = new gremlin.driver.Client(
  endpoint,
  {
    credentials,
    traversalsource: 'g',
    rejectUnauthorized: true,
    mimeType: 'application/vnd.gremlin-v2.0+json'
  }
)

client.open()

透過在 AZURE_COSMOS_LISTKEYURL 呼叫 REST API，取得具有受控識別或服務主體的存取權杖，以取得 Azure Cosmos DB for Gremlin 的主要金鑰。

$endpoint = getenv('AZURE_COSMOS_RESOURCEENDPOINT');
$username = getenv('AZURE_COSMOS_USERNAME');
$port = getenv('AZURE_COSMOS_PORT');

$db = new Connection([
    'host' => $endpoint,
    'username' => $username,
    'password' => $password,
    'port' => $port,
    'ssl' => TRUE
]);

Connection string

警告

Microsoft 建議您使用最安全的可用驗證流程。這個程序描述的驗證流程需要在應用程式中具備極高的信任度，且伴隨著其他流程並未面臨的風險。請僅在其他較安全的流程 (例如受控身分識別) 皆不具可行性的情況下，才使用這個流程。

預設環境變數名稱	描述	範例值
AZURE_COSMOS_HOSTNAME	您的 Gremlin 唯一資源識別碼 (UFI)	`<Azure-Cosmos-DB-account>.gremlin.cosmos.azure.com`
AZURE_COSMOS_PORT	連線連接埠	443
AZURE_COSMOS_USERNAME	您的使用者名稱	`/dbs/<database>/colls/<collection or graphs>`
AZURE_COSMOS_PASSWORD	您的密碼	`<password>`