[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間：2025-08-21 (世界標準時間)。"],[[["\u003cp\u003eThis guide demonstrates how to secure APIs in Apigee and Apigee hybrid using API keys to prevent unauthorized access.\u003c/p\u003e\n"],["\u003cp\u003eThe tutorial walks through the process of creating an API proxy, configuring it to require API keys, and setting up policies to verify and remove the API key.\u003c/p\u003e\n"],["\u003cp\u003eIt explains how to create API products, developers, and developer apps, which are needed to generate API keys for accessing the protected API proxy.\u003c/p\u003e\n"],["\u003cp\u003eThe document illustrates how to test the API proxy by making calls with and without a valid API key, showcasing the security enforcement.\u003c/p\u003e\n"],["\u003cp\u003eIt highlights the best practice of passing API keys in the HTTP header (x-apikey) instead of as a query parameter for enhanced security, and details the required modifications to the API proxy.\u003c/p\u003e\n"]]],[],null,["# Secure an API by requiring API keys\n\n*This page\napplies to **Apigee** and **Apigee hybrid**.*\n\n\n*View [Apigee Edge](https://docs.apigee.com/api-platform/get-started/what-apigee-edge) documentation.*\n\n| **Note:** This video was recorded with a previous version of the Apigee UI; however, the concepts are still valid.\n\n\n**Video:** Check out this short video for an introduction on securing your API. \n**What you'll learn**\n\nThis tutorial explains how to:\n\n- Create an API proxy that requires an API key.\n- Create an API product, a developer, and a developer app.\n- Call your API with an API key. \nIt's important to protect your API from unauthorized access. One way to do that is with\nAPI keys.\n\nWhen an app makes a request to an API proxy that is configured to verify an API\nkey, the app must supply a valid key. At runtime, the\nVerify API Key policy checks that the supplied API key:\n\n- Is valid\n- Hasn't been revoked\n- Matches the API key for the API product that exposes the requested resources\n\nIf the key is valid, the request is allowed. If the key is invalid, the request results in\nan authorization failure. \n\nCreate the API proxy\n--------------------\n\n1. Go to the [Apigee UI](https://apigee.google.com) and sign in.\n2. Select your organization using the drop-down menu in the upper left corner of the UI.\n3. Click **Develop \\\u003e API Proxies** to display the API\n proxies list.\n\n4. Click **Create New** . \n5. In the Build a Proxy wizard, select **Reverse proxy (most common)**.\n6. Configure the proxy as follows: \n\n7. Click **Next**.\n8. On the **Common policies** page, select **API Key**. This option automatically adds two policies to your API proxy and creates an API product needed for generating the API key.\n9. Click **Next**.\n10. On the Summary page, make sure a deployment environment is selected, and click **Create and deploy**.\n11. Click **Edit proxy** to display the Overview page for the API proxy. \n\nView the policies\n-----------------\n\n1. In the API proxy editor, click the **Develop** tab. You'll see that two policies have been added to the request flow of the API proxy:\n - **Verify API Key** -- Checks the API call to make sure a valid API key is present (sent as a query parameter).\n - **Remove Query Param apikey** -- An Assign Message policy that removes the API key after it's checked, so that it doesn't get passed around and exposed unnecessarily.\n2. Click the Verify API Key policy icon in the flow view, and look at the policy's XML\n configuration in the lower code view. The `\u003cAPIKey\u003e` element tells the\n policy where it should look for the API key when the call is made. By default, it looks\n for the key as a query parameter called `apikey` in the HTTP request:\n\n ```text\n \u003cAPIKey ref=\"request.queryparam.apikey\" /\u003e\n ```\n\n The name `apikey` is arbitrary and can be any property that contains the\nAPI key. \n\nTry to call the API\n-------------------\n\nIn this step, you'll make a successful API call directly to the target service, then\nyou'll make an unsuccessful call to the API proxy to see how it's being protected by the\npolicies.\n\n1. **Success**\n\n In a web browser, go to the following address. This is the target service that the API\n proxy is configured to forward the request to, but you'll hit it directly for now: \n\n ```text\n http://mocktarget.apigee.net\n ```\n\n You should get this successful response: `Hello, Guest!`\n2. **Failure**\n\n Now try to call your API proxy: \n\n ```\n curl -v -k https://YOUR_ENV_GROUP_HOSTNAME/helloapikey\n ```\n\n where \u003cvar translate=\"no\"\u003eYOUR ENV_GROUP_HOSTNAME\u003c/var\u003e is the environment group hostname. See\n [Find the environment group hostname](/apigee/docs/api-platform/get-started/test-proxy#find-the-environment-group-hostname).\n | **Note:** If you have trouble calling the proxy, you may need to add the `Host` header, as described in [Deploy a sample proxy](/apigee/docs/api-platform/get-started/deploy-sample).\n\n Without the Verify API Key policy, this call would give you the same response as the\n previous call. But in this case, you should get the following error response: \n\n ```gdscript\n {\"fault\":{\"faultstring\":\"Failed to resolve API Key variable request.queryparam.apikey\",\"detail\":{\"errorcode\":\"steps.oauth.v2.FailedToResolveAPIKey\"}}}\n ```\n\n which means, correctly, that you didn't pass a valid API key (as a query\n parameter).\n\nIn the next steps, you'll get the required API key. \n\nAdding an API product\n---------------------\n\nTo add an API product using the Apigee UI:\n\n1. Select **Publish \\\u003e API Products**.\n2. Click **+Create**.\n3. Enter the Product Details for your API product. \n\n4. In the **Operations** section, click **ADD AN OPERATION**.\n5. In the API Proxy field, select the API proxy you just created.\n6. In the Path field, enter \"/\". Ignore the other fields.\n7. Click **Save** to save the Operation.\n8. Click **Save** to save the API product. \n\nAdd a developer and app to your\norganization\n--------------------------------------------\n\nNext, we're going to simulate the workflow of a developer signing up to use your APIs. A\ndeveloper will have one or more apps that call your APIs, and each app gets a unique API key.\nThis gives you, the API provider, more granular control over access to your APIs and more\ngranular reporting on API traffic by app.\n\n### Create a developer\n\nTo create a developer:\n\n1. Select **Publish \\\u003e Developers** in the menu. \n **Note** : If you are still in the Develop screen, click on the **\"\\\u003c\"** by **DEVELOP** to display the menu and select **Publish \\\u003e Developers**\n2. Click **+ Developer**.\n3. Enter the following in the New Developer window: \n\n4. Click **Create**.\n\n### Register an app\n\nTo register a developer app:\n\n1. Select **Publish \\\u003e Apps**.\n2. Click **+ App**.\n3. Enter the following in the New Developer App window: \n\n4. In the Credentials section, select **Never**. The credentials for this app will never expire.\n5. Click **Add product**.\n6. Select the product you just created.\n7. Click **Create**.\n\n### Get the API key\n\nTo get the API key:\n\n1. On the Apps page (Publish \\\u003e Apps), click **keyser_app**.\n2. On the **keyser_app** page, click **Show** next to **Key** in the **Credentials** section. Notice that the key is associated with the product you created. \n3. Select and copy the key. You'll use it in the next step. \n\nCall the API with a key\n-----------------------\n\nNow that you have an API key, you can use it to call the API proxy. Paste the API key as\nshown, as a query parameter. Make sure there are no extra\nspaces in the query parameter. \n\n```\ncurl -v -k https://YOUR_ENV_GROUP_HOSTNAME/helloapikey?apikey=your_api_key\n```\n\nNow when you call the API proxy, you should get this response: `Hello,\nGuest!`\n\nCongratulations! You've created an API proxy and protected it by requiring that a valid\nAPI key be included in the call.\n\nNote that in general it's not good practice to pass an API key as a query parameter. You\nshould consider [passing it in the HTTP\nheader instead](#extracreditpassingthekeyinthehttpheader). \n\nBest practice: Passing the key in the HTTP\nheader\n-------------------------------------------------\n\n| **Note:** It's a good practice to pass the API key in a header rather than in a query parameter. Query parameters appear in the browser history and network logs, which could present a security risk. Headers do not appear in the browser history and network logs.\n\nIn this step, you will modify the proxy to look for the API key in a header called `x-apikey`.\n\n1. Edit the API proxy. Select **Develop \\\u003e API Proxies \\\u003e\n helloworld_apikey** , and go to the **Develop** view.\n2. Select the **Verify API Key** policy, and modify the policy XML to tell\n the policy to look in the `header` rather than in the\n `queryparam`:\n\n ```text\n \u003cAPIKey ref=\"request.header.x-apikey\"/\u003e\n ```\n3. **Save** the API proxy and use **Deploy** to deploy it.\n4. Make the following API call using cURL to pass the API key as a header called\n `x-apikey`. Don't forget to substitute your organization name.\n\n ```scdoc\n curl -v -H \"x-apikey: {api_key_goes_here}\" http://YOUR_ENV_GROUP_HOSTNAME/helloapikey\n ```\n\nNote that to fully complete the change, you'd also need to configure the Assign Message\npolicy to remove the header instead of the query parameter. For example: \n\n```\n\u003cRemove\u003e\n \u003cHeaders\u003e\n \u003cHeader name=\"x-apikey\"/\u003e\n \u003c/Headers\u003e\n\u003c/Remove\u003e\n```\n| **Note:** You could also pass the API key as a form parameter. If you did, the Verify API Key policy would be configured like this: \n|\n| ```scdoc\n| \u003cAPIKey ref=\"request.formparam.{api_key_goes_here}\"/\u003e\n``` \n\nRelated topics\n--------------\n\nHere are some topics related to API products and keys:\n\n- [Managing API products](/apigee/docs/api-platform/publish/create-api-products)\n- [API keys](/apigee/docs/api-platform/security/api-keys)\n- [Registering app\n developers](/apigee/docs/api-platform/publish/adding-developers-your-api-product)\n- [Register apps and\n manage API keys](/apigee/docs/api-platform/publish/creating-apps-surface-your-api)\n- [Verify API Key\n policy](/apigee/docs/api-platform/reference/policies/verify-api-key-policy)\n\nAPI protection often involves additional security such as [OAuth](/apigee/docs/api-platform/security/oauth/oauth-home), an\nopen protocol that exchanges credentials (like username and password) for\naccess tokens. Access tokens are long, random strings that can be passed through a message\npipeline, including from app to app, without compromising the original credentials.\n\nFor an overview of security-related topics, see\n[Securing a proxy](https://cloud.google.com/apigee/docs/api-platform/security/api-security)."]]
