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Click the button below, which guides you through the process of registering a project in the Google API Console, and generates a generic, unrestricted API key. Choosing an authentication method for your application The section below provides a summary of the various tools and reports that are available to Premium Plan customers, based on the method you choose to authenticate your application. Get more information on reports available to Premium Plan customers. To determine whether you have a previous license: Usage Report on the left.
If the ID at the top of the report is in the following format, you have the new Premium Plan: To have full access to the features in their plan, Premium customers should use the project associated with their Premium account. When you purchased your license, you received the name of your Premium asset in the following format: You can locate the project owner in your welcome letter. Read more about the cryptographic key which you can use to generate a unique digital signature.
The code example below shows you the client and signature parameters to which you must pass your client ID and unique digital signature. Read about how you can generate a digital signature using your cryptographic key. Construct the request URL without the signature, making sure to include your client parameter. Note that any non-standard characters will need to be URL-encoded:. Strip off the domain portion of the request, leaving only the path and the query:.
You may need to decode this key into its original binary format. Note that in most cryptographic libraries, the resulting signature will be in binary format. Encode the resulting binary signature using the modified Base64 for URLs to convert this signature into something that can be passed within a URL.
The unique signature allows our servers to verify that any site generating requests using your client ID are authorized to do so. The signature is also unique per URL, ensuring that requests that use your client ID cannot be modified without requiring a new signature to be generated. As you convert your applications to use URL signing, make sure to test your signatures to ensure they initiate a valid request.
You should first test whether the original URL is valid as well as test whether you generate the correct signatures. The following sections show ways to implement URL signing using server-side code. URLs should always be signed server-side to avoid exposing your cryptographic key to users. The example below uses standard Python libraries to sign a URL. The example below uses the java. Base64 class available since JDK 1.
The example below uses native Node modules to sign a URL. The example below uses the default System. Cryptography library to sign a URL request. Note that we need to convert the default Base64 encoding to implement a URL-safe version. For testing purposes, you can test the following URL and private key to see if it generates the correct signature. Note that this private key is purely for testing purposes and will not be validated by any Google services. Examples that cover more languages are available in the url-signing project.
More about your private cryptographic key Your private cryptographic URL-signing key will be issued with your client ID and is a "secret shared key" between you and Google. This signing key is yours alone and is unique to your client ID. For that reason, please keep your signing key secure. This key should not be passed within any requests, stored on any websites, or posted to any public forum.
Anyone obtaining this signing key could spoof requests using your identity. If you've lost your private cryptographic key, log in to the Google Cloud Support Portal and click Maps: Manage Client ID to retrieve it. Once restricted, a key will only work on platforms that support that type of restriction. Before moving your app or website to production, you should secure your API key. Learn more about keys and credentials. It allows you to quickly validate a URL and signature generated by your application.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 3. For details, see our Site Policies. Last updated May 10, New pricing and product changes will go into effect starting June 11, For more information, check out the Guide for Existing Users. Quick guide to getting a key Step 1: When you are ready to move your app or website into production, register a separate project for production, create a server-restricted API key, and add the key to your application.
Alternatively, you can authenticate your application using use a client ID and digital signature instead of an API key. For more information, see the detailed guides below for Standard Plan and Premium Plan customers. If you are a Standard Plan customer, with an API key you have access to generous free daily quota , as well as the option to increase your daily quota by enabling pay-as-you-go billing.
Registering for an API key ensures that Google can contact you about your application if necessary. Create or select a project. Click Continue to enable the API.
On the Credentials page, get an API key. If you have an existing unrestricted API key, or a key with server restrictions, you may use that key. In the Key restriction section, select 'IP addresses web servers, cron jobs, etc. Read more about restricting API keys. See Usage Limits for more information. Access real-time usage data and 30 days of historical usage data for your application in the Google API Console.
View usage reports with more than 30 days of data in the Google Cloud Support Portal. Authentication using a client ID and digital signature By using your client ID and digital signature instead of an API key to authenticate your application, you can: Add the channel parameter to requests so you can view more detailed usage reports.
This signature will be binary. ReadLine ; if inputUrl. ReadLine ; if inputKey. Visit our support page.