Spring-Boot web 应用程序 firebase 身份验证不是有效的 API

Question

[在此处输入图像描述][1]我正在尝试对我的小型 spring 启动 web 应用程序使用 firebase 身份验证。 当我尝试访问应用程序时，我得到了

{"error":{"code":400,"message":"API 密钥无效。请传递一个有效的 API 密钥。","errors":[{"message":"API 密钥无效。请传递一个有效的 API 密钥。","domain":"global","reason":"badRequest"}],"status":"INVALID_ARGUMENT"}}

Used maven  configuration

<!-- https://mvnrepository.com/artifact/com.google.firebase/firebase-server-sdk -->
        <dependency>
            <groupId>com.google.firebase</groupId>
            <artifactId>firebase-server-sdk</artifactId>
            <version>3.0.3</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.google.firebase/firebase-admin -->
        <dependency>
            <groupId>com.google.firebase</groupId>
            <artifactId>firebase-admin</artifactId>
            <version>8.1.0</version>
        </dependency>


[enter image description here][1]
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  [1]: https://i.stack.imgur.com/rpD7I.png
  [2]: https://i.stack.imgur.com/ZL10m.png
  [3]: https://i.stack.imgur.com/ERn9g.png