Question

app.js

    import koa from 'koa';
    import http from 'http';
    import logger from 'koa-logger';
    import koaBody from 'koa-body';
    import dotenv from 'dotenv';
    import dotenvExpand from 'dotenv-expand';

    const config = dotenv.config();

    dotenvExpand(config);

    console.log(process.env); // Here I see all data which are in my .env file

    import { client } from '@pg'; // Inside this file I doesn't see this , but it still after initializing dotenv

@pg = db / connection / index.js

import { Client } from 'pg';

console.log(process.env.DATABASE_URL, 'fds'); // here I don't see the same ( all variables from .env file are undefined)

export const client = new Client({
  connectionString: process.env.DATABASE_URL
});

如果您需要其他信息，请告诉我。请注意我在代码段中的注释，这可能会有所帮助

Answer 1

您需要在每个要调用dotenv变量的文件中调用.env。

import dotenv from 'dotenv';
import { Client } from 'pg';

const config = dotenv.config();

console.log(process.env.DATABASE_URL, 'fds');

如果您想在所有应用程序文件中调用dotenv而不是每次都调用，那么在运行应用程序时需要使用它：

node -r dotenv/config app.js

Answer 2

如果您不想使用外部软件包，则可以像这样运行脚本：）我更喜欢这种方法。

@RunWith(AndroidJUnit4::class)
@LargeTest
class CameraTest: TestBuilder()
{
    @get:Rule
    var cameraActivityRule: ActivityTestRule<CameraActivity> = ActivityTestRule<CameraActivity>(CameraActivity::class.java, true, false)

    @get:Rule
    var permissionRule: GrantPermissionRule = GrantPermissionRule.grant(android.Manifest.permission.CAMERA, android.Manifest.permission.WRITE_EXTERNAL_STORAGE, android.Manifest.permission.READ_EXTERNAL_STORAGE)

    @Test
    fun cameraCaptureImageButtonIsInitiallySetWithCaptureImage() {
        this.cameraActivityRule.launchActivity(null)
        val imageButtonCapture: ImageButton = this.cameraActivityRule.activity.findViewById<ImageButton>(R.id.camera_image_btn_capture)
        Assert.assertEquals(imageButtonCapture.drawable, this.cameraActivityRule.activity.getDrawable(R.drawable.camera_capture))
    }
}

Answer 3

为了避免书写

dotenv.config()

在每个文件中，您只需在app.js

中添加这一行代码

dotenv.config({ path: path.resolve(__dirname, "path/to/.env") });

process.env在app.js外部不显示变量

3 个答案: