Question 97297 in Nginx Question posted in
The official documentation can be found here.

How to load env in vite svelte for production – Nginx

So I’m new to Vite and I use it for my svelte app
I really don’t understand this part of documentation

During production, these env variables are statically replaced. It is therefore necessary to always reference them using the full static string. For example, dynamic key access like import.meta.env[key] will not work.

I should mention that english is not my first language, and when I try the app on production it showed the env as the baseurl/undefined,
How am I supposed to get the env on production/after the application is build ?
I am currently using

import.meta.env.VITE_API_URL

to access the env in development,
This is my .env

VITE_BASE_URL="secret"
VITE_API_URL="secret/api"

I am using cloud run for my production and set the env in the cloud run dashboard. I also use this dockerfile for the production.

FROM node:16-alpine as build

WORKDIR /app

# copy files and install dependencies
COPY package.json .
COPY package-lock.json .
RUN npm install
COPY . .
RUN npm run run-build
COPY .env.production /app/dist/.env

FROM nginx:1.19
COPY ./nginx/nginx.conf /etc/nginx/nginx.conf
COPY --from=build /app/dist /usr/share/nginx/html
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2

Answers


  1. 0

    vite means that it won’t be able to understand if you dynamically access env

    your syntax is valid and it should work

    this is invalid syntax:

    const key = "VITE_API_URL"
import.meta.env[key]

    and you don’t need to do anything with the file .env.production both it will be used in production mode automatically

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  2. 0

    The issue

    The replacement happens in the step

    RUN npm run run-build

    Running this step after the build

    COPY .env.production /app/dist/.env

    does nothing, this .env file is ignored.

    A solution

    Add a step before the build step to configure environment variables.

    COPY .env.production .env
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