moublini•10mo ago

Unable to load env variables in local

I'm starting again with deno since a long time with a small telegram bot using the grammy framework, and since i need an API key i have to store it in environment variables. Those .env files are stored inside the src/environment folder, and when i call the function loadSync from the dotenv library in deno.land/std with export=true and the correct environment file paths it does not load them. In fact I've also tried seeing if the object that loadSync would return contained any of my variables and it's completely empty. I'm really confused as a long time ago i never had a slight problem using the dotenv library. I've also put the --allow-all flag before running the process and it just doesn't read them. Just to be more explicit this is the command I'm running: deno run --allow-all --watch src/index.ts where index.ts is the entry point of the application.

3 Replies

moublini•10mo ago

I've also tried using the load.ts file from the dotenv std library and nothing changed.

Deno AI Helper•10mo ago

I'm sorry to hear that you're having trouble with loading environment variables in Deno. Based on the documentation, there are a few things we can check to troubleshoot this issue. Firstly, ensure that you're using the correct path to your .env file when calling the loadSync function. The path should be relative to the current working directory. If your .env file is located in the src/environment directory, you should be able to load it with something like this:

import { loadSync } from "https://deno.land/std/dotenv/mod.ts";

const env = loadSync("./src/environment/.env");

import { loadSync } from "https://deno.land/std/dotenv/mod.ts";

const env = loadSync("./src/environment/.env");

Secondly, make sure that your .env file is formatted correctly. Each line should be a key-value pair in the format KEY=VALUE. For example:

API_KEY=yourapikey
OTHER_VARIABLE=somevalue

API_KEY=yourapikey
OTHER_VARIABLE=somevalue

Lastly, ensure that you're running your Deno script with the --allow-env flag. This flag is required to grant Deno permission to access environment variables. Since you're using the --allow-all flag, this should already be covered, but it's worth double-checking. If you're still having trouble after checking these things, it might be helpful to add some debugging output to your script to help identify the issue. For example, you could log the entire env object after calling loadSync to see if it contains the expected values:

console.log(env);

console.log(env);

If the env object is empty, this suggests that loadSync is not able to read your .env file. In this case, you might want to check the file's permissions to ensure that Deno is able to read it. I hope this helps! Let me know if you have any other questions. 🦕

moublini•10mo ago

The issue was that i didn't know that the path was relative to the CWD. Now that I've actually tried changing it to what has been suggested it works. I'm almost embarassed by this.