Leveraging environment variables in template documents

Question

Leveraging environment variables in template documents

Can you incorporate environment variables into template files successfully?

Currently, I am experimenting with the following syntax:

<img class="preview-image" src="{{environment.assets + item.image}}" />

However, this approach leads to the following error:

Error: Identifier 'environment' is not defined. The component declaration, template variable declarations, and element references do not include such a member.

Even after attempting to import it in my component.ts file using

import { environment } from './../../../../environments/environment';

, the issue still persists.

angular typescript

Answer 1

Answer №1

To make a public environment variable accessible in the template, simply define it in the controller with the desired value:

import { environment } from '../environments/environment';

export class AppComponent {

  environment = environment;

}

Answer 2

To make a public environment variable accessible in the template, simply define it in the controller with the desired value:

import { environment } from '../environments/environment';

export class AppComponent {

  environment = environment;

}

Answer 3

Answer №2

When I wanted to achieve the same goal, I devised a pipe solution that can be implemented in any template without the need to modify its .ts file:

import {Pipe, PipeTransform} from '@angular/core';
import {environment} from '../../environments/environment';

@Pipe({name: 'env'})
export class EnvPipe implements PipeTransform {
  transform(variable: keyof typeof environment): any {
    return environment[variable];
  }
}

To use this in your HTML, simply do the following:

<span>{{'variableName' | env}}</span>

For your specific scenario:

<img class="preview-image" src="{{'assets' | env}}{{item.image}}" />

Ensure to include the pipe component in your app.module.ts

Answer 4

When I wanted to achieve the same goal, I devised a pipe solution that can be implemented in any template without the need to modify its .ts file:

import {Pipe, PipeTransform} from '@angular/core';
import {environment} from '../../environments/environment';

@Pipe({name: 'env'})
export class EnvPipe implements PipeTransform {
  transform(variable: keyof typeof environment): any {
    return environment[variable];
  }
}

To use this in your HTML, simply do the following:

<span>{{'variableName' | env}}</span>

For your specific scenario:

<img class="preview-image" src="{{'assets' | env}}{{item.image}}" />

Ensure to include the pipe component in your app.module.ts

Leveraging environment variables in template documents

Answer №1

Answer №2

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