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[@salesforce/b2c-tooling-sdk](../../modules.md) / [config](../index.md) / readProjectEnvironment

# Function: readProjectEnvironment()

> **readProjectEnvironment**(`projectDirectory?`): `Record`\<`string`, `string` \| `undefined`\> \| `undefined`

Defined in: [packages/b2c-tooling-sdk/src/config/project-environment.ts:14](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/1cc5681b8c76554833dc7a40097f33641882a372/packages/b2c-tooling-sdk/src/config/project-environment.ts#L14)

Read all variables from a project's `.env` file without mutating `process.env`.

## Parameters

### projectDirectory?

`string`

## Returns

`Record`\<`string`, `string` \| `undefined`\> \| `undefined`