# FORM DATA KEY

### Property description

Sending a file through FormData API under a specific string key is possible to set up if the situation requires it.

<div align="left"><img src="https://lh5.googleusercontent.com/ALsJqhGgBiL0EEqn5CfXRj41RSbuydRnIsxtVoqZq50CimKk9YSOyQpjMA89_zNMyed-TI53KsZDfGVq0FW0gn6pBa8aVKQEpgl-VgQwd36K2AAHwoAk2YjHsI6l77m42bqAb3vr" alt="Constant string setting"></div>

<div align="left"><img src="https://lh6.googleusercontent.com/6xq58SlN4oNYiXP01HK4_-jU8kzOlyZft19h1KfVLKOYGYgiYp-26ydk1zjr-ZNfH9CQhZc_Wk8lt7VvUMyo0lr0Qx_WnSFqJUT9XNXdkHme0s2la9gK-MTIaSMyxuZ8eepg15-X" alt="ƒx (String): Setting up String FormData key value"></div>

### State

Setting specific string key.

### Value types

<https://developer.mozilla.org/en-US/docs/Web/API/FormData>

### Availability

[File Upload](/reference-guide/components-list/file-upload.md)


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