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[MOO-1862]: Signature base64 to image #396

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[MOO-1862]: Signature base64 to image #396

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4 changes: 4 additions & 0 deletions packages/jsActions/nanoflow-actions-native/CHANGELOG.md
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Expand Up @@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),

## [Unreleased]

### Fixed

- We've fixed a synchronization issue with Base64 images generated by the Signature widget.

## [5.1.6] Nanoflow Commons - 2025-12-05

### Fixed
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8 changes: 5 additions & 3 deletions packages/jsActions/nanoflow-actions-native/src/other/Base64DecodeToImage.ts
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Expand Up @@ -5,7 +5,6 @@
// - the code between BEGIN USER CODE and END USER CODE
// - the code between BEGIN EXTRA CODE and END EXTRA CODE
// Other code you write will be lost the next time you deploy the project.
import { Base64 } from "js-base64";

// BEGIN EXTRA CODE
// END EXTRA CODE
Expand All @@ -16,7 +15,7 @@ import { Base64 } from "js-base64";
* @param {MxObject} image
* @returns {Promise.<boolean>}
*/
export function Base64DecodeToImage(base64: string, image: mendix.lib.MxObject): Promise<boolean> {
export async function Base64DecodeToImage(base64: string, image: mendix.lib.MxObject): Promise<boolean> {
// BEGIN USER CODE

if (!base64) {
Expand All @@ -26,7 +25,10 @@ export function Base64DecodeToImage(base64: string, image: mendix.lib.MxObject):
throw new Error("image should not be null");
}

const blob = new Blob([Base64.toUint8Array(base64)], { type: "image/png" });
const dataUri = base64.startsWith("data:") ? base64 : `data:image/png;base64,${base64}`;

const res = await fetch(dataUri);
const blob = await res.blob();

return new Promise((resolve, reject) => {
mx.data.saveDocument(image.getGuid(), "camera image", {}, blob, () => resolve(true), reject);
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