feat(static-storage): test API for S3 put

Signed-off-by: Berend Sliedrecht <berend@animo.id>

apps/shared/src/index.ts

@@ -20,3 +20,5 @@ export * from './dto/multitenancy-params.dto.js';
 export * from './modules/health/health.module.js';
 
 export * from './interceptors/response-format.interceptor.js';
+
+export * from './staticStorage.js';

apps/shared/src/staticStorage.ts

+import axios, { AxiosHeaders } from 'axios';
+
+export type UploadToS3Options = {
+  s3Url: string;
+  bucketName: string;
+  fileId: string;
+  content: Uint8Array;
+  accessKey: string;
+  secret: string;
+};
+
+const generateRfc1123Date = () =>
+  new Date()
+    .toLocaleString('en-GB', {
+      timeZone: 'UTC',
+      hour12: false,
+      weekday: 'short',
+      year: 'numeric',
+      month: 'short',
+      day: '2-digit',
+      hour: '2-digit',
+      minute: '2-digit',
+      second: '2-digit',
+    })
+    .replace(/(?:(\d),)/, '$1') + ' GMT';
+
+// Upload to S3 and return the URL to fetch it from
+export const uploadToS3 = async ({
+  s3Url,
+  content,
+  fileId,
+  bucketName,
+  accessKey,
+  secret,
+}: UploadToS3Options) => {
+  // TODO: double check all headers
+  const headers = new AxiosHeaders()
+    .set('Host', s3Url)
+    .set('Date', generateRfc1123Date())
+    .set('Content-Type', 'application/octet-stream')
+    .set('Authorization', accessKey)
+    .set('Secret', secret);
+
+  const sanitizedUrl = s3Url.endsWith('/')
+    ? s3Url.slice(0, s3Url.length - 1)
+    : s3Url;
+
+  const url = `${sanitizedUrl}/${bucketName}/${fileId}`;
+
+  // TODO: check whether we need to include the sig or not
+  const result = await axios.put(url, content, {
+    headers,
+  });
+
+  if (result.status > 299) {
+    throw new Error(`Error uploading to S3. Error: ${JSON.stringify(result)}`);
+  }
+
+  return url;
+};