How to post pictures via API?

Thought I’d go ahead and update as I’m getting a different error massage now:

	async uploadImages(imageReferences: string[]): Promise<string[]> {
		const imageUrls = [];
		for (const ref of imageReferences) {
			const filePath = this.app.metadataCache.getFirstLinkpathDest(ref, this.activeFile.name)?.path;
			if (filePath) {
				const file = this.app.vault.getAbstractFileByPath(filePath) as TFile;
				if (file) {
					try {
						const imgfile = await this.app.vault.readBinary(file);
						const boundary = genBoundary();
						const sBoundary = '--' + boundary + '\r\n';
						let body = '';
						body += `${sBoundary}Content-Disposition: form-data; name="type"\r\n\r\ncomposer\r\n`;
						body += `${sBoundary}Content-Disposition: form-data; name="synchronous"\r\n\r\ntrue\r\n`;
						body += `${sBoundary}Content-Disposition: form-data; name="files[]"; filename="${file.name}"\r\nContent-Type: image/jpg`;
						console.log(body);

						const eBoundary = '\r\n--' + boundary + '--\r\n';
						const bodyArray = new TextEncoder().encode(body);
						const endBoundaryArray = new TextEncoder().encode(eBoundary);

						const formDataArray = new Uint8Array(bodyArray.length + imgfile.byteLength + endBoundaryArray.length);
						formDataArray.set(bodyArray, 0);
						formDataArray.set(new Uint8Array(imgfile), bodyArray.length);
						formDataArray.set(endBoundaryArray, bodyArray.length + imgfile.byteLength);

						const url = `${this.settings.baseUrl}/uploads.json`;
						const headers = {
							"Api-Key": this.settings.apiKey,
							"Api-Username": this.settings.disUser,
							"Content-Type": `multipart/form-data; boundary=${boundary}`
						};

						const response = await requestUrl({
							url: url,
							method: "POST",
							body: formDataArray.buffer,
							throw: false,
							headers: headers,
						});

						console.log(`Upload Image response: ${response.status}`);
						if (response.status == 200) {
							const jsonResponse = response.json();
							console.log(`Upload Image jsonResponse: ${JSON.stringify(jsonResponse)}`);
							imageUrls.push(jsonResponse.url);
						} else {
							new NotifyUser(this.app, `Error uploading image: ${response.status}`).open();
							console.error(`Error uploading image: ${JSON.stringify(response.json)}`);
						}
					} catch (error) {
						new NotifyUser(this.app, `Exception while uploading image: ${error}`).open();
						console.error("Exception while uploading image:", error);
					}
				} else {
					new NotifyUser(this.app, `File not found in vault: ${ref}`).open();
					console.error(`File not found in vault: ${ref}`);
				}
			} else {
				new NotifyUser(this.app, `Unable to resolve file path for: ${ref}`).open();
				console.error(`Unable to resolve file path for: ${ref}`);
			}
		}
		return imageUrls;
	}

The error message I’m receiving now is:

Exception while uploading image: SyntaxError: Unexpected token ‘I’, “Invalid request” is not valid JSON

This is confusing to me because the API states that we need to send a multipart/form-data, but it’s saying invalid JSON? Maybe it’s related to requestAPI()