$lowerPrice = new Google_Service_MyBusiness_Money;
    $lowerPrice->setCurrencyCode($currency);
    $lowerPrice->setUnits($lowPrice);

    $upperPrice = new Google_Service_MyBusiness_Money;
    $upperPrice->setCurrencyCode($currency);
    $upperPrice->setUnits($highPrice);

    // Prepares local product post
    $localPostProduct = new Google_Service_MyBusiness_LocalPostProduct;
    $localPostProduct->setLowerPrice($lowerPrice);
    $localPostProduct->setUpperPrice($upperPrice);
    $localPostProduct->setProductName($title);

    // Prepares local post
    $localPost = new Google_Service_MyBusiness_LocalPost;
    $localPost->setProduct($localPostProduct);
    $localPost->setSummary($summary);
    $localPost->setMedia($media);

    $localPosts = $this->myBusiness->accounts_locations_localPosts;
    return $localPosts->create($parent, $localPost);

new MyBusinessAccountManagement.Builder(transport,
            JSON_FACTORY,
            credential)
            .setApplicationName(APPLICATION_NAME)
            .build()

const myHeaders = new Headers();
myHeaders.append("Content-Type", "application/json");
myHeaders.append("Authorization", `Bearer ${accessToken}`);
const requestOptions = {
 method: 'POST',
 headers: myHeaders,
 redirect: 'follow'
};
fetch("https://mybusiness.googleapis.com/v4/accounts/*******/locations/******/media:startUpload", requestOptions)
 .then(res => res.json()) // here I got correct format response like this {  resourceName: '******'  }
 .then(res => {
     const myHeaders = new Headers();
     myHeaders.append("Authorization", `Bearer ${accessToken}`);
     myHeaders.append("Content-Type", "image/jpeg");
     const file = "<file contents accessed by input element event listener.>";
     const requestOptions = {
         method: 'POST',
         headers: myHeaders,
         body: file,
         redirect: 'follow'
     };
     return fetch(`https://mybusiness.googleapis.com/upload/v1/media/${res.resourceName}?upload_type=media`, 
       requestOptions)
      .then(result => {
        console.log(result)  // got nothing but empty string, status code is 200.
        return res;
      }) 
 })
 .then(res => {
       const myHeaders = new Headers();
       myHeaders.append("Content-Type", "application/json");
       const raw = JSON.stringify({"mediaFormat":"PHOTO","locationAssociation":{"category":"ADDITIONAL"},"dataRef":{"resourceName":`${res.resourceName}`}});
      myHeaders.append("Content-Type", "application/json");
      const requestOptions = {
         method: 'POST',
         headers: myHeaders,
         body: raw,
         redirect: 'follow'
      };
       fetch("https://mybusiness.googleapis.com/v4/accounts/****/locations/****/media", requestOptions)
         .then(response => response.json())
         .then(result => console.log(result))
         .catch(error => console.log('error', error));
 })

{
    "error": {
        "code": 400,
        "message": "Request contains an invalid argument.",
        "status": "INVALID_ARGUMENT",
        "details": [
            {
                "@type": "type.googleapis.com/google.mybusiness.v4.ValidationError",
                "errorDetails": [
                    {
                        "code": 1000,
                        "message": "Fetching image failed."
                    }
                ]
            }
        ]
    }
}