I’m trying to upload a pdf file to GCS REST API with Coldfusion. My code is as follows. I get the same error every time. When I try a png file instead of a pdf, it works fine.

<cffunction name="uploadFileToCloudStorage" access="remote" returnformat="JSON" returntype="any">
    <cfargument name="bucket_name" default="" />
    <cfargument name="object_name" default="" />
    <cfargument name="object_location" default=""/>
    <cfargument name="object_content_type" default="application/pdf" />
    <cfargument name="access_token" required="true" />
        
    <cffile action="readBinary" file="#arguments.object_location#" variable="fileContent">
        
    <cfset endpoint = "https://storage.googleapis.com/upload/storage/v1/b/#arguments.bucket_name#/o?name=#arguments.object_name#&uploadType=media" />

    <cfhttp result="result" method="POST" charset="utf-8" url="#endpoint#" timeout="60">
        <cfhttpparam type="header" name="Content-Type" value="#arguments.object_content_type#" />
        <cfhttpparam type="header" name="Authorization" value="Bearer #arguments.access_token#" />
        <cfhttpparam type="body" value="#fileContent#" />
    </cfhttp>
    <cfreturn replace(serializeJSON(result), '//', '') />
</cffunction>

The result is:

{"Mimetype":"Unable to determine MIME type of file.","Errordetail":"I/O Exception: Received fatal alert: record_overflow","Filecontent":"Connection Failure","Statuscode":"Connection Failure.  Status code unavailable.","Responseheader":{},"Text":true,"Charset":"","Header":""}

for the first time. If i try again, the result is:

{"Mimetype":"Unable to determine MIME type of file.","Errordetail":"I/O Exception: Connection reset","Filecontent":"Connection Failure","Statuscode":"Connection Failure.  Status code unavailable.","Responseheader":{},"Text":true,"Charset":"","Header":""}

I tried base64 and the result is the same. I tried read instead of readBinary with cffile and the result is still the same.