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From "Avik Ganguly (JIRA)" <>
Subject [jira] [Created] (FINERACT-426) Filter to optionally compress response with gzip
Date Tue, 18 Apr 2017 06:05:41 GMT
Avik Ganguly created FINERACT-426:

             Summary: Filter to optionally compress response with gzip
                 Key: FINERACT-426
             Project: Apache Fineract
          Issue Type: Bug
            Reporter: Avik Ganguly
            Assignee: Markus Geiss
            Priority: Minor

Accept a query parameter like isCompressionRequired. If this query param is present, compress
the response using gzip. This will ensure less bandwidth usage if field apps are using mobile

Sample Code for response filter :-

Inside filter method :-

if (request.getRequestHeaders().getFirst(HttpHeaders.ACCEPT_ENCODING).contains("gzip")) {
	                response.getHttpHeaders().add(HttpHeaders.CONTENT_ENCODING, "gzip");
	                        new Adapter(response.getContainerResponseWriter()));

  private static final class Adapter implements ContainerResponseWriter {
        private final ContainerResponseWriter crw;

        private GZIPOutputStream gos;

        Adapter(ContainerResponseWriter crw) {
            this.crw = crw;
        public OutputStream writeStatusAndHeaders(long contentLength, ContainerResponse response)
throws IOException {
           gos = new GZIPOutputStream(crw.writeStatusAndHeaders(-1, response));
           return gos;

        public void finish() throws IOException {


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