Primeng Lazy load

load.ts

  load(event: TableLazyLoadEvent | undefined) {
    let url = 'search=';
    if (this.search.email) {
      url = url + ',email~' + (this.search.email || '');
    }
    if (this.search.firstPhone) {
      url = url + ',firstPhone~' + (this.search.firstPhone || '');
    }
    if (this.search.lastName) {
      url = url + ',lastName~' + (this.search.lastName || '');
    }
    if (this.search.firstName) {
      url = url + ',firstName~' + (this.search.firstName || '');
    }
    if (this.search.badge) {
      url = url + ',badge~' + (this.search.badge || '');
    }
    if (this.search.state) {
      url = url + ',state.nameAr~' + (this.search.state.nameAr || '');
    }
    if (this.search.job) {
      url = url + ',job.nameAr~' + (this.search.job.nameAr || '');
    }
    url = url + '&page=' + ((event?.first ?? 0) / (event?.rows ?? 1)) +
      '&size=' + (event?.rows || this.size) +
      '&sortBy=' + (event?.sortField || 'id') + '&sortDir=' + ((event?.sortOrder!) > 0 ? 'asc' : 'desc');

    this.loading = true;
    this.adherentService.findAll(url).subscribe((res) => {
      if (res.code === '201') {
        this.adherents = res.data.content;
        this.totalRecords = res.data.totalElements;
        this.loading = false;
      } else {
      }
    });
  }

search.java

@Override
    public ResponseEntity<ResultResponse> search(@RequestParam(value = "search", required = false) String search,
                                                 @RequestParam(value = "page", required = false) String page,
                                                 @RequestParam(value = "size", required = false) String size,
                                                 @RequestParam(value = "sortBy", required = false) String sortBy,
                                                 @RequestParam(value = "sortDir", required = false) String sortDir) {      
        return super.search(search, page, size, sortBy, sortDir);
    }