def suppliers_on_framework(data_api_url, data_api_token, questions):
    """
    Generate the CSV
    - takes the data api details
    - iterates through all suppliers
    - foreach supplier hits the declaration API to recover the answers
    - builds CSV row for each supplier
    :param data_api_url:
    :param data_api_token:
    :param questions:
    :return:
    """
    client = DataAPIClient(data_api_url, data_api_token)

    writer = csv.writer(sys.stdout, delimiter=',', quotechar='"')
    writer.writerow(headers(questions))

    for supplier in client.find_suppliers_iter():
        try:
            declaration = client.get_supplier_declaration(supplier['id'], 'g-cloud-7')['declaration']
            if not declaration:
                continue
            status = declaration['status']
            processed_supplier_declaration = \
                process_supplier_declaration(
                    declaration,
                    questions
                )

            supplier_declaration = list()
            supplier_declaration.append(supplier['id'])
            supplier_declaration.append(supplier['name'])
            supplier_declaration.append(supplier.get('dunsNumber', ""))
            supplier_declaration.append(status)
            for declaration in processed_supplier_declaration:
                supplier_declaration.append(declaration)

            try:
                writer.writerow(supplier_declaration)
            except UnicodeEncodeError:
                writer.writerow(
                    [field.encode('utf-8') if hasattr(field, 'encode') else field for field in supplier_declaration]
                )

        except HTTPError as e:
            if e.status_code == 404:
                # not all suppliers make a declaration so this is fine
                # status = 'unstarted'
                pass
            else:
                # status = 'error-{}'.format(e.status_code)
                raise e
        except KeyError:
            # status = 'error-key-error'
            pass