code: public OmdbBuilder setApiKey(final String apiKey) throws OMDBException {
          if (StringUtils.isBlank(apiKey)) {
              throw new OMDBException(ApiExceptionType.AUTH_FAILURE, "Must provide an ApiKey");
          }
          params.add(Param.APIKEY, apiKey);
          return this;
      }
docs: Set the ApiKey
  
  @param apiKey The apikey needed for the contract
  @return
  @throws com.omertron.omdbapi.OMDBException