Method headers

core/src/main/java/feign/RequestTemplate.java:852–859

Headers for this Request. @param headers to use. @return a RequestTemplate for chaining.

(Map<String, Collection<String>> headers)

   * @return a RequestTemplate for chaining.
   */
  public RequestTemplate headers(Map<String, Collection<String>> headers) {
    if (headers != null && !headers.isEmpty()) {
      headers.forEach(this::header);
    } else {
      this.headers.clear();
    }
    return this;
  }

  /**
   * Returns an copy of the Headers for this request.