DICOM PS3.18 2021c - Web Services

5.3 Request and Response Header Field Tables (Current)
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## 5.3 Request and Response Header Field Tables

Request header field requirements are described using tables of the following form:

Table 5.2-1. Request Header Fields

Name | Value | Usage | Description
--- | --- | --- | ---
User Agent | Origin Server
... |  |  |  |
... |  |  |  |

The Name column contains the name of the HTTP header field as defined in [RFC7230, RFC7231].

The Value column defines either the value type or the specific value contained in the header field.

The Usage User Agent column defines requirements for the user agent to supply the header field in the request.

The Usage Origin Server column defines requirements for the origin server to support the header field.

The content of the Usage columns is either:

M

  Mandatory

C

  Conditional

O

  Optional

The Description column of conditional request header fields specifies the condition for the presence of the header field.

- "Shall be present if <condition>" means that if the <condition> is true, then the header field shall be present; otherwise, it shall not be present.

- "May be present otherwise" is added to the description if the header field may be present, even if the condition is not true.

Response header field requirements are described using tables of the following form:

Table 5.2-2. Response Header Fields

Name | Value | Origin Server Usage | Description
--- | --- | --- | ---
... |  |  |
... |  |  |

For response header fields the Usage column defines requirements for the origin server to supply the header field.

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DICOM PS3.18 2021c - Web Services