IPWorks IoT 2020 JavaScript Edition

Questions / Feedback?

RequestContentFormat Property

The request content format.


 getRequestContentFormat(): number;

 setRequestContentFormat(requestContentFormat: number): void;

Default Value



When the class is operating in client mode (i.e., the Listening property is disabled), this property specifies the content format that should be included in outgoing requests.

When the class is operating in server mode (i.e., the Listening property is enabled), this property is populated with the content format included in incoming requests (if any) anytime the Request event fires.

In either case, the valid set of values for this property is -1, or a value in the range 0 to 65535. -1 prevents a Content-Format option from being included when sending a request, or indicates that one was not included in a received response.

The following table provides a (non-exhaustive) list of some of the more common content formats; refer to the IANA's CoAP Content-Formats registry for a full list.

-1 (default) Content-Format option not included.
Value Media Type Encoding
0 text/plain; charset=utf-8
40 application/link-format
41 application/xml
42 application/octet-stream
47 application/exi
50 application/json
51 application/json-patch+json
52 application/merge-patch+json
60 application/cbor
61 application/cwt
62 application/multipart-core
63 application/cbor-seq
11050 application/json deflate
11060 application/cbor deflate

This property is not available at design time.

Copyright (c) 2022 /n software inc. - All rights reserved.
IPWorks IoT 2020 JavaScript Edition - Version 20.0 [Build 8265]