Table 41, Http reader request parameters – Vaisala Hydromet Data Collection Platform User Manual

Page 253

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Chapter 5 __________________________________________ Configuring TCP/IP-Based Telemetry

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New requests to the HTTP Reader are added by adding Configuration
Items using the Add button. For each request, the following parameters
are available.

Table 41

HTTP Reader Request Parameters

Parameter

Use

Note

Name

Unique name for the request.

Requested URI

HTTP URI to read, for
example, URI of the latest
camera image.

Alternatively, dynamic
request URI may be
used; see below.

Request URI
source

Source for dynamic or station-
specific URI, for example,
report or static parameter.

Variable

Variable in the above source
containing the URI, rep when
used with report.

Content type

Expected content type; see
http://www.iana.org/
assignments/media-types.
HTTP Reader will reject return
content with different type.

Leave empty if ignored
or unknown.

Maximum result
size

Maximum size of the returned
content, for example,
maximum size of a photo
[bytes].

Take into consideration
limited resources in the
logger.

Destination URI

File URI for storing the
returned content, for example,
file://<path. Example URI:
file:///Ext/images/current.jpg.
Remember to respect 8.3 file
naming rules in the logger.

Alternatively dynamic
destination URI may be
used; see below.

Destination URI
source

Source for dynamic or station-
specific URI, for example,
report or static parameter.

Variable

Variable in the above source
containing the URI, rep when
used with report.

Additional header
content

Source for additional HTTP
header fields, that is, others
than those inserted by HTTP
client by default.

Extra content is
appended to the HTTP
header, and needs to be
terminated by
<CR><LF><CR><LF>.

Variable

Variable in source containing
the additional HTTP header
fields.

Requesting
component

Component where information
about the result will be sent to.

Vaisala internal use.

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