Substitution format string

    Configuration to use multiple command operators to generate a new string in either plain text or JSON format.

    text_format

    () Specify a format with command operators to form a text string. Its details is described in format string.

    For example, setting like below,

    1. text_format: "%LOCAL_REPLY_BODY%:%RESPONSE_CODE%:path=%REQ(:path)%\n"

    generates plain text similar to:

    Deprecated in favor of . To migrate text format strings, use the inline_string field.

    Precisely one of , json_format, must be set.

    json_format

    1. json_format:

    The following JSON object would be created:

    Precisely one of text_format, , text_format_source must be set.

    text_format_source

    () Specify a format with command operators to form a text string. Its details is described in format string.

    For example, setting text_format like below,

    1. text_format_source:
    2.   inline_string: "%LOCAL_REPLY_BODY%:%RESPONSE_CODE%:path=%REQ(:path)%\n"

    generates plain text similar to:

    Precisely one of , json_format, must be set.

    omit_empty_values

    • for json_format the keys with null values are omitted in the output structure.

    content_type

    (string) Specify a content_type field. If this field is not set then text/plain is used for text_format and is used for json_format.

    1. content_type: "text/html; charset=UTF-8"

    formatters

    (repeated ) Specifies a collection of Formatter plugins that can be called from the access log configuration. See the formatters extensions documentation for details.

    Tip

    This extension category has the following known extensions: