14.9. taler-exchange-httpd(1)

14.9.1. Name

taler-exchange-httpd - run Taler exchange (with RESTful API)

14.9.2. Synopsis

taler-exchange-httpd [-C | –connection-close] [-c FILENAME | –config=FILENAME] [-f FILENAME | –file-input=FILENAME] [-h | –help] [-i | –init-db] [-L LOGLEVEL | –loglevel=LOGLEVEL] [-t SECONDS | –timeout=SECONDS] [-v | –version]

14.9.3. Description

taler-exchange-httpd is a command line tool to run the Taler exchange (HTTP server). The required configuration, keys and database must exist before running this command.

Its options are as follows:

-C | –connection-close
Force each HTTP connection to be closed after each request (useful in combination with -f to avoid having to wait for nc to time out).
-c FILENAME | –config=FILENAME
Use the configuration and other resources for the merchant to operate from FILENAME.
-h | –help
Print short help on options.
-i | –init-db
Initialize the database by creating tables and indices if necessary.
-v | –version
Print version information.
-f FILENAME | –file-input=FILENAME

This option is only available if the exchange was compiled with the configure option –enable-developer-mode. It is used for generating test cases against the exchange using AFL. When this option is present, the HTTP server will

  1. terminate after the first client’s HTTP connection is completed, and
  2. automatically start such a client using a helper process based on the nc(1) or ncat(1) binary using FILENAME as the standard input to the helper process.

As a result, the process will effectively run with FILENAME as the input from an HTTP client and then immediately exit. This is useful to test taler-exchange-httpd against many different possible inputs in a controlled way.

-t SECONDS | –timeout=SECONDS
Specifies the number of SECONDS after which the HTTPD should close (idle) HTTP connections.
-L LOGLEVEL | –loglevel=LOGLEVEL
Specifies the log level to use. Accepted values are: DEBUG, INFO, WARNING, ERROR.

14.9.4. SIGNALS

taler-exchange-httpd responds to the following signals:

SIGUSR1
Sending a SIGUSR1 to the process will cause it to reload denomination and signing keys.
SIGTERM
Sending a SIGTERM to the process will cause it to shutdown cleanly.
SIGHUP
Sending a SIGHUP to the process will cause it to re-execute the taler-exchange-httpd binary in the PATH, passing it the existing listen socket. Then the old server process will automatically exit after it is done handling existing client connections; the new server process will accept and handle new client connections.

14.9.5. See Also

taler-exchange-dbinit(1), taler-exchange-keyup(1), taler-exchange-reservemod(1), taler.conf(5).

14.9.6. Bugs

Report bugs by using https://gnunet.org/bugs or by sending electronic mail to <taler@gnu.org>.