Library
Module
Module type
Parameter
Class
Class type
The PostgreSQL queue backend supports fully persistent queues and locking.
include Sihl.Contract.Queue.Sig
val router :
?back:string ->
?theme:[ `Custom of string | `Light | `Dark ] ->
string ->
Sihl.Web.router
router ?back scope
returns a router that can be passed to the web server to serve the job queue dashboard.
back
is an optional URL which renders a back button on the dashboard. Use this to provide your admin user a way to easily exit the dashboard. By default, no URL is provided and no back button is shown.
scope
is the URL path under which the dashboard can be accessed. It is common to have some admin UI under /admin
, the job queue dashboard could be available under /admin/queue
.
You can use HTMX by setting HTMX_SCRIPT_URL
to the URL of the HTMX JavaScript file that is then embedded into the dashboard using the <script> tag in the page body. HTMX is used to add dynamic features such as auto-refresh. The dashboard is perfectly usable without it. By default, HTMX is not used.
val dispatch :
?ctx:(string * string) list ->
?delay:Ptime.span ->
'a ->
'a Sihl__.Contract_queue.job ->
unit Lwt.t
dispatch ?ctx ?delay input job
queues job
for later processing and returns unit Lwt.t
once the job has been queued.
An optional delay
determines the amount of time from now (when dispatch is called) up until the job can be run. If no delay is specified, the job is processed as soon as possible.
input
is the input of the handle
function which is used for job processing.
val dispatch_all :
?ctx:(string * string) list ->
?delay:Ptime.span ->
'a list ->
'a Sihl__.Contract_queue.job ->
unit Lwt.t
dispatch_all ?ctx ?delay inputs jobs
queues all jobs
for later processing and returns unit Lwt.t
once all the jobs has been queued. The jobs are put onto the queue in reverse order. The first job in the list of jobs
is put onto the queue last, which means it gets processed first.
If the queue backend supports transactions, dispatch_all
guarantees that either none or all jobs are queued.
An optional delay
determines the amount of time from now (when dispatch is called) up until the jobs can be run. If no delay is specified, the jobs are processed as soon as possible.
inputs
is the input of the handle
function. It is a list of 'a
, one for each 'a job
instance.
register_jobs jobs
registers jobs that can be dispatched later on.
Only registered jobs can be dispatched. Dispatching a job that was not registered does nothing.