By default, if a task has passed previously and a workflow is re-run,
the task will not be re-run. Instead, the output from the previous task
run will be returned. This is to prevent unnecessary re-runs of tasks
that have already passed.
This PR allows you to configure this behavior through the
`retries.shouldRestore` property. This property accepts a boolean or a
function for more complex restore behaviors.
## Fix default retries
By default, if no `retries` property has been set, jobs / tasks should
not be retried. This was not the case previously, as the `maxRetries`
variable was `undefined`, causing jobs to retry endlessly. This PR sets
them to `0` by default.
Additionally, this fixes some undesirable behavior of the workflow
retries property. Workflow retries now act as **maximum**,
workflow-level retries. Only tasks that do not have a retry property set
will inherit the workflow-level retries.
## Fix error messages
Previously, you were able to encounter error messages with undefined
values like these:
Reason is that it was always using `job.workflowSlug` for the error
messages. However, if you queue a task directly, without a workflow,
`job.workflowSlug` is undefined and `job.taskSlug` should be used
instead.
This PR then gets rid of the second undefined value by ensuring that
`maxRetries´ is never undefined
### What?
Fixes a formatting issue that prevents
payloadcms.com/docs/beta/jobs-queue/overview from displaying properly.
There were a couple `<strong>` tags in the `jobs-queue/overview` docs
that did not have proper closing `</strong>` tags.
Adds a jobs queue to Payload.
- [x] Docs, w/ examples for Vercel Cron, additional services
- [x] Type the `job` using GeneratedTypes in `JobRunnerArgs`
(@AlessioGr)
- [x] Write the `runJobs` function
- [x] Allow for some type of `payload.runTask`
- [x] Open up a new bin script for running jobs
- [x] Determine strategy for runner endpoint to either await jobs
successfully or return early and stay open until job work completes
(serverless ramifications here)
- [x] Allow for job runner to accept how many jobs to run in one
invocation
- [x] Make a Payload local API method for creating a new job easily
(payload.createJob) or similar which is strongly typed (@AlessioGr)
- [x] Make `payload.runJobs` or similar (@AlessioGr)
- [x] Write tests for retrying up to max retries for a given step
- [x] Write tests for dynamic import of a runner
The shape of the config should permit the definition of steps separate
from the job workflows themselves.
```js
const config = {
// Not sure if we need this property anymore
queues: {
},
// A job is an instance of a workflow, stored in DB
// and triggered by something at some point
jobs: {
// Be able to override the jobs collection
collectionOverrides: () => {},
// Workflows are groups of tasks that handle
// the flow from task to task.
// When defined on the config, they are considered as predefined workflows
// BUT - in the future, we'll allow for UI-based workflow definition as well.
workflows: [
{
slug: 'job-name',
// Temporary name for this
// should be able to pass function
// or path to it for Node to dynamically import
controlFlowInJS: '/my-runner.js',
// Temporary name as well
// should be able to eventually define workflows
// in UI (meaning they need to be serialized in JSON)
// Should not be able to define both control flows
controlFlowInJSON: [
{
task: 'myTask',
next: {
// etc
}
}
],
// Workflows take input
// which are a group of fields
input: [
{
name: 'post',
type: 'relationship',
relationTo: 'posts',
maxDepth: 0,
required: true,
},
{
name: 'message',
type: 'text',
required: true,
},
],
},
],
// Tasks are defined separately as isolated functions
// that can be retried on fail
tasks: [
{
slug: 'myTask',
retries: 2,
// Each task takes input
// Used to auto-type the task func args
input: [
{
name: 'post',
type: 'relationship',
relationTo: 'posts',
maxDepth: 0,
required: true,
},
{
name: 'message',
type: 'text',
required: true,
},
],
// Each task takes output
// Used to auto-type the function signature
output: [
{
name: 'success',
type: 'checkbox',
}
],
onSuccess: () => {},
onFail: () => {},
run: myRunner,
},
]
}
}
```
### `payload.createJob`
This function should allow for the creation of jobs based on either a
workflow (group of tasks) or an individual task.
To create a job using a workflow:
```js
const job = await payload.createJob({
// Accept the `name` of a workflow so we can match to either a
// code-based workflow OR a workflow defined in the DB
// Should auto-type the input
workflowName: 'myWorkflow',
input: {
// typed to the args of the workflow by name
}
})
```
To create a job using a task:
```js
const job = await payload.createJob({
// Accept the `name` of a task
task: 'myTask',
input: {
// typed to the args of the task by name
}
})
```
---------
Co-authored-by: Alessio Gravili <alessio@gravili.de>
Co-authored-by: Dan Ribbens <dan.ribbens@gmail.com>
