pipe.template_render_failed

A template failed to render


Type	`https://mthds.ai/errors/pipe.template_render_failed`
Family	`pipe`: A pipe failing at run time because of what the method does.
Domain	`method`: the method's author acts, by changing the method
Retry	`no`: repeating the operation fails the same way
HTTP status	`422`
Raised as	a problem document, sent as the body of an HTTP response or kept in a run's record

What it means

A method's template raised while rendering with this run's values, such as a filter applied to a value it cannot take. The problem does not carry what the template engine reported, which can quote the run's inputs or outputs; an implementation keeps it for whoever runs the runtime, in its logs for instance.

What to do

Check how the template uses the variable params.variable names, rendering it locally on the same inputs to read the engine's report, or reading the report where whoever runs the runtime keeps it. Guard the read if the value can be absent, and run the method again.

Next steps

A problem carries the step aimed at whoever reads it: the first when its reader is the domain's actor, the method's author, and the second for any other reader.

Reader	Kind	Detail
The domain's actor	`change_method`	Fix the template of pipe '`{pipe}`' where it reads '`{variable}`', then run the method again.
Any other reader	`contact_owner`	Ask the method's owner to fix the template of pipe '`{pipe}`'.

Detail

The problem's detail is written from this template, filled with the occurrence's parameters:

A template of pipe '{pipe}' failed to render at '{variable}'.

Parameters

Every parameter is present on every occurrence of the code.

Name	Type	Description
`pipe`	`identifier`	The pipe whose template failed.
`variable`	`identifier`	The variable the template was reading when it failed.