Joi: Support to validate Payload which can be a single object or array of objects.

[kailashyogeshwar85]

Context

• v6.9.1:
• 7.3.0:
• node :
• hapi :
• validating payload by defining schema in config object in routes file:

What are you trying to achieve or the steps to reproduce ?

I have a route [POST] on my api server which is used for storing data in db . Client has the flexibility to pass the payload as the single js object or array of js objects and rest part is handled on server side.

// sample payload are: 
 {
    "label": "AuthToken",
    "key": "authtoken",
    "placeholder": "AuthToken",
    "help_text":"authtoken"
 }

 // or

[
 {
    "label": "AuthToken",
    "key": "authtoken",
    "placeholder": "AuthToken",
    "help_text":"authtoken"
 },
 {
    "label": "Secret",
    "key": "secret",
    "placeholder": "Secret",
    "help_text":"secret"
 }
]

 // routes.js

module.exports = [
{ path: '/api/saveFields', method: 'POST', config: {validate:{ payload:  Schemas.customSchema }, handler: handlerJS }  }
]

Currently there is no such feature to validate if it is array or validate if it is single object . I have put all my validation schemas in separate files and used in this route files rather than in my handler.

[mtharrison]

Currently there is no such feature to validate if it is array or validate if it is single object

Did you try Joi.alternatives()?

[Marsup]

This feature exists, it's Joi.array().single().

[AdriVanHoudt]

hmm would the intent of that not be clearer as allowSingle or something?
And the result is always an array right?

[Marsup]

I'm trying to keep names short. The result will always be an array yes, I guess that's a difference with the alternatives solution.