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Complex validation using Joi library

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1

I have this json:

let purchaseSubscription = 
 'metadata': 
 'eventName': 'PurchaseSubscription',
 'type': 'setup' // setup, repurchase or recurring
 ,
 'data': 
 'subscriptionId': '447481',
 'subscriptionTrialId': '23542'
 
;

If the metadata.type has value setup
then data.subscriptionTrialId should be validated for existence and to be a number.
If the metadata.type has other values, the data.subscriptionTrialId can be ignored.

This is what I currently have:

const Joi = require('joi');
const validTypes = ['setup', 'repurchase', 'recurring'];

exports.schema = Joi.object().keys(
 metadata: Joi.object(
 eventName: Joi.string().required(),
 type: Joi.string().valid(validTypes).required()
 ).required(),
 data: Joi.object(
 subscriptionId: Joi.number().integer().min(1).max(2147483647).required(),
 subscriptionTrialId: Joi.when(
 'metadata.type', is: 'setup', then: Joi.required() )
 ).required()
).options( 'allowUnknown': true );

But I am not getting desired results. The data.subscriptionTrialId is always validated, no matter what I have under metadata.type

I tried reading documentation, but can't make it to work :(

javascript node.js joi

share|improve this question

edited Mar 25 at 16:39

Vedran Maricevic.

asked Mar 25 at 16:32

Vedran Maricevic.Vedran Maricevic.

2,53244 gold badges3838 silver badges6565 bronze badges

add a comment | 

1

I have this json:

let purchaseSubscription = 
 'metadata': 
 'eventName': 'PurchaseSubscription',
 'type': 'setup' // setup, repurchase or recurring
 ,
 'data': 
 'subscriptionId': '447481',
 'subscriptionTrialId': '23542'
 
;

If the metadata.type has value setup
then data.subscriptionTrialId should be validated for existence and to be a number.
If the metadata.type has other values, the data.subscriptionTrialId can be ignored.

This is what I currently have:

const Joi = require('joi');
const validTypes = ['setup', 'repurchase', 'recurring'];

exports.schema = Joi.object().keys(
 metadata: Joi.object(
 eventName: Joi.string().required(),
 type: Joi.string().valid(validTypes).required()
 ).required(),
 data: Joi.object(
 subscriptionId: Joi.number().integer().min(1).max(2147483647).required(),
 subscriptionTrialId: Joi.when(
 'metadata.type', is: 'setup', then: Joi.required() )
 ).required()
).options( 'allowUnknown': true );

But I am not getting desired results. The data.subscriptionTrialId is always validated, no matter what I have under metadata.type

I tried reading documentation, but can't make it to work :(

javascript node.js joi

share|improve this question

edited Mar 25 at 16:39

Vedran Maricevic.

asked Mar 25 at 16:32

Vedran Maricevic.Vedran Maricevic.

2,53244 gold badges3838 silver badges6565 bronze badges

add a comment | 

I have this json:

let purchaseSubscription = 
 'metadata': 
 'eventName': 'PurchaseSubscription',
 'type': 'setup' // setup, repurchase or recurring
 ,
 'data': 
 'subscriptionId': '447481',
 'subscriptionTrialId': '23542'
 
;

If the metadata.type has value setup
then data.subscriptionTrialId should be validated for existence and to be a number.
If the metadata.type has other values, the data.subscriptionTrialId can be ignored.

This is what I currently have:

const Joi = require('joi');
const validTypes = ['setup', 'repurchase', 'recurring'];

exports.schema = Joi.object().keys(
 metadata: Joi.object(
 eventName: Joi.string().required(),
 type: Joi.string().valid(validTypes).required()
 ).required(),
 data: Joi.object(
 subscriptionId: Joi.number().integer().min(1).max(2147483647).required(),
 subscriptionTrialId: Joi.when(
 'metadata.type', is: 'setup', then: Joi.required() )
 ).required()
).options( 'allowUnknown': true );

But I am not getting desired results. The data.subscriptionTrialId is always validated, no matter what I have under metadata.type

I tried reading documentation, but can't make it to work :(

javascript node.js joi

share|improve this question

edited Mar 25 at 16:39

Vedran Maricevic.

asked Mar 25 at 16:32

Vedran Maricevic.Vedran Maricevic.

2,53244 gold badges3838 silver badges6565 bronze badges

let purchaseSubscription = 
 'metadata': 
 'eventName': 'PurchaseSubscription',
 'type': 'setup' // setup, repurchase or recurring
 ,
 'data': 
 'subscriptionId': '447481',
 'subscriptionTrialId': '23542'
 
;

const Joi = require('joi');
const validTypes = ['setup', 'repurchase', 'recurring'];

exports.schema = Joi.object().keys(
 metadata: Joi.object(
 eventName: Joi.string().required(),
 type: Joi.string().valid(validTypes).required()
 ).required(),
 data: Joi.object(
 subscriptionId: Joi.number().integer().min(1).max(2147483647).required(),
 subscriptionTrialId: Joi.when(
 'metadata.type', is: 'setup', then: Joi.required() )
 ).required()
).options( 'allowUnknown': true );

share|improve this question

edited Mar 25 at 16:39

Vedran Maricevic.

asked Mar 25 at 16:32

Vedran Maricevic.Vedran Maricevic.

2,53244 gold badges3838 silver badges6565 bronze badges

share|improve this question

edited Mar 25 at 16:39

Vedran Maricevic.

asked Mar 25 at 16:32

Vedran Maricevic.Vedran Maricevic.

2,53244 gold badges3838 silver badges6565 bronze badges

asked Mar 25 at 16:32

Vedran Maricevic.Vedran Maricevic.

2,53244 gold badges3838 silver badges6565 bronze badges

asked Mar 25 at 16:32

Vedran Maricevic.Vedran Maricevic.

2,53244 gold badges3838 silver badges6565 bronze badges

1 Answer
1

active

oldest

votes

1

You can use the otherwise key in the JOI schema.

Somewhere in your code before declaring exports.schema:

const trialIdRequired = Joi.object(
 subscriptionId: Joi.number().integer().min(1).max(2147483647).required(),
 subscriptionTrialId: Joi.required()
 ).required()

const trialIdNotRequired = Joi.object(
 subscriptionId: Joi.number().integer().min(1).max(2147483647).required(),
 subscriptionTrialId: Joi.any()
)

And then add a when clause to the data field

data: Joi.when(
 'metadata.type', 
 
 is: 'setup', 
 then: trialIdRequired,
 otherwise: trialIdNotRequired
 )

share|improve this answer

edited Mar 25 at 17:22

answered Mar 25 at 16:38

SerShubhamSerShubham

51622 silver badges88 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I plugged your example to the code, and for some reason it does not get validated at all, in other words it is ignored. Would you care to expand the answer, where I can see exactly what is going on? I have a feeling I am doing something silly :(
  
  – Vedran Maricevic.
  Mar 25 at 16:44
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Oops my bad! Apparently Joi does not read siblings of parent in the when clause. Updating the answer to the alternate solution.
  
  – SerShubham
  Mar 25 at 17:09
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Worked great. Thank you.
  
  – Vedran Maricevic.
  Mar 26 at 7:33
  

  
  
  
  

add a comment | 

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1

You can use the otherwise key in the JOI schema.

Somewhere in your code before declaring exports.schema:

const trialIdRequired = Joi.object(
 subscriptionId: Joi.number().integer().min(1).max(2147483647).required(),
 subscriptionTrialId: Joi.required()
 ).required()

const trialIdNotRequired = Joi.object(
 subscriptionId: Joi.number().integer().min(1).max(2147483647).required(),
 subscriptionTrialId: Joi.any()
)

And then add a when clause to the data field

data: Joi.when(
 'metadata.type', 
 
 is: 'setup', 
 then: trialIdRequired,
 otherwise: trialIdNotRequired
 )

share|improve this answer

edited Mar 25 at 17:22

answered Mar 25 at 16:38

SerShubhamSerShubham

51622 silver badges88 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I plugged your example to the code, and for some reason it does not get validated at all, in other words it is ignored. Would you care to expand the answer, where I can see exactly what is going on? I have a feeling I am doing something silly :(
  
  – Vedran Maricevic.
  Mar 25 at 16:44
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Oops my bad! Apparently Joi does not read siblings of parent in the when clause. Updating the answer to the alternate solution.
  
  – SerShubham
  Mar 25 at 17:09
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Worked great. Thank you.
  
  – Vedran Maricevic.
  Mar 26 at 7:33
  

  
  
  
  

add a comment | 

1

You can use the otherwise key in the JOI schema.

Somewhere in your code before declaring exports.schema:

const trialIdRequired = Joi.object(
 subscriptionId: Joi.number().integer().min(1).max(2147483647).required(),
 subscriptionTrialId: Joi.required()
 ).required()

const trialIdNotRequired = Joi.object(
 subscriptionId: Joi.number().integer().min(1).max(2147483647).required(),
 subscriptionTrialId: Joi.any()
)

And then add a when clause to the data field

data: Joi.when(
 'metadata.type', 
 
 is: 'setup', 
 then: trialIdRequired,
 otherwise: trialIdNotRequired
 )

share|improve this answer

edited Mar 25 at 17:22

answered Mar 25 at 16:38

SerShubhamSerShubham

51622 silver badges88 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I plugged your example to the code, and for some reason it does not get validated at all, in other words it is ignored. Would you care to expand the answer, where I can see exactly what is going on? I have a feeling I am doing something silly :(
  
  – Vedran Maricevic.
  Mar 25 at 16:44
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Oops my bad! Apparently Joi does not read siblings of parent in the when clause. Updating the answer to the alternate solution.
  
  – SerShubham
  Mar 25 at 17:09
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Worked great. Thank you.
  
  – Vedran Maricevic.
  Mar 26 at 7:33
  

  
  
  
  

add a comment | 

You can use the otherwise key in the JOI schema.

Somewhere in your code before declaring exports.schema:

const trialIdRequired = Joi.object(
 subscriptionId: Joi.number().integer().min(1).max(2147483647).required(),
 subscriptionTrialId: Joi.required()
 ).required()

const trialIdNotRequired = Joi.object(
 subscriptionId: Joi.number().integer().min(1).max(2147483647).required(),
 subscriptionTrialId: Joi.any()
)

And then add a when clause to the data field

data: Joi.when(
 'metadata.type', 
 
 is: 'setup', 
 then: trialIdRequired,
 otherwise: trialIdNotRequired
 )

share|improve this answer

edited Mar 25 at 17:22

answered Mar 25 at 16:38

SerShubhamSerShubham

51622 silver badges88 bronze badges

const trialIdRequired = Joi.object(
 subscriptionId: Joi.number().integer().min(1).max(2147483647).required(),
 subscriptionTrialId: Joi.required()
 ).required()

const trialIdNotRequired = Joi.object(
 subscriptionId: Joi.number().integer().min(1).max(2147483647).required(),
 subscriptionTrialId: Joi.any()
)

data: Joi.when(
 'metadata.type', 
 
 is: 'setup', 
 then: trialIdRequired,
 otherwise: trialIdNotRequired
 )

share|improve this answer

edited Mar 25 at 17:22

answered Mar 25 at 16:38

SerShubhamSerShubham

51622 silver badges88 bronze badges

answered Mar 25 at 16:38

SerShubhamSerShubham

51622 silver badges88 bronze badges

answered Mar 25 at 16:38

SerShubhamSerShubham

51622 silver badges88 bronze badges