How do I get the arg validator to accept arbitrary keys for an object
#How do I get the arg validator to accept arbitrary keys for an object
dry saddle
strange timberBOT
Hi @dry saddle. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
In Convex, you can use the v.record function to describe objects that map arbitrary keys to values. This function is part of the argument and return value validation system in Convex. Here's an example of how you can use it:
import { mutation } from "./_generated/server";
import { v } from "convex/values";
export default mutation({
args: {
simpleMapping: v.record(v.string(), v.boolean()),
},
handler: async ({ db }, { simpleMapping }) => {
//...
},
});
In this example, v.record(v.string(), v.boolean()) is used to describe an object that maps string keys to boolean values. You can replace v.string() and v.boolean() with other validators to suit your needs.
Please note that this type corresponds to the Record<K,V> type in TypeScript. You cannot use string literals as a record key. Using v.string() as a record key validator will only allow ASCII characters.
For more information, you can refer to the Convex documentation (https://docs.convex.dev/functions/validation#record-objects).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
dry saddle
I need to define the number of keys in the record?
@strange timber I need to define the number of keys in the record?
strange timberBOT
Let me check the knowledge base for you. One moment! :books:
No, you don't need to define the number of keys when using v.record in Convex. The v.record function is designed to handle objects with arbitrary keys. This means you can have as many keys as you need in your object, and they can be any string values (when using v.string() as the key validator).
Here's an example:
import { mutation } from "./_generated/server";
import { v } from "convex/values";
export default mutation({
args: {
simpleMapping: v.record(v.string(), v.boolean()),
},
handler: async ({ db }, { simpleMapping }) => {
//...
},
});
In this example, simpleMapping can be an object with any number of keys, as long as the keys are strings and the values are booleans.
For more information, you can refer to the Convex documentation (https://docs.convex.dev/functions/validation#record-objects).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
dry saddle
what if i want the keys and vaues to be arbitrary
@strange timber what if i want the keys and vaues to be arbitrary
strange timberBOT
Let me check the knowledge base for you. One moment! :books:
If you want both the keys and values to be arbitrary, you can use v.record(v.any(), v.any()). This will allow any type for both the keys and the values. Here's an example:
import { mutation } from "./_generated/server";
import { v } from "convex/values";
export default mutation({
args: {
arbitraryMapping: v.record(v.any(), v.any()),
},
handler: async ({ db }, { arbitraryMapping }) => {
//...
},
});
In this example, arbitraryMapping can be an object with any number of keys of any type, and the values can also be of any type.
However, please note that while v.any() allows any type, it's generally recommended to be as specific as possible with your validators to prevent unexpected data types.
For more information, you can refer to the Convex documentation (https://docs.convex.dev/api/modules/values#type-declaration-1).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
dry saddle
@strange timber Why did you repeat any twice
strange timberBOT
Let me check the knowledge base for you. One moment! :books:
The v.record function in Convex takes two arguments: the first one is for validating the keys of the object, and the second one is for validating the values.
When you see v.record(v.any(), v.any()), the first v.any() is saying "allow any type for the keys", and the second v.any() is saying "allow any type for the values".
So, in this case, repeating v.any() twice is necessary because we are specifying that both the keys and the values can be of any type.
For more information, you can refer to the Convex documentation (https://docs.convex.dev/api/modules/values#type-declaration-1).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
dry saddle
@strange timber No any is not accepted, must be strings
strange timberBOT
Let me check the knowledge base for you. One moment! :books:
I apologize for the confusion. In Convex, the keys in a v.record must be strings. The v.any() validator is not accepted for keys. You can use v.string() for the keys and v.any() for the values if you want the values to be of any type. Here's an example:
import { mutation } from "./_generated/server";
import { v } from "convex/values";
export default mutation({
args: {
arbitraryMapping: v.record(v.string(), v.any()),
},
handler: async ({ db }, { arbitraryMapping }) => {
//...
},
});
In this example, arbitraryMapping can be an object with any number of string keys, and the values can be of any type.