Source: https://tanstack.com/db/latest/docs/reference/functions/parseLoadSubsetOptions

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On this page

• Function: parseLoadSubsetOptions()

• Parameters

• options

• Returns

• filters

• limit?

• sorts

• Example

parseLoadSubsetOptions

Copy Markdown

Function: parseLoadSubsetOptions()
==================================

ts

function parseLoadSubsetOptions(options): object;


function parseLoadSubsetOptions(options): object;

Defined in: packages/db/src/query/expression-helpers.ts:499

Convenience function to get all LoadSubsetOptions in a pre-parsed format. Good starting point for simple use cases.

Parameters
---------- ### options

The LoadSubsetOptions from ctx.meta

{ limit?: number; orderBy?: OrderBy ; where?: BasicExpression<boolean>; } | null | undefined

Returns
-------

object

Pre-parsed filters, sorts, and limit

### filters

ts

filters: SimpleComparison[];


filters: SimpleComparison[];

### limit?

ts

optional limit: number;


optional limit: number;

### sorts

ts

sorts: ParsedOrderBy[];


sorts: ParsedOrderBy[];

Example
-------

typescript

queryFn: async (ctx) => {
  const parsed = parseLoadSubsetOptions(ctx.meta?.loadSubsetOptions)

  // Convert to your API format
  return api.getProducts({
    ...Object.fromEntries(
      parsed.filters.map(f => [`${f.field.join('.')}_${f.operator}`, f.value])
    ),
    sort: parsed.sorts.map(s => `${s.field.join('.')}:${s.direction}`).join(','),
    limit: parsed.limit
  })
}


queryFn: async (ctx) => {
  const parsed = parseLoadSubsetOptions(ctx.meta?.loadSubsetOptions)

  // Convert to your API format
  return api.getProducts({
    ...Object.fromEntries(
      parsed.filters.map(f => [`${f.field.join('.')}_${f.operator}`, f.value])
    ),
    sort: parsed.sorts.map(s => `${s.field.join('.')}:${s.direction}`).join(','),
    limit: parsed.limit
  })
}

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