odata-query

odata-query

OData v4 query builder that uses a simple object-based syntax similar to MongoDB and js-data

Install

yarn add odata-query

or

npm install --save odata-query

and then use the library

import buildQuery from 'odata-query'

const query = buildQuery({...})
fetch(`http://localhost${query}`)

where the query object syntax for {...} is defined below. There is also react-odata which utilizies this library for a declarative React component.

Usage

See tests for examples as well

Filtering

buildQuery({ filter: {...} })
=> '?$filter=...'

Simple filter

const filter = { PropName: 1 };
buildQuery({ filter })
=> '?$filter=PropName eq 1'

Comparison operators

const filter = { PropName: { gt: 5 } };
buildQuery({ filter })
=> '?$filter=PropName gt 5'

Supported operators: eq, ne, gt, ge, lt, le, in

Logical operators

Implied and with an array of objects

const filter = [{ SomeProp: 1 }, { AnotherProp: 2 }, 'startswith(Name, "foo")'];
buildQuery({ filter })
=> '?$filter=SomeProp eq 1 and AnotherProp eq 2 and startswith(Name, "foo")'

Implied and with multiple comparison operators for a single property

Useful to perform a between query on a Date property

const startDate = new Date(Date.UTC(2017, 0, 1)) 
const endDate = new Date(Date.UTC(2017, 2, 1)) 
const filter = { DateProp: { ge: startDate, le: endDate } }
buildQuery({ filter })
=> "?$filter=DateProp ge 2017-01-01T00:00:00Z and DateProp le 2017-03-01T00:00:00Z"

Explicit operator

const filter = {
  and: [
    { SomeProp: 1 },
    { AnotherProp: 2 },
    'startswith(Name, "foo")'
  ]
};
    
buildQuery({ filter })
=> '?$filter=SomeProp eq 1 and AnotherProp eq 2 and startswith(Name, "foo")'

Supported operators: and, or

Collection operators

Implied and

Using an object

const filter = {
  ItemsProp: {
    any: {
      SomeProp: 1,
      AnotherProp: 2
    }
  }
};
    
buildQuery({ filter })
=> '?$filter=ItemsProp/any(i:i/SomeProp eq 1 and i/AnotherProp eq 2)'

or also as an array of object

const filter = {
  ItemsProp: {
    any: [
      { SomeProp: 1 },
      { AnotherProp: 2},
    ]
  }
};
    
buildQuery({ filter })
=> '?$filter=ItemsProp/any(i:i/SomeProp eq 1 and i/AnotherProp eq 2)'

Specify logical operator (and, or)

const filter = {
  ItemsProp: {
    any: {
      or: [
        { SomeProp: 1 },
        { AnotherProp: 2},
      ]
    }
  }
};
    
buildQuery({ filter })
=> '?$filter=ItemsProp/any(i:(i/SomeProp eq 1 or i/AnotherProp eq 2)'

Supported operators: any, all

Functions

String functions returning boolean

const filter = { PropName: { contains: 'foo' } };
buildQuery({ filter })
=> "$filter=contains(PropName, 'foo')"

Supported operators: startswith, endswith, contains

Functions returning non-boolean values (string, int)

const filter = { 'length(PropName)': { gt: 10 } };
buildQuery({ filter })
=> "$filter=length(PropName) gt 10"

Supported operators: length, tolower, toupper, trim, day, month, year, hour, minute, second, round, floor, ceiling

Functions returning non-boolean values (string, int) with parameters

const filter = { "indexof(PropName, 'foo')": { eq: 3 } };
buildQuery({ filter })
=> "$filter=indexof(PropName, 'foo') eq 3"

Supported operators: indexof, substring

Data types

Coming soon

Strings

A string can also be passed as the value of the filter and it will be taken as is. This can be useful when using something like odata-filter-builder or if you want to just write the OData filter sytnax yourself but use the other benefits of the library, such as groupBy, expand, etc.

import f from 'odata-filter-builder';

const filter = f().eq('TypeId', '1')
                  .contains(x => x.toLower('Name'), 'a')
                  .toString();
buildQuery({ filter })

Selecting

const select = ['Foo', 'Bar'];
buildQuery({ select })
=> '?$select=Foo,Bar'

Ordering

const orderBy = ['Foo desc', 'Bar'];
buildQuery({ orderBy })
=> '?$orderby=Foo desc,Bar'

Expanding

Coming soon

Pagination (skip and top)

Get page 3 (25 records per page)

const page = 3;
const perPage = 25;
const top = perPage;
const skip = perPage * (page - 1);
buildQuery({ top, skip })
=> '?$top=25&$skip=50'

Counting

Include count inline with result

const count = true;
buildQuery({ count })
=> '?$count=true'

Or you can return only the count by passing a filter object to count (or empty object to count all)

const count = { PropName: 1 }
const query = buildQuery({ count })
=> '/$count?$filter=PropName eq 1'

Grouping / aggregation

Coming soon