adding filters dynamically to DSL query body generated using bodybuilder.js

Question

The server gets an array of query terms from a frontend ajax call:

req.query.filterTerms=['black', 'white', 'green']

I need to chain each ofthese filters to the bodybuilder query which is:

var body=bodybuilder()
.query('match', 'searchable', req.query.querytext)
.from(i)
.build();

How do i dynamically chain .filter() method/function for each of the query terms in the array to the bodybuilder instance?

score 1 · Answer 1 · answered Jun 18 '18 at 07:34

You might be able to use reduce:

    const filterTerms = ['red', 'green', 'black'];
    const body = bodybuilder();
    body.query('match', 'searchable', 'foobar');
    const chainedFilter = filterTerms.reduce((filterBody, term) => {
        return filterBody.filter('match', 'term', term)
    }, body);
    console.log(JSON.stringify(body.build(), null, 2))

<script src="https://rawgit.com/danpaz/bodybuilder/master/browser/bodybuilder.min.js"></script>

This is the functional equivalent of chaining the commands together.

score 0 · Answer 2 · answered Jun 25 '17 at 03:28

for anyone with a similar problem, try console.log the body object created with the build method on the bodybuilder instance, after manually inserting a filter method on the instance with the parameters typed by you manually.It will show the structure that you can use to append to the bodybuilder filter clauses.

adding filters dynamically to DSL query body generated using bodybuilder.js

2 Answers2