I need to programmatically set a query parameter on my request. Up until a week or two ago I was able to do the following, and it worked: //url: env.com/path?param1 // update param1 to new value let queryParam1 = 'whatever'; pm.request.url.query[0] = queryParam1; This doesn’t work anymore. How do…

So I’m pretty new to postman scripting, but I think this might work for you. If I know the index of my parameter to update, as it seems you are wanting to do, I have been successful with pm.request.url.query.idx(0).value = "newValue";

In your pre-request script, set a variable, e.g. postman.setEnvironmentVariable(“queryParam1”, “whatever”); Then you can use {{queryParam1}} in your query parameters just like you set the rest of them.

What actually worked for me all the time was: //console.log("----- Encode query string"); //console.log("Input: " + pm.request.url.query.toString()); var querycount = pm.request.url.query.count(); for(let i = 0; i < querycount; i++) { //console.log(i + "/" + pm.request.url.query.idx(i).key + ": "…

to add query params there is 2 ways pm.request.addQueryParams("auth_username={{username}}") pm.request.url.query.add("auth_password={{password}}") you can loop over pm.request.url.query it is an array of objects, every object has 3 properties { disabled: true, // only if it is disabled …

This pre-request might be useful for those wishing to modify a single named query parameter: const { key, value } = pm.request.url.query.find(q => q.key === 'myParam') pm.request.removeQueryParams(key) pm.request.addQueryParams(`${key}=${doSomethingToUpdate(value)}`)

I have created a generic function for adding query params to request query. It will update or insert request query based on the key. It does extra check for the key is it falsey and make value empty string if value is falsey. function upsertQueryParams(key, value) { if (!key) { throw ne…

I could never get these examples to work for me. So, rightly or wrongly, I finally resorted to removing the queryParam and adding it back in the pre-request script. // Invalid queryParam value: incoterm const queryParam = "incoterm"; if (pm.request.url.getQueryString().includes(queryParam)) { …

FYI, for anyone who is looking at this years later and going insane thinking pm.request.url.query is an Array: it is not: Url - Postman Documentation shows that the url’s member “query” is a PropertyList .< QueryParam >. A look at the source code for collection/property-list.js shows that the methods …

Modify query param in pre-request script

Help Hub

delaneyc (Chris Delaney) November 8, 2019, 3:57pm 2

Seems I can do it like this now, but I’d still like to know if there’s a “right” way so my scripts don’t break again:

pm.request.url.query.add(‘param1=’ + paramValue);

2 Likes

Topic		Replies	Views
Query Parameters Are Automatically Added to Request URL Help Hub	4	4696	July 28, 2020
HELP \| Regarding pm.sendRequest() and pm.request.url.addQueryParams() Help Hub pmsendrequest , pre-request-script	0	3480	June 12, 2020
Request body with field value set in pre-request Script Help Hub	3	1609	September 2, 2020
How to change request body before sending request Help Hub request , pre-request-script	6	30692	August 24, 2023
Updating Path Variable in URL before posting Help Hub pre-request-script , url-params	11	3217	December 14, 2024

Modify query param in pre-request script

Related topics