Error to post the data in python requests - python-3.x

Question

While am trying to post the data with python requests, error raises
Actual form data from browser inspection console:
{"params":"query=&hitsPerPage=1000&facetFilters=%5B%5B%22catalogs%3A000buyvallencom%22%5D%2C%22active%3Atrue%22%2C%22slug%3A3m-05710-superbuff-pad-adapter-p8hg1vv3b6b2%22%2C%22active%3Atrue%22%5D"}
I had tried the following:
session=requests.session()
data={
"params":"query=&hitsPerPage=1000&facetFilters=%5B%5B%22catalogs%3A000buyvallencom%22%5D%2C%22active%3Atrue%22%2C%22slug%3A3m-05710-superbuff-pad-adapter-p8hg1vv3b6b2%22%2C%22active%3Atrue%22%5D"
}
response = session.post('https://lcz09p4p1r-dsn.algolia.net/1/indexes/ecomm_production_products/query?x-algolia-agent=Algolia%20for%20AngularJS%203.32.0&x-algolia-application-id=LCZ09P4P1R&x-algolia-api-key=2d74cf84e190a2f9cd8f4fe6d32613cc',data=data)
print(response.text)
But while am posting, getting an error as
{"message":"lexical error: invalid char in json text. Around 'params=que' near line:1 column:1","status":400}

Answer 1

The API accepts JSON encoded POST data. Change the data=data to json=data in your post request.
From the documentation
Instead of encoding the dict yourself, you can also pass it directly
using the json parameter (added in version 2.4.2) and it will be
encoded automatically:
>>> url = 'https://api.github.com/some/endpoint'
>>> payload = {'some': 'data'}
>>> r = requests.post(url, json=payload)
Note, the json parameter is ignored if either data or files is passed.
Using the json parameter in the request will change the Content-Type
in the header to application/json.
Code
import requests
session=requests.session()
url='https://lcz09p4p1r-dsn.algolia.net/1/indexes/ecomm_production_products/query?x-algolia-agent=Algolia%20for%20AngularJS%203.32.0&x-algolia-application-id=LCZ09P4P1R&x-algolia-api-key=2d74cf84e190a2f9cd8f4fe6d32613cc'
data={
"params":"query=&hitsPerPage=1000&facetFilters=%5B%5B%22catalogs%3A000buyvallencom%22%5D%2C%22active%3Atrue%22%2C%22slug%3A3m-05710-superbuff-pad-adapter-p8hg1vv3b6b2%22%2C%22active%3Atrue%22%5D"
}
response = session.post(url,json=data)
print(response.text)
Output
{"hits":[{"active":true,"heading":"05710 Superbuff Pad Adapter","heading_reversed":"Adapter Pad Superbuff 05710","subheading":"","features":"Our 3M™ Adaptors for Polishers are designed for saving time and hassle in collision repair jobs requiring double-sided screw-on compounding and polishing pads. It is part of a fast, effective assembly that incorporates our 3M™ Perfect-It™ Backup Pad and wool polishing pads, allowing users to quickly attach them without removing the adaptor. This durable adaptor is used with all polishers.<br>• Part of a complete assembly for compounding and polishing<br>• Designed to attach buffing pads or backup pads to machine polishers<br>• Helps reduce wear and vibration<br>• Users can change screw-on pads without removing the adaptor, saving time<br>• Provides hassle-free centering with 3M double-sided wool compounding and polishing pads","product_id":"P8HG1VV3B6B2","product_number":"IDG05114405710","brand":"","keywords":"sanding, polishing, buffing","image":"G8HI043XOD5X.jpg","image_type":"illustration","unspsc":"31191505","system":"sxe","cost":9.0039,"catalogs":["000BuyVallenCom"],"vendor":{"name":"3M","slug":"3m","vendor_id":"VACF1JS0AAP0","image":"G8HIP6V1J7UJ.jpg"},"taxonomy":{"department":{"name":"Paint, Marking & Tape","slug":"paint-marking-tape"},"category":{"name":"Filling, Polishing, Buffing","slug":"filling-polishing-buffing"},"style":{"name":"Adapters","slug":"adapters"},"type":{"name":"Pads","slug":"pads"},"vendor":{"name":"3M","slug":"3m"}},"slug":"3m-05710-superbuff-pad-adapter-p8hg1vv3b6b2","color":null,"material":null,"model":null,"model_number":null,"shape":null,"size":null,"display_brand":null,"style":null,"purpose":null,"product_type":null,"specifications":[],"item_specifications":[],"batch_id":"000BuyVallenCom-1551410144451","status":"Stk","erp":"05114405710","iref":null,"cpn":null,"gtin":"00051144057108","description":"05710 ADAPTOR 5/8 SHAFT SUPERBUFF","sequence":10,"item_id":"I8HG1VV6JL3B","vpn":"05710","uom":"Ea","specification_values":[],"objectID":"000BuyVallenCom-P8HG1VV3B6B2-I8HG1VV6JL3B","_highlightResult":{"heading_reversed":{"value":"Adapter Pad Superbuff 05710","matchLevel":"none","matchedWords":[]},"subheading":{"value":"","matchLevel":"none","matchedWords":[]},"brand":{"value":"","matchLevel":"none","matchedWords":[]},"taxonomy":{"style":{"name":{"value":"Adapters","matchLevel":"none","matchedWords":[]}}}}}],"nbHits":1,"page":0,"nbPages":1,"hitsPerPage":1000,"processingTimeMS":1,"exhaustiveNbHits":true,"query":"","params":"query=&hitsPerPage=1000&facetFilters=%5B%5B%22catalogs%3A000buyvallencom%22%5D%2C%22active%3Atrue%22%2C%22slug%3A3m-05710-superbuff-pad-adapter-p8hg1vv3b6b2%22%2C%22active%3Atrue%22%5D"}
Documentation
More complicated POST requests
Algolia API