POST /api/select

Request	`POST /api/select`
Authentication	Session cookie required
Handler	`backend/server.py`

What it does

Takes a product the feed showed and makes it the session's held product. The hold is resolved through the same single function every other endpoint uses; the exclusivity defect that reopened twice came from two code paths resolving a hold independently, and this endpoint does not add a third.

Authentication

Session cookie required. Send the ff_session cookie. Without one the engine treats the caller as a new visitor with no holds and no claims, and returns a new cookie to use from then on.

Parameters

Parameter	In	Type	Required	Description
`ff_session`	cookie	`string`	Optional	The session identifier. Omit it on the first call and store the value the response sets; every later call must send the same one or the engine treats the caller as a new visitor with no holds and no claims.
`product_id`	body	`string`	Required	Catalog identifier of the product to hold. Must be a product this session was shown.

Request

The cookie jar carries the session between calls. Angle-bracketed values are the parameter types from the table above.

cURLJavaScriptPython

curl -s -b cookies.txt -c cookies.txt \
  -X POST -H 'Content-Type: application/json' \
  -d '{"product_id":"<string>"}' \
  "https://flowfinds.ai/api/select"

const res = await fetch("https://flowfinds.ai/api/select", {
  method: "POST",
  credentials: "include",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "product_id": "<string>"
  }),
});
const data = await res.json();

import requests

s = requests.Session()
r = s.post("https://flowfinds.ai/api/select", json={
    "product_id": "<string>"
  })
data = r.json()

Recorded example

curl -s -b cookies.txt -c cookies.txt \
  -X POST -H 'Content-Type: application/json' \
  -d '{"product_id":"…"}' \
  "$FLOWFINDS_ORIGIN/api/select"

Responses

`200` — The hold moved.

Field	Type	Description
`status`	`string`	`selected`.
`held`	`string \| null`	The product now held by this session.
`product_id`	`string`	The product that was selected.
`held_minutes`	`number`	The hold window, in minutes.

Errors

Status	Reason	When
`400`	—	The body is not JSON, or `product_id` is missing.
`404`	—	No catalog product carries that identifier.
`409`	—	The product is held or claimed by another founder, or is not servable.

GET /api/find — Serve this session's product, minting a hold if it does not have one.
GET /api/feed — Serve the whole field: this session's find first, then what it beat.
POST /api/pass — Claim the held product, or pass on it and be shown the next one.
POST /api/analyze — Run the analyser over any product description, claimed or not.
GET /api/analysis — The analysis of the product this session holds.
POST /api/ask — Ask a question against one or more catalog products.
POST /api/discover — Run the discovery script and return its terminal output verbatim.
GET /api/discovery-research — Read the state of the external discovery research job.

Back to the API reference index, or read the cookbook for recipes that compose this endpoint with others.