Redeploy a backend function

curl --request POST \
  --url https://app.base44.com/api/apps/{app_id}/coding/redeploy-function/{function_name} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "code": "Deno.serve(async (req) => {\n  return Response.json({ ok: true });\n});\n"
}
'

import requests

url = "https://app.base44.com/api/apps/{app_id}/coding/redeploy-function/{function_name}"

payload = { "code": "Deno.serve(async (req) => {
  return Response.json({ ok: true });
});
" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    code: 'Deno.serve(async (req) => {\n  return Response.json({ ok: true });\n});\n'
  })
};

fetch('https://app.base44.com/api/apps/{app_id}/coding/redeploy-function/{function_name}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://app.base44.com/api/apps/{app_id}/coding/redeploy-function/{function_name}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'code' => 'Deno.serve(async (req) => {
  return Response.json({ ok: true });
});
'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://app.base44.com/api/apps/{app_id}/coding/redeploy-function/{function_name}"

	payload := strings.NewReader("{\n  \"code\": \"Deno.serve(async (req) => {\\n  return Response.json({ ok: true });\\n});\\n\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://app.base44.com/api/apps/{app_id}/coding/redeploy-function/{function_name}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"code\": \"Deno.serve(async (req) => {\\n  return Response.json({ ok: true });\\n});\\n\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.base44.com/api/apps/{app_id}/coding/redeploy-function/{function_name}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"code\": \"Deno.serve(async (req) => {\\n  return Response.json({ ok: true });\\n});\\n\"\n}"

response = http.request(request)
puts response.read_body

{
  "id": "6820f3a4e7b91d003c45a1f2",
  "created_date": "2026-08-01T09:15:00",
  "updated_date": "2026-08-02T14:30:00",
  "created_by": "developer@example.com",
  "organization_id": "67e0b12c4d8a3f005b21c9e4",
  "app_type": "user_app",
  "name": "My CRM",
  "user_description": "A CRM to track leads and deals",
  "logo_url": "https://storage.base44.com/6820f3a4e7b91d003c45a1f2/3f2504e0_logo.png",
  "social_image_url": "https://storage.base44.com/6820f3a4e7b91d003c45a1f2/7c9e6679_social.png",
  "public_settings": "public_with_login",
  "auth_config": {
    "enable_username_password": true,
    "enable_google_login": true,
    "enable_microsoft_login": false,
    "enable_facebook_login": false,
    "enable_apple_login": false
  },
  "hide_entity_created_by": true,
  "is_remixable": false,
  "main_branch_protected": false,
  "slug": "my-crm-3c45a1f2",
  "is_unpublished": false,
  "last_deployed_at": "2026-08-02T14:30:00",
  "screenshot_url": "https://storage.base44.com/screenshots/6820f3a4e7b91d003c45a1f2.png",
  "preview_screenshot_url": "https://storage.base44.com/previews/6820f3a4e7b91d003c45a1f2.png",
  "owner_id": "6706af53b9c1e2004a37d85f",
  "status": {
    "state": "ready",
    "details": "Publishing app",
    "request_id": "a1b2c3d4e5f67890abcdef12",
    "last_updated_date": "2026-08-02T14:30:00Z",
    "error_source": "build",
    "paywall_context": {
      "billing_organization_id": "67e0b12c4d8a3f005b21c9e4",
      "user_id": "6706af53b9c1e2004a37d85f",
      "evaluated_at": "2026-08-02T14:30:00Z"
    }
  },
  "dev_environment_enabled": false
}

{
  "error": {
    "code": "not_found",
    "message": "App not found",
    "details": {}
  }
}

Code and sandbox

Redeploy a backend function

This API is in beta. Endpoints, fields, and behavior may still change, so avoid depending on it in production.

Deploys the code you send as one of the app’s backend functions and saves it as that function’s source, the same way Save & Redeploy does in the app editor.

The function is deployed from the code in the request, not from the source already stored in the app. To redeploy a function unchanged, send its current source. The deploy runs even when the code is identical, which is how you recover a function whose deployment is missing or out of date. A name that no function has yet creates a new function.

The request waits for the deploy to finish, and fails with the compiler’s diagnostics when the code doesn’t build. An app runs one deploy at a time. If another deploy for the app is still running after a short wait, the call is rejected and is safe to retry.

Backend functions need a Builder plan or higher on the app’s workspace. If the app has no backend functions yet, the first redeploy sets them up.

The deploy always lands on the app’s main line, and is rejected while main is protected.

The published app keeps running the previous version of the function until you publish the app again. Automations and workflows run the redeployed version right away.

This is limited to 50 requests a minute per caller for each app. Some workspaces have a different limit.

The response is the app document as it stands after the change, the same shape Get app returns.

This endpoint accepts a personal API key belonging to a user with editor access to the app. A read-only key is refused, and workspace API keys are not accepted.

The response includes fields beyond the ones documented here. Don’t rely on undocumented response fields, as they can change at any time. Send only the fields documented here. Other request fields are not supported and their behavior can change.

POST

api

apps

{app_id}

coding

redeploy-function

{function_name}

Redeploy a backend function

curl --request POST \
  --url https://app.base44.com/api/apps/{app_id}/coding/redeploy-function/{function_name} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "code": "Deno.serve(async (req) => {\n  return Response.json({ ok: true });\n});\n"
}
'

import requests

url = "https://app.base44.com/api/apps/{app_id}/coding/redeploy-function/{function_name}"

payload = { "code": "Deno.serve(async (req) => {
  return Response.json({ ok: true });
});
" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    code: 'Deno.serve(async (req) => {\n  return Response.json({ ok: true });\n});\n'
  })
};

fetch('https://app.base44.com/api/apps/{app_id}/coding/redeploy-function/{function_name}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://app.base44.com/api/apps/{app_id}/coding/redeploy-function/{function_name}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'code' => 'Deno.serve(async (req) => {
  return Response.json({ ok: true });
});
'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://app.base44.com/api/apps/{app_id}/coding/redeploy-function/{function_name}"

	payload := strings.NewReader("{\n  \"code\": \"Deno.serve(async (req) => {\\n  return Response.json({ ok: true });\\n});\\n\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://app.base44.com/api/apps/{app_id}/coding/redeploy-function/{function_name}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"code\": \"Deno.serve(async (req) => {\\n  return Response.json({ ok: true });\\n});\\n\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.base44.com/api/apps/{app_id}/coding/redeploy-function/{function_name}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"code\": \"Deno.serve(async (req) => {\\n  return Response.json({ ok: true });\\n});\\n\"\n}"

response = http.request(request)
puts response.read_body

{
  "id": "6820f3a4e7b91d003c45a1f2",
  "created_date": "2026-08-01T09:15:00",
  "updated_date": "2026-08-02T14:30:00",
  "created_by": "developer@example.com",
  "organization_id": "67e0b12c4d8a3f005b21c9e4",
  "app_type": "user_app",
  "name": "My CRM",
  "user_description": "A CRM to track leads and deals",
  "logo_url": "https://storage.base44.com/6820f3a4e7b91d003c45a1f2/3f2504e0_logo.png",
  "social_image_url": "https://storage.base44.com/6820f3a4e7b91d003c45a1f2/7c9e6679_social.png",
  "public_settings": "public_with_login",
  "auth_config": {
    "enable_username_password": true,
    "enable_google_login": true,
    "enable_microsoft_login": false,
    "enable_facebook_login": false,
    "enable_apple_login": false
  },
  "hide_entity_created_by": true,
  "is_remixable": false,
  "main_branch_protected": false,
  "slug": "my-crm-3c45a1f2",
  "is_unpublished": false,
  "last_deployed_at": "2026-08-02T14:30:00",
  "screenshot_url": "https://storage.base44.com/screenshots/6820f3a4e7b91d003c45a1f2.png",
  "preview_screenshot_url": "https://storage.base44.com/previews/6820f3a4e7b91d003c45a1f2.png",
  "owner_id": "6706af53b9c1e2004a37d85f",
  "status": {
    "state": "ready",
    "details": "Publishing app",
    "request_id": "a1b2c3d4e5f67890abcdef12",
    "last_updated_date": "2026-08-02T14:30:00Z",
    "error_source": "build",
    "paywall_context": {
      "billing_organization_id": "67e0b12c4d8a3f005b21c9e4",
      "user_id": "6706af53b9c1e2004a37d85f",
      "evaluated_at": "2026-08-02T14:30:00Z"
    }
  },
  "dev_environment_enabled": false
}

{
  "error": {
    "code": "not_found",
    "message": "App not found",
    "details": {}
  }
}

Authorizations

Authorization

string

header

required

Personal access token, sent as Authorization: Bearer <token>. Each operation lists the permission it needs: read_only or full_access. A full-access token can call every operation. A read-only token can call only the operations that list read_only; anything else returns 403 read_only_credential_route_not_allowed.

Path Parameters

function_name

string

required

Name of the backend function, as a path under functions/. Send the bare name, the name with its file extension, or the name followed by /entry.ts. Nested functions have slashes in their name, and you send those as they are.

app_id

string

required

ID of the app whose code to change.

Body

application/json

code

string

required

Full source of the function to deploy and save.

Example:

"Deno.serve(async (req) => {\n return Response.json({ ok: true });\n});\n"

Response

The app after the deploy.

string

ID of the app.

Example:

"6820f3a4e7b91d003c45a1f2"

created_date

string<date-time>

Time the app was created, as a UTC timestamp in ISO 8601 format.

Example:

"2026-08-01T09:15:00"

updated_date

string<date-time>

Time the app document was last written, as a UTC timestamp in ISO 8601 format.

Example:

"2026-08-02T14:30:00"

created_by

string | null

Email of the user who created the app.

Example:

"developer@example.com"

organization_id

string | null

ID of the workspace the app belongs to.

Example:

"67e0b12c4d8a3f005b21c9e4"

app_type

string

default:user_app

Kind of app, set when it's created. One of user_app (a web app), user_agent (an AI agent), mobile_app (a native mobile app), user_game (a game), slide (a presentation), or imported_app (an app imported from an existing code repository). List apps returns it as stored, so an older agent app can report agent instead of user_agent, and some older apps don't include it. Get app always returns one of the values above.

Example:

"user_app"

name

string

default:untitled

Display name of the app.

Example:

"My CRM"

user_description

string | null

Description of the app, or null if none was set. An app created without a name gets a generated description once a build turn changes it.

Example:

"A CRM to track leads and deals"

logo_url

string | null

URL of the app's logo, or null if it has none. Set it with Set app logo or Generate app logo.

Example:

"https://storage.base44.com/6820f3a4e7b91d003c45a1f2/3f2504e0_logo.png"

URL of the image shown when the app is shared on social platforms, or null if none was set, in which case the logo is shown instead. Set it with Set social image.

Example:

"https://storage.base44.com/6820f3a4e7b91d003c45a1f2/7c9e6679_social.png"

public_settings

enum<string>

default:public_with_login

Who can open the published app. Each value is described under Update app, which also changes it.

Available options:

private_with_login,

public_with_login,

public_without_login,

workspace_with_login

Example:

"public_with_login"

auth_config

AuthConfiguration · object

Which login methods the app's login page offers. If the workspace enforces SSO for apps, the login page offers only SSO, whatever these are set to. Change them with Update app.

Show child attributes

hide_entity_created_by

boolean

default:false

Whether the app's entity records leave out the email of the user who created each one (created_by). Newer apps always leave the email out, whatever this is set to.

Example:

true

is_remixable

boolean

default:false

Whether others can remix the app. While it's true, the published app also shows the Base44 badge if public_settings is public_with_login or public_without_login.

Example:

false

main_branch_protected

boolean

default:false

Whether the app's main branch is protected, so changes to main must go through a branch that's merged back. Always true for imported apps. Change it with Set main branch protection.

Example:

false

slug

string | null

URL slug for the app, auto generated from the name and app ID or set to a custom value, or null if the app has no slug yet. The published URL is built from it.

Example:

"my-crm-3c45a1f2"

is_unpublished

boolean

default:false

Whether the app was taken offline with Unpublish app and hasn't been published again since. While it's true, the published URL is offline and last_deployed_at still shows the last publish.

Example:

false

last_deployed_at

string<date-time> | null

Time the app was last published, as a UTC timestamp in ISO 8601 format, or null if it has never been published.

Example:

"2026-08-02T14:30:00"

screenshot_url

string | null

URL of a screenshot of the published app. Captured shortly after each publish, so it can briefly lag or be null right after publishing.

Example:

"https://storage.base44.com/screenshots/6820f3a4e7b91d003c45a1f2.png"

preview_screenshot_url

string | null

URL of a preview screenshot taken before publishing, distinct from screenshot_url, or null if none has been captured.

Example:

"https://storage.base44.com/previews/6820f3a4e7b91d003c45a1f2.png"

owner_id

string | null

ID of the user who owns the app. It starts as the creator and changes when ownership is transferred.

Example:

"6706af53b9c1e2004a37d85f"

status

StatusObject · object

The app's current build status. Poll while a build is in progress to watch it finish. This tracks building, not publishing.

Show child attributes

dev_environment_enabled

boolean

default:false

Whether test data is on, which gives the app a test database next to its live one.

Example:

false

Base44 APIs

Apps API (Beta)

Workspace API (Beta)

Superagents API (Beta)

Monitoring API

Audit Logs API

Redeploy a backend function

Authorizations

Path Parameters

Body

Response