Hey there! I’ve worked with VK API extensively, and I get why you’re confused—VK’s official docs don’t explicitly mention "posters" because there’s no dedicated endpoint for creating them. But the good news is you can absolutely build this functionality using existing VK API capabilities. Here are the most practical solutions:

If your "poster" is a pre-made image (like a graphic with text, logos, etc.), this is the straightforward way to go. You’ll upload the image to VK’s servers and attach it to a wall post along with your desired text:

Step-by-Step Implementation #

• First, get an upload URL for wall photos using the photos.getWallUploadServer method. Make sure to specify the target group/user ID (add a minus sign before group IDs).
• Upload your poster image to that URL via a POST request.
• Save the uploaded image to VK’s storage with photos.saveWallPhoto, which returns the image’s unique identifiers.
• Finally, post the image and accompanying text to the wall using wall.post, passing the image as an attachment.

Example Code Snippet (Python) #

import requests

# Replace these with your actual credentials and IDs
ACCESS_TOKEN = "YOUR_VK_ACCESS_TOKEN"
TARGET_GROUP_ID = "-123456"  # Group ID with leading minus
POSTER_PATH = "your_poster_file.jpg"

# 1. Get upload URL
upload_url_res = requests.get(
    "https://api.vk.com/method/photos.getWallUploadServer",
    params={"access_token": ACCESS_TOKEN, "v": "5.131", "owner_id": TARGET_GROUP_ID}
)
upload_url = upload_url_res.json()["response"]["upload_url"]

# 2. Upload the poster image
with open(POSTER_PATH, "rb") as img_file:
    upload_res = requests.post(upload_url, files={"photo": img_file})
upload_data = upload_res.json()

# 3. Save image to VK
save_res = requests.get(
    "https://api.vk.com/method/photos.saveWallPhoto",
    params={
        "access_token": ACCESS_TOKEN,
        "v": "5.131",
        "owner_id": TARGET_GROUP_ID,
        "photo": upload_data["photo"],
        "server": upload_data["server"],
        "hash": upload_data["hash"]
    }
)
photo_details = save_res.json()["response"][0]

# 4. Post to wall with poster and text
post_res = requests.get(
    "https://api.vk.com/method/wall.post",
    params={
        "access_token": ACCESS_TOKEN,
        "v": "5.131",
        "owner_id": TARGET_GROUP_ID,
        "message": "Your poster's accompanying text here!",
        "attachments": f"photo{photo_details['owner_id']}_{photo_details['id']}"
    }
)

If you need a "poster" that’s a structured, dynamic card (with buttons, variable text, etc.), you can use VK’s wall templates:

• First, create a template in your VK group’s admin panel (under Settings → Message Templates). Design it to match your poster layout.
• Fetch the template’s ID using the templates.get API method.
• When posting, pass the template as an attachment in wall.post, along with any dynamic parameters you want to populate.

Note: This requires your group to have access to VK’s commercial features, and the template must comply with VK’s content guidelines.

If you need to create posters dynamically (e.g., inserting real-time data into a template image), do this:

• Use an image processing library (like Pillow for Python, sharp for Node.js) to generate the poster image directly in your script.
• Once the image is generated locally, follow the same upload-and-post workflow from Solution 1.

Key Tips to Avoid Issues #

• Ensure your access token has the photos and wall permissions enabled in the VK Developer Portal.
• Keep your poster image under 10MB (VK’s current file size limit) and use supported formats (JPG, PNG).
• For group posts, make sure the account linked to your token has posting permissions in the target group.

内容的提问来源于stack exchange，提问作者Vasin Yuriy