LinkedIn Reactions

Add or remove reactions on LinkedIn posts programmatically.

Add Reaction

POST https://api.publora.com/api/v1/linkedin-reactions

Headers

Request Body

Reaction Types

Note: The reactionType parameter is case-insensitive — e.g., "like", "Like", and "LIKE" are all accepted.

Response (HTTP 201 Created)

{
  "success": true,
  "reaction": { ... },
  "urnTranslated": {
    "from": "urn:li:activity:7123456789012345678",
    "to": "urn:li:ugcPost:7123456789012345678"
  }
}

Note: Creating a reaction returns HTTP 201, not 200. The urnTranslated field is an object { from, to } showing the original and canonical URN when translation occurred (e.g., urn:li:activity:* translated to urn:li:ugcPost:*). It is absent/undefined when no translation was needed.

Examples

JavaScript (fetch)

const response = await fetch('https://api.publora.com/api/v1/linkedin-reactions', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'x-publora-key': 'YOUR_API_KEY'
  },
  body: JSON.stringify({
    postedId: 'urn:li:share:7123456789012345678',
    reactionType: 'LIKE',
    platformId: 'linkedin-Tz9W5i6ZYG'
  })
});
const data = await response.json();
console.log(data.success); // true

Python (requests)

import requests
 
response = requests.post(
    'https://api.publora.com/api/v1/linkedin-reactions',
    headers={
        'Content-Type': 'application/json',
        'x-publora-key': 'YOUR_API_KEY'
    },
    json={
        'postedId': 'urn:li:share:7123456789012345678',
        'reactionType': 'PRAISE',
        'platformId': 'linkedin-Tz9W5i6ZYG'
    }
)
print(response.json()['success'])

cURL

curl -X POST https://api.publora.com/api/v1/linkedin-reactions \
  -H "Content-Type: application/json" \
  -H "x-publora-key: YOUR_API_KEY" \
  -d '{
    "postedId": "urn:li:share:7123456789012345678",
    "reactionType": "LIKE",
    "platformId": "linkedin-Tz9W5i6ZYG"
  }'

Node.js (axios)

const axios = require('axios');
 
await axios.post(
  'https://api.publora.com/api/v1/linkedin-reactions',
  {
    postedId: 'urn:li:share:7123456789012345678',
    reactionType: 'EMPATHY',
    platformId: 'linkedin-Tz9W5i6ZYG'
  },
  { headers: { 'x-publora-key': 'YOUR_API_KEY' } }
);

Remove Reaction

DELETE https://api.publora.com/api/v1/linkedin-reactions

Request Body or Query Parameters

Note: Unlike creating a reaction, deleting does not require reactionType.

Response

{
  "success": true,
  "reaction": null,
  "urnTranslated": {
    "from": "urn:li:activity:7123456789012345678",
    "to": "urn:li:ugcPost:7123456789012345678"
  }
}

The reaction field contains the LinkedIn API response data, or null. The urnTranslated field follows the same format as the create response (object or absent).

Examples

JavaScript (fetch)

const response = await fetch('https://api.publora.com/api/v1/linkedin-reactions', {
  method: 'DELETE',
  headers: {
    'Content-Type': 'application/json',
    'x-publora-key': 'YOUR_API_KEY'
  },
  body: JSON.stringify({
    postedId: 'urn:li:share:7123456789012345678',
    platformId: 'linkedin-Tz9W5i6ZYG'
  })
});

Python (requests)

response = requests.delete(
    'https://api.publora.com/api/v1/linkedin-reactions',
    headers={
        'Content-Type': 'application/json',
        'x-publora-key': 'YOUR_API_KEY'
    },
    json={
        'postedId': 'urn:li:share:7123456789012345678',
        'platformId': 'linkedin-Tz9W5i6ZYG'
    }
)

cURL

curl -X DELETE "https://api.publora.com/api/v1/linkedin-reactions?postedId=urn:li:share:7123456789012345678&platformId=linkedin-Tz9W5i6ZYG" \
  -H "x-publora-key: YOUR_API_KEY"

Errors

Create Reaction Errors (POST)

Note: The 500 error response includes details and status fields: { "error": "Failed to create LinkedIn reaction", "details": { ... }, "status": <HTTP status> }. The details field contains the full LinkedIn API error response object, whose structure depends on what LinkedIn returns (e.g., it may include message, status, serviceErrorCode, etc.). The status field reflects the HTTP status code returned by the LinkedIn API.

Note: POSTing a reaction that already exists returns 409 with body { "error": "REACTION_ALREADY_EXISTS", "message": "A reaction already exists on this post. Delete it before applying '<TYPE>'.", "requestedReactionType": "<TYPE>" }. Publora cannot read your existing reaction type back (LinkedIn scope limitation), so the conflict is surfaced rather than silently overwritten. To change reaction type, remove the reaction first, then POST the new one.

Note: Error status codes from the LinkedIn API may be forwarded directly (e.g., 403, 429), so you may receive error codes other than those listed above.

Delete Reaction Errors (DELETE)

Note: The 500 error response includes details and status fields: { "error": "Failed to delete LinkedIn reaction", "details": { ... }, "status": <HTTP status> }. The details field contains the full LinkedIn API error response object, whose structure depends on what LinkedIn returns (e.g., it may include message, status, serviceErrorCode, etc.). The status field reflects the HTTP status code returned by the LinkedIn API.

Note: Error status codes from the LinkedIn API may be forwarded directly (e.g., 403, 429), so you may receive error codes other than those listed above.

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