Text empty · text.empty

Stable ID: text.empty · Evidence: observed

The message text is empty.

This validates the message text input; it does not establish a rule for optional media captions.

When it matches

Every field in a rule must match. Alternative rules are joined with OR. Codes below are JSON response fields, not inferred HTTP statuses.

• JSON error_code: 400.

Exact description:

Bad Request: message text is empty

See matching rules for parameter precedence and unknown or ambiguous results.

Illustrative methods: sendMessage, editMessageText.

Possible causes

• The text argument is absent or empty.

Before deciding what to do

Application decision: supply message text. Repeat request: after relevant change.

• Provide nonempty text appropriate for the selected method.

These are application choices. Errorgram does not retry, suppress the error, or change bot state.

Facts

This condition adds no extracted facts; result.facts is empty.

Example

Synthetic examples derived from the cited source.

API method: sendMessage.

{
  "ok": false,
  "error_code": 400,
  "description": "Bad Request: message text is empty"
}

Python

from errorgram import classify

response = {
    "ok": False,
    "error_code": 400,
    "description": "Bad Request: message text is empty",
}
result = classify(response, method='sendMessage')

assert result.id == 'text.empty'
print(result.entry["summary"])

JavaScript and TypeScript

import { classify } from "errorgram";

const response = {
  "ok": false,
  "error_code": 400,
  "description": "Bad Request: message text is empty"
};
const result = classify(response, { method: "sendMessage" });

if (result.status === "matched" && result.id === "text.empty") {
  console.log(result.entry.summary);
}

Framework names

Integration	Type or ID
Python	errorgram.TextEmpty
aiogram	errorgram.aiogram.TextEmpty extends TelegramBadRequest
grammY	EnrichedGrammyError with classification.id equal to text.empty

Enrichment is explicit and keeps framework catch compatibility. Follow the Python and aiogram guide or JavaScript, TypeScript, and grammY guide.

Evidence

• Recorded observation. sendMessage with empty text returned this description. Accessed 2026-09-16.
• Bot API 10.3 · telegram-bot-api/Client.cpp:12039–12052. Text-message construction rejects empty text before formatting. Revision e3e9dd8e5b3d7ab8537cd5a10dc31d5ffa8f82d1.
• Bot API 10.3 · telegram-bot-api/Client.cpp:13981–13993. sendMessage constructs its text with this helper. Revision e3e9dd8e5b3d7ab8537cd5a10dc31d5ffa8f82d1.
• Bot API 10.3 · telegram-bot-api/Client.cpp:13800–13803. Method validation errors are passed to the response normalizer. Revision e3e9dd8e5b3d7ab8537cd5a10dc31d5ffa8f82d1.
• Bot API 10.3 · telegram-bot-api/Client.cpp:165–205. Adds the code-specific prefix and lowercases only the initial character of ordinary messages. Revision e3e9dd8e5b3d7ab8537cd5a10dc31d5ffa8f82d1.

Source references identify the reviewed revision, not the first release that introduced this response.

Data and versions

Catalogue 0.1.0 · schema 1.0.0 · reviewed 2026-09-16.

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