MySQL throws ER_INVALID_JSON_TEXT_IN_PARAM (SQLSTATE 22032) when a value passed to a JSON function cannot be parsed as valid JSON.
MySQL error 3141 ER_INVALID_JSON_TEXT_IN_PARAM occurs when the string you pass to a JSON function is not valid JSON. Validate or quote the input with JSON_QUOTE, or store it in a native JSON column to resolve the error.
ER_INVALID_JSON_TEXT_IN_PARAM
Error 3141 signifies that MySQL attempted to parse a string as JSON but failed. The server raises SQLSTATE 22032 and stops the statement so that incorrect data never enters the database.
The error appears only when you invoke JSON-aware functions or operators, such as JSON_EXTRACT, JSON_SET, or the -> operator. It was first introduced in MySQL 5.7.8 when native JSON support became available.
The most common trigger is malformed JSON text - missing braces, unescaped characters, or trailing commas. MySQL validates every JSON argument rigorously and halts on the first violation.
Another frequent cause is passing a plain string column to a JSON function without quoting it. Even a correctly formatted snippet like {id:1} fails because keys must be wrapped in double quotes under the JSON standard.
Validate the JSON before it reaches MySQL. Use IS_JSON or JSON_VALID in a CHECK constraint or run the value through JSON_QUOTE in the query.
If the data is user-supplied, escape special characters on the application side. When possible, move the data to a native JSON column so MySQL can guarantee its validity on INSERT or UPDATE.
Trailing comma: {"id":1,} triggers 3141. Remove the extra comma or enable the STRICT_TRANS_TABLES SQL mode for better diagnostics.
Unescaped quotes: {"title":"Tom's book"} fails. Escape the apostrophe or wrap the whole JSON string with JSON_QUOTE()
Always store JSON in columns defined as JSON. MySQL rejects invalid values automatically.
In transactional systems, add a BEFORE INSERT trigger that aborts when JSON_VALID(new.json_col) = 0.
ER_INVALID_JSON_TEXT: general invalid JSON error outside parameter context.
ER_WRONG_VALUE_FOR_TYPE: raised when a string is stored in a JSON column with STRICT mode off.
Missing braces, brackets, or quotes break JSON parsing and trigger error 3141.
Columns that hold varchar data are often mistaken for JSON but lack proper formatting.
Unescaped newlines, tabs, or quotes inside the string invalidate the JSON document.
Commas after the last element in an object or array are not allowed in strict JSON and cause the error.
Raised when MySQL finds invalid JSON outside function parameters, such as during INSERT into a JSON column.
Indicates an illegal character in a JSON document, often caused by control characters.
General type-conversion error that can appear when strict mode is disabled and JSON text is malformed.
No. MySQL always validates JSON for JSON functions. The only option is to avoid calling those functions.
Use JSON_QUOTE, not the plain QUOTE function. JSON_QUOTE escapes internal quotes and backslashes correctly.
JSON_VALID works on the literal you pass. If you later concatenate or alter the string, it may become invalid before reaching the function.
Galaxy's SQL editor highlights invalid JSON fragments in real time and offers AI suggestions to wrap values with JSON_QUOTE, reducing runtime errors.
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