ToxaZ opened a new issue #8861:
URL: https://github.com/apache/airflow/issues/8861
**Apache Airflow version**: 1.10.10
**What happened**:
Execution of HttpHook leads to error (on the API serverside):
```
{"Error":"Could not read JSON: Unrecognized token 'format': was expecting
'null', 'true', 'false' or NaN\n at [Source:
org.apache.catalina.connector.CoyoteInputStream@50edfaf7; line: 1, column: 8];
nested exception is org.codehaus.jackson.JsonParseException: Unrecognized token
'format': was expecting 'null', 'true', 'false' or NaN\n at [Source:
org.apache.catalina.connector.CoyoteInputStream@50edfaf7; line: 1, column: 8]"}
```
The reason was providing `dict` instead of `JSON formatted str`
**What you expected to happen**:
Currently HttpHook.run
[provides](https://github.com/apache/airflow/blob/96697180d79bfc90f6964a8e99f9dd441789177c/airflow/hooks/http_hook.py#L93)
the following docstring:
```
:param data: payload to be uploaded or request parameters
:type data: **dict**
```
which is misleading since that would cause mentioned error, it should
actually be a `:type data: **json**`
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