dinesh sachdev created HTTPCLIENT-2253:
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Summary: HTTP 400 Bad Request - Apache HTTP Client - HTTP POST
JSON Message
Key: HTTPCLIENT-2253
URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2253
Project: HttpComponents HttpClient
Issue Type: Bug
Reporter: dinesh sachdev
For one of our projects, we faced issue where-in -
* We were utilizing Apache HTTP Client 4.5 and doing HTTP Post of JSON Message.
* This was resulting HTTP Response as
* {color:#FF0000}HTTP /1.1 400 Bad Request ... {color}
On analysis, we found that HTTP Post was failing just for Big JSON Files of
size greater then 7 MB. So, initially we thought it to be a server side issue.
But after further analysis we found that Unix CURL command was able to
successfully POST message to API. Thus, we came to know that something was
wrong with Scala (JAVA) client code that was using HTTP Client.
Solution -
* We further updated the code and used _java.net.\{HttpURLConnection, URL}_
instead of _org.apache.http.client.methods.\{HttpPost}_ and it worked fine for
us.
Even though, we specified below in code snippet -
val post = new HTTPPost("url")
post.setHeader("content-type", "application/json")
post.setEntity( new StringEntity("json"))
....
....
client.execute(post)
...
HTTP Header contains _Content-type:application/json._ But, StringEntity encodes
sequence of bytes with default encoding (ISO 8859-1) instead of
ContentType.APPLICATION_JSON, unless it is explicitly specified like below -
* _new_ _StringEntity(string, ContentType.APPLICATION_JSON)_
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