# JSON File Input
**URL:** https://discuss.elastic.co/t/json-file-input/100916
**Category:** Logstash
**Created:** [September 18, 2017, 6:34pm UTC](https://discuss.elastic.co/t/json-file-input/100916 "2017-09-18T18:34:54Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@Pratiksha\_Tewary](https://discuss.elastic.co/u/Pratiksha_Tewary)
#### Post date: [September 18, 2017, 6:34pm UTC](https://discuss.elastic.co/t/json-file-input/100916/1 "2017-09-18T18:34:54Z")
Hi,
I am just trying to take in a JSON file and spit it out to the stdout. The pipeline starts and nothing happens after that. There are no error messages and no other movements. I have the following in my configuration file:
input {
file {
type =\> "json"
path =\> "/opt/bin/samplejson\_single.json"
start\_position =\> "beginning"
sincedb\_path =\> "/dev/null"
}
}
filter {
json {
source =\> "message"
}
}
output {
stdout {}
}
---
### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [September 18, 2017, 10:44pm UTC](https://discuss.elastic.co/t/json-file-input/100916/2 "2017-09-18T22:44:49Z")
> [@Pratiksha\_Tewary](#):
>
> The pipeline starts and nothing happens after that.
Please show the command you are running and any applicable logs/output.
---
### Author:  [@Pratiksha\_Tewary](https://discuss.elastic.co/u/Pratiksha_Tewary)
#### Post date: [September 19, 2017, 1:21am UTC](https://discuss.elastic.co/t/json-file-input/100916/3 "2017-09-19T01:21:03Z")
The contents of samplejson\_single.json are:
{"prodId":"00583BE8-BE33-E011-BF97-001018721196","vendorName":"Omega","vendorId":"212770E7-E633-E011-BF97-001018721196","model":"DishStar®","categoryName":"Blender, Food, Countertop","fob":{"city":"Ft. Lauderdale","state":"FL","zip":"33331"},"spec":"Omega Blender, 48 oz. Tritan coopolyester BPA-Free container, toggle control with high/low speed, heavy duty locking ring, recessed coupling system, removable stainless steel blade assembly, silver, 1 HP, 600 watts, CE, ETL","listPrice":164.0,"netPrice":0.0,"numPerCase":1,"sellingUnit":"ea","shippingCube":0.0,"shippingWeight":7.0,"freightClass":"85","height":15.5,"width":8.0,"depth":7.0,"catalogItem":true,"multiplier":0,"hideModel":false,"callForPricing":false,"pictureId":"9B6AC60C-CF96-4858-BF6E-02A0F91E2FAA","cutSheetId":"D01FB5BA-A9E0-4B43-B4D4-568FED71A2BD","hasConfig":true,"configAccessories":"ZZOMEGASHIP1;ZZWARRANTY03;ZZOMEGAVLT02A01;ZZOMEGAVLT02A02A;","values":[{"property":"Motor HP","value":" 1 HP"},{"property":"Motor speed","value":"2-speed"},{"property":"Exterior Finish","value":"polycarbonate"},{"property":"Capacity","value":" 32 - 95 oz (1 - 2 qt)"},{"property":"Blender Type","value":"removable plastic container"}],"certifications":[{"text":"CE"},{"text":"ETL"}],"utils":{"electrical":[{"order":1,"amps":"","kw":".6","hp":"1","mca":"","mocp":"","voltage":"_","cycle":"_","nema":"","remarks":"","phase":"\*","electricalConnectionHeight":"","connectionType":""}]},"changeState":"added"}
---
### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [September 19, 2017, 1:42am UTC](https://discuss.elastic.co/t/json-file-input/100916/4 "2017-09-19T01:42:39Z")
Please don't post pictures of text, they are difficult to read and some people may not be even able to see them.
---
### Author:  [@Pratiksha\_Tewary](https://discuss.elastic.co/u/Pratiksha_Tewary)
#### Post date: [September 19, 2017, 3:21pm UTC](https://discuss.elastic.co/t/json-file-input/100916/5 "2017-09-19T15:21:10Z")
Sorry about that. I am new to discussion forums. Initially I was talking about Ubuntu Linux which I was running on my Virtual Machine (Virtualbox). Unfortunately, that has crashed. I have now installed Logstash on my original Windows environment. Following are the details of my trial:
**In Windows Powershell, I ran this command** :
.\bin\logstash -f grok\_trial.conf
**I got the following output** :
Sending Logstash's logs to C:/Users/prati/Desktop/ELK/logstash/logs which is now configured via log4j2.properties
[2017-09-19T11:10:26,223][INFO][logstash.modules.scaffold] Initializing module {:module\_name=\>"fb\_apache", :directory=\>"C:/Users/prati/Desktop/ELK/logstash/modules/fb\_apache/configuration"}
[2017-09-19T11:10:26,230][INFO][logstash.modules.scaffold] Initializing module {:module\_name=\>"netflow", :directory=\>"C:/Users/prati/Desktop/ELK/logstash/modules/netflow/configuration"}
[2017-09-19T11:10:26,712][INFO][logstash.pipeline] Starting pipeline {"id"=\>"main", "pipeline.workers"=\>4, "pipeline.batch.size"=\>125, "pipeline.batch.delay"=\>5, "pipeline.max\_inflight"=\>500}
[2017-09-19T11:10:27,046][INFO][logstash.pipeline] Pipeline main started
[2017-09-19T11:10:27,177][INFO][logstash.agent] Successfully started Logstash API endpoint {:port=\>9600}
**The contents of grok\_trial.conf are** :
input {
file {
path =\> ["C:\Users\prati\Desktop\CE\_Training\singlejson.json"]
start\_position =\> "beginning"
type =\> "json"
}
}
output {
stdout {
codec =\> "rubydebug"
}
}
**The contents of the file singlejson.json are** :
{"prodId":"00583BE8-BE33-E011-BF97-001018721196","vendorName":"Omega","vendorId":"212770E7-E633-E011-BF97-001018721196","model":"DishStar®","categoryName":"Blender, Food, Countertop","fob":{"city":"Ft. Lauderdale","state":"FL","zip":"33331"},"spec":"Omega Blender, 48 oz. Tritan coopolyester BPA-Free container, toggle control with high/low speed, heavy duty locking ring, recessed coupling system, removable stainless steel blade assembly, silver, 1 HP, 600 watts, CE, ETL","listPrice":164.0,"netPrice":0.0,"numPerCase":1,"sellingUnit":"ea","shippingCube":0.0,"shippingWeight":7.0,"freightClass":"85","height":15.5,"width":8.0,"depth":7.0,"catalogItem":true,"multiplier":0,"hideModel":false,"callForPricing":false,"pictureId":"9B6AC60C-CF96-4858-BF6E-02A0F91E2FAA","cutSheetId":"D01FB5BA-A9E0-4B43-B4D4-568FED71A2BD","hasConfig":true,"configAccessories":"ZZOMEGASHIP1;ZZWARRANTY03;ZZOMEGAVLT02A01;ZZOMEGAVLT02A02A;","values":[{"property":"Motor HP","value":" 1 HP"},{"property":"Motor speed","value":"2-speed"},{"property":"Exterior Finish","value":"polycarbonate"},{"property":"Capacity","value":" 32 - 95 oz (1 - 2 qt)"},{"property":"Blender Type","value":"removable plastic container"}],"certifications":[{"text":"CE"},{"text":"ETL"}],"utils":{"electrical":[{"order":1,"amps":"","kw":".6","hp":"1","mca":"","mocp":"","voltage":"","cycle":"","nema":"","remarks":"","phase":"\*","electricalConnectionHeight":"","connectionType":""}]},"changeState":"added"}
---
### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [September 20, 2017, 12:41am UTC](https://discuss.elastic.co/t/json-file-input/100916/6 "2017-09-20T00:41:24Z")
That all looks fine.
If you have processed the file before then you are likely running into `sincedb` being aware of that and not processing the file, even with the `before` directive. You may need to set the `sincedb` path to `NUL` to process the file.
---
### Author:  [@Pratiksha\_Tewary](https://discuss.elastic.co/u/Pratiksha_Tewary)
#### Post date: [September 29, 2017, 1:33pm UTC](https://discuss.elastic.co/t/json-file-input/100916/7 "2017-09-29T13:33:43Z")
Thanks, I fixed the problem by adding a sensible path for 'sincedb\_path' which logstash has permission to write to. Also, we need to make sure that the input file has an extra blank line at the end of the file. I don't know why this needs to be done (maybe Mark you can throw light on this) but it started working just fine when I did.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [October 27, 2017, 1:33pm UTC](https://discuss.elastic.co/t/json-file-input/100916/8 "2017-10-27T13:33:53Z")
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