Parsing complex JSON using Kinesis Analytics - amazon-web-services

I have the following JSON stream coming from Twitter.
{
"created_at": "Thu Sep 27 21:02:00 +0000 2018",
"id": 1045418301336244224,
"id_str": "1045418301336244224",
"text": "Conditional Branching Now Supported in AWS Systems Manager Automation - #awscloud #amazon #aws",
"source": "Buffer",
"truncated": false,
"in_reply_to_status_id": null,
"in_reply_to_status_id_str": null,
"in_reply_to_user_id": null,
"in_reply_to_user_id_str": null,
"in_reply_to_screen_name": null,
"user": {
"id": 14687423,
"id_str": "14687423",
"name": "Casey Becking",
"screen_name": "caseybecking",
"location": "Huntington Beach, CA",
"url": "http://caseybecking.com",
"description": "I do stuff with computers for #rackspace , geek at heart! play and watch to much hockey, someday I'll make a personal website.",
"translator_type": "none",
"protected": false,
"verified": false,
"followers_count": 4191,
"friends_count": 2412,
"listed_count": 90,
"favourites_count": 794,
"statuses_count": 12995,
"created_at": "Wed May 07 15:03:23 +0000 2008",
"utc_offset": null,
"time_zone": null,
"geo_enabled": true,
"lang": "en",
"contributors_enabled": false,
"is_translator": false,
"profile_background_color": "000000",
"profile_background_image_url": "http://abs.twimg.com/images/themes/theme15/bg.png",
"profile_background_image_url_https": "https://abs.twimg.com/images/themes/theme15/bg.png",
"profile_background_tile": false,
"profile_link_color": "ABB8C2",
"profile_sidebar_border_color": "000000",
"profile_sidebar_fill_color": "000000",
"profile_text_color": "000000",
"profile_use_background_image": false,
"profile_image_url": "http://pbs.twimg.com/profile_images/981617292546060289/RMX0GQFe_normal.jpg",
"profile_image_url_https": "https://pbs.twimg.com/profile_images/981617292546060289/RMX0GQFe_normal.jpg",
"profile_banner_url": "https://pbs.twimg.com/profile_banners/14687423/1439137746",
"default_profile": false,
"default_profile_image": false,
"following": null,
"follow_request_sent": null,
"notifications": null
},
"geo": null,
"coordinates": null,
"place": null,
"contributors": null,
"is_quote_status": false,
"quote_count": 0,
"reply_count": 0,
"retweet_count": 0,
"favorite_count": 0,
"entities": {
"hashtags": [{
"text": "amazon",
"indices": [106, 113]
}, {
"text": "aws",
"indices": [114, 118]
}],
"urls": [{
"url": "",
"expanded_url": "https://buff.ly/2zwRyBx",
"display_url": "buff.ly/2zwRyBx",
"indices": [72, 95]
}],
"user_mentions": [{
"screen_name": "awscloud",
"name": "Amazon Web Services",
"id": 66780587,
"id_str": "66780587",
"indices": [96, 105]
}],
"symbols": []
},
"favorited": false,
"retweeted": false,
"possibly_sensitive": false,
"filter_level": "low",
"lang": "en",
"timestamp_ms": "1538082120628",
"emoticons": [],
"sentiments": "Neutral"
}
How do I parse, analyze and process this JSON using Kinesis Analytics?
The arrays should be flattened and this is very doable in Hive but need to do the same in Kinesis Analytics.

Related

Egrep special expressions like \w in bracket expressions []

I am trying to use extended grep to extract data from a JSON. The regex I use is functional on my regexr instance, but for some reason it doesn't work in bash.
I tried many things, notably the bare double dash and various minor edits to the regex for escaping.
#!/bin/bash
networks='{ "networks": [ { "admin_state_up": true, "availability_zone_hints": [], "availability_zones": [], "created_at": "2019-03-12T23:45:13Z", "description": "", "id": "7188504a-72cb-4590-a9b0-414732017837", "ipv4_address_scope": null, "ipv6_address_scope": null, "is_default": false, "mtu": 1450, "name": "BLUE", "port_security_enabled": true, "project_id": "187d635aec4c43fe8e8918afb3a5c82e", "provider:network_type": "vxlan", "provider:physical_network": null, "provider:segmentation_id": 86, "revision_number": 2, "router:external": false, "shared": false, "status": "ACTIVE", "subnets": [], "tags": [], "tenant_id": "187d635aec4c43fe8e8918afb3a5c82e", "updated_at": "2019-03-12T23:45:13Z" }, { "admin_state_up": true, "availability_zone_hints": [], "availability_zones": [], "created_at": "2019-03-12T23:45:13Z", "description": "", "id": "ed82083f-0a7c-4322-a4fb-de8db23e2bae", "ipv4_address_scope": null, "ipv6_address_scope": null, "is_default": false, "mtu": 1450, "name": "RED", "port_security_enabled": true, "project_id": "187d635aec4c43fe8e8918afb3a5c82e", "provider:network_type": "vxlan", "provider:physical_network": null, "provider:segmentation_id": 108, "revision_number": 2, "router:external": false, "shared": false, "status": "ACTIVE", "subnets": [], "tags": [], "tenant_id": "187d635aec4c43fe8e8918afb3a5c82e", "updated_at": "2019-03-12T23:45:13Z" }, { "admin_state_up": true, "availability_zone_hints": [], "availability_zones": [], "created_at": "2019-03-12T23:45:13Z", "description": "", "id": "1eb6647e-869e-4e83-9468-43e2c320bccc", "ipv4_address_scope": null, "ipv6_address_scope": null, "is_default": false, "mtu": 1450, "name": "public", "port_security_enabled": true, "project_id": "187d635aec4c43fe8e8918afb3a5c82e", "provider:network_type": "vxlan", "provider:physical_network": null, "provider:segmentation_id": 32, "revision_number": 2, "router:external": false, "shared": false, "status": "ACTIVE", "subnets": [], "tags": [], "tenant_id": "187d635aec4c43fe8e8918afb3a5c82e", "updated_at": "2019-03-12T23:45:13Z" } ] }'
result=`echo $networks | grep -oE '"(id|name)": "([\w+-]+)"'`
echo $result
The aforementioned code doesn't work but if I switch to the following regex, it works. I just need to add extraction for id field too to be able to extract ids and names using \2 back reference (group 2)
grep -oE '"(id|name)": "(\w+)"'
Can you help me understand why the script doesn't work?
Full formatted JSON
{
"networks": [{
"admin_state_up": true,
"availability_zone_hints": [],
"availability_zones": [],
"created_at": "2019-03-12T23:45:13Z",
"description": "",
"id": "7188504a-72cb-4590-a9b0-414732017837",
"ipv4_address_scope": null,
"ipv6_address_scope": null,
"is_default": false,
"mtu": 1450,
"name": "BLUE",
"port_security_enabled": true,
"project_id": "187d635aec4c43fe8e8918afb3a5c82e",
"provider:network_type": "vxlan",
"provider:physical_network": null,
"provider:segmentation_id": 86,
"revision_number": 2,
"router:external": false,
"shared": false,
"status": "ACTIVE",
"subnets": [],
"tags": [],
"tenant_id": "187d635aec4c43fe8e8918afb3a5c82e",
"updated_at": "2019-03-12T23:45:13Z"
}, {
"admin_state_up": true,
"availability_zone_hints": [],
"availability_zones": [],
"created_at": "2019-03-12T23:45:13Z",
"description": "",
"id": "ed82083f-0a7c-4322-a4fb-de8db23e2bae",
"ipv4_address_scope": null,
"ipv6_address_scope": null,
"is_default": false,
"mtu": 1450,
"name": "RED",
"port_security_enabled": true,
"project_id": "187d635aec4c43fe8e8918afb3a5c82e",
"provider:network_type": "vxlan",
"provider:physical_network": null,
"provider:segmentation_id": 108,
"revision_number": 2,
"router:external": false,
"shared": false,
"status": "ACTIVE",
"subnets": [],
"tags": [],
"tenant_id": "187d635aec4c43fe8e8918afb3a5c82e",
"updated_at": "2019-03-12T23:45:13Z"
}, {
"admin_state_up": true,
"availability_zone_hints": [],
"availability_zones": [],
"created_at": "2019-03-12T23:45:13Z",
"description": "",
"id": "1eb6647e-869e-4e83-9468-43e2c320bccc",
"ipv4_address_scope": null,
"ipv6_address_scope": null,
"is_default": false,
"mtu": 1450,
"name": "public",
"port_security_enabled": true,
"project_id": "187d635aec4c43fe8e8918afb3a5c82e",
"provider:network_type": "vxlan",
"provider:physical_network": null,
"provider:segmentation_id": 32,
"revision_number": 2,
"router:external": false,
"shared": false,
"status": "ACTIVE",
"subnets": [],
"tags": [],
"tenant_id": "187d635aec4c43fe8e8918afb3a5c82e",
"updated_at": "2019-03-12T23:45:13Z"
}]
}
According to man grep:
The Backslash Character and Special Expressions
The symbol \w is a synonym for [[:alnum:]] and \W is a synonym for [^[:alnum:]]. ... A bracket expression is a list of characters enclosed by [ and ]. ... To include a literal ] place it first in the list. Similarly, to include a literal ^ place it anywhere but first. Finally, to include a literal - place it last.
Basically, \w is literally replaced by those characters when evaluated, giving you "([[[:alnum:]]+-]+)", which in a US standard locale gives you "([[a-zA-Z0-9]+-]+)".
Since a bracket expression is truncated by the first ] it sees (unless it is the first element of a bracket expression), the group is only [[[:alnum:]]+, or "1 or more of a digit, letter, and [. This expression is followed by -]+, meaning "exactly one hyphen and one or more ]". This is obviously pretty terrible.
If you try
echo $networks | grep -oE '"(id|name)": "([[:alnum:]+-]+)"'
I.e., \w without the outer bracket expression, the relevant part means "a group (surrounded by ") comprised of one or more digits, letters, hyphens, and plus signs", which outputs:
"id": "7188504a-72cb-4590-a9b0-414732017837"
"name": "BLUE"
"id": "ed82083f-0a7c-4322-a4fb-de8db23e2bae"
"name": "RED"
"id": "1eb6647e-869e-4e83-9468-43e2c320bccc"
"name": "public"
Using PERL (-P) instead of Extended (-E) regexp, looks like the \w is interpreted as expected, without escaping issue: note the -oP
result=$( echo $networks | grep -oP '"(id|name)": "([\w+-]+)"' ) ;
echo $result
"id": "7188504a-72cb-4590-a9b0-414732017837" "name": "BLUE" "id": "ed82083f-0a7c-4322-a4fb-de8db23e2bae" "name": "RED" "id": "1eb6647e-869e-4e83-9468-43e2c320bccc" "name": "public"
As a workaround (it does not resolve the "escaping \w issue)
result=$( echo $networks | grep -oE '"(id|name)": "([a-zA-Z_+-]+)"' ) ;
echo $result
Prints me:
"name": "BLUE" "name": "RED" "name": "public"
Note: prefer using $( ) syntax to execute sub shells rather than the backtick.

NaN userId while setting userContext loopback

I have a model UserB2b extended from User. I have enabled authorization using server.authEnabled in the boot script so that all requests pass through the auth middleware.
Problem: Whenever I have an non-numeric username in my UserB2b model, I get a NaN userId from AccessToken.findForRequest in loopback/common/model/access-token.js.
Here are my models.
AccessToken
{
"name": "AccessToken",
"base": "AccessToken",
"idInjection": false,
"options": {
"validateUpsert": true
},
"mysql": {
"table": "AccessToken"
},
"properties": {
"ttl": {
"type": "Number",
"required": false,
"length": null,
"precision": 10,
"scale": 0,
"mysql": {
"columnName": "ttl",
"dataType": "int",
"dataLength": null,
"dataPrecision": 10,
"dataScale": 0,
"nullable": "Y"
},
"_selectable": true
},
"created": {
"type": "Date",
"required": false,
"length": null,
"precision": null,
"scale": null,
"mysql": {
"columnName": "created",
"dataType": "datetime",
"dataLength": null,
"dataPrecision": null,
"dataScale": null,
"nullable": "Y"
},
"_selectable": true
},
"userId": {
"type": "String",
"required": false,
"length": null,
"precision": 10,
"scale": 0,
"mysql": {
"columnName": "userId",
"dataType": "varchar",
"dataLength": null,
"dataPrecision": 10,
"dataScale": 0,
"nullable": "Y"
},
"_selectable": true
},
"id": {
"type": "String",
"id": true,
"required": false,
"length": 255,
"precision": null,
"scale": null,
"mysql": {
"columnName": "id",
"dataType": "varchar",
"dataLength": 255,
"dataPrecision": null,
"dataScale": null,
"nullable": "N"
},
"_selectable": false
},
"model": {
"type": "string",
"id": false,
"length": 100,
"precision": null,
"scale": null,
"mysql": {
"columnName": "model",
"dataType": "varchar",
"dataLength": 100,
"dataPrecision": null,
"dataScale": null,
"nullable": "N"
},
"_selectable": false
}
},
"validations": [],
"relations": {
"userB2B":{
"type":"belongsTo",
"model":"UserB2b",
"foreignKey":"userId"
}
},
"acls": [
{
"accessType": "*",
"principalType": "ROLE",
"principalId": "$everyone",
"permission": "DENY"
},
{
"accessType": "*",
"principalType": "ROLE",
"principalId":"$authenticated",
"permission": "ALLOW"
}
],
"methods": {}
}
UserB2b
{
"name": "UserB2b",
"base": "User",
"idInjection": false,
"options": {
"validateUpsert": true
},
"mysql": {
"table": "user_b2b"
},
"scope": {
"where": {
"deleted": 0
}
},
"properties": {
"username": {
"type": "String",
"id": true,
"required": true,
"length": 255,
"precision": null,
"scale": null,
"mysql": {
"columnName": "username",
"dataType": "varchar",
"dataLength": 255,
"dataPrecision": null,
"dataScale": null,
"nullable": "N"
},
"_selectable": false
},
"password": {
"type": "String",
"required": true,
"length": 1000,
"precision": null,
"scale": null,
"mysql": {
"columnName": "password",
"dataType": "varchar",
"dataLength": 1000,
"dataPrecision": null,
"dataScale": null,
"nullable": "N"
},
"_selectable": false
},
"name": {
"type": "String",
"required": true,
"length": 255,
"precision": null,
"scale": null,
"mysql": {
"columnName": "name",
"dataType": "varchar",
"dataLength": 255,
"dataPrecision": null,
"dataScale": null,
"nullable": "N"
},
"_selectable": false
},
"contactNumber": {
"type": "String",
"required": true,
"length": 255,
"precision": null,
"scale": null,
"mysql": {
"columnName": "contact_number",
"dataType": "varchar",
"dataLength": 255,
"dataPrecision": null,
"dataScale": null,
"nullable": "N"
},
"_selectable": false
},
"createdAt": {
"type": "Date",
"required": false,
"length": null,
"precision": null,
"scale": null,
"mysql": {
"columnName": "created_at",
"dataType": "timestamp",
"dataLength": null,
"dataPrecision": null,
"dataScale": null,
"nullable": "Y"
},
"_selectable": true
},
"updatedAt": {
"type": "Date",
"required": false,
"length": null,
"precision": null,
"scale": null,
"mysql": {
"columnName": "updated_at",
"dataType": "timestamp",
"dataLength": null,
"dataPrecision": null,
"dataScale": null,
"nullable": "Y"
},
"_selectable": true
},
"deleted": {
"type": "Number",
"required": false,
"length": null,
"precision": 3,
"scale": 0,
"mysql": {
"columnName": "deleted",
"dataType": "tinyint",
"dataLength": null,
"dataPrecision": 3,
"dataScale": 0,
"nullable": "Y"
},
"_selectable": true
},
"email": false,
"created": false,
"lastUpdated": false,
"credentials": false,
"challenges": false,
"status": false,
"verificationToken": false,
"realm": false,
"emailVerified": false
},
"validations": [],
"relations": {
"accessTokens": {
"type": "hasMany",
"model": "Accesstoken",
"foreignKey": "userName"
}
},
"methods": {}
}
Here is the raw packet that I get from the debugger
<-- RowDataPacket
RowDataPacket {
id: 'BJVqc7CtRXzPVVtTyJqmUabijgLRRHBe3sqcCh0bh5NuGBIZCnY8nwLIGeB6dILv',
ttl: 12096000,
created: Tue May 24 2016 05:44:18 GMT+0000 (UTC),
model: 'UserB2b',
userId: 'max1' }
and the query that loopback fires after that is
SELECT `username`,`password`,`name`,`contact_number`,`created_at`,`updated_at`,`deleted` FROM `user_b2b` WHERE (`username`=?) AND (`deleted`=?) ORDER BY `username` LIMIT 1, params: ["NaN",0]
Is there something that needs to be corrected here ?
it seems something wrong here in your access token:
"userId": {
"type": "String",
"required": false,
"length": null,
"precision": 10,
"scale": 0,
"mysql": {
"columnName": "userId",
"dataType": "int",
The type you are using int and you are passing as varchar item and this will throw exception that string is not a number(NAN).
Either change the target type to string/varchar or change the source data type that you are using that matched with target.
Hope this will help you.

Converting a json looking simple value string to a ColdFusion structure

I do the following in ColdFusion script:
svc = new http();
svc.setMethod('post');
svc.setCharset('utf-8');
svc.setUrl('https://api.stripe.com/v1/charges');
svc.addParam(type='header', name='Authorization', value='Bearer #Stripe.mySecretKey#');
svc.addParam(type='formfield', name='amount', value=form.amount);
svc.addParam(type='formfield', name='currency', value='usd');
svc.addParam(type='formfield', name='card', value='#form.card#');
svc.addParam(type='formfield', name='description', value='#form.email#');
prefix = svc.send().getPrefix();
response = prefix.FileContent;
WriteOutput(response & '<br>');
WriteOutput(IsSimpleValue(response) & '<br>');
WriteOutput(IsJSON(response));
dump(response);
And I'm getting a string that looks like this:
{ "id": "ch_6HAwRK92OsQPoA", "object": "charge", "created": 1432149035, "livemode": false, "paid": true, "status": "paid", "amount": 100, "currency": "usd", "refunded": false, "source": { "id": "card_6HAwNGtbdzFdq0", "object": "card", "last4": "4242", "brand": "Visa", "funding": "credit", "exp_month": 12, "exp_year": 2015, "fingerprint": "I2nSF7gS79j9Zhei", "country": "US", "name": null, "address_line1": null, "address_line2": null, "address_city": null, "address_state": null, "address_zip": null, "address_country": null, "cvc_check": "pass", "address_line1_check": null, "address_zip_check": null, "dynamic_last4": null, "metadata": {}, "customer": null }, "captured": true, "card": { "id": "card_6HAwNGtbdzFdq0", "object": "card", "last4": "4242", "brand": "Visa", "funding": "credit", "exp_month": 12, "exp_year": 2015, "fingerprint": "I2nSF7gS79j9Zhei", "country": "US", "name": null, "address_line1": null, "address_line2": null, "address_city": null, "address_state": null, "address_zip": null, "address_country": null, "cvc_check": "pass", "address_line1_check": null, "address_zip_check": null, "dynamic_last4": null, "metadata": {}, "customer": null }, "balance_transaction": "txn_6HAw4bAUUZ6trA", "failure_message": null, "failure_code": null, "amount_refunded": 0, "customer": null, "invoice": null, "description": "PhillipSenn#gmail.com", "dispute": null, "metadata": {}, "statement_descriptor": null, "fraud_details": {}, "receipt_email": null, "receipt_number": null, "shipping": null, "destination": null, "application_fee": null, "refunds": { "object": "list", "total_count": 0, "has_more": false, "url": "/v1/charges/ch_6HAwRK92OsQPoA/refunds", "data": [] } }
As well as "YES" and "YES".
If I do a DeserializeJSON(response), then I get a 500 error.
So, how do I put this simple value string, which looks like json, in a ColdFusion structure so that I can reference response.id and response.paid?
Something's wrong in your CF or web server setup.
I tested your json with CF11 on tryCF and it works.
<cfscript>
json = '{ "id": "ch_6HAwRK92OsQPoA", "object": "charge", "created": 1432149035, "livemode": false, "paid": true, "status": "paid", "amount": 100, "currency": "usd", "refunded": false, "source": { "id": "card_6HAwNGtbdzFdq0", "object": "card", "last4": "4242", "brand": "Visa", "funding": "credit", "exp_month": 12, "exp_year": 2015, "fingerprint": "I2nSF7gS79j9Zhei", "country": "US", "name": null, "address_line1": null, "address_line2": null, "address_city": null, "address_state": null, "address_zip": null, "address_country": null, "cvc_check": "pass", "address_line1_check": null, "address_zip_check": null, "dynamic_last4": null, "metadata": {}, "customer": null }, "captured": true, "card": { "id": "card_6HAwNGtbdzFdq0", "object": "card", "last4": "4242", "brand": "Visa", "funding": "credit", "exp_month": 12, "exp_year": 2015, "fingerprint": "I2nSF7gS79j9Zhei", "country": "US", "name": null, "address_line1": null, "address_line2": null, "address_city": null, "address_state": null, "address_zip": null, "address_country": null, "cvc_check": "pass", "address_line1_check": null, "address_zip_check": null, "dynamic_last4": null, "metadata": {}, "customer": null }, "balance_transaction": "txn_6HAw4bAUUZ6trA", "failure_message": null, "failure_code": null, "amount_refunded": 0, "customer": null, "invoice": null, "description": "PhillipSenn#gmail.com", "dispute": null, "metadata": {}, "statement_descriptor": null, "fraud_details": {}, "receipt_email": null, "receipt_number": null, "shipping": null, "destination": null, "application_fee": null, "refunds": { "object": "list", "total_count": 0, "has_more": false, "url": "/v1/charges/ch_6HAwRK92OsQPoA/refunds", "data": [] } }';
writeOutput(isJSon(json));
writeDump(DeserializeJSON(json));
</cfscript>
Run: http://trycf.com/gist/cb798ff697ac80396284/acf11

Notepad++ close non-whitespace

I have a Tweepy Stream Api json file that is included 33K tweets. All of them have non-whitespace space that I couldn't find solution. If you use copy and past it to pro.jsonlint.com, you can see that line 217 has "EOF" problem. I can fix them using notepad++ but first I need to understand that what is the problem and how I can fix it?
If somebody can tell me where is the EOF problem and how fix it with notepad++.
Thanks,
{
"created_at": "Tue Mar 31 20:50:08 +0000 2015",
"id": 583008398612029440,
"id_str": "583008398612029440",
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You need to match individual JSON objects, and I think you can just match them and copy wherever you need using this regex:
\{(?:[^{}]+|(?0))*\}
It works in Notepad++ 6.7.5, and it will select the text from the first { up to the corresponding closing }.

Twitter streaming API, where to find originator's name?

I am using Python to stream Twitter's Tweets via API. For example, the word "car" generates the following results:
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"id": 507683414255108096,
"id_str": "507683414255108096",
"text": "I put 'or nah' in my cousins car and Brenda & I are singing along a",
"source": "\u003ca href=\"http:\/\/www.cloudhopper.com\/\" rel=\"nofollow\"\u003eCloudhopper\u003c\/a\u003e",
"truncated": false,
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"user": {
"id": 84729292,
"id_str": "84729292",
"name": "Tracy Ochoa",
"screen_name": "TracyMayy",
"location": "",
"url": "http:\/\/whythefuckinfucknot.tumblr.com",
"description": "New York 16 Instagram - TracyMayy Tumblr - http:\/\/whythefuckinfucknot.tumblr.com http:\/\/ask.fm\/tracyochoa",
"protected": false,
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"created_at": "Sat Oct 24 00:42:23 +0000 2009",
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It looks to me the Twitter user who wrote this tweet has an id "507683414255108096", is there a way to export Twitter's API Tweets with the username of the actual Twitter users who write the corresponding Tweets?
If not through API, do I need to actually follow the people to get streams of Tweets with usernames? Or is there another way around?