skyflow-js

skyflow-js

Skyflow’s Javascript SDK can be used to securely collect, tokenize, and reveal sensitive data in the browser without exposing your front-end infrastructure to sensitive data.

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Table of Contents

• Including Skyflow.js
• Initializing Skyflow.js
• Securely collecting data client-side
• Securely revealing data client-side

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Including Skyflow.js

Using script tag

<script src="https://js.skyflow.com/v1/index.js"></script>

Using npm

npm install skyflow-js

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Initializing Skyflow.js

Use the init() method to initialize a Skyflow client as shown below.

import Skyflow from "skyflow-js" // If using script tag, this line is not required

const skyflowClient = Skyflow.init({
   vaultID: "string",          //Id of the vault that the client should connect to 
   vaultURL: "string",         //URL of the vault that the client should connect to
   getBearerToken: helperFunc,  //helper function that retrieves a Skyflow bearer token from your backend
   options:{
     logLevel: Skyflow.LogLevel, // optional, if not specified default is ERROR 
     env: Skyflow.Env          // optional, if not specified default is PROD 
   }
})

For the getBearerToken parameter, pass in a helper function that retrieves a Skyflow bearer token from your backend. This function will be invoked when the SDK needs to insert or retrieve data from the vault. A sample implementation is shown below:

For example, if the response of the consumer tokenAPI is in the below format

{
   "accessToken": string,
   "tokenType": string
}

then, your getBearerToken Implementation should be as below

getBearerToken: () => {
  return new Promise((resolve, reject) => {
    const Http = new XMLHttpRequest();

    Http.onreadystatechange = () => {
      if (Http.readyState == 4) {
        if (Http.status == 200) {
          const response = JSON.parse(Http.responseText);
          resolve(response.accessToken);
        } else {
          reject("Error occured");
        }
      }
    };

    Http.onerror = (error) => {
      reject("Error occured");
    };

    const url = "https://api.acmecorp.com/skyflowToken";
    Http.open("GET", url);
    Http.send();
  })

}

For logLevel parameter, there are 4 accepted values in Skyflow.LogLevel

• DEBUG

  When Skyflow.LogLevel.DEBUG is passed, all level of logs will be printed(DEBUG, INFO, WARN, ERROR).

• INFO

  When Skyflow.LogLevel.INFO is passed, INFO logs for every event that has occurred during the SDK flow execution will be printed along with WARN and ERROR logs.

• WARN

  When Skyflow.LogLevel.WARN is passed, WARN and ERROR logs will be printed.

• ERROR

  When Skyflow.LogLevel.ERROR is passed, only ERROR logs will be printed.

Note:

• The ranking of logging levels is as follows : DEBUG < INFO < WARN < ERROR
• since logLevel is optional, by default the logLevel will be ERROR.

For env parameter, there are 2 accepted values in Skyflow.Env

• PROD

• DEV

  In Event Listeners, actual value of element can only be accessed inside the handler when the env is set to DEV.

Note:

• since env is optional, by default the env will be PROD.
• Use env option with caution, make sure the env is set to PROD when using skyflow-js in production.

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Securely collecting data client-side

• Inserting data into the vault
• Using Skyflow Elements to collect data
• Using validations on Collect Elements
• Event Listener on Collect Elements
• UI Error for Collect Eements
• Set and Clear value for Collect Elements (DEV ENV ONLY)
• Using Skyflow File Element to upload a file

Inserting data into the vault

To insert data into the vault from the browser, use the insert(records, options?) method of the Skyflow client. The records parameter takes a JSON object of the records to be inserted in the below format. The options parameter takes a dictionary of optional parameters for the insertion. See below:

const records = {
  "records": [
  	{
      table: "string", //table into which record should be inserted
      fields: {
        column1: "value", //column names should match vault column names
        //...additional fields here
      }
    }
    //...additional records here
  ]
}

const options = {
  tokens: true  //indicates whether or not tokens should be returned for the inserted data. Defaults to 'true'  
}

skyflowClient.insert(records, options={})

An example of an insert call:

skyflowClient.insert({
  "records": [
  {
    "table": "cards",
    "fields": {
      "cardNumber": "41111111111",
      "cvv": "123",
    }
  }]
});

The sample response:

{
  "records": [
    {
     "table": "cards",
     "fields":{
        "cardNumber": "f3907186-e7e2-466f-91e5-48e12c2bcbc1",
        "cvv": "1989cb56-63da-4482-a2df-1f74cd0dd1a5"
      }
    }
  ]
}

Using Skyflow Elements to collect data

Skyflow Elements provide developers with pre-built form elements to securely collect sensitive data client-side. These elements are hosted by Skyflow and injected into your web page as iFrames. This reduces your PCI compliance scope by not exposing your front-end application to sensitive data. Follow the steps below to securely collect data with Skyflow Elements on your web page.

Step 1: Create a container

First create a container for the form elements using the container(Skyflow.ContainerType) method of the Skyflow client as show below:

const container = skyflowClient.container(Skyflow.ContainerType.COLLECT)

Step 2: Create a collect Element

A Skyflow collect Element is defined as shown below:

const collectElement =  {
   table: "string",             //optional, the table this data belongs to
   column: "string",            //optional, the column into which this data should be inserted
   type: Skyflow.ElementType,   //Skyflow.ElementType enum
   inputStyles: {},             //optional styles that should be applied to the form element
   labelStyles: {},             //optional styles that will be applied to the label of the collect element
   errorTextStyles:{},          //optional styles that will be applied to the errorText of the collect element
   label: "string",             //optional label for the form element
   placeholder: "string",       //optional placeholder for the form element
   altText: "string"            //(DEPRECATED) string that acts as an initial value for the collect element
   validations:[]               // optional array of validation rules
}

The table and column fields indicate which table and column in the vault the Element corresponds to.

Note:

• Use dot delimited strings to specify columns nested inside JSON fields (e.g. address.street.line1)

The inputStyles field accepts a style object which consists of CSS properties that should be applied to the form element in the following states:

• base: all other variants inherit from these styles
• complete: applied when the Element has valid input
• empty: applied when the Element has no input
• focus: applied when the Element has focus
• invalid: applied when the Element has invalid input
• cardIcon: applied to the card type icon in CARD_NUMBER Element
• copyIcon: applied to copy icon in Elements when enableCopy option is true

Styles are specified with JSS.

An example of a inputStyles object:

inputStyles:{
    base: {
      border: "1px solid #eae8ee",
      padding: "10px 16px",
      borderRadius: "4px",
      color: "#1d1d1d",
    },
    complete: {
      color: "#4caf50",
    },
    empty: {},
    focus: {},
    invalid: {
      color: "#f44336",
    },
    cardIcon:{
      position: "absolute",
      left:"8px", 
      bottom:"calc(50% - 12px)"
    },
    copyIcon:{
      position: "absolute",
      right:"8px",
    }
  }

The states that are available for labelStyles are base and focus.

An example of a labelStyles object:

labelStyles: {
    base: {
      fontSize: "12px",
      fontWeight: "bold"
    },
    focus: {
      color: "#1d1d1d"
    }
}

The state that is available for errorTextStyles is only the base state, it shows up when there is some error in the collect element.

An example of a errorTextStyles object:

errorTextStyles: {
    base: {
      color: "#f44336"
    }
}

Finally, the type field takes a Skyflow ElementType. Each type applies the appropriate regex and validations to the form element. There are currently 8 types:

• CARDHOLDER_NAME
• CARD_NUMBER
• EXPIRATION_DATE
• EXPIRATION_MONTH
• EXPIRATION_YEAR
• CVV
• INPUT_FIELD
• PIN
• FILE_INPUT

The INPUT_FIELD type is a custom UI element without any built-in validations. See the section on validations for more information on validations.

Along with CollectElement we can define other options which takes a dictionary of optional parameters as described below:

const options = {
  required: false,  //optional, indicates whether the field is marked as required. Defaults to 'false'
  enableCardIcon: true, // optional, indicates whether card icon should be enabled (only applicable for CARD_NUMBER ElementType)
  format: String, //optional, format for the element (only applicable currently for EXPIRATION_DATE ElementType),
  enableCopy: false // optional, enables the copy icon in collect and reveal elements to copy text to clipboard. Defaults to 'false')
}

required parameter indicates whether the field is marked as required or not. If not provided, it defaults to false

enableCardIcon parameter indicates whether the icon is visible for the CARD_NUMBER element, defaults to true

format parameter takes string value and indicates the format pattern applicable to the element type, It's currently only applicable to EXPIRATION_DATE and EXPIRATION_YEAR element types.

enableCopy parameter indicates whether the copy icon is visible in collect and reveal elements.

The values that are accepted for EXPIRATION_DATE are

• MM/YY (default)
• MM/YYYY
• YY/MM
• YYYY/MM

The values that are accepted for EXPIRATION_YEAR are

• YY (default)
• YYYY

NOTE: If not specified or invalid value is passed to the format then it takes default value.

Once the Element object and options has been defined, add it to the container using the create(element, options) method as shown below. The element param takes a Skyflow Element object and options as defined above:

const collectElement =  {
   table: "string",             //the table this data belongs to
   column: "string",            //the column into which this data should be inserted
   type: Skyflow.ElementType,   //Skyflow.ElementType enum
   inputStyles: {},             //optional styles that should be applied to the form element
   labelStyles: {},             //optional styles that will be applied to the label of the collect element
   errorTextStyles:{},          //optional styles that will be applied to the errorText of the collect element
   label: "string",             //optional label for the form element
   placeholder: "string",       //optional placeholder for the form element
   altText: "string"            //(DEPRECATED) string that acts as an initial value for the collect element
   validations:[]               // optional array of validation rules
}

const options = {
  required: false,  //optional, indicates whether the field is marked as required. Defaults to 'false'
  enableCardIcon: true, // optional, indicates whether card icon should be enabled (only applicable for CARD_NUMBER ElementType)
  format: String, //optional, format for the element (only applicable currently for EXPIRATION_DATE ElementType)
  enableCopy: false // optional, enables the copy icon in collect and reveal elements to copy text to clipboard. Defaults to 'false')
}

const element = container.create(collectElement, options)

Step 3: Mount Elements to the DOM

To specify where the Elements will be rendered on your page, create placeholder <div> elements with unique id tags. For instance, the form below has 4 empty divs with unique ids as placeholders for 4 Skyflow Elements.

<form>
  <div id="cardNumber"/>
  <br/>
  <div id="expireDate"/>
  <br/> 
  <div id="cvv"/>
  <br/>
  <div id="pin"/>
  <button type="submit">Submit</button>
</form>

Now, when the mount(domElement) method of the Element is called, the Element will be inserted in the specified div. For instance, the call below will insert the Element into the div with the id "#cardNumber".

element.mount("#cardNumber")

you can use the unmount method to reset any collect element to it's initial state.

element.unmount();

Step 4: Collect data from Elements

When the form is ready to be submitted, call the collect(options?) method on the container object. The options parameter takes a dictionary of optional parameters as shown below:

• tokens: indicates whether tokens for the collected data should be returned or not. Defaults to 'true'
• additionalFields: Non-PCI elements data to be inserted into the vault which should be in the records object format as described in the above Inserting data into vault section.

const options = {
  tokens: true  //optional, indicates whether tokens for the collected data should be returned. Defaults to 'true'
  additionalFields: {  
    records: [
      {
        table: "string", //table into which record should be inserted
        fields: {
          column1: "value", //column names should match vault column names
          //...additional fields here
        }
      }
      //...additional records here
    ]
  } //optional
}

container.collect(options={})

End to end example of collecting data with Skyflow Elements

Sample Code:

//Step 1
const container = skyflowClient.container(Skyflow.ContainerType.COLLECT) 

//Step 2
const element = container.create({           
  table: "cards",
  column: "cardNumber",
  inputstyles: {
      base: {
        color: "#1d1d1d",
      },
      cardIcon:{
        position: "absolute",
        left:"8px", 
        bottom:"calc(50% - 12px)"
    },
  },
  labelStyles: {
      base: {
        fontSize: "12px",
        fontWeight: "bold"
      }
  },
  errorTextStyles: {
      base: {
        color: "#f44336"
      }
  },
  placeholder: "Card Number",
  label: "card_number",
  type: Skyflow.ElementType.CARD_NUMBER
})

// Step 3
element.mount("#cardNumber")  //assumes there is a div with id="#cardNumber" in the webpage

// Step 4

const nonPCIRecords = {
    "records": [
      {
        "table": "cards",
        "fields": {
          "gender": "MALE"
        }
      }
    ]
  }

container.collect({
  tokens: true,
  additionalFields: nonPCIRecords
})

Sample Response :

{
  "records": [
    {
      "table": "cards",
      "fields": {
        "cardNumber": "f3907186-e7e2-466f-91e5-48e12c2bcbc1",
        "gender": "12f670af-6c7d-4837-83fb-30365fbc0b1e"
      }
    }
  ]
}

Validations

Skyflow-JS provides two types of validations on Collect Elements

1. Default Validations:

Every Collect Element except of type INPUT_FIELD has a set of default validations listed below:

• CARD_NUMBER: Card number validation with checkSum algorithm(Luhn algorithm). Available card lengths for defined card types are [12, 13, 14, 15, 16, 17, 18, 19]. A valid 16 digit card number will be in the format - XXXX XXXX XXXX XXXX
• CARD_HOLDER_NAME: Name should be 2 or more symbols, valid characters should match pattern - ^([a-zA-Z\\ \\,\\.\\-\\']{2,})$
• CVV: Card CVV can have 3-4 digits
• EXPIRATION_DATE: Any date starting from current month. By default valid expiration date should be in short year format - MM/YY
• PIN: Can have 4-12 digits

2. Custom Validations:

Custom validations can be added to any element which will be checked after the default validations have passed. The following Custom validation rules are currently supported:

• REGEX_MATCH_RULE: You can use this rule to specify any Regular Expression to be matched with the input field value

const regexMatchRule = {
  type: Skyflow.ValidationRuleType.REGEX_MATCH_RULE,
  params: {
    regex: RegExp,
    error: string // optional, default error is "VALIDATION FAILED"
  }
}

• LENGTH_MATCH_RULE: You can use this rule to set the minimum and maximum permissible length of the input field value

const lengthMatchRule = {
  type: Skyflow.ValidationRuleType.LENGTH_MATCH_RULE,
  params: {
    min : number, // optional
    max : number, // optional 
    error: string // optional, default error is "VALIDATION FAILED"
  }
}

• ELEMENT_VALUE_MATCH_RULE: You can use this rule to match the value of one element with another element

const elementValueMatchRule = {
  type: Skyflow.ValidationRuleType.ELEMENT_VALUE_MATCH_RULE,
  params: {
    element: CollectElement,
    error: string // optional, default error is "VALIDATION FAILED"
  }
}

The Sample code snippet for using custom validations:

/*
  A simple example that illustrates custom validations.
  Adding REGEX_MATCH_RULE , LENGTH_MATCH_RULE to collect element.
*/

// this rule allows 1 or more alphabets
const alphabetsOnlyRegexRule = {
  type: Skyflow.ValidationRuleType.REGEX_MATCH_RULE,
  params:{
    regex: /^[A-Za-z]+$/,
    error: "Only alphabets are allowed"
  }
}; 

// this rule allows input length between 4 and 6 characters
const lengthRule = {
  type: Skyflow.ValidationRuleType.LENGTH_MATCH_RULE,
  params:{
    min: 4,
    max: 6,
    error: "Must be between 4 and 6 alphabets"
  }
}; 

 const cardHolderNameElement = collectContainer.create({
      table: "pii_fields",
      column: "first_name",
      ...collectStylesOptions,
      label: "Card Holder Name",
      placeholder: "cardholder name",
      type: Skyflow.ElementType.INPUT_FIELD,
      validations: [alphabetsOnlyRegexRule, lengthRule]
    });

/*
  Reset PIN - A simple example that illustrates custom validations.
  The below code shows an example of ELEMENT_VALUE_MATCH_RULE
*/

// for the PIN element
const pinElement = collectContainer.create({
  label: "PIN",
  placeholder: "****",
  type: Skyflow.ElementType.PIN,
});

// this rule allows to match the value with pinElement
let elementMatchRule = {
  type: Skyflow.ValidationRuleType.ELEMENT_VALUE_MATCH_RULE,
  params:{
    element: pinElement,
    error: "PIN doesn't match"
  }
}
const confirmPinElement = collectContainer.create({
  label: "Confirm PIN",
  placeholder: "****",
  type: Skyflow.ElementType.PIN,
  validations: [elementMatchRule]
});

// mount elements on screen - errors will be shown if any of the validaitons fail
pinElement.mount("#collectPIN");
confirmPinElement.mount("#collectConfirmPIN");

Event Listener on Collect Elements

Helps to communicate with skyflow elements / iframes by listening to an event

element.on(Skyflow.EventName,handler:function)

There are 4 events in Skyflow.EventName

• CHANGE
  Change event is triggered when the Element's value changes.

• READY
  Ready event is triggered when the Element is fully rendered

• FOCUS
  Focus event is triggered when the Element gains focus

• BLUR
  Blur event is triggered when the Element loses focus.

The handler function(state) => void is a callback function you provide, that will be called when the event is fired with the state object as shown below.

state : {
  elementType: Skyflow.ElementType
  isEmpty: boolean 
  isFocused: boolean
  isValid: boolean
  value: string
}

Note: values of SkyflowElements will be returned in elementstate object only when env is DEV, else it is empty string i.e, ''

Sample code snippet for using listeners

//create skyflow client
const skyflowClient = Skyflow.init({
   vaultID: <VAULT_ID>,          
   vaultURL: <VAULT_URL>,
   getBearerToken: ()=>{},
   options: { 
     env: Skyflow.Env.DEV
   }
})

const container = skyflowClient.container(Skyflow.ContainerType.COLLECT)

const cardNumber = container.create({
        table: "pii_fields",
        column: "primary_card.card_number",
        type: Skyflow.ElementType.CARD_NUMBER,
      });

cardNumber.mount("#cardNumberContainer");

//subscribing to CHANGE event, which gets triggered when element changes
cardNumber.on(Skyflow.EventName.CHANGE,(state) => {
  // Your implementation when Change event occurs
  console.log(state)
});

Sample Element state object when env is DEV

{
   elementType: "CARD_NUMBER"
   isEmpty: false
   isFocused: true
   isValid: false
   value: "411"
}

Sample Element state object when env is PROD

{
   elementType: "CARD_NUMBER"
   isEmpty: false
   isFocused: true
   isValid: false
   value: ''
}

UI Error for Collect Elements

Helps to display custom error messages on the Skyflow Elements through the methods setError and resetError on the elements.

setError(error: string) method is used to set the error text for the element, when this method is trigerred, all the current errors present on the element will be overridden with the custom error message passed. This error will be displayed on the element until resetError() is trigerred on the same element.

resetError() method is used to clear the custom error message that is set using setError.

Sample code snippet for setError and resetError

const container = skyflowClient.container(Skyflow.ContainerType.COLLECT)

const cardNumber = container.create({
    table: "pii_fields",
    column: "primary_card.card_number",
    type: Skyflow.ElementType.CARD_NUMBER,
});

//Set custom error
cardNumber.setError("custom error");

//reset custom error
cardNumber.resetError();

Set and Clear value for Collect Elements (DEV ENV ONLY)

setValue(value: string) method is used to set the value of the element. This method will override any previous value present in the element.

clearValue() method is used to reset the value of the element.

Note: This methods are only available in DEV env for testing/developmental purposes and MUST NOT be used in PROD env.

Sample code snippet for setValue and clearValue

const container = skyflowClient.container(Skyflow.ContainerType.COLLECT)

const cardNumber = container.create({
    table: "pii_fields",
    column: "primary_card.card_number",
    type: Skyflow.ElementType.CARD_NUMBER,
});

// Set a value programatically
cardNumber.setValue("4111111111111111");

// Clear the value
cardNumber.clearValue();

---

Securely revealing data client-side

• Retrieving data from the vault
• Using Skyflow Elements to reveal data
• UI Error for Reveal Elements
• Set token for Reveal Elements
• Set and clear altText for Reveal Elements

Retrieving data from the vault

For non-PCI use-cases, retrieving data from the vault and revealing it in the browser can be done either using the SkyflowID's or tokens as described below

• Using Skyflow tokens

  In order to retrieve data from your vault using tokens that you have previously generated for that data, you can use the detokenize(records) method. The records parameter takes a JSON object that contains records to be fetched as shown below.

const records = {
  "records": [
      {
        token: "string",                    // token for the record to be fetched
      }
  ]
}

skyflow.detokenize(records)

An example of a detokenize call:

skyflow.detokenize({
  "records": [
    {
      token: "131e70dc-6f76-4319-bdd3-96281e051051"
    }
  ]
})

The sample response:

{
  "records": [
    {
      "token": "131e70dc-6f76-4319-bdd3-96281e051051",
      "value": "1990-01-01",
    }
  ]
}

• Using Skyflow ID's

  In order to retrieve data from your vault using SkyflowIDs, use the getById(records) method.The records parameter takes a JSON object that contains records to be fetched as shown below.

{
  "records": [
    {
      ids: string[],                      // array of SkyflowID's of the records to be fetched
      table: string                       // table holding the above skyflow_id's
      redaction: Skyflow.RedactionType    // redaction to be applied to retrieved data
    }
  ]
}

There are 4 accepted values in Skyflow.RedactionTypes:

• PLAIN_TEXT
• MASKED
• REDACTED
• DEFAULT

An example of getById call:

skyflow.getById({
  records: [
    {
      ids: ["f8d8a622-b557-4c6b-a12c-c5ebe0b0bfd9"],
      table: "cards",
      redaction: Skyflow.RedactionType.PLAIN_TEXT,
    },
    {
      ids: ["da26de53-95d5-4bdb-99db-8d8c66a35ff9"],
      table: "contacts",
      redaction: Skyflow.RedactionType.PLAIN_TEXT,
    },
  ],
});

The sample response:

{
    "records": [
        {
            "fields": {
                "card_number": "4111111111111111",
                "cvv": "127",
                "expiry_date": "11/2035",
                "fullname": "myname",
                "id": "f8d8a622-b557-4c6b-a12c-c5ebe0b0bfd9"
            },
            "table": "cards"
        }
    ],
    "errors": [
        {
            "error": {
                "code": "404",
                "description": "No Records Found"
            },
            "ids": ["da26de53-95d5-4bdb-99db-8d8c66a35ff9"]
        }
    ]
}

Using Skyflow Elements to reveal data

Skyflow Elements can be used to securely reveal data in a browser without exposing your front end to the sensitive data. This is great for use cases like card issuance where you may want to reveal the card number to a user without increasing your PCI compliance scope.

Step 1: Create a container

To start, create a container using the container(Skyflow.ContainerType) method of the Skyflow client as shown below.

const container = skyflowClient.container(Skyflow.ContainerType.REVEAL)

Step 2: Create a reveal Element

Then define a Skyflow Element to reveal data as shown below.

const revealElement = {
  token: "string",                    //optional, token of the data being revealed 
  inputStyles: {},                    //optional styles to be applied to the element
  labelStyles: {},                    //optional, styles to be applied to the label of the reveal element
  errorTextStyles: {},                //optional styles that will be applied to the errorText of the reveal element
  label: "string",                    //optional, label for the form element
  altText: "string"                   //optional, string that is shown before reveal, will show token if altText is not provided
}

The inputStyles, labelStyles and errorTextStyles parameters accepts a styles object as described in the previous section for collecting data. But for reveal element, inputStyles accepts only base variant and copyIcon style object.

An example of a inputStyles object:

inputStyles: {
    base: {
      color: "#1d1d1d"
    },
    copyIcon:{
      position: "absolute",
      right:"8px",
      top: "calc(50% - 10px)",
    }
}

An example of a labelStyles object:

labelStyles: {
    base: {
      fontSize: "12px",
      fontWeight: "bold"
    }
}

An example of a errorTextStyles object:

errorTextStyles: {
    base: {
      color: "#f44336"
    }
}

Once you've defined a Skyflow Element, you can use the create(element) method of the container to create the Element as shown below:

const element = container.create(revealElement)

Step 3: Mount Elements to the DOM

Elements used for revealing data are mounted to the DOM the same way as Elements used for collecting data. Refer to Step 3 of the section above.

Step 4: Reveal data

When the sensitive data is ready to be retrieved and revealed, call the reveal() method on the container as shown below:

container.reveal()
  .then((data) => {
    //handle success
  })
  .catch((err) => {
    //handle error
  })

End to end example of all steps

Sample Code:

//Step 1
const container = skyflowClient.container(Skyflow.ContainerType.REVEAL)

//Step 2
const cardNumberElement = container.create({             
  token: "b63ec4e0-bbad-4e43-96e6-6bd50f483f75",
  inputStyles: {
      base: {
        color: "#1d1d1d",
      },
  },
  labelStyles: {
    base: {
      fontSize: "12px",
    }
  },
  errorTextStyles: {
    base: {
      color: "#f44336"
    }
  }, 
  label: "card_number",
  altText: "XXXX XXXX XXXX XXXX" 
})

const cvvElement = container.create({             
  token: "89024714-6a26-4256-b9d4-55ad69aa4047",
  inputStyles: {
      base: {
        color: "#1d1d1d",
      },
    },
  label: "cvv",
  altText: "XXX" 
})

//Step 3
cardNumberElement.mount("#cardNumber")  //assumes there is a placeholder div with id="#cardNumber" on the page
cvvElement.mount("#cvv")  //assumes there is a placeholder div with id="#cvv" on the page
                                        
//Step 4    
container                                       
 .reveal()                              
 .then((data) => {
   //handle success
 })
 .catch((err) => {
   //handle error
 });

The response below shows that some tokens assigned to the reveal elements get revealed successfully, while others fail and remain unrevealed.

Sample Response

{
  "success": [
    {
      "token": "b63ec4e0-bbad-4e43-96e6-6bd50f483f75"
    }
  ],
 "errors": [
    {
       "token": "89024714-6a26-4256-b9d4-55ad69aa4047",
       "error": {
         "code": 404,
         "description": "Tokens not found for 89024714-6a26-4256-b9d4-55ad69aa4047"
       } 
   }   
  ]
}

UI Error for Reveal Elements

Helps to display custom error messages on the Skyflow Elements through the methods setError and resetError on the elements.

setError(error: string) method is used to set the error text for the element, when this method is trigerred, all the current errors present on the element will be overridden with the custom error message passed. This error will be displayed on the element until resetError() is trigerred on the same element.

resetError() method is used to clear the custom error message that is set using setError.

Sample code snippet for setError and resetError

const container = skyflowClient.container(Skyflow.ContainerType.REVEAL)

const cardNumber = container.create({
   token: "89024714-6a26-4256-b9d4-55ad69aa4047",
});

//Set custom error
cardNumber.setError("custom error");

//reset custom error
cardNumber.resetError();

Set token for Reveal Elements

The setToken(value: string) method can be used to set the token of the Reveal Element. If no altText is set, the set token will be displayed on the UI as well. If altText is set, then there will be no change in the UI but the token of the element will be internally updated.

Sample code snippet for setToken

const container = skyflowClient.container(Skyflow.ContainerType.REVEAL)

const cardNumber = container.create({
   altText:"Card Number",
});

// set token 
cardNumber.setToken("89024714-6a26-4256-b9d4-55ad69aa4047");

Set and Clear altText for Reveal Elements

The setAltText(value: string) method can be used to set the altText of the Reveal Element. This will cause the altText to be displayed in the UI regardless of whether the token or value is currently being displayed.

clearAltText() method can be used to clear the altText, this will cause the element to display the token or actual value of the element. If the element has no token, the element will be empty.

Sample code snippet for setAltText and clearAltText

const container = skyflowClient.container(Skyflow.ContainerType.REVEAL)

const cardNumber = container.create({
   token:"89024714-6a26-4256-b9d4-55ad69aa4047",
});

// set altText
cardNumber.setAltText("Card Number");

//clear altText
cardNumber.clearAltText(); 

Using Skyflow File Element to upload a file

You can upload binary files to a vault using the Skyflow File Element. Use the following steps to securely upload a file.

Step 1: Create a container

Create a container for the form elements using the container(Skyflow.ContainerType) method of the Skyflow client:

const container = skyflowClient.container(Skyflow.ContainerType.COLLECT)

Step 2: Create a File Element

Skyflow Collect Elements are defined as follows:

const collectElement =  {
   table: "string",             //the table this data belongs to
   column: "string",            //the column into which this data should be inserted
   skyflowID: "string",         // the skyflow_id of the record
   type: Skyflow.ElementType.FILE_INPUT,   //Skyflow.ElementType enum
   inputStyles: {},             //optional styles that should be applied to the form element
   labelStyles: {},             //optional styles that will be applied to the label of the collect element
   errorTextStyles:{},          //optional styles that will be applied to the errorText of the collect element
}

The table and column fields indicate which table and column the Element corresponds to.

skyflowID indicates the record that stores the file.

Notes:

• skyflowID is required while creating File element
• Use period-delimited strings to specify columns nested inside JSON fields (e.g. address.street.line1).

Step 3: Mount elements to the DOM

To specify where to render Elements on your page, create placeholder <div> elements with unique id tags. For instance, the form below has an empty div with a unique id as a placeholder for a Skyflow Element.

<form>
  <div id="file"/>
  <br/>
  <button type="submit">Submit</button>
</form>

Now, when the mount(domElement) method of the Element is called, the Element is inserted in the specified div. For instance, the call below inserts the Element into the div with the id "#file".

element.mount("#file")

Use the unmount method to reset a Collect Element to its initial state.

element.unmount();

Step 4: Collect data from elements

When the file is ready to be uploaded, call the uploadFiles() method on the container object.

container.uploadFiles()

File upload limitations:

• Only non-executable file are allowed to be uploaded.
• Files must have a maximum size of 32 MB
• File columns can't enable tokenization, redaction, or arrays.
• Re-uploading a file overwrites previously uploaded data.
• Partial uploads or resuming a previous upload isn't supported.

End-to-end file upload

//Step 1
const container = skyflowClient.container(Skyflow.ContainerType.COLLECT) 

//Step 2
const element = container.create({           
  table: "pii_fields",
  column: "file",
  skyflowID:"431eaa6c-5c15-4513-aa15-29f50babe882",
  inputstyles: {
      base: {
        color: "#1d1d1d",
      },
  },
  labelStyles: {
      base: {
        fontSize: "12px",
        fontWeight: "bold"
      }
  },
  errorTextStyles: {
      base: {
        color: "#f44336"
      }
  },
  type: Skyflow.ElementType.FILE_INPUT
})

// Step 3
element.mount("#file")  //assumes there is a div with id="#file" in the webpage

// Step 4
container.uploadFiles()

Sample Response :

{
    fileUploadResponse: [
        {
            "skyflow_id": "431eaa6c-5c15-4513-aa15-29f50babe882"
        }
    ]
}

File upload with additional elements

// Create collect Container

const collectContainer = skyflow.container(Skyflow.ContainerType.COLLECT);


// Create collect elements

const cardNumberElement = collectContainer.create({
  table: "newTable",
  column: "card_number",
  inputstyles: {
      base: {
        color: "#1d1d1d",
      },
  },
  labelStyles: {
      base: {
        fontSize: "12px",
        fontWeight: "bold"
      }
  },
  errorTextStyles: {
      base: {
        color: "#f44336"
      }
  },,
  placeholder: "card number",
  label: "Card Number",
  type: Skyflow.ElementType.CARD_NUMBER,
});

const fileElement = collectContainer.create({
  table: "newTable",
  column: "file",
  skyflowID: '431eaa6c-5c15-4513-aa15-29f50babe882',
  inputstyles: {
      base: {
        color: "#1d1d1d",
      },
  },
  labelStyles: {
      base: {
        fontSize: "12px",
        fontWeight: "bold"
      }
  },
  errorTextStyles: {
      base: {
        color: "#f44336"
      }
  },,
  type: Skyflow.ElementType.FILE_INPUT,
});

// Mount the elements

cardNumberElement.mount("#collectCardNumber");
fileElement.mount("#collectFile");

// Collect and upload methods

container.collect(options={})
container.uploadFiles()

Sample Response for collect():

{
  "records": [
    {
      "table": "newTable",
      "fields": {
        "card_number": "f3907186-e7e2-466f-91e5-48e12c2bcbc1",
      }
    }
  ]
}

Sample Response for file uploadFiles() :

{
    "fileUploadResponse": [
        {
            "skyflow_id": "431eaa6c-5c15-4513-aa15-29f50babe882"
        }
    ]
}

Reporting a Vulnerability

If you discover a potential security issue in this project, please reach out to us at [e-mail]. Please do not create public GitHub issues or Pull Requests, as malicious actors could potentially view them.