How to do JSON parsing in Salesforce?
The above example is to do parsing in JavaScript, To do JSON Parsing in Salesforce we have quiet similar approach. But first we should understand few terms before we begin the JSON parsing concept. To convert an object into a stream of string characters is known as serialization, i. e Object -> String.
How to convert a string to an object in Salesforce?
To convert a stream of string into an object is known as deserialization, or simply opposite of serialization is called deserialization, normally it is a response received from a web server. String -> Object. To simplify the process of serialization and deserialization, Salesforce has provided a whole class for this purpose, i.e. JSONParser Class.
How do I parse a JSON-formatted response?
This example parses a JSON-formatted response using JSONParser methods. It makes a callout to a web service that returns a response in JSON format. Next, the response is parsed to get all the totalPrice field values and compute the grand total price.
How to deserialise a list of invoices in Salesforce apex?
In this case we will use the below code to deserialise the list List<invoice> lstInvoice = (list<invoice>) JSON.deserialize (jsonStr list<invoice>.class); This will parse the string into the respected object list we created in our apex class.
What is parser in Salesforce?
In salesforce, we use methods of JSONParser class to parse the JSON-encoded string/content that is returned from a call to an external service such that web service(HTTP) callout.
How do I parse a response in Apex?
Process :Step1: First we get JSON data from REST API. Or if you already have then you can you this.Step2: Go to JSON2Apex Converter and paste the JSON data.Step3: Create this apex class in Org and Use for parse the data.JSON2Apex.cls:GetZoneData.cls :
What are JSON parsers?
The JSON Parser reads and writes entries using the JavaScript Object Notation (JSON) format. JSON is a lightweight data-interchange format and a subset of JavaScript programming language. JSON is built using the following two structures: An ordered list of values (array) A collection of name/value pairs (object)
What is JSON in Salesforce?
JSON (JavaScript Object Notation) is a human-readable, easily parsed or generated data-interchange language. Salesforce B2C Commerce provides a top level JSON class to make it simple to exchange objects between your server and client. The B2C Commerce implementation is based on the json2. js implementation of JSON.
How do I deserialize JSON data in Apex?
deserialize() , you must specify the type of value you expect the JSON to yield, and Apex will attempt to deserialize to that type. JSON. serialize() accepts both Apex collections and objects, in any combination that's convertible to legal JSON. String jsonString = JSON.
What is JSON deserialize in Salesforce?
deserialize(jsonString, apexType) Deserializes the specified JSON string into an Apex object of the specified type.
Why do we use JsonParser?
Interface JsonParser. Provides forward, read-only access to JSON data in a streaming way. This is the most efficient way for reading JSON data. The class Json contains methods to create parsers from input sources ( InputStream and Reader ).
What is body parser?
Body-parser is the Node. js body parsing middleware. It is responsible for parsing the incoming request bodies in a middleware before you handle it. Installation of body-parser module: You can visit the link to Install body-parser module.
How can I convert JSON to string?
Use the JavaScript function JSON. stringify() to convert it into a string. const myJSON = JSON. stringify(obj);
What is serialize JSON?
JSON is a format that encodes objects in a string. Serialization means to convert an object into that string, and deserialization is its inverse operation (convert string -> object).
What is serialize in salesforce?
"Serialization" is what occurs when binary computer memory is converted into a format that can be transferred to disk or over a network connection. In Salesforce (and most other web-based platforms), this is commonly called the "view state". The view state contains information about the memory contents of variables.
What is JSON full form?
JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax. It is commonly used for transmitting data in web applications (e.g., sending some data from the server to the client, so it can be displayed on a web page, or vice versa).
getCurrentToken ()
Returns the token that the parser currently points to or null if there's no current token.
getLastClearedToken ()
Returns the last token that was cleared by the clearCurrentToken method.
getText ()
Returns the textual representation of the current token or null if there's no current token.
hasCurrentToken ()
Returns true if the parser currently points to a token; otherwise, returns false.
nextToken ()
Returns the next token or null if the parser has reached the end of the input stream.
nextValue ()
Returns the next token that is a value type or null if the parser has reached the end of the input stream.
readValueAs (apexType)
Deserializes JSON content into an object of the specified Apex type and returns the deserialized object.
The Journey of Building a Scalable API
APIs are an essential tool to allow partners, developers, and applications to consume, communicate, or build on top of the various capabilities your microservices provide.
Choosing an Execution Environment
Depending on the requirement, an execution environment could be bare metal, a virtual machine (VM), or an application container. We chose application containers, as these can run on a physical machine or in a VM, and a single operating system instance can support multiple containers, each running within its own, separate execution environment.
A note on container orchestration
If you decide to go with containers, like we did, container orchestration will help you automate the deployment, management, scaling, and networking of containers. There are many container orchestration tools to consider: Kubernetes, Apache Mesos, or DC/OS (with Marathon), Amazon EKS, Google Kubernetes Engine (GKE), and others.
Choosing an API Technology
To build an API, we chose GraphQL. If you haven’t heard of it, it is a popular alternative to other available options like REST, SOAP, Apache Thrift, OpenAPI/Swagger or gRPC.
GraphQL in Action
We used GraphQL in our Classification Insight API. Classification Insight offers information about a user and helps meeting participants know the titles and roles of other people present at the meeting. For this API, we used Kotlin and graphql-java, a Java implementation of GraphQL.
Ensuring Your APIs are Secure
At Salesforce, security is our top priority. Our APIs are accessible only to registered users, and they can access only the data that they have the permissions for. You may want to explore OAuth 2.0 (JWT grant type and role based access control) and Open Policy Agent (OPA) for your access control needs.
Conclusion
We have demonstrated how to build a scalable, efficient, secure API. We used application containers to scale, GraphQL and embedded Jetty to make it efficient and lightweight, and prioritized the security aspects of our API. We will discuss other aspects of API development, such as security and deployment, in more detail in upcoming posts.
Where is the lead tab in Salesforce?
Go to the "Leads" tab, which will be toward the left hand side of your horizontal options for your Salesforce account. Check if you have an option to "Add New" at the top. Most user accounts will not have this option. In general, mainly administrators add new Salesforce leads.
Do you need an email to sign up for Salesforce?
You will be asked for an email and a password. Although companies usually sign up for Salesforce, there is a unique login for each user. Salesforce's software is based on "cloud computing" where the database is stored on more than 1 server and made available through an Internet connection.
