Saving a record using LDS (force:recordData)

Here we taking a simple example to see how to use force:recordData to save the record.

Put the below component in account record detail page.

savecomp.cmp

<aura:component implements="force:hasRecordId,flexipage:availableForAllPageTypes,flexipage:availableForRecordHome" access="global" >
    <aura:attribute name="record" type="Object"/>
    <aura:attribute name="recordFieldsToQuery" type="Object"/>
    <aura:attribute name="recordError" type="String"/>
    <force:recordData aura:id="savingRecord"
                      recordId="{!v.recordId}"
                      layoutType="FULL"
                      mode="EDIT"
                      targetRecord="{!v.record}"
                      targetFields="{!v.recordFieldsToQuery}"
                      targetError="{!v.recordError}"
                      />

    <!--We are using lightning card to display fields of account object-->
   
    <lightning:card iconName="action:edit" title="Edit Account">
        <div class="slds-p-horizontal--small">
            <lightning:formattedText label="Account name" value="{!v.recordFieldsToQuery.Name}"/>
            <br/>
            <lightning:input label="Account billing city" value="{!v.recordFieldsToQuery.BillingCity}" />
            <br/>
            <lightning:button label="Save Changes" variant="brand" onclick="{!c.handleSaveChange}" />
        </div>
    </lightning:card>

</aura:component>

savecompcontroller.js

({
    handleSaveChange : function(component, event, helper) {
        component.find("savingRecord").saveRecord($A.getCallback(function(saveResult) {
            
           // Handling state of response(SUCCESS,INCOMPLETE,ERROR)
           
             if (saveResult.state === "SUCCESS" || saveResult.state === "DRAFT") {
                alert("Changes saved successfully.");
            }
            else if (saveResult.state === "INCOMPLETE" ) {
                alert("Error in saving record");
            }
            else if (saveResult.state === "ERROR") {
               alert("Problem saving record, error:" + 
                           JSON.stringify(saveResult.error));
            }
            else
            {
                 alert('Unknown problem, state: ' + saveResult.state + ', error: ' + JSON.stringify(saveResult.error));
            }
            
         }));
            
        
    }

})

OUTPUT: