Custom Email verification in a single orchestration step in AD B2C Custom policies - azure-ad-b2c

Question

I have a multi-step custom policy that first collects email from user and sends a verification code to the user when user clicks continue. The journey works fine. But the thing is validation of code is happening in next step. I need to bring that code validation in to the first orchestration step. I'm following the below doc to implement this journey:
"https://github.com/yoelhor/aadb2c-verification-code"
My technical profile is like the following:
<TechnicalProfile Id="LocalAccountSignUpWithLogonEmail-FirstStep">
<DisplayName>Email signup</DisplayName>
<Protocol Name="Proprietary" Handler="Web.TPEngine.Providers.SelfAssertedAttributeProvider, Web.TPEngine, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
<Metadata>
<Item Key="IpAddressClaimReferenceId">IpAddress</Item>
<Item Key="ContentDefinitionReferenceId">api.localaccountsignup</Item>
<Item Key="language.button_continue">Send verification email</Item>
<Item Key="EnforceEmailVerification">False</Item>
</Metadata>
<CryptographicKeys>
<Key Id="issuer_secret" StorageReferenceId="B2C_1A_TokenSigningKeyContainer" />
</CryptographicKeys>
<InputClaims>
<InputClaim ClaimTypeReferenceId="email" />
</InputClaims>
<OutputClaims>
<OutputClaim ClaimTypeReferenceId="email" PartnerClaimType="Verified.Email" Required="true" />
<OutputClaim ClaimTypeReferenceId="verificationCode" />
</OutputClaims>
<OutputClaimsTransformations>
<OutputClaimsTransformation ReferenceId="CopyEmailAsReadOnly" />
</OutputClaimsTransformations>
<ValidationTechnicalProfiles>
<ValidationTechnicalProfile ReferenceId="REST-API-SendVerificationEmail" />
</ValidationTechnicalProfiles>
<UseTechnicalProfileForSessionManagement ReferenceId="SM-AAD" />
</TechnicalProfile>
and the validation tech profile as follows:
<TechnicalProfile Id="REST-API-SendVerificationEmail">
<DisplayName>Sign-Up send link</DisplayName>
<Protocol Name="Proprietary" Handler="Web.TPEngine.Providers.RestfulProvider, Web.TPEngine, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
<Metadata>
<Item Key="ServiceUrl">https://myweb.azurewebsites.net/api/Identity/SendVerificationCode</Item>
<Item Key="AuthenticationType">None</Item>
<Item Key="SendClaimsIn">Body</Item>
<Item Key="AllowInsecureAuthInProduction">true</Item>
</Metadata>
<InputClaims>
<InputClaim ClaimTypeReferenceId="email" />
</InputClaims>
<OutputClaims>
<OutputClaim ClaimTypeReferenceId="verificationCode" />
</OutputClaims>
<UseTechnicalProfileForSessionManagement ReferenceId="SM-Noop" />
</TechnicalProfile>

Answer 1

It cant be achieved currently, to call the REST API, the form must be submitted and that will cause the orchestration step to complete and move to the next one.
In a few weeks we will release how to achieve this, and without the use of an external REST API to generate and verify the OTP Codes. Stay tuned.