Use CreateSchemaMapping with an AWS SDK - AWS SDK Code Examples

There are more AWS SDK examples available in the AWS Doc SDK Examples GitHub repo.

Use CreateSchemaMapping with an AWS SDK

The following code examples show how to use CreateSchemaMapping.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code example:

Java
SDK for Java 2.x
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository. 

    /**
     * Creates a schema mapping asynchronously.
     *
     * @param schemaName the name of the schema to create
     * @return a {@link CompletableFuture} that represents the asynchronous creation of the schema mapping
     */
    public CompletableFuture<CreateSchemaMappingResponse> createSchemaMappingAsync(String schemaName) {
        List<SchemaInputAttribute> schemaAttributes = null;
        if (schemaName.startsWith("json")) {
            schemaAttributes = List.of(
                SchemaInputAttribute.builder().matchKey("id").fieldName("id").type(SchemaAttributeType.UNIQUE_ID).build(),
                SchemaInputAttribute.builder().matchKey("name").fieldName("name").type(SchemaAttributeType.NAME).build(),
                SchemaInputAttribute.builder().matchKey("email").fieldName("email").type(SchemaAttributeType.EMAIL_ADDRESS).build()
            );
        } else {
            schemaAttributes = List.of(
                SchemaInputAttribute.builder().matchKey("id").fieldName("id").type(SchemaAttributeType.UNIQUE_ID).build(),
                SchemaInputAttribute.builder().matchKey("name").fieldName("name").type(SchemaAttributeType.NAME).build(),
                SchemaInputAttribute.builder().matchKey("email").fieldName("email").type(SchemaAttributeType.EMAIL_ADDRESS).build(),
                SchemaInputAttribute.builder().fieldName("phone").type(SchemaAttributeType.PROVIDER_ID).subType("STRING").build()
            );
        }

        CreateSchemaMappingRequest request = CreateSchemaMappingRequest.builder()
            .schemaName(schemaName)
            .mappedInputFields(schemaAttributes)
            .build();

        return getResolutionAsyncClient().createSchemaMapping(request)
            .whenComplete((response, exception) -> {
                if (response != null) {
                    logger.info("[{}] schema mapping Created Successfully!", schemaName);
                } else {
                    if (exception == null) {
                        throw new CompletionException("An unknown error occurred while creating the schema mapping.", null);
                    }

                    Throwable cause = exception.getCause();
                    if (cause instanceof ConflictException) {
                        throw new CompletionException("A conflicting schema mapping already exists. Resolve conflicts before proceeding.", cause);
                    }

                    // Wrap other AWS exceptions in a CompletionException.
                    throw new CompletionException("Failed to create schema mapping: " + exception.getMessage(), exception);
                }
            });
    }
JavaScript
SDK for JavaScript (v3)
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository. 


//The default inputs for this demo are read from the ../inputs.json.

import { fileURLToPath } from "node:url";

import {
  CreateSchemaMappingCommand,
  EntityResolutionClient,
} from "@aws-sdk/client-entityresolution";
import data from "../inputs.json" with { type: "json" };

const region = "eu-west-1";
const erClient = new EntityResolutionClient({ region: region });

export const main = async () => {
  const createSchemaMappingParamsJson = {
    schemaName: `${data.inputs.schemaNameJson}`,
    mappedInputFields: [
      {
        fieldName: "id",
        type: "UNIQUE_ID",
      },
      {
        fieldName: "name",
        type: "NAME",
      },
      {
        fieldName: "email",
        type: "EMAIL_ADDRESS",
      },
    ],
  };
  const createSchemaMappingParamsCSV = {
    schemaName: `${data.inputs.schemaNameCSV}`,
    mappedInputFields: [
      {
        fieldName: "id",
        type: "UNIQUE_ID",
      },
      {
        fieldName: "name",
        type: "NAME",
      },
      {
        fieldName: "email",
        type: "EMAIL_ADDRESS",
      },
      {
        fieldName: "phone",
        type: "PROVIDER_ID",
        subType: "STRING",
      },
    ],
  };
  try {
    const command = new CreateSchemaMappingCommand(
      createSchemaMappingParamsJson,
    );
    const response = await erClient.send(command);
    console.log("The JSON schema mapping name is ", response.schemaName);
  } catch (error) {
    console.log("error ", error.message);
  }
};