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Create an API in the API Manager

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In this article

Overview

In SnapLogic Manager, the API Manager console provides a space where you can create APIs by referencing a specification. The new API asset acts as a container for the following SnapLogic assets.

  • Pipeline: The Pipeline is a representation of the API specification and provides the scaffolding of its implementation in the SnapLogic platform.

  • Tasks: The URI endpoints used to trigger Pipeline execution.

  • Files: A specification file. Both JSON and YAML file formats are supported.

  • Accounts: Accounts in Manager referenced by Pipelines used in the API.

You can create an API using one of four ways:

  • By uploading an Open API Specification (OAS) file (Design First) with either a JSON or YAML file extension.

  • By entering a URL that points to an Open API Specification file (Design First)

  • By creating an API from an existing project

  • By starting with an empty API

The first version is automatically created when you create the API. However, you can create additional versions of your API and manage them.

Prerequisites

  • APIM prerequisites for your Org

  • Your API specifications must be based on Open API Specification (OAS) 3.0 or 2.0.

  • You must have Write permissions to create an API.

API Manager

To navigate to the API Manager, go to Manager > API Management > API Manager.

APIM

APIs and Proxies appear in this list. You can view details about the API or Proxy by clicking it. You can also set permissions on your API.

Known Issue

  • Lint issues occur when working with reference accounts, associated JAR files, and error pipelines in older Snaplex versions.

    • Workaround - Update the Snaplex to the latest version to resolve the lint issue.

Create the API using Design First

  1. In the API Manager page, under the APIs & Proxies tab, click the add icon ( (blue star) ) and choose New API.

  2. In Create New API, choose the source of the OAS file.

    • Upload File. Click Choose File to specify the location of the specification file to upload.

    • Enter URL. Enter a valid URL pointing to the location of the specification file.

  3. Click Continue.

  4. In Create New API - Options, select your API Import Configurations.

    • Create Specification. If selected, the imported specification is included as a File Asset in the API.

    • Create Endpoints from Path. If selected, endpoints for the new API are created based on its path to one of the following:

      • Triggered Task: Choose to make the API endpoint a Triggered Task.

      • Ultra Task: Choose to make the API endpoint an Ultra Task.

  5. Click Import and Continue.

  6. In Create New API - Details, fill in the details for the new API.

    • General Info

      • Name (Title). The name of the new API.

        The name must meet the following requirements:

        • Must be unique.

        • Must begin with alphanumeric characters A-Z, a-z, or 0-9.

        • Cannot contain the reserved keyword shared.

        • Cannot contain |, <, >, [, ], {, }, #, ?, /, and \.

        • Must be no more than 256 characters. If the name includes double-byte characters, the maximum length is shorter.

      • Description. A description of the new API.

      • Version. The version number for the first version of the API.
        Default: 1.0.
        Learn more: Managing Versions of Your APIs

      • Tags. Enter any tags associated with your API. You can create the tags as required. 

    • Endpoint Configuration » Path to Endpoint. (Read-only) The base path for the endpoint.

    • Server Configuration » Snaplex. The Snaplex to associate with the new API.

  7. Click Create.

Troubleshooting Section for API Specification file

Any structural or syntax issues in the API, API Version, or Proxy specification file results in an error in the SnapLogic UI. You can change the specifications according to the error message in the Swagger editor or any other editor tool.

Entity

Error Messages for Incorrect JSON or YAML (OAS2.0 or OAS3.0) Specifications

Description and Resolution

API and Proxy

 Structural Error Message 1

Spec Contains Error

Structural error

Expecting property name enclosed in double quotes: line 33 column 29 (char 782)

Line 33

Column 29

 Invalid or Incorrect Data Error Message 2

Spec Contains Errors

Structural error at $

'invalidField' does not match any of the regexes: '^x-'

 Invalid or Incorrect Data Error Message 3

Spec Contains Errors

Structural error

Invalid API specification: 'str' object has no attribute 'get

  • If the API Specification structure is incorrect structure, then the error message displays a missing path where the syntax is broken with the line and column number.

  • If the API Specification file has incorrect or invalid data, then it specifies the incorrect data.

  • You can edit the specs in any editor such as Swagger and upload the edited specification file to create the API, API Version, or Proxy.

Example Workflow

  1. Create an API in the API Manager with the upload option. Upload the OAS 2.0 or 3.0 YAML or JSON API Specification file:

    example-apispec.png

     

  2. If the file contains an incorrect data or a broke code structure, an error occurs:

    example-error-apispec.png

     

  3. You can edit the specification file in the Swagger editor:

    example-apispec-swaggereditor.png

 

  1. After all the errors in the Swagger editor are fixed, the API is successfully created with the edited API specification file. 

When you upload a incorrect data API or Proxy specification file it displays error messages in the Create New API, Create Proxy, Swagger Editor of Publish API and Publish Proxy wizards.

Create the API from Existing Project Assets

  1. In the API Manager page, under the APIs & Proxies tab, click the add icon ( (blue star) ) and choose New API.

  2. In Create New API, choose Create from Existing Project and select the Project.

  3. Click Continue.

  4. In Create New API - Select Assets, select the types of assets you want to import to the new API. An Asset selected at the root level also imports the leaf-level Assets.

  5. Click Import and Continue.

  6. In Create New API - Details, fill in the details for the new API.

    • General Info

      • Name (Title). The name of the new API.

        The name must meet the following requirements:

        • Must be unique.

        • Must begin with alphanumeric characters A-Z, a-z, or 0-9.

        • Cannot contain the reserved keyword shared.

        • Cannot contain |, <, >, [, ], {, }, #, ?, /, and \.

        • Must be no more than 256 characters. If the name includes double-byte characters, the maximum length is shorter.

      • Description. A description of the new API.

      • Version. The version number for the first version of the API.
        Default: 1.0.
        Learn more: Managing Versions of Your APIs

      • Tags. Enter any tags associated with your API. You can create the tags as required. 

    • Endpoint Configuration » Path to Endpoint. (Read-only) The base path for the endpoint.

    • Server Configuration » Snaplex. The Snaplex to associate with the new API.

  7. Click Create.

  • You receive an error message when the reference JAR file is incorrect or when the asset is not found.

  • When you create an API from an existing project, the reference assets, including error pipelines and accounts, located in various folders or directories, and also the associated JAR files linked to the accounts, are automatically updated.

Create the API from a Git repository

  1. In the API Manager page, under the APIs & Proxies tab, click the add icon ( (blue star) ) and choose New API.

  2. In Create New API, choose Create from Git Checkout.

    1. Repository: Select the Git repository from the dropdown list.

    2. Branches/Tags: Choose an existing branch or create a new branch:

      • Select the Branch or Tag to associate with your API.

      • (Optional) Enter a name to create a new branch from main.

    3. Click Continue.

  3. In Create New API - Details, specify the details for the new API.

    • General Info

      • Name (Title). The name of the new API.

        The name must meet the following requirements:

        • Must be unique.

        • Must begin with alphanumeric characters A-Z, a-z, or 0-9.

        • Cannot contain the reserved keyword shared.

        • Cannot contain |, <, >, [, ], {, }, #, ?, /, and \.

        • Must be no more than 256 characters. If the name includes double-byte characters, the maximum length is shorter.

      • Description. A description of the new API.

      • Version. The version number for the first version of the API.
        Default: 1.0.
        Learn more: Managing Versions of Your APIs

      • Tags. Enter any tags associated with your API. You can create the tags as required. 

    • Endpoint Configuration » Path to Endpoint. (Read-only) The base path for the endpoint.

    • Server Configuration » Snaplex. The Snaplex to associate with the new API.

  4. Click Create.

  5. Navigate to the Assets tab of the API version to view the Git repository associated with the API version assets.


    The following image shows a new branch:

  6. Select an asset and click (blue star) to view the available Git operations.

Git operations option is not visible for the Git-authenticated user.

Creating an Empty API

  1. In the API Manager page, under the APIs & Proxies tab, click the add icon ( (blue star) ) and choose New API.

  2. In Create New API, choose Create Empty API.

  3. Click Continue.

  4. In Create New API - Details, fill in the details for the new API.

    • General Info

      • Name (Title). The name of the new API.

        The name must meet the following requirements:

        • Must be unique.

        • Must begin with alphanumeric characters A-Z, a-z, or 0-9.

        • Cannot contain the reserved keyword shared.

        • Cannot contain |, <, >, [, ], {, }, #, ?, /, and \.

        • Must be no more than 256 characters. If the name includes double-byte characters, the maximum length is shorter.

      • Description. A description of the new API.

      • Version. The version number for the first version of the API.
        Default: 1.0.
        Learn more: Managing Versions of Your APIs

      • Tags. Enter any tags associated with your API. You can create the tags as required. 

    • Endpoint Configuration » Path to Endpoint. (Read-only) The base path for the endpoint.

    • Server Configuration » Snaplex. The Snaplex to associate with the new API.

  5. Click Create.

Creating an APIM API in IIP

You can create an APIM API in IIP through the following workflows:

  • Designer

    • Creating a Triggered Task

    • Creating an Ultra Task

  • Manager

    • From a project or Project Space shared folder dropdown list

    • Creating/editing a Triggered Task

    • Creating/editing an Ultra Task

  1. Choose one of the following ways to open the dialog for a Triggered or Ultra Task:

    • In the Designer tab, click the Task icon from the expanded toolbar.

    • In the Manager tab, navigate to the target project or global shared folder, and In the assets table, do one of the following:

      • To create an APIM API from a task:

        1. For an existing Task, click on the target Task.

        2. Click (blue star) and in the dropdown, select Task > Triggered or Task > Ultra. Alternatively, click the Tasks tab, then click (blue star) and in the dropdown, select Triggered or Ultra.
          The task dialog for the task type you selected appears.

        3. Fill out the Task form with the appropriate information, then click Save and create API.

      • To create an APIM API from a project or Project Space share folder, click (blue star) to display the dropdown list, select Create API:

  2. In the Create new API assets, select the target assets to include in your API, and then click Import and continue.

  3. In the Create new API details, enter the details.

    • Name (Title). The name of the new API.

      The name must meet the following requirements:

      • Must be unique.

      • Must begin with alphanumeric characters A-Z, a-z, or 0-9.

      • Cannot contain the reserved keyword shared.

      • Cannot contain |, <, >, [, ], {, }, #, ?, /, and \.

      • Must be no more than 256 characters. If the name includes double-byte characters, the maximum length is shorter.

    • Description. A description of the new API.

    • Version. The version number for the first version of the API.
      Default: 1.0.
      Learn more: Managing Versions of Your APIs

    • Tags. Enter any tags associated with your API. You can create the tags as required. 

    • Endpoint Configuration » Path to Endpoint. (Read-only) The base path for the endpoint.

    • Server Configuration » Snaplex. The Snaplex to associate with the new API.

  4. Click Create.

  5. Navigate to the API Manager to verify API creation.

Edit an API name

Rename the API to align with the company standards and best practices. Save the extra effort instead of copying the API to rename it and then deleting the old one.

  1. Navigate to API Manager > API > API details:

    rename-api-editdetails.png

  2. Click Edit Details to rename the API:

    edit-details-api.png

  3. Click Save. A message “API details has been updated successfully” displays in the UI.

  • You can only rename the unpublished APIs. Published APIs cannot be renamed because that would change the endpoint URL of the API.

  • Unpublish the API to edit the API name.

  • Special characters such as |, <, >, [, ], {, },#, ?, /, and \. cannot be used.

Enabling "Try It Out" for your API

To allow API users to try out your API,

The Try it out button appears only if these two requirements are met.

To test the Try it out button for your API: Discovering APIs in the API Catalog

Troubleshoot for “Try It Out” functionality

Areas to troubleshoot when an error occurs

Error messages in the console

Resolution

CORS

Access to fetch is blocked by CORS policy: Request header field authorization is not allowed by Access-Control-Allow-Headers in preflight response.

  • Check if the CORS Restriction policy is enabled. The default CORS Restriction policy can be enabled in the Settings Panel from the Portal Manager, Enable Try Me checkbox.

  • Check Access Control Request Headers because it is a mandatory field if it not configured it can give an error.

The CORS policy with a default setting provides a standard configuration.

Network Failure

Network Error

Check the Network Connectivity.

URL scheme in CORS settings dialogue box

Mixed Content: The page<>was loaded over HTTPS, but requested an insecure resource<>. This request has been blocked; the content must be served over HTTPS.

  • Use only “http” or “https” for the CORS request.

  • Check if the page is loaded over HTTPS matches the URL HTTPS scheme in the CORS request. If your page was loaded over HTTPS, and requested an insecure resource with HTTP, then an error occurs

FeedMaster and Load Balancer

Failed to load resource: net::ERR_NAME_NOT_RESOLVED

  • Check if there is at least one active FeedMaster node, a JCC node, and active Load Balancer.

Deleting an API from the API Manager Console

To delete an API, you must delete all versions and the assets in those versions. For details, see the following topics:

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