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1 +Calling a SOAP Web service
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1 -{{container}}{{container layoutStyle="columns"}}(((
2 -= Annotations =
1 +{{container}}{{container layoutStyle="columns"}}(((
2 +When talking to external parties via a SOAP web service you need to define in eMagiz that you want to call a SOAP web service so eMagiz will form a correct SOAP message. On top of that configuration there is a support object in eMagiz that will help you with the analysis of your problems when calling the SOAP web service. In this microlearning, we will learn how to call a SOAP web service from eMagiz.
3 3  
4 -In this microlearning, we will focus on using annotations to clarify your thought process. In the annotation, you either describe a best practice everyone should follow when they change that flow (i.e. within the asynchronous routing), describe how the (more complex) parts of the flow work or describe (parts of) of your message definitions (i.e. CDM, API Gateway Data model, system message, etc.). This will help yourself and others every time changes are needed.
4 +Should you have any questions, please contact academy@emagiz.com.
5 5  
6 -Should you have any questions, please contact [[academy@emagiz.com>>mailto:academy@emagiz.com]].
7 -
8 -* Last update: May 9th, 2021
9 -* Required reading time: 5 minutes
10 -
11 11  == 1. Prerequisites ==
12 -
13 13  * Basic knowledge of the eMagiz platform
14 14  
15 15  == 2. Key concepts ==
10 +This microlearning centers around calling a SOAP Webservice.
16 16  
17 -This microlearning centers around using annotations.
18 -With annotations, we mean: A piece of text to explain something to yourself and others
12 +With SOAP, we mean: A messaging protocol specification for exchanging structured information in the implementation of web services in computer networks.
19 19  
20 -Annotations can be used for:
14 +* To call a REST Webservice you need either:
15 + ** A Web Service Outbound Gateway
16 +* Critical information when configuring this component:
17 + ** URL
18 + ** Retry Advice
19 + ** Error Handling
20 + ** Authentication
21 +
22 +== 3. Calling a SOAP Webservice ==
21 21  
22 -* Describing a best practice everyone should follow
23 -* Describing (more complex) parts of the flow
24 -* Describe (parts of) your message definitions
24 +Calling a SOAP Webservice within eMagiz can be done with the help of a Web Service Outbound Gateway. To correctly configure this component you need to consider the following elements:
25 25  
26 +* URL
27 +* Retry Advice
28 +* Error Handling
29 +* Authentication
26 26  
31 +We will discuss the first three items in this list in this microlearning. In the microlearnings that will follow this microlearning, we will delve deeper into various authentication possibilities.
27 27  
28 -== 3. Annotations ==
33 +Before we delve into the configuration of the component let us first move to Create and open an exit flow in which we want to call the SOAP Webservice. When you open the exit flow it will look similar to this:
29 29  
30 -In this microlearning, we will focus on using annotations on the flow level to clarify our thought process. In the annotation, you either describe a best practice everyone should follow when they change that flow (i.e. within the asynchronous routing) or describe how the (more complex) parts of the flow work. This will help yourself and others every time changes are needed within the flow.
35 +[[image:Main.Images.Microlearning.WebHome@novice-soap-webservice-connectivity-calling-a-soap-webservice--exit-flow-starting-point.png]]
31 31  
32 -Annotations can be used for:
37 +Now that we have opened the flow and are in "Start Editing" mode we need to add the web service outbound gateway to start with.
33 33  
34 -* Describing a best practice everyone should follow
35 -* Describing (more complex) parts of the flow
36 -* Describe (parts of) your message definitions
39 +[[image:Main.Images.Microlearning.WebHome@novice-soap-webservice-connectivity-calling-a-soap-webservice--web-service-outbound-component.png]]
37 37  
38 -To clarify the use cases let us take a look at how annotations can be added within the eMagiz platform. In our first example, we will take a look at asynchronous routing. In many eMagiz projects, a best practice is followed on how to add something to the asynchronous routing (or change something within the asynchronous routing). Because the best practice contains multiple steps it makes sense to use the annotation functionality of eMagiz to define all these steps and register them at the place you need them (i.e. the asynchronous routing). Having done so will result in something like this:
41 +=== 3.1 URL ===
39 39  
40 -[[image:Main.Images.Microlearning.WebHome@novice-devops-perspectives-annotations--annotation-best-practice-async-routing.png]]
43 +Now that we have added the correct component to the canvas it has become time to configure the component correctly. The first thing to configure when calling a SOAP Webservice is determining and registering the endpoint (URL) eMagiz should call to deliver the message too. As always in scenarios where an information element can change between environments, you should use a property reference and determine the correct value on a per-environment basis.
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42 -The second example is about using annotations on the flow level to describe parts of the flow. In this example, we will use the annotation to describe that we use a filter to determine which messages are picked up from a local directory and how we filter. That way anyway opening the flow has to merely read the annotation to get the context. Having done so will result in something like this:
45 +[[image:Main.Images.Microlearning.WebHome@novice-soap-webservice-connectivity-calling-a-soap-webservice--web-service-outbound-component-url.png]]
43 43  
44 -[[image:Main.Images.Microlearning.WebHome@novice-devops-perspectives-annotations--describe-parts-of-flow.png]]
47 +=== 3.2 Retry Advice ===
45 45  
46 -The third example does not take place on the flow level but the message definition level. Therefore instead of going to Create, we go to Design. In Design when you navigate to the CDM, API Gateway Data model, Event Streaming Data model, message definitions, etc. you have the option to add annotations to the canvas. In this example, we want to make clear to all that make changes that a certain part of our CDM is used by a lot of integrations within eMagiz and therefore everyone should be careful and think twice before adjusting anything related to that part. Having done so will result in something like this:
49 +The second setting we need to configure is the retry advice. With retry advice, you can guard your solution against temporary connection losses between eMagiz and the external party. As this can happen from time to time the best practice is to configure such a Retry Advice on every Web Service Outbound component. To add the Retry Advice move to the Advanced tab and move down to the Request handler advice chain segment. Within this segment, you will see a button called Retry Advice.
47 47  
48 -[[image:Main.Images.Microlearning.WebHome@novice-devops-perspectives-annotations--describe-crucial-part-of-cdm.png]]
51 +[[image:Main.Images.Microlearning.WebHome@novice-soap-webservice-connectivity-calling-a-soap-webservice--web-service-outbound-component-retry-advice-button.png]]
49 49  
50 -Now that we saw some examples let us turn our attention to the how. How can I add an annotation and how can I link it. Adding the annotation is simple. You drag the annotation icon from the left context menu onto the canvas. As a result, an empty annotation will be shown on the canvas. By double-clicking on it you can type whatever you want. Note that you need to be in "Start Editing" mode to change anything, including annotations.
53 +When you click on the Retry Advice button you will be prompted with a pop-up. In here you need to configure the exact settings
51 51  
52 -[[image:Main.Images.Microlearning.WebHome@novice-devops-perspectives-annotations--annotation-icon-context-menu.png]]
55 +[[image:Main.Images.Microlearning.WebHome@novice-soap-webservice-connectivity-calling-a-soap-webservice--web-service-outbound-component-retry-advice-pop-up-empty.png]]
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54 -When you are satisfied with what you have written down you can press the Save button. After you have done so you can rescale the annotation to ensure that the complete text is visible. To link the annotation to a component (on flow level) or an entity (on message definition level) you hover over the annotation until your mouse indicator changes to a + icon, execute a right-click and drag from the annotation to the component in question.
57 +The best practice for this configuration is as follows for asynchronous solutions:
58 +* Select the option called Simple Retry Policy
59 +* Set the max attempts at 6
60 +* Select the Fixed back off policy
61 +* Set the backoff period at 5000 (ms)
55 55  
56 -Now you know what annotations are good for and how you can add them within the eMagiz platform.
63 +When you have done so the configuration should look as follows. The only thing left is to press Save to save your Retry Advice configuration
57 57  
65 +[[image:Main.Images.Microlearning.WebHome@novice-soap-webservice-connectivity-calling-a-soap-webservice--web-service-outbound-component-retry-advice-pop-up-filled-in.png]]
58 58  
67 +=== 3.3 Error Handling ===
59 59  
60 -== 4. Assignment ==
69 +When calling a SOAP Web service with the configuration we have defined up till here you could suffer from cryptic error response you get back when the SOAP web service call fails. To improve the error handling to make your life easier when analyzing the problem you need to add a support object to the canvas and link it to the web service outbound gateway. This support object is named "Detailed SOAP Fault Message Resolver".
61 61  
62 -Add annotation on the flow level that describes how (a part of) a flow works.
63 -This assignment can be completed with the help of the (Academy) project that you have created/used in the previous assignment.
71 +To link the support object to your web service outbound gateway you open the web service outbound gateway, navigate to the Advanced tab, and select the Fault message resolver. Afterward press Save to save the link between the components.
64 64  
65 -== 5. Key takeaways ==
73 +[[image:Main.Images.Microlearning.WebHome@novice-soap-webservice-connectivity-calling-a-soap-webservice--web-service-outbound-component-fault-message-resolver.png]]
66 66  
67 -* Annotations can be used for:
68 - * Describing a best practice everyone should follow
69 - * Describing (more complex) parts of the flow
70 - * Describe (parts of) your message definitions
71 -* You can add annotations by dragging and dropping the annotation icon on the canvas.
75 +Now that we have configured the HTTP Outbound component to our liking we can press Save on the component level to store our changes. As a result the flow will look as follows:
72 72  
77 +[[image:Main.Images.Microlearning.WebHome@microlearning/novice-soap-webservice-connectivity-calling-a-soap-webservice--flow-result.png]]
73 73  
79 +== 4. Key takeaways ==
74 74  
75 -== 6. Suggested Additional Readings ==
81 +* eMagiz will create a valid SOAP message when using this component
82 +* eMagiz provides a support object for better error handling of SOAP faults
83 +* There are four key configuration elements:
84 + ** URL
85 + ** Retry Advice
86 + ** Error Handling
87 + ** Authentication
76 76  
77 -There are no suggested additional readings on this topic
89 +== 5. Suggested Additional Readings ==
78 78  
79 -== 7. Silent demonstration video ==
91 +* [[Crash Course (Menu)>>doc:Main.eMagiz Academy.Microlearnings.Crash Course.WebHome||target="blank"]]
92 +** [[Crash Course API Gateway (Navigation)>>doc:Main.eMagiz Academy.Microlearnings.Crash Course.Crash Course API Gateway.WebHome||target="blank"]]
93 +*** [[Setting up Exit gate (Explanation)>>doc:Main.eMagiz Academy.Microlearnings.Crash Course.Crash Course API Gateway.crashcourse-api-gateway-setting-up-exit-gate||target="blank"]]
94 +* [[Novice (Menu)>>doc:Main.eMagiz Academy.Microlearnings.Novice.WebHome||target="blank"]]
95 +** [[SOAP Web service Connectivity (Navigation)>>doc:Main.eMagiz Academy.Microlearnings.Novice.SOAP Web service Connectivity.WebHome||target="blank"]]
96 +*** [[Configure your SOAP web service (Explanation)>>doc:Main.eMagiz Academy.Microlearnings.Novice.SOAP Web service Connectivity.novice-soap-webservice-connectivity-configure-your-soap-webservice-gen3.WebHome||target="blank"]]
97 +*** [[Securing your SOAP Webservice (Explanation)>>doc:Main.eMagiz Academy.Microlearnings.Novice.SOAP Web service Connectivity.novice-soap-webservice-connectivity-securing-your-soap-webservice||target="blank"]]
98 +*** [[Validate Incoming Messages (Explanation)>>doc:Main.eMagiz Academy.Microlearnings.Novice.SOAP Web service Connectivity.novice-soap-webservice-connectivity-validate-incoming-messages-gen3.WebHome||target="blank"]]
99 +*** [[Endpoint Check (Explanation)>>doc:Main.eMagiz Academy.Microlearnings.Novice.SOAP Web service Connectivity.novice-soap-webservice-connectivity-endpoint-check-gen3.WebHome||target="blank"]]
100 +*** [[SOAP Headers (Explanation)>>doc:Main.eMagiz Academy.Microlearnings.Novice.SOAP Web service Connectivity.novice-soap-webservice-connectivity-soap-headers||target="blank"]]
101 +*** [[Authorization - Calling a SOAP Webservice (Explanation)>>doc:Main.eMagiz Academy.Microlearnings.Novice.SOAP Web service Connectivity.novice-soap-webservice-connectivity-authorization-calling-a-soap-webservice||target="blank"]]
102 +* [[Intermediate (Menu)>>doc:Main.eMagiz Academy.Microlearnings.Intermediate Level.WebHome||target="blank"]]
103 +** [[SOAP Web service Connectivity (Navigation)>>doc:Main.eMagiz Academy.Microlearnings.Intermediate Level.SOAP Web service Connectivity.WebHome||target="blank"]]
104 +* [[Expert (Menu)>>doc:Main.eMagiz Academy.Microlearnings.Expert Level.WebHome||target="blank"]]
105 +** [[Webservice Security (Menu)>>doc:Main.eMagiz Academy.Microlearnings.Expert Level.Webservice Security.WebHome||target="blank"]]
106 +* [[Calling a SOAP Web service (Search Result)>>url:https://docs.emagiz.com/bin/view/Main/Search?sort=score&sortOrder=desc&highlight=true&facet=true&r=1&f_space_facet=0%2FMain.&f_type=DOCUMENT&f_locale=en&f_locale=&f_locale=en&text=%22calling+a+SOAP+Web+service%22||target="blank"]]
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81 -This video demonstrates how you could have handled the assignment and gives you some context on what you have just learned.
82 -
83 -{{video attachment="novice-devops-perspectives-annotations.mp4" reference="Main.Videos.Microlearning.WebHome"/}}
84 -
85 85  )))((({{toc/}}))){{/container}}{{/container}}
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